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Microsurfacing (2010)

Chapter: Appendix A - Survey Questionnaire and Results

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NCHRP Sy nthesis Topic 41-12 Microsurfacing Best Practices Questionnaire for Public Agencies and Others PURPOSE OF THE SYNTHESIS: The purpose of this synthesis is to capture the various ways federal, state and local transportation agencies are utilizing microsurfacing as a preventive maintenance and/or pavement preservation treatment. The synthesis will identify different approaches and effective practices recognizing the differences in each of the climatic regions. The synthesis will also address how the agencies in the study utilize microsurfacing in high and low volume traffic conditions. You have been identified as a knowledgeable source for this information and we wo uld like to synthesize your ex perience with other pavement maintenance professionals in the US and overseas to determine those practices that have produced successful microsurfacing projects. This questionnaire will take approximately 45 minutes to complete. The purpose of this questionnaire is to collect specific information on microsurfacing practices from sources ranging from the municipal to the international level. Additionally, those respondents that believe that they have a microsurfacing project that wo uld make a good case study to illustrate a particularly successful microsurfacing best practice are invited to indicate their willingness to contribute detailed information about the project, and they will be contacted individually by the researcher to obtain the case study information. The results of this synthesis will be shared and distributed through AASHTO, the Federal Highway Administration, Transportation Research Board, and others, with the goal of assisting in the development and implementation of microsurfacing as a part of pavement preservation programs. I want to thank you in advance for your support for this project. This project’s results will furnish a means to disseminate the experience of maintenance engineers from around the world in a very straightforward fashion. Thank you for your time and information. Douglas D. Gransberg, PhD, PE Question 1 [Mandatory] Respondent Information Point of Contact Name; contact info: Question 2 Type of Agency/Organization: Federal Agency; State/Provincial Agency; County Agency; Municipal Agency; Private Question 3 If you checked private organization, what type? Question 4 If private, what is your involvement in microsurfacing? Question 5 Does your agency use microsurfacing in its pavement maintenance and/or pavement preservation program? Yes No [Skip to End] Additional Comment (if you'd like to further explain): General Program Information: (Non-agency respondents, please skip to question 11) Question 6 At this time, what proportion of your agency's highway centerline miles have microsurfacing as the surface wearing course? Example: 200 miles maintained & 180 miles with micro = 200/180 Question 7 Do you follow a specific preventive maintenance cycle for microsurfacing? Yes No Don't know APPENDIX A Survey Questionnaire and Results 76

77 Question 8 If yes, what is the cycle length? (i.e., roughly how many years) Question 9 How much microsurfacing work does your agency do each year? Approximately $/year of national currency/year Which includes approximately center-line miles/km per year Question 10 What percentage of your microsurfacing work is done with in-house crews? % is done in-house Question 11 How do you rate your organization's overall experience with the performance of microsurfacing? Unacceptable Poor Good Excellent Not Applicable Contract Crew In-house Crew Question 12 What is the typical service life of microsurfacing projects with which you have been involved (i.e., how many years do they typically last)? NOTE: You will be asked for the design life (the life you use in the design process) in the next section. Typical service life = years Design Procedures: Non-agency respondents—please answer the questions for a typical agency with which you have worked. Question 13 Does your organization use a formal design process for microsurfacing projects? Yes No Don't know Question 14 [Mandatory] What is the major reason for organization’s decision to apply a microsurfacing to a given pavement? (Check only one.) Distress (cracking) Oxidation Improve friction (skid) resistance Raveling Prevent water infiltration Fill surface rutting Provide a surface wearing course Improve striping visibility Other, please specify: Question 15 [Mandatory] Who performs the design? Agency in-house design section performs the design Design consultant performs the design under design contract Agency in-house materials lab section performs the design Microsurfacing contractor performs the design under the construction contract Agency in-house construction group performs the design Don't know Agency in-house maintenance group performs the design Other; Please specify: Question 16 If design is by others, does your agency review and approve/accept the design? Yes No Don't know Other, please specify:

78 Question 17 What is the “trigger point” (i.e., the condition that makes you decide to place a new treatment) in your microsurfacing decision-making process? (Check all that apply.) Pavement condition rating or index Age of the surface Level/amount of cracking Roughness (IRI or other metric) Friction/skid number Rutting Amount of oxidation No trigger point Other, please specify: Question 18 Does your agency consider environmental aspects of microsurfacing (e.g., emulsion versus hot-mix energy usage, preservation versus rehabilitation, etc.) as part of the treatment selection process? Yes No Don't know If yes, please explain how it is considered: Question 19 Microsurfacing is often used to restore friction/skid resistance. Before microsurfacing is placed, how does a road's existing friction/skid number compare to your agency's minimum friction/skid resistance standards? Lower than minimum At or close to minimums Above minimums No friction/skid number standards used in this context Varies. Could be below, at, above the minimum standards. Question 20 How would you describe the level of distress (cracking, etc.) on roads that generally receive a microsurfacing? Severe Moderate Slight None Question 21 How do you characterize the roadway's structural integrity (e.g., pavement, base, and subbase) that generally receives a microsurfacing? Excellent Good Fair Poor Very Poor Question 22 How do you characterize existing pavement conditions before the design of microsurfacing applications? Roughness (IRI or other metric); Level of oxidation; Qualitative (visual) factors We do not characterize existing conditions Question 23 What is the design procedure(s) you use/or permit? ISSA A 143 Method ASTM D 3910-98 Method ASTM D 6372-99a Method Texas Transportation Institute Method (TTI-1289) Austroads AGPT04K/09 Method Benedict “Proposed Performance” Design Method Empirical method based on past experience No formal design method Individual organizational method, please specify: If you answered "Individual organizational method" to the above question, if possible, please briefly describe your process in a Word document and e-mail copy of your design method to: dgransberg@ou.edu after you complete the survey. Question 24 How many years has your agency used the design procedure(s) you identified in the previous question? Less than 1 year 1 to 5 years 5 to 10 years More than 10 years Don't know Question 25 What is the typical design life in years for microsurfacing projects in your agency?

79 Question 26 What design criteria is used? (Check all that apply.) Pavement condition Absorption factor/oxidation Traffic volume Turning movements Percent trucks Texture factor Weather (cold/hot/rain/humidity) Precoat condition (green/dry) Source of materials Residual binder factor Number and width of lanes Grade/steepness factor Daily construction working window (hours of work) Other, please specify: Question 27 Do you vary the material design with regard to types of highways (e.g., urban, rural, etc.)? Yes No Don't know Question 28 If the answer to the previous question is yes, what are the factors used to differentiate between the different requirements? Number of lanes Average Daily Traffic Number of ESALs Proximity to urban areas Proximity to rural areas Other, please specify: Question 29 When field conditions warrant, do you apply a scratch (leveling) course in your typical microsurfacing design? Yes No Don't know Question 30 If the answer to the above question is yes, how does the size of aggregate in the scratch course differ from the surface course? Scratch coat aggregate is smaller Scratch coat aggregate is larger No change in scratch coat aggregate size Don’t know Other, please specify: Contracting Procedures: Non-agency respondents—please answer the questions for a typical agency with which you have worked. Question 31 Do you feel that an adequate number of experienced microsurfacing contractors bid for your jobs? Yes No Don't know Question 32 How many microsurfacing contractors typically bid your jobs? 1–3 4–6 7–9 10 or more Question 33 Which statement below best fits the annual volume of your agency's microsurfacing program? We let virtually the same amount of microsurfacing every year. Our microsurfacing program fluctuates + 20% each year. Our microsurfacing program fluctuates + 50% each year. We rarely know how much microsurfacing we are going to do each year. Other, please specify: Question 34 Do you have a prequalified list of contractors who are allowed to bid on your microsurfacing projects? Yes No Don't know Question 35 Do you require training and/or certification for contractor personnel? Yes No Don't know

80 Question 36 If yes, what type of training or certification? Question 37 Do you require training and/or certification for agency personnel? Yes No Don't know Question 38 If yes, what type of training or certification? Question 39 Do you require warranties in your microsurfacing projects? Yes No Don't know Question 40 If yes, what is the length of the warranty and what criteria (threshold values) are required? Question 41 In which months do you typically apply microsurfacing? January February March April May June July August September October November December Question 42 What types of contracts do you use for microsurfacing projects? (Check all that apply.) Unit price-low bid Lump sum/firm fixed price Cost plus Indefinite delivery/indefinite quantity Design-build Other, please specify: Question 43 What units do you use to measure and pay for microsurfacing binder? Square yard/square meter Gallon/liter Ton/tonne/megagram Other, please specify: Question 44 Please indicate your agency's reasons for using the pay units you selected above for binder. Shifts the quantity risk to the contractor Reduces the cost Fairest to the contractor Easier to accurately estimate Don’t know why we use them Units of Area (SY/SM) Units of Volume (Gal/liter) Units of Weight (ton/tonne/MG) Question 45 What units do you use to measure and pay for microsurfacing aggregate?

81 Question 46 Please indicate your agency's reasons for using the pay units you selected above for aggregate. Shifts the quantity risk to the contractor Reduces the cost Fairest to the contractor Easier to accuratel y estimate Don’t kno w wh y we use them Units of Area (SY/SM) Units of Volume (CY/CM) Units of Weight (ton/tonne/MG) Question 47 How long is a typical microsurfacing project? Centerline miles OR Centerline kilometers Question 48 What is the maximum traffic volume on roads to which your agency applies microsurfacing? ADT < 1000 ADT < 2000 ADT < 5000 ADT < 20,000 ADT > 20,000 Materials: Non-agency respondents—please answer the questions for a typical agency with which you have worked. Question 49 What aggregate gradation(s) shown in Table 2-2 do you use for your microsurfacing surface wearing course? (Check all that apply.) Type I Type II Type III Other: Please Specify: Question 50 Which gradation is most commonly used? Type I Type II Type III Other: Please Specify: Question 51 Are any special gradations used? Yes No Don't know If Yes, please specify the special gradations:

82 Question 52 What is the annual breakdown, on an approximate percentage basis, for the binders that your agency typically uses for microsurfacing projects? Binder % of Program Binder % of Program SS-1 C QS-P SS-1H C QS-1H CSS- 1 CQS-1HP CSS-1P LMCQS-1H CSS-1H Ralumac CSS-1H P Quick Set Mixing Grade Other: Please Specify binder and %: Question 53 How do you select the binder type for microsurfacing jobs? Local climate Traffic volume or ESALs Weather conditions in which seal will be applied Identified during design Compatibility with aggregate Past experience Other, please specify: Question 54 Do you use modifiers with your base asphalt or binder? Yes No Don't know Question 55 If yes, what modifiers are used? Polymers Latex Additives Anti-stripping agents Styrene Butadiene Rubber (SBR) SBR—Polyisoprene SBR—Thermoplastic Elastomers Other, please specify: Equipment: Non-agency respondents—please answer the questions for a typical agency with which you have worked. Question 56 What type of mixing equipment do you require? Continuous self-propelled Truck-mounted Both Other, please specify: Question 57 Do you require computer controlled mixing equipment? Yes No Don't know Question 58 What type of mixture controls do you require? Computer Revolution counter Other: Please specify: Question 59 What roller types are considered appropriate for use on microsurfacing? Static steel Pneumatic-tired Combination pneumatic/steel Vibratory rollers No rollers used

83 Question 60—Choice—One Answer (Drop Down) Do you require any specific makes and models (proprietary specifications) for the microsurfacing equipment? Yes No Don't know Question 61 If the answer to the above question is yes, which types have specified makes or models? Mixing equipment Rolling equipment Spreader boxes Traffic control equipment/devices Quality Assurance and Quality Control: Non-agency respondents—please answer the questions for a typical agency with which you have worked. Question 62 Who conducts the inspection of construction operations? Your agency Private consultant Contractor Other, please specify Question 63 Do you use an independent laboratory to evaluate microsurfacing mix design? Yes No Don't know Question 64 Does your agency have an incentive/disincentive pay factor for the aggregate meeting the target submitted on the mix design? Yes No Don't know Question 65 If the answer is yes to the above, please indicate the nature of the incentive/disincentive program? The incentive/disincentive program is: Question 66 Which of the following mix design tests are performed on your projects? Residual Asphalt Content Penetration Softening Point Sand equivalent Soundness Abrasion resistance Wet Stripping Test ISSA 114 Tests for the presence of clay Percent Sodium Sulfate Loss (resistance to freeze/thaw) Consistency Test ISSA TB 106 Modified Cohesion Test ISSA TB 139 Loaded Wheel Test ISSA TB 109 Wet-Track Abrasion ISSA TB 100 Set Time Test Cure Time Test ISSA TB 139 Lateral Displacement Test ISSA TB 147 Classification Test ISSA TB 144 Mix Time Test ISSA TB 113 Modified Cup Flow Test TTI Mixing Test Compatibility of aggregate with binder Question 67 Do you perform any field tests to monitor the quality of the mix? Yes No Don't know Question 68 If yes, what tests are done? Question 69 Do you take field material samples for compliance testing? Yes No Don't know Question 70 If yes, who takes the samples? Agency personnel General Engineering Consultant Contractor Independent lab

84 Question 71 When testing and accepting the aggregate for specification compliance, where is the acceptance test conducted? The pit/source The stockpile While transferring into the nurse units Just before it enters the microsurfacing paver mixing chamber Don't know Question 72 Do you require calibration of mixing equipment? Yes, in the field Yes, not in the field. Contractor furnishes a submittal that verifies the calibration. Question 73 If yes, how often? Question 74 Do you require calibration of spreading equipment? Yes, in the field Yes, Contractor furnishes a submittal verifies the calibration No Don’t know No Don’t know Question 75 If Yes, how often? Question 76 What tolerances are allowed for testing mix designs? TEST TOLERANCES Mix design testing Stockpile testing Emulsion testing Other testing Question 77 Beyond calibration of mixing and spreading equipment, do you perform any other field tests to check material application rates? Yes No Don't know Question 78 If yes, what tests are done? Please e-mail a copy of the test to dgransberg@ou.edu if possible. Product Performance: Non-agency respondents—please answer the questions for a typical agency with which you have worked. Question 79 How does your organization define “success” for a microsurfacing project? Meets expected service life Does not fail shortly after construction Achieves desired friction/skid number Qualitative measures—look, color, etc. Meets project specification Question 80 What common distresses are observed in your completed microsurfacing projects? Raveling Bleeding Corrugation Crack reflection Streaking Transverse joints Longitudinal Joints Other; Please specify:

85 Question 81 Rate these factors as to their impact in minimizing microsurfacing defects? Most Impact Some impact Neutral Little impact No Impact Design Method Better Binder Better Aggregates Construction Procedure Contractor Experience QA/QC Program Preconstruction road preparation Selecting the right project Question 82 What is the most common public-user complaint about microsurfacing? (Check one only.) Loose stone Road noise Vehicle ride Appearance Don't know We don't get complaints Question 83 How would you generally describe the pavement ride on roads after they receive a new microsurface? Excellent Good Fair Poor Very Poor Question 84 If your organization had microsurfacing failures, which of the following were a likely cause? Weather Improper application rate Dirty or dusty aggregate Aggregate gradation Improper ambient and/or pavement temperature Improper binder viscosity Improper binder temperature Not applicable Other, Please specify: Question 85 Which factors are most critical in achieving the required service life of your microsurfacing projects? Original substrate surface quality Underlying pavement structure Maintenance funding Friction loss Traffic Cold climate considerations (freeze/thaw cycles, snowplowing, etc.) Question 86 Which methods do you use to maintain your microsurfaced roads? (Check all that apply.) Crack sealing Surface treatments (seal coat) Fog seal None I don't know Question 87 If there is anything that you would like to add that was not covered in this questionnaire that you feel would benefit this study, please write your comments below: Additional comments:

86 Thank you very much for your contribution. If you input your e-mail on the initial page, you will be sent a link where you can download a free copy of the completed synthesis when it is completed. In the meantime, feel free to give me a call if you have questions on this subject. Doug Gransberg, PhD, PE Principal Investigator University of Oklahoma 405-325-6092 dgransberg@ou.edu Agency Use Micro? Agency Use Micro? Agency Use Micro? Agency Use Micro? AK No KS Yes OK Yes AB Yes AL Yes LA Yes OR No BC Yes AR No MI Yes OR-W No MNT Yes AZ Yes MN Yes PA Yes NB Yes CA Yes MO Yes RI No NF No CN No MS Yes SC Yes NS Yes CO No MT No SD Yes NWT No DE Yes NC Yes TN Yes ON Yes FL No ND Yes TX Yes PEI No GA No NH Yes UT Yes QB Yes HI No NJ* Yes VA Yes SA Yes IA Yes NM Yes VT No YK No ID No NV Yes WA No AU—Vic Yes IL Yes NY yes WI* Yes NZ—Cant Yes IN Yes OH* Yes WY Yes NZ—Well Yes * Responded “yes” to survey, but did not submit a complete response. TABLE A1 SUMMARY OF SURVEY RESPONSES

St a t e / P r o v Q u e s t i o n 2 : S t a t e / P r o v i n c i a l A g e n c y Q u e s t i o n 5 : D o e s y o u r a g e n c y u s e m i c r o s u r f a c i n g i n i t s p a v e m e n t m a i n t e n a n c e a n d / o r p a v e m e n t p r e s e r v a t i o n p r o g r a m ? Q u e s t i o n 6 : R u r a l – L o c a l ( T o t a l m i l e s / K M m a i n t a i n e d - M i l e s / K M w i t h M i c r o s u r f a c i n g ) Q u e s t i o n 6 : R u r a l – I n t e r s t a t e ( T o t a l m i l e s / K M m a i n t a i n e d - M i l e s / K M w i t h M i c r o s u r f a c i n g ) Q u e s t i o n 6 : U r b a n – L o c a l ( T o t a l m i l e s / K M m a i n t a i n e d - M i l e s / K M w i t h M i c r o s u r f a c i n g ) Q u e s t i o n 6 : U r b a n – I n t e r s t a t e ( T o t a l m i l e s / K M m a i n t a i n e d - M i l e s / K M w i t h M i c r o s u r f a c i n g ) Q u e s t i o n 7 : D o y o u f o l l o w a s p e c i f i c p r e v e n t i v e m a i n t e n a n c e c y c l e f o r m i c r o s u r f a c i n g ? Q u e s t i o n 8 : I f y e s , w h a t i s t h e c y c l e l e n g t h ? ( i . e . r o u g h l y h o w m a n y y e a r s ) Q u e s t i o n 9 : A p p r o x i m a t e l y $ / y e a r o f N a t i o n a l c u r r e n c y / y e a r $ m i l l i o n s Q u e s t i o n 9 : W h i c h i n c l u d e s a p p r o x i m a t e l y c e n t e r - l i n e m i l e s / K M p e r y e a r Q u e s t i o n 1 0 : W h a t p e r c e n t a g e o f y o u r m i c r o s u r f a c i n g w o r k i s d o n e w i t h i n - h o u s e c r e w Q u e s t i o n 1 1 : C o n t r a c t c r e w Q u e s t i o n 1 1 : I n - h o u s e c r e w Q u e s t i o n 1 2 : W h a t i s t h e t y p i c a l s e r v i c e l i f e o f a m i c r o s u r f a c i n g p r o j e c t s w i t h w h i c h y o u h a v e b e e n i n v o l v e d ? ( i . e h o w m a n y y e a r s d o t h e y t y p i c a l l y l a s t ) N O T E : Y o u w i l l b e a s k e d f o r t h e d e s i g n l i f e Q u e s t i o n 1 3 : D o e s y o u r o r g a n i z a t i o n u s e a f o r m a l d e s i g n p r o c e s s f o r m i c r o s u r f a c i n g p r o j e c t s Q u e s t i o n 1 4 : W h a t i s t h e m a j o r r e a s o n f o r o r g a n i z a t i o n ’ s d e c i s i o n t o a p p l y a m i c r o s u r f a c i n g t o a g i v e n p a v e m e n t ? ( C h e c k o n l y o n e ) AL X Yes X Yes X Yes X Yes X Yes X Yes X Yes X Yes X Yes X Yes X Yes X Yes X Yes X Yes X Yes X Yes No 60 miles 0 4 6 Yes Other AZ 2000/110m 5000/90 No $2M 40 center- 0 5 6 No Raveling CA 10569/335 No 2.5M 20 0 0 0% 4 0 0 4 4-6 years Yes Surface course DE No 500000 0 4 6 unsure No Seal water IA 250/9600 0 0 0 DK $500,000 10 miles 4 0 8 years Yes Oxidation IL Unk Unk Unk Unk No Variable 0 6 No Other IN Yes 8to12 $5-6 million 149 0 3 4 6 Yes Oxidation KS 8880/140 485/15 115/0 50/0 No 1 mil 30 4 5 No Rutting LA 18,394/63 DK $6.28M 63 6 No Rutting MI 253 30 115 16 No 2 mil 60 4 5 Yes Seal water MN 100 No 3 mil 100 miles 5% 5 4 Yes PM MO 0/ 0/23,000 0/ 12.5/11K No $591,500 12.5 None. 4 7 years Yes Surface course NC 79,000/63 79,000/62 79,000/14 No $1.9 million/yr 48 none 4 DK DK Seal water ND 7072/211 1023/137 297/8 119/0 No 2008: $6,355,00 119 4 6 6 6 6 6 6 6 7 years Yes Surface course NH 4550/10 4560/25 No 1-2 mil 5to15 0 4 6 Yes Seal water NM 9,871/188 891/50 1,135/214 109/69 No 5 mil 143 0 4 6 5 5 years DK 8 6-8 years 5 to 7 years 20 4 No Seal water Table A2 COMPLETE SURVEY RESPONSES TO INDIVIDUAL QUESTIONS 87

88 1 2 5 6 6 6 6 7 8 9 9 10 11 11 12 13 14 NV X Yes 4330/98 460/1 488/70 105/2 No $3.6M 43 miles/y 0 4 6 No Surface course NY x yes 9081/850 836/25 4200/100 852/25 No 5 mil 150 0 4 6 Yes Oxidation OK X Yes 0 0 3% 0 No $2M $2M12 miles 2 6 7 No Surface course PA X Yes 28,021/280 847/12 10K/113 505/5 No 2.2mil 102 4 7-May Yes Raveling SC X Yes 28170/67 580/0 11520/40 262/0 No 2.7 mil 53 0 4 6 6 6 No Surface course SD X Yes ? No 10000 0 6 No Skid TN X Yes 12996/530 1100/8 No 9367120 139 0 6 Yes Seal water TX x Yes 640K/15K No $12 million/year 0 6 No Surface course UT X Yes 4300/43 770/102 600/98 170/10 Yes 6 mil 40-50 0 6 Yes Surface course VA X Yes 10% of system No 0 6 No Cracking WY X Yes 4958/12 1980/286 304/8 189/0 No $2.5M 30 0 3 4 3 4 4 4 6 Yes Surface course AB X Yes 32K/100K No $60,000 Cdn/ye 25 to 40 km 40% 3 to 8 No Raveling BC X Yes limited No 4 5 Yes Seal water MNT YesX 553/12665 No $9m 170km 40 10yr No Rutting NB X Yes No 1.25 mi; 16km 0 4 6 No Rutting NS X Yes 2000/360 Yes 5to7 2-3mil 40-60km 5 70 No Raveling ON X Yes 606 49 No 3.6mol 65 0 4 7to9 No Rutting QB X Yes 2000/100 No some 4 7 Yes Oxidation SA X Yes No 10mil 200km 5 5 6 6 6 6 6 2 4 5to7 Yes Rutting AU X Yes 0 5 0 0 No up to $2 millio 50 nil 4 6 No Oxidation NZ - Cant Yes No 4 Yes Surface course NZ - Well Yes No 4 2-4 years 6 to 8 5 6 to 8 4 to 7 years 8-May 7-May 1-=15 5 No data as we 7-8 years on av 7-8 years on av 4 4 Yes Surface course

89 S t a t e / P r o v Q u e s t i o n 1 5 : W h o p e r f o r m s t h e d e s i g n ? Q u e s t i o n 1 6 : I f d e s i g n i s b y o t h e r s , d o e s y o u r a g e n c y r e v i e w a n d a p p r o v e / a c c e p t t h e d e s i g n ? Q u e s t i o n 1 7 : “ t r i g g e r p o i n t ” P a v e m e n t c o n d i t i o n r a t i n g o r i n d e x Q u e s t i o n 1 7 : L e v e l / a m o u n t o f c r a c k i n g Q u e s t i o n 1 7 : F r i c t i o n / s k i d n u m b e r Q u e s t i o n 1 7 : A m o u n t o f o x i d a t i o n Q u e s t i o n 1 7 : A g e o f t h e Q u e s t i o n 1 7 : R o u g h n e s s ( I R I o r o t h e r m e t r i c ) Q u e s t i o n 1 7 : R u t t i n g Q u e s t i o n 1 7 : N o t r i g g e r p o i n t Q u e s t i o n 1 8 : D o e s y o u r a g e n c y c o n s i d e r e n v i r o n m e n t a l a s p e c t s o f m i c r o s u r f a c i n g ( e . g . e m u l s i o n v e r s u s h o t - m i x e n e r g y u s a g e ) Q u e s t i o n 1 9 : M i c r o s u r f a c i n g i s o f t e n u s e d t o r e s t o r e f r i c t i o n / s k i d r e s i s t a n c e . B e f o r e m i c r o s u r f a c i n g i s p l a c e d , h o w d o e s a r o a d ' s e x i s t i n g f r i c t i o n / s k i d n u m b e r c o m p a r e t o y o u r Q u e s t i o n 2 0 : H o w w o u l d y o u d e s c r i b e t h e l e v e l o f d i s t r e s s ( c r a c k i n g , e t c . ) o n r o a d s t h a t g e n e r a l l y r e c e i v e a m i c r o s u r f a c i n g ? Q u e s t i o n 2 1 : H o w d o y o u c h a r a c t e r i z e t h e r o a d w a y ' s s t r u c t u r a l i n t e g r i t y ( e . g . ; p a v e m e n t , b a s e a n d s u b b a s e ) t h a t g e n e r a l l y r e c e i v e s a m i c r o s u r f a c i n g ? Q u e s t i o n 2 2 c h a r a c t e r i z e e x i s t i n g p a v e m e n t : Q u e s t i o n 2 2 : L e v e l o f O x i d a t i o n Q u e s t i o n 2 2 : Q u a l i t a t i v e ( v i s u a l ) f a c t o r s Q u e s t i o n 2 2 : W e d o n o t c h a r a c t e r i z e e x i s t i n g c o n d i t i o n s Q u e s t i o n 2 3 : I S S A A 1 4 3 M e t h o d Q u e s t i o n 2 3 : A S T M D 3 9 1 0 - 9 8 M e t h o d Q u e s t i o n 2 3 : A S T M D 6 3 7 2 - 9 9 a M e t h o d Q u e s t i o n 2 3 : T T I M e t h o d Q u e s t i o n 2 3 : A u s t r o a d s A G P T 0 4 K / 0 9 M e t h o d Q u e s t i o n 2 3 : B e n e d i c t “ P r o p o s e d P e r f o r m a n c e ” Q u e s t i o n 2 3 : E m p i r i c a l m e t h o d b a s e d o n p a s t Q u e s t i o n 2 3 : N o f o r m a l d e s i g n m e t h o d Q u e s t i o n 2 3 : I n d i v i d u a l o r g a n i z a t i o n a l m e t h o d , Q u e s t i o n 2 4 : H o w m a n y y e a r s h a s y o u r a g e n c y u s e d t h e d e s i g n p r o c e d u r e ( s ) y o u i d e n t i f i e d i n t h e p r e v i o u s q u e s t i o n ? AL Agency (mat'ls) Yes No Varies. Slight Good X Spe 1to5 AZ Contractor Yes X X Yes Varies. Slight Good X X X X DK CA Contractor Yes X None Slight Good X 5to10 DE Agency (maint) No No None Slight Good X 1to5 IA Contractor Yes No No Varies. None Good X X X >10 IL Other Yes X None Moderate Good X 1to5 IN Contractor Yes X No No No Varies. Slight Good X contDK KS Contractor Yes X X Varies. Slight Good >10 LA Contractor Yes No None Slight Fair X 1to5 MI Contractor Yes X No No None Slight Excellent 5to10 MN Contractor Yes X X None Moderate Fair X X >10 MO Agency (des) NA X X Lower Moderate Good X X X >10 NC DK X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X No None Moderate Good X X X X 1to5 ND Contractor Yes X No None Moderate Fair X 1to5 NH Contractor Yes No None None Excellent X cont1to5 NM Contractor Yes X No None Moderate Good X NM 1to5

90 X 1 15 16 17 17 17 17 17 17 17 17 18 19 20 21 22 22 22 22 23 23 23 23 23 23 23 23 23 24 NV Contractor Yes X X No Varies. Slight Good X X 1to5 NY Contractor Yes X X X X X X No Above Moderate Good X >10 OK Agency (maint) NA X XX X X XX XXX No Varies. Moderate Good X X X X X X X 1to5 PA Agency (des) NA DK X Yes Varies. Moderate Good X 1to5 SC Contractor Contractor Contractor Contractor Contractor Contractor Contractor Contractor Contractor X X X X XXX XX X No None Slight Good X 1to5 SD NA No Lower Moderate Good X DK TN Yes X X No DK Slight Excellent X >10 TX Yes X X No Minimum Moderate Fair X >10 UT Yes X X No X No Varies. Slight Good X X 5to10 VA Yes X X Yes X Yes Above Slight Good X >10 WY Yes X X X Varies. Moderate Good X 5to10 AB Other No None No None No None Moderate Excellent X DK BC Yes X X X X X X X X X X None Moderate Good X 1to5 MNT Agency (mat'ls) NA X Slight Good X X X 5to10 NB Agency (des) NA X X No None None Excellent X DK NS Contractor No X Moderate Excellent X 5to10 ON Contractor Yes X X X X X X No No No No Varies. Varies. Moderate Good X >10 QB Contractor Yes X X Slight Good X 1to5 SA Contractor Yes X X X Yes None Moderate Fair X 5to10 AU Contractor Yes X X X Yes None Moderate Good X <1 Contractor NA X X Varies. Slight Good X >10 Contractor NA X X Varies. Slight Good X >10 X X X X X X X X Ace cold VDO NZ - C NZ - W

91 S t a t e / P r o v Q u e s t i o n 2 5 : W h a t i s t h e t y p i c a l d e s i g n l i f e i n y e a r s f o r m i c r o s u r f a c i n g p r o j e c t s i n y o u r a g e n c y ? Q u e s t i o n 2 6 d e s i g n p r o c e d u r e : P a v e m e n t Q u e s t i o n 2 6 : A b s o r p t i o n F a c t o r / O x i d a t i o n Q u e s t i o n 2 6 : T r a f f i c V o l u m e Q u e s t i o n 2 6 : T u r n i n g M o v e m e n t s Q u e s t i o n 2 6 : P e r c e n t t r u c k s Q u e s t i o n 2 6 : T e x t u r e f a c t o r Q u e s t i o n 2 6 : W e a t h e r Q u e s t i o n 2 6 : P r e c o a t c o n d i t i o n ( g r e e n / d r y ) Q u e s t i o n 2 6 : S o u r c e o f m a t e r i a l s Q u e s t i o n 2 6 : R e s i d u a l b i n d e r f a c t o r Q u e s t i o n 2 6 : N u m b e r a n d w i d t h o f l a n e s Q u e s t i o n 2 6 : G r a d e / s t e e p n e s s f a c t o r Q u e s t i o n 2 6 : D a i l y c o n s t r u c t i o n w o r k i n g w i n d o w ( h o u r s o f w o r k ) Q u e s t i o n 2 7 : D o y o u v a r y t h e m a t e r i a l d e s i g n w i t h r e g a r d t o t y p e s o f h i g h w a y s ? Q u e s t i o n 2 8 : A v e r a g e D a i l y T r a f f i c Q u e s t i o n 2 8 : N u m b e r o f E S A L s Q u e s t i o n 2 8 : P r o x i m i t y t o u r b a n a r e a s Q u e s t i o n 2 8 : P r o x i m i t y t o r u r a l a r e a s Q u e s t i o n 2 9 : W h e n f i e l d c o n d i t i o n s w a r r a n t , d o y o u a p p l y a s c r a t c h ( l e v e l i n g ) c o u r s e i n y o u r t y p i c a l m i c r o s u r f a c i n g d e s i g n Q u e s t i o n 3 0 : I f t h e a n s w e r t o t h e a b o v e q u e s t i o n i s y e s , h o w d o e s t h e s i z e o f a g g r e g a t e i n t h e s c r a t c h c o u r s e d i f f e r f r o m t h e s u r f a c e c o u r s e ? Q u e s t i o n 3 1 : D o y o u f e e l t h a t a n a d e q u a t e n u m b e r o f e x p e r i e n c e d m i c r o s u r f a c i n g c o n t r a c t o r s b i d f o r y o u r j o b s Q u e s t i o n 3 2 : H o w m a n y m i c r o s u r f a c i n g c o n t r a c t o r s t y p i c a l l y b i d y o u r j o b s ? Q u e s t i o n 3 3 : W h i c h s t a t e m e n t b e l o w b e s t f i t s t h e a n n u a l v o l u m e o f y o u r a g e n c y ' s m i c r o s u r f a c i n g p r o g r a m ? Q u e s t i o n 3 4 : D o y o u h a v e a p r e q u a l i f i e d l i s t o f c o n t r a c t o r s w h o a r e a l l o w e d t o b i d o n y o u r m i c r o s u r f a c i n g p r o j e c t s ? Q u e s t i o n 3 5 : D o y o u r e q u i r e t r a i n i n g a n d / o r c e r t i f i c a t i o n f o r c o n t r a c t o r p e r s o n n e l ? AL 6 to 7 No AZ 5 years DK DK DK CA 5 years Yes X X X X X DE 5 No IA 5 years IL DK DK IN 8 DK KS 5 No NoLA 6 to 8 MI none Yes MN 5 to 7 No MO 7 to10 Yes NC 7 DK ND 7 to10 No NH 5 No NM 4to7 No X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X Yes Yes Same Same Same Same Same Same Same Same Same Same Smaller Other Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No No No No DK DK Yes No No Yes No No Yes No No No No Yes Yes DK DK Yes; No; No; Yes; Yes; Yes; No; Yes; No; No; No; Yes; No; Yes; DK DK No; No; No; No; DK; No; DK No; No; DK No; No; No; DK 1to3 1to3 1to3 4to6 1to3 1to3 1to3 1to3 1to3 1to3 1to3 1to3 1to3 1to3 1to3 4to6 Different Other Different Different Same Other Different Other Other Different 20% Different 20% Different Same Same Scratch co

92 1 25 26 NV X 26 26 26 26 26 26 26 26 26 26 26 26 X 5 NY X6 to 8 OK 10 PA 5 to 7 X X SC DK SD 5 TN 6 to 8 TX 5 to 7 UT 6 to 10 X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X 28 X 28 X X X X X 28 28 X X X X X X VA na WY 7to10 AB 5 BC 5 MNT 10yrs NB 5 NS 7 to 10 ON 7 to 10 QB 7 SA 5 AU 15 to 20 NZ - Cant 8 years NZ - Well 27 No No No Yes No DK Yes No No Yes Yes No No No No No Yes No No No Yes Yes 29 Yes Yes Yes Yes Yes DK Yes No Yes Yes Yes No Yes Yes Yes Yes Yes Yes No Yes Yes Yes 31 Yes Yes No Yes No Yes Yes Yes No No No No No Yes No No Yes No No No Yes Yes 34 Yes; No; Yes; Yes; Yes; DK No; No; No; No; No; No; No; No; No; No; No; No; No; Yes; Yes; Yes; 35 No; No; DK No; No; DK No; No; No; Yes; No; No; No; Yes; No; No; No; No; No; No; No; No; 32 1to3 1to3 1to3 5to7 1to3 1to3 1to3 1to3 1to3 1to3 1to3 1to3 1to3 1to3 1to3 1to3 1to3 1to3 4to6 1to3 1to3 1to3 33 Same 20% Other Different 20% Same 20% 50% Different 20% Other Other Same Different Same 50% Same 20% 50% 20% 20% 30 Same Same Other Same Same Same Same Other Same Same Same Same Same Same Smaller Same Same Same8 years

93 S t a t e / P r o v Q u e s t i o n 3 7 : D o y o u r e q u i r e t r a i n i n g a n d / o r c e r t i f i c a t i o n f o r a g e n c y p e r s o n n e l ? Q u e s t i o n 3 9 : D o y o u r e q u i r e w a r r a n t i e s i n y o u r m i c r o s u r f a c i n g p r o j e c t s ? Q u e s t i o n 4 0 : I f y e s , w h a t i s t h e l e n g t h o f t h e w a r r a n t y a n d w h a t c r i t e r i a ( t h r e s h o l d v a l u e s ) a r e r e q u i r e d ? Q u e s t i o n 4 1 : J a n u a r y Q u e s t i o n 4 1 : F e b r u a r y Q u e s t i o n 4 1 : M a r c h Q u e s t i o n 4 1 : A p r i l Q u e s t i o n 4 1 : M a y Q u e s t i o n 4 1 : J u n e Q u e s t i o n 4 1 : J u l y Q u e s t i o n 4 1 : A u g u s t Q u e s t i o n 4 1 : S e p t e m b e r Q u e s t i o n 4 1 : O c t o b e r Q u e s t i o n 4 1 : N o v e m b e r Q u e s t i o n 4 1 : D e c e m b e r Q u e s t i o n 4 2 : U n i t p r i c e - l o w b i d Q u e s t i o n 4 2 : I n d e f i n i t e d e l i v e r y / i n d e f i n i t e q u a n t i t y Q u e s t i o n 4 3 : S q u a r e y a r d / s q u a r e m e t e r b i n d e r Q u e s t i o n 4 3 : T o n Q u e s t i o n 4 3 : G a l l o n / l i t e r Q u e s t i o n 4 4 : R e a s o n U n i t s o f A r e a ( S Y / S M ) Q u e s t i o n 4 4 : U n i t s o f V o l u m e ( G a l / L i t e r ) Q u e s t i o n 4 4 : U n i t s o f W e i g h t ( t o n / t o n n e ) Q u e s t i o n 4 5 : U n i t s o f A r e a : S q u a r e y a r d / m e t e r Q u e s t i o n 4 5 : U n i t s o f V o l u m e : C u b i c y a r d / m e t e r Q u e s t i o n 4 5 : U n i t s o f W e i g h t : T o n / t o n n e Q u e s t i o n 4 6 : R e a s o n U n i t s o f A r e a ( S Y / S M ) Q u e s t i o n 4 6 : U n i t s o f V o l u m e ( C Y / C M ) Q u e s t i o n 4 6 : U n i t s o f W e i g h t ( t o n ) Q u e s t i o n 4 7 : A v e j o b l e n g t h C e n t e r - l i n e m i l e s Q u e s t i o n 4 8 : m a x A D T AL AZ CA DE IA IL IN KS LA MI MN MO NC ND NH NM DK No; No; No; No; No; No; Yes; No; No; No; Yes; No; No; No; No; No; No; No; No; No; No; Yes; No; Yes; X X X X X X No; No; No; No; No; Yes; X X X X X 3 years 1to3 1 years No; X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X 4 4 4 5 4 4 4 5 4 X X X X X X X X X X X 3 5 3 5 5 5 3 3 4 X X X X X X 5 5 5 5 2 4 4 5 2 3 3 5 5 3 5 5 10 9 25 2 10 10 10 6 2 7to10 Variable 10 2to15 7.2 10 8 X X X X X X X X X X 3 3 3 5 2 2 4 4 3 3 5 3 4 3 3 3 4 X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X

94 1 NV NY OK PA SC SD TN TX UT VA WY AB BC MNT NB NS ON QB SA AU NZ - Cant NZ - Well 37 Yes; No; DK No; No; DK No; No; No; Yes; Yes; No; DK No; No; No; No; No; Yes; No; No; No; 39 Yes; Yes; Yes; No; No; DK No; Yes; No; No; No; Yes; Yes; Yes; Yes; Yes; Yes; Yes; Yes; Yes; Yes; Yes; 42 42 X X X X X X X X X X X X X X X X X X 44 X X X X X X X X XX X 45 X X X X X X X X X 43 43 x X X X X X X X 41 X X X X X X X X X X X X X X X X X X 41 X X X X X X X X X X X X X X X X X X 41 X X X X X X X X X X X X X X X X X X 41 X X X X X X X X X X X X X X 41 X X X X X X X X X X X 45 X 44 3 5 2 4 4 4 4 4 4 X X 47 2.5 5to10 8 2to6 2 15to20 5t015 5to10 5 7 5to10 20 15km varies 10 5to10 10 4t07 16to50 3 3 43 2 5 4 3 5 3 3 3 4 4 4 3 4 46 2 5 3 5 3 4 3 4 4 4 4 5 46 5 4 44 5 5 4 4 2 4 4 3 4 4 4 46 5 4 4 43 X X X X X X X X X X X X 41 X X X X X 41 X X X X 40 2 1year 1year 2year 1year 1year 2yr 2yr 2yr 1yr 1yr 1yr 1yr 1yr 41 X X X 41 X X X 41 X X X 41 X X X 41 X X X

95 S t a t e / P r o v Q u e s t i o n 4 8 : m a x A D T Q u e s t i o n 4 9 : T y p e I Q u e s t i o n 4 9 : T y p e I I Q u e s t i o n 4 9 : T y p e I I I Q u e s t i o n 5 0 : W h i c h g r a d a t i o n i s m o s t c o m m o n l y u s e d ? Q u e s t i o n 5 1 : A r e a n y s p e c i a l g r a d a t i o n s u s e d ? Q u e s t i o n 5 2 : S S - 1 : ( % ) Q u e s t i o n 5 2 : S S - 1 H : ( % ) Q u e s t i o n 5 2 : C S S - 1 : ( % ) Q u e s t i o n 5 2 : C S S - 1 P ( % ) Q u e s t i o n 5 2 : C S S - 1 H : ( % ) Q u e s t i o n 5 2 : C S S - 1 H P : ( % ) Q u e s t i o n 5 2 : C S S - 1 P : ( % ) Q u e s t i o n 5 2 : C Q S - 1 H : ( % ) Q u e s t i o n 5 2 : C Q S - 1 H P : ( % ) Q u e s t i o n 5 2 : L M C Q S - 1 H : ( % ) Q u e s t i o n 5 2 : R a l u m a c ™ : ( % ) Q u e s t i o n 5 2 : Q u i c k S e t M i x i n g G r a d e : ( % ) Q u e s t i o n 5 3 H o w d o y o u s e l e c t t h e b i n d e r t y p e : Q u e s t i o n 5 3 : T r a f f i c v o l u m e o r E S A L s Q u e s t i o n 5 3 : W e a t h e r c o n d i t i o n s i n w h i c h s e a l Q u e s t i o n 5 3 : I d e n t i f i e d d u r i n g d e s i g n Q u e s t i o n 5 3 : C o m p a t i b i l i t y w i t h a g g r e g a t e Q u e s t i o n 5 3 : P a s t e x p e r i e n c e Q u e s t i o n 5 4 : D o y o u u s e m o d i f i e r s w i t h y o u r b a s e a s p h a l t o r b i n d e r ? Q u e s t i o n 5 5 : P o l y m e r s Q u e s t i o n 5 5 : L a t e x Q u e s t i o n 5 5 : A d d i t i v e s Q u e s t i o n 5 5 : A n t i - s t r i p p i n g a g e n t s Q u e s t i o n 5 5 : S t y r e n e B u t a d i e n e R u b b e r ( S B R ) Q u e s t i o n 5 5 : S B R - P o l y i s o p r e n e Q u e s t i o n 5 5 : S B S – T h e r m o p l a s t i c E l a s t o m e r s Q u e s t i o n 5 6 : W h a t t y p e o f m i x i n g e q u i p m e n t d o y o u r e q u i r e ? Q u e s t i o n 5 7 : D o y o u r e q u i r e C o m c o n t r o l l e d m i x i n g e q u i p m e n t ? Q u e s t i o n 5 8 : W h a t t y p e o f m i x t u r e c o n t r o l s d o y o u r e q u i r e ? AL AZ CA DE IA IL IN KS LA MI MN MO NC ND NH NM 4 4 5 2 3 3 5 5 5 5 5 5 3 X 5 2 5 Yes Yes Yes X Yes Yes X Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes DK No No No Yes Yes No No No No Yes DK No Other Rev Rev Rev Com Com Rev Rev Other Rev Com Com Rev No No CSP CSP Other CSP Other Both Both CSP Both CSP Other Both CSP CSP CSP 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 100 0 0 100 0 60 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 40 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 X X X X X X X X 0 0 100CRS-2P 0 0 0 0 0 0 0 0 0 0 X X 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0 Type III Type III Type II Type II Type II Type III Type II Type II Type III Type II Type II Type II Type II No No No No No No Yes No No No No No No No X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X Other: Ple

96 1 NV NY OK PA SC SD TN TX UT VA WY AB BC MNT NB NS ON QB SA AU NZ - Can NZ - We 48 49 5 5 5 5 4 3 5 5 5 5 4 5 4 2 5 5 5 4 4 49 50 51 52 X X X X X X 53 X X 53 X X X 53 X X X 53 X X 53 X X X X X 1 4 4 49 X X X X X X X X X X X X X X X X X 53 X 55 X X X 55 X X X X X X X X X X X X X X X 55 X X 55 X 55 X 5555 X X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Type III Type II Type II Type II Type II Type II Type II Type III Type III Type III Type III Type III Type III Type III Type III Type III No No No No No No Yes Yes No Yes No No No No No Other: Ple Other: Ple Other: Ple Yes Yes Yes No Yes No No 54 Yes Yes Yes DK Yes DK Yes Yes Yes Yes Yes DK Yes Yes No Yes Yes Yes Yes Yes Yes Yes 57 No No No DK Yes DK Yes No Yes No No No DK Yes DK Yes No No No Yes Yes No 58 Other Rev Other Com Com Com Rev Com Other Rev Rev Com Com Rev Rev Other Com Com Rev 56 CSP Both Both CSP Both Other CSP CSP Both Both CSP CSP Other Both Both Both CSP CSP Both CSP Both CSP 0 0 0 0 0 0 0 52 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 52 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 52 0 0 0 0 0 0 0 100 0 0 0 100 100 0 0 100 0 0 0 0 0 0 52 0 0 0 0 0 0 0 0 50 0 0 0 0 0 100 0 0 0 0 100 0 0 52 0 0 0 0 0 0 0 0 25 0 0 0 0 0 0 0 0 0 100 0 0 0 52 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 52 0 0 0 0 100 0 0 0 0 100 0 0 0 0 0 0 12 12 0 0 0 0 52 0 100 0 0 0 0 100 0 0 0 100 0 0 100 0 0 12 12 0 0 100 0 52 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 52 0 0 0 100 0 0 0 0 25 0 0 0 0 0 0 0 0 0 0 0 0 0 52 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12 12 0 0 0 0 Other: Ple Other: Ple Other: Ple

97 S t a t e / P r o v Q u e s t i o n 5 9 : S t a t i c s t e e l Q u e s t i o n 5 9 : P n e u m a t i c - t i r e d Q u e s t i o n 5 9 : C o m b i n a t i o n p n e u m a t i c / s t e e l Q u e s t i o n 5 9 : V i b r a t o r y r o l l e r s Q u e s t i o n 5 9 : N o r o l l e r s u s e d Q u e s t i o n 6 0 : D o y o u r e q u i r e a n y s p e c i f i c m a k e s a n d m o d e l s ( p r o p r i e t a r y s p e c i f i c a t i o n s ) f o r t h e m i c r o s u r f a c i n g e q u i p m e n t ? Q u e s t i o n 6 2 i n s p e c t i o n o f c o n s t r u c t i o n : Y o u r a g e n c y Q u e s t i o n 6 2 : P r i v a t e C o n s u l t a n t Q u e s t i o n 6 2 : C o n t r a c t o r Q u e s t i o n 6 2 : O t h e r Q u e s t i o n 6 3 : D o y o u u s e a n i n d e p e n d e n t l a b o r a t o r y t o e v a l u a t e m i c r o s u r f a c i n g m i x d e s i g n ? Q u e s t i o n 6 4 : D o e s y o u r a g e n c y h a v e a n i n c e n t i v e / d i s i n c e n t i v e p a y f a c t o r f o r t h e a g g r e g a t e m e e t i n g t h e t a r g e t s u b m i t t e d o n t h e m i x d e s i g n Q u e s t i o n 6 6 m i x d e s i g n t e s t s : R e s i d u a l A s p h a l t Q u e s t i o n 6 6 : P e n e t r a t i o n Q u e s t i o n 6 6 : S o f t e n i n g P o i n t Q u e s t i o n 6 6 : S a n d e q u i v a l e n t Q u e s t i o n 6 6 : S o u n d n e s s Q u e s t i o n 6 6 : A b r a s i o n r e s i s t a n c e Q u e s t i o n 6 6 : W e t S t r i p p i n g T e s t I S S A 1 1 4 Q u e s t i o n 6 6 : T e s t s f o r t h e p r e s e n c e o f c l a y Q u e s t i o n 6 6 : P e r c e n t S o d i u m S u l f a t e L o s s Q u e s t i o n 6 6 : C o n s i s t e n c y T e s t I S S A T B 1 0 6 Q u e s t i o n 6 6 : M o d i f i e d C o h e s i o n t e s t I S S A T B Q u e s t i o n 6 6 : L o a d e d W h e e l T e s t I S S A T B 1 0 9 Q u e s t i o n 6 6 : W e t - T r a c k A b r a s i o n T e s t I S S A T B 1 0 0 Q u e s t i o n 6 6 : S e t T i m e T e s t Q u e s t i o n 6 6 : M o d i f i e d B r i t i s h W h e e l T r a c k i n g Q u e s t i o n 6 6 : C u r e T i m e T e s t I S S A T B 1 3 9 Q u e s t i o n 6 6 : L a t e r a l D i s p l a c e m e n t T e s t I S S A T B 1 4 7 Q u e s t i o n 6 6 : C l a s s i f i c a t i o n T e s t I S S A T B 1 4 4 Q u e s t i o n 6 6 : M i x T i m e T e s t I S S A T B 1 1 3 Q u e s t i o n 6 6 : M o d i f i e d C u p F l o w T e s t Q u e s t i o n 6 6 : T T I M i x i n g T e s t AL AZ CA DE IA IL IN KS LA MI MN X X X X X X X X X MO NC X X X X X X X ND NH NM No No No No No No No DK No No No No No No DK No No No No No No No No No No Yes Yes No X X X X X X X X X X X X X X X X X X X X X X X X X X X No DK No No No No No No Yes No No No No No No No X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X

98 1 NV No NY OK PA SC SD DK TN TX UT VA WY AB BC MNT NB NS ON QB No DK No No No No No SA AU 5959 X X X X X X 59 59 X X X NZ - Cant NZ - Well No No 59 60 Yes DK No No No No No No No No No 63 X X X X X X X 62 X X X X X X X X 62 62 X X No No No No No No No No No No No No No No No No No No DK No Yes No No No X No X X X X 64 Yes No Yes No No No No No No No No No No No No No X X X X X X 62 X X X X X X X X X X X X X X X X X X X 66 X X X X 66 X X X X X X X X X X X 66 X X 66 X X X X X X 66 X X X X X X 66 X X X X X X X X 66 X X X X X X 66 66 X X X X X X X X X X X X 66 X X X X X X X X X X 66 X X X X X X X X X 66 X X X X X X X X X 66 66 66 X X X X 66 X X X X X X X X X 66 X X X X 66 X X X 66 X X X X X X X X 66 X X X X X X X X 66 X X X X X Yes No No

99 S t a t e / P r o v Q u e s t i o n 6 6 : C o m p a t i b i l i t y o f a g g r e g a t e w i t h b i n d e r Q u e s t i o n 6 7 : D o y o u p e r f o r m a n y f i e l d t e s t s t o m o n i t o r t h e q u a l i t y o f t h e m i x ? Q u e s t i o n 6 9 : D o y o u t a k e f i e l d m a t e r i a l s a m p l e s f o r c o m p l i a n c e t e s t i n g ? Q u e s t i o n 7 0 w h o t a k e s t h e s a m p l e s : A g e n c y Q u e s t i o n 7 0 : G e n e r a l e n g i n e e r i n g C o n s u l t a n t Q u e s t i o n 7 0 : C o n t r a c t o r Q u e s t i o n 7 0 : I n d e p e n d e n t l a b p e r s o n n e l Q u e s t i o n 7 1 w h e r e i s t h e a c c e p t a n c e t e s t c o n d u c t e d ? : T h e p i t / s o u r c e Q u e s t i o n 7 1 : T h e s t o c k p i l e Q u e s t i o n 7 1 : W h i l e t r a n s f e r r i n g i n t o t h e n u r s e u n i t s Q u e s t i o n 7 1 : J u s t b e f o r e i t e n t e r s t h e m i c r o s u r f a c i n g p a v e r m i x i n g c h a m b e r Q u e s t i o n 7 1 : D K Q u e s t i o n 7 2 : D o y o u r e q u i r e c a l i b r a t i o n o f m i x i n g e q u i p m e n t ? Q u e s t i o n 7 4 : D o y o u r e q u i r e c a l i b r a t i o n o f s p r e a d i n g e q u i p m e n t ? Q u e s t i o n 7 7 : B e y o n d c a l i b r a t i o n o f m i x i n g a n d s p r e a d i n g e q u i p m e n t , d o y o u p e r f o r m a n y o t h e r f i e l d t e s t s t o c h e c k m a t e r i a l a p p l i c a t i o n r a t e s ? Q u e s t i o n 7 9 d e f i n e “ s u c c e s s ” : M e e t s e x p e c t e d s e r v i c e l i f e Q u e s t i o n 7 9 : D o e s n o t f a i l s h o r t l y a f t e r Q u e s t i o n 7 9 : A c h i e v e s d e s i r e d f r i c t i o n / s k i d n u m b e r Q u e s t i o n 7 9 : Q u a l i t a t i v e m e a s u r e s — l o o k , e t c . Q u e s t i o n 7 9 : M e e t s p r o j e c t s p e c i f i c a t i o n Q u e s t i o n 8 0 W h a t c o m m o n d i s t r e s s e s : R a v e l i n g Q u e s t i o n 8 0 : B l e e d i n g Q u e s t i o n 8 0 : C o r r u g a t i o n Q u e s t i o n 8 0 : C r a c k R e f l e c t i o n Q u e s t i o n 8 0 : S t r e a k i n g Q u e s t i o n 8 0 : T r a n s v e r s e J o i n t s Q u e s t i o n 8 0 : L o n g i t u d i n a l J o i n t s Q u e s t i o n 8 1 R a t e I m p a c t : D e s i g n M e t h o d Q u e s t i o n 8 1 : B e t t e r B i n d e r Q u e s t i o n 8 1 : B e t t e r A g g r e g a t e s Q u e s t i o n 8 1 : C o n s t r u c t i o n P r o c e d u r e Q u e s t i o n 8 1 : C o n t r a c t o r E x p e r i e n c e Q u e s t i o n 8 1 : Q A / Q C P r o g r a m Q u e s t i o n 8 1 : P r e c o n s t r u c t i o n r o a d p r e p a r a t i o n Q u e s t i o n 8 1 : S e l e c t i n g t h e r i g h t p r o j e c t AL Yes AZ No CA No DE IA No IL No IN No KS No LA Yes No Yes YesMI MN Yes YesMO NC DK ND NH X X X X X NM Yes Yes Yes Yes Yes No No No Yes Yes Yes Yes Yes Yes Yes Yes DK Cert Field Field Field Field Field Cert Field Field Cert Field Cert Cert No No No Field Field Field No Field Cert No No DK DK No No No X Yes No Yes Yes No No Yes X X X X X X X Yes No No Field X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X 3 3 3 3 2 3 2 2 3 1 2 2 2 3 3 3 3 2 5 2 1 1 2 2 1 3 3 2 3 3 2 5 2 1 1 2 2 1 3 3 1 3 3 2 1 2 1 1 2 1 1 2 3 1 3 3 2 1 1 1 1 1 1 1 1 3 2 3 3 2 3 3 2 2 3 2 2 3 3 1 3 3 2 2 2 1 2 3 3 1 2 3 1 3 3 1 1 1 1 1 3 3 1 2 X X X X X X X X X X X X X Lac

100 1 66 NV NY OK PA SC SD TN TX UT VA WY AB BC MNT NB NS ON QB SA X X X AU NZ - We 67 Yes No No Yes Yes DK No Yes Yes Yes No No No Yes No No No Yes Yes Yes No No 69 Yes Yes No Yes Yes 71 X X DK Yes Yes Yes Yes No Yes Yes Yes No No Yes No Yes 70 70 X X X X X X X X 70 70 X X X X X Yes Yes Yes 72 Field Cert No Field Field DK Field Field Cert Cert Field Field Field Field Cert No No Field No Field Cert Cert 74 Field No Field Field Field Field DK Field No Cert Field No Field Field No No No No Cert Cert 77 No No No No No No DK No Yes Yes No No Yes No No No 79 X X X 79 X X X X X Yes Yes No No X X X 71 71 X 71 X X X X X X X X X X X X X X 79 X X X X X X X X X X X X X X X X X 80 X X X X X X 79 X X X X X X X X X X 79 X X X X 80 X X 80 X X X X X X X X X 80 X 80 X X 3 1 3 2 3 X X X X X 81 2 3 2 3 2 3 3 2 3 3 3 2 1 2 2 3 2 3 2 2 81 2 3 3 3 2 3 3 2 2 3 3 1 2 2 2 3 1 3 2 2 81 2 3 3 3 2 3 3 2 2 3 3 1 2 3 3 3 2 1 1 3 81 2 1 2 3 2 3 3 1 1 3 3 1 1 2 2 3 2 2 1 2 81 1 1 1 2 1 1 2 2 1 3 2 1 1 2 2 3 2 3 2 2 81 2 3 2 3 3 3 3 3 2 3 3 2 2 2 2 3 2 2 1 1 81 2 2 2 2 2 3 2 4 2 3 2 2 2 2 2 3 1 1 1 2 81 1 1 1 1 1 1 2 2 1 3 1 1 2 1 1 80 X X X X X X X X 80 X X X X X X X 71 X X X X NZ - Ca

101 St at e/ Pr ov Qu es tio n 82 : W ha t is th e m os t c om m on p ub lic - u se r co m pl ai nt a bo ut m icr os ur fa cin g? (c he ck on e) Qu es tio n 8 3: Ho w wo uld yo u g en er all y d es cri be th e p av em en t rid e on ro ad s af te r t he y re ce ive a n ew m icr os ur fa ce Qu es tio n 84 m icr os ur fa cin g fa ilu re s: W ea th er Qu es tio n 84 : I m pr op er a pp lic at ion ra te Qu es tio n 84 : D irt y o r d us ty ag gr eg at e Qu es tio n 84 : A gg re ga te g ra da tio n Qu es tio n 84 : I m pr op er a m bie nt a nd /o r pa ve m en t t em pe ra tu re Qu es tio n 84 : I m pr op er b ind er vi sc os ity Qu es tio n 84 : I m pr op er b ind er te m pe ra tu re Qu es tio n 84 : N ot a pp lic ab le Qu es tio n 85 fa cto rs cr itic al to re qu ire d se rv ice lif e Qu es tio n 85 : U nd er lyi ng p av em en t s tru ctu re Qu es tio n 85 : M ain te na nc e fu nd ing Qu es tio n 85 : F ric tio n los s Qu es tio n 85 : T ra ffic Qu es tio n 85 : C old cl im at e co ns ide ra tio ns Qu es tio n 86 m et ho ds d o yo u us e to m ain ta in: Qu es tio n 86 : S ur fa ce tr ea tm en ts (se al co at) Qu es tio n 86 : F og se al Qu es tio n 86 : N on e AL AZ CA DE IA IL IN KS LA MI MN MO NC ND NH NM None Noise DK Noise Noise None DK App None App Ride None Good Good Good Fair Fair Good Good Good Good Good Good Good X X X X X X x X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X Excellen Looses 1 NV NY OK PA SC SD TN TX UT VA Good WY AB BC NB NS ON QB SA AU None 81 App Noise Noise App Noise Noise App Noise Other; None None App Noise None App App None None Good 83 84 Good Fair Good Good Good Good Fair Good Good Good Good Excellent Good Good Good Good Good Good Good X 84 x X X X X X X X X X X X 84 X X X X X 84 X X X X 84 X X X X 84 X X X X X X 84 84 X X X X X X X X 85 X X X X X 85 X X X X X X X X X X X X X X 85 X X X X X 85 X X 85 X X X 85 X X X 86 X X X X 86 X X X X X 86 X X X X X X X X X X X X 86 X X X X X X Looses MNT NZ - NZ -

Next: Appendix B - Specification Content Analysis »
Microsurfacing Get This Book
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TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis 411: Microsurfacing explores highway microsurfacing project selection, design, contracting, equipment, construction, and performance measurement processes used by transportation agencies in the United States and Canada.

Microsurfacing is a polymer-modified cold-mix surface treatment that has the potential to address a broad range of problems on today’s highways.

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