Performance-Related Specifications for Pavement Preservation Treatments (2017) / Chapter Skim
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Pages 47-59
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47 The objective of this research was to develop comprehensive PRS guidelines and present examples to illustrate their application for select preservation treatments. This chapter describes the process for selecting these treatments and presents PRS guidelines for each of the treatments.
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48 performance-related Specifications for pavement preservation treatments type and rate of deterioration in the existing pavement. Therefore, selection, timing, and location of a preservation treatment are the key components for its success (Peshkin and Hoerner 2005, Peshkin et al.
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Guidelines for Implementing prS 49 30.62ln 54.912 (Eq.
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50 performance-related Specifications for pavement preservation treatments 7. Select and evaluate quality measurement methods Using a quality measure, such as PWL, evaluate the PWL of each lot based on the specified AQC limits.
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Guidelines for Implementing prS 51 where R is defined as follows: 100 1 1 Relative damage (Eq.
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52 performance-related Specifications for pavement preservation treatments setting specification limits. Although there are typical ranges, e.g., 90 to 95 AQL and 60 RQL, these can vary based on the corresponding pay adjustments, SLE, and risk analysis.
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Guidelines for Implementing prS 53 Chip Seal 1. Selection of a preservation treatment Chip seals are typically used as preservation treatments for flexible pavements.
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54 performance-related Specifications for pavement preservation treatments less risk to the parties involved, but may accrue higher project and user costs. Therefore, the plan should be tailored to the type of parameter being tested, the resources available to the agency, and the goal of the project delivery approach unique to each project.
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Guidelines for Implementing prS 55 A lower AQC (%Leff-total in this case) limit needs to be established for before-and-after treatment PWL calculations.
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56 performance-related Specifications for pavement preservation treatments • Develop an operating characteristic (OC) curve that provides the probability of awarding a pay factor greater than 1 at AQL close to 50%.
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Guidelines for Implementing prS 57 • Identify the party performing acceptance testing. • Select an acceptance sampling plan type.
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58 performance-related Specifications for pavement preservation treatments 3. Establish AQC-performance relationships and set specification limits The faulting model developed for the Pavement-ME can be used to establish a relationship between changes in LTE due to DBR and predicted faulting performance.
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Guidelines for Implementing prS 59 a lot can be used for estimating PWL. Typically, joint spacing of 15 ft is used for JPCP, which means there will be about 36 joints in a 0.1-mile pavement segment.
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