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From page 133... ... 133 A P P E N D I X B State Transportation Agency Survey Responses The responses to the state highway agency survey questionnaire are presented in this appendix. Current Status of Laboratory Asphalt Performance Testing Question 1: Does your agency prepare and conduct asphalt laboratory performance testing (irrespective of whether testing is conducted on a routine or supplemental basis; i.e., not part of routine usage/specification/mix acceptance) Read the entire page →
From page 134... ... 134 Practices for Fabricating Asphalt Specimens for Performance Testing in Laboratories Question 2: "Please select the types of laboratory asphalt performance testing conducted by your agency (inhouse and/or by other entities on behalf of your agency) ." Test Agencies APA AK, AL, FL, GA, IA, ND, NJ, SC, SD Cantabro FL, MA, MS, NJ, OK, SC, TN, TX CTIndex GA, ME, MO, OH, OK, TN, TX, UT DCT CO, IA, MN, ND, SD DTCF MO E* Read the entire page →
From page 135... ... Question 3: "How does your Agency use the results of the laboratory performance test (select all that apply) Read the entire page →
From page 136... ... (b) In Quality Assurance (QA) Read the entire page →
From page 137... ... (c) Routine usage for research purposes (such as specification update) Read the entire page →
From page 138... ... (d) Nonroutine usage for research or other purposes Test AK AL AR AZ CA CO DC FL GA IA IL IN KS MA ME MN MO MS MT ND NH NJ NM NV OH OK SC SD TN TX UT VA VT APA X X X X Cantabro X X CTIndex X X X X X X X X X X DCT X X DTCF X X E* Read the entire page →
From page 139... ... State Transportation Agency Survey Responses 139 Question 4: "At your agency, is the fabrication of test specimens for performance testing conducted using standardized AASHTO or ASTM specifications and/or agency-specific protocols (provide one response for each test) Read the entire page →
From page 140... ... 140 Practices for Fabricating Asphalt Specimens for Performance Testing in Laboratories Other Test 1 https://www.nevadadot.com/doing-business/about-ndot/ndot-divisions/operations/materialssection/materials-test-manual https://extranet.ddot.dc.gov/QAQC.Web/LoginNew.aspxReturnUrl=%2fQAQC.Web%2fMat erialTests%2fManageLogs.aspx%3fCat%3d10&Cat=10 http://www.virginiadot.org/business/resources/Materials/bu-mat-VTMs.pdf, VTM-128 http://infonet.dot.state.fl.us/materials/administration/resources/library/publications/fstm/Methods/ fm5-599.pdf http://www.arkansashighways.com/materials_division/A -- FIELDMAN.pdf Other Test 2 http://infonet.dot.state.fl.us/materials/administration/resources/library/publications/fstm/Methods/ fm1-t283.pdf Question 6: "Is asphalt laboratory performance testing conducted at your agency and/or by consultant/university labs on behalf of the agency? " Response Number of Agencies Conducted only in-house by agency 18 Conducted only through consultant/university labs 1 Conducted both in-house and through consultant/university labs 14 Question 7: "An important component of this synthesis study is to document specimen fabrication practices of non-agency entities (such as consultant or university labs) Read the entire page →
From page 141... ... State Transportation Agency Survey Responses 141 Question 9: "What are the dimensions of the final test specimen for the laboratory performance tests used by your agency? (Typical values are shown; please edit as necessary and fill all that apply.) Read the entire page →
From page 142... ... Question 10: "What type(s) of materials are evaluated using laboratory performance test(s) Read the entire page →
From page 143... ... (b) Plant mixed and field compacted, or field cores Test AK AL AR AZ CA CO DC FL GA IA IL IN KS MA ME MN MO MS MT ND NH NJ NM NV OH OK SC SD TN TX UT VA VT APA X X X X Cantabro CTIndex X X DCT DTCF X X X E* Read the entire page →
From page 144... ... (c) Reheated plant mixed laboratory compacted or plant mixed laboratory compacted at the plant Test AK AL AR AZ CA CO DC FL GA IA IL IN KS MA ME MN MO MS MT ND NH NJ NM NV OH OK SC SD TN TX UT VA VT APA X X X X Cantabro X X X CTIndex X X DCT X X DTCF X X X X X X X E* Read the entire page →
From page 145... ... State Transportation Agency Survey Responses 145 Question 11: "Please identify laboratory performance test(s) for which there is a laboratory conditioning requirement (for example, short and/or long-term oven aging) Read the entire page →
From page 146... ... Question 12: "Please provide information regarding the laboratory conditioning (for example, short and/or long-term oven aging) during specimen fabrication for laboratory performance testing (check all that apply) Read the entire page →
From page 147... ... State Transportation Agency Survey Responses 147 "Other" responses and brief description Asphalt Pavement Analyzer (APA) Short-term aging only (2 hours at compaction temperature) Read the entire page →
From page 148... ... 148 Practices for Fabricating Asphalt Specimens for Performance Testing in Laboratories Question 13: "Please provide details (such as temperature and time) for the loose mixture laboratory conditioning during specimen fabrication process (fill in all information that is applicable) Read the entire page →
From page 149... ... State Transportation Agency Survey Responses 149 Descriptions of "other process followed" for loose mix conditioning: Asphalt Pavement Analyzer (APA) Temp = midpoint of mix compaction temperature range; for 120 +/-5 mins; short-termaging only (2 hours at compaction temperature) Read the entire page →
From page 150... ... Question 14: "Is laboratory conditioning of compacted specimens conducted on bulk (prior to cutting and coring) specimens or on finished test specimens (after cutting and coring) Read the entire page →
From page 151... ... State Transportation Agency Survey Responses 151 Question 15: "Please provide details (such as temperature and time) for the compacted specimen conditioning during fabrication process (fill in all information that is applicable) Read the entire page →
From page 152... ... 152 Practices for Fabricating Asphalt Specimens for Performance Testing in Laboratories Compacted specimen aging temperature and aging time reported for non-AASHTO R30 protocol: Test Temperature (degrees Celsius) Time (hours) Read the entire page →
From page 153... ... Question 16: "Is there a target air void level requirement for laboratory performance test specimens used by your agency? (Select one for each test.) Read the entire page →
From page 154... ... 154 Practices for Fabricating Asphalt Specimens for Performance Testing in Laboratories Question 17: "Please provide information regarding the target air void level requirement during fabrication of laboratory performance test specimens used by your agency or on behalf of your agency. (If requirements are in the AASHTO/ASTM specification, please select in first column and leave rest blank. Read the entire page →
From page 155... ... State Transportation Agency Survey Responses 155 Target air void level requirements not detailed in test specification or deviated from test specification: Requirements Not Detailed in Test Specification or Deviated from Test Specification: Target Air Void Required on Bulk Compacted Sample Prior to Test Specimen Fabrication (e.g., prior to cutting or coring) Requirements Not Detailed in Test Specification or Deviated from Test Specification: Target Air Void Required on Finalized Test Specimen (e.g., after all necessary cutting or coring) Read the entire page →
From page 156... ... 156 Practices for Fabricating Asphalt Specimens for Performance Testing in Laboratories Question 18: "Identify equipment that is used in your laboratory to fabricate test specimens for laboratory performance tests (check all that apply) Read the entire page →
From page 157... ... State Transportation Agency Survey Responses 157 "Other" responses and brief descriptions: Test Other(s) (briefly describe) Read the entire page →
From page 158... ... 158 Practices for Fabricating Asphalt Specimens for Performance Testing in Laboratories Operational Constraints and Rejection Rates of Test Specimens Question 19: "What is the allowable maximum storage time before, during, and after specimen fabrication for the performance tests that are instituted in your agency? Please use comments column to provide any additional relevant information (fill all that apply, leave blank if no requirements are in place) Read the entire page →
From page 159... ... State Transportation Agency Survey Responses 159 Question 20: "How are performance test specimens prepared for storage at your agency? (Select all that apply.) Read the entire page →
From page 160... ... 160 Practices for Fabricating Asphalt Specimens for Performance Testing in Laboratories Question 21: "Please indicate the most frequent causes of operational disruptions that you have encountered during the test specimen fabrication process (check all that apply) Read the entire page →
From page 161... ... State Transportation Agency Survey Responses 161 "Other" responses: Issues with the testing equipment Machine issues NA The machine itself has been the major issue for any delays we see. These situations only occur very infrequently. Read the entire page →
From page 162... ... 162 Practices for Fabricating Asphalt Specimens for Performance Testing in Laboratories Question 23: "Is your agency satisfied with your performance test specimen rejection rate? (Select one and fill in the blank.) Read the entire page →
From page 163... ... State Transportation Agency Survey Responses 163 Identification of Other Contacts and Suggestions for Future Research Question 24: "Is your Agency currently sponsoring (or planning to sponsor) any research related to asphalt performance testing that specifically addresses the fabrication of laboratory specimens in-house in the future? Read the entire page →
From page 164... ... 164 Practices for Fabricating Asphalt Specimens for Performance Testing in Laboratories Question 25: "Have you observed any gaps in knowledge that have made it challenging for your Agency to start (or continue) successfully fabricating performance test specimens in-house? Read the entire page →
From page 165... ... State Transportation Agency Survey Responses 165 Question 26: "The synthesis will also include case examples illustrating agency practices on asphalt performance test specimen fabrication. The development of the case example(s) Read the entire page →

From page 133...

... 133 A P P E N D I X B State Transportation Agency Survey Responses The responses to the state highway agency survey questionnaire are presented in this appendix. Current Status of Laboratory Asphalt Performance Testing Question 1: Does your agency prepare and conduct asphalt laboratory performance testing (irrespective of whether testing is conducted on a routine or supplemental basis; i.e., not part of routine usage/specification/mix acceptance)