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From page 41... ... 41 To showcase agency practices and specifications for including warranties in pavement construction projects, unless noted otherwise, case examples were developed based on the responses received from the agency survey, follow-up questions, and agency-provided documentation submitted as part of the agency survey or in response to the follow-up questions. The five case examples represent four state DOTs and one Canadian provincial government, and showcase both new and reconstructed asphalt and concrete pavements, asphalt pavement rehabilitation, and asphalt and composite pavement preservation. Read the entire page →
From page 42... ... 42 Performance-Based Pavement Warranty Practices includes the design of all elements, such as geotechnical, environmental, surveys, permits, and field investigations. During the operation period, the contractor is also required to maintain roadway and bridge elements to a standard of safety, ensure no load restrictions during spring thaw conditions or any other times, and display contractor contact information on signs located along the project limits (Alberta Transportation 2016) Read the entire page →
From page 43... ... Case Examples 43 Maximum specified values for IRI are summarized in Table 31, and applicable penalties if repairs are not completed within the specified time period are summarized in Table 32. Rut depths for new construction shall not exceed 0.55 in. Read the entire page →
From page 44... ... 44 Performance-Based Pavement Warranty Practices • For existing asphalt pavements, rout and seal all transverse cracks 0.08 to 1.0 in. Read the entire page →
From page 45... ... Case Examples 45 the determination of structural capacity is based on a mutually agreed upon independent consultant (retained and compensated by the department) Read the entire page →
From page 46... ... 46 Performance-Based Pavement Warranty Practices Warranty Process The department's generalized warranty process is illustrated in Figure 11 and includes (FDOT 2018) Read the entire page →
From page 47... ... Case Examples 47 4. If pavement deficiencies are found, the DWC coordinates with the contractor and district personnel for completion of any needed remedial work. Read the entire page →
From page 48... ... 48 Performance-Based Pavement Warranty Practices The CIM automatically notifies the DWC when a pavement condition assessment is required (at a minimum, annually) Read the entire page →
From page 49... ... Case Examples 49 shown in Tables 36 through 38 for Category 1 (design speed ≥ 55 mph [89 kph] Read the entire page →
From page 50... ... 50 Performance-Based Pavement Warranty Practices Case Example 3: MDOT -- New Asphalt and Concrete Pavement, and Asphalt Pavement Preservation and Rehabilitation Introduction In 1997, Public Act 79 was placed into law requiring "amounts appropriated for state trunk line projects . Read the entire page →
From page 51... ... Case Examples 51 process. Specifically, the responsibilities of the statewide warranty administration engineer, which include (MDOT 2017) Read the entire page →
From page 52... ... 52 Performance-Based Pavement Warranty Practices items, and entry of the acceptance date into the SWAD. Once the warranty period is initiated, the department conducts and documents periodic inspections. Read the entire page →
From page 53... ... Case Examples 53 Treatment Type Existing Conditions Crack seal (flexible pavement) • First crack treatment? Read the entire page →
From page 54... ... 54 Performance-Based Pavement Warranty Practices Upon contract award, the contractor is required to provide a warranty bond for each pavement treatment as summarized in Table 44. Pavement Inspection During the warranty period, the department may conduct two types of project-level inspections: (1) Read the entire page →
From page 55... ... Case Examples 55 warranty inspection. The results of the detailed warranty inspection either indicates the warranty work is required, verifying the cursory inspection, or determines that no work is needed, and final acceptance is recommended. Read the entire page →
From page 56... ... 56 Performance-Based Pavement Warranty Practices action. If the corrective action can't be agreed upon, a CRT is formed. Read the entire page →
From page 57... ... Case Examples 57 Figure 15. Example cursory inspection form (MDOT 2016) Read the entire page →
From page 58... ... 58 Performance-Based Pavement Warranty Practices Figure 16. Example detailed inspection form (MDOT 2016) Read the entire page →
From page 59... ... Case Examples 59 distress, and concrete patching. To date, eight projects have been referred to the CRT. Read the entire page →
From page 60... ... Treatment Warranty Term Warranty Bond Condition Threshold Limits(a) Maximum Defects(b) Read the entire page →
From page 61... ... New HMA 5 years $1,000k or 5% total contract amount, whichever is less Transverse cracking 3 1 Cut and seal Longitudinal cracking 10% length 1 Cut and seal Debonding 5% length 1 Mill and resurface affected courses Raveling 8% length 1 Mill and resurface affected courses Flushing 4% length 1 Mill and resurface top course Alligator cracking 0 0 Remove and replace Block cracking 0 0 Remove and replace Rutting 0.375 in. Read the entire page →
From page 62... ... Treatment Warranty Term Warranty Bond Condition Threshold Limits(a) Allowable Defects Recommended Corrective Action HMA crack treatment (CPM) Read the entire page →
From page 63... ... HMA overlay (CPM) 3 years 100% cost warrantied work Longitudinal cracking(e) Read the entire page →
From page 64... ... 64 Performance-Based Pavement Warranty Practices Case Example 4: PennDOT -- New Asphalt Pavements Introduction The PennDOT (department) specifications include an asphalt pavement performance warranty with a 5-year warranty period. Read the entire page →
From page 65... ... Case Examples 65 department. The departments' construction inspection responsibilities are limited to documenting contractor operations, weather conditions, calculating placement quantities, and ensuring conformance to end-result criteria (PennDOT 2019) Read the entire page →
From page 66... ... 66 Performance-Based Pavement Warranty Practices The team members are identified at the preconstruction meeting and are knowledgeable regarding the warranty specification, pavement evaluation, and analysis methods. Specifications The warranty specifications, in addition to performance criteria, include clauses for remediating failures from base condition and increased traffic levels. Read the entire page →
From page 67... ... Case Examples 67 Distress Type Threshold Level Remedial Action Cracking (transverse and miscellaneous) All low to medium severity(a) Read the entire page →
From page 68... ... 68 Performance-Based Pavement Warranty Practices questions, the division indicated there were initial issues in securing the bond for a 9-year warranty; however, this was resolved by stacking three consecutive 3-year bonds. The division also indicated their total annual paving budget is approximately $35 million, and the typical warranty project cost is around $3 million per centerline mile. Read the entire page →
From page 69... ... Case Examples 69 Warranty Process A generalized warranty process is shown in Figure 22. The warranty process for the division begins with a mandatory meeting for all potential bidders to discuss the proposed pavement system and/or method of addressing the long-term (9-year warranty period) Read the entire page →
From page 70... ... 70 Performance-Based Pavement Warranty Practices The division warranty specifications make allowances for asphalt and cement material adjustments for the contractor-submitted mix designs. The division's standard specifications and special provisions apply, except as follows (WVDOH 2017) Read the entire page →
From page 71... ... Case Examples 71 in accordance with the pavement surface rating (PSR) , scale 100 (perfect) Read the entire page →
From page 72... ... 72 Performance-Based Pavement Warranty Practices Specifications The division pavement warranty process includes special provisions for determining the pavement systems, evaluating pavement performance during the warranty period, and requiring lane rental for work during the warranty period. As noted previously, the contractor proposes the pavement system, meeting the divisionspecified requirements. Read the entire page →
From page 73... ... Case Examples 73 Summary A total of five case examples were discussed, presenting warranty requirements for new and reconstructed asphalt and concrete pavements, and asphalt pavement rehabilitation and preservation treatments. The case examples summarized agency warranty practices for the Alberta Transportation, FDOT, MDOT, PennDOT, and WVDOH. Read the entire page →
From page 74... ... 74 Performance-Based Pavement Warranty Practices Condition Alberta Florida Michigan Pennsylvania West Virginia Asphalt Pavements Alligator (fatigue) cracking Bleeding/flushing Block cracking Cracking Delamination/debonding Edge cracking/deterioration Friction Longitudinal cracking Longitudinal joint deterioration Miscellaneous cracking Patching Pitting Potholes Raveling/weathering Ride quality/smoothness Rutting Scaling Segregation Settlement/depression Slippage cracking Structural-related distress Transverse cracking Concrete Pavements Blowups Corner break Cracking D-cracking Friction Joint sealant failure Longitudinal cracking Loss of cover aggregate Map cracking Patching Pitting/popouts Ride quality/smoothness Scaling Scaling Shattered slab Spalling Structural-related distress Transverse cracking Note: used and ― not used. Read the entire page →

From page 41...

... 41 To showcase agency practices and specifications for including warranties in pavement construction projects, unless noted otherwise, case examples were developed based on the responses received from the agency survey, follow-up questions, and agency-provided documentation submitted as part of the agency survey or in response to the follow-up questions. The five case examples represent four state DOTs and one Canadian provincial government, and showcase both new and reconstructed asphalt and concrete pavements, asphalt pavement rehabilitation, and asphalt and composite pavement preservation.