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AASHTO PP 84

2019 Edition, 2019

Complete Document

Standard Practice for Developing Performance Engineered Concrete Pavement Mixtures



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Description / Abstract:

This practice covers elements of a concrete pavement mixture that considers, and includes, alternative performance characteristics for acceptance.

In Section 6 of this practice, SHA traditions of using prescriptive methods are respected while also offering options to use one or more performance measures instead.

This practice is intended to provide SHAs flexibility in their approach to the use of alternative performance measures and includes a range of choices that can be selected to best fit the needs of the agency.

Life cycle cost of concrete pavements will be considerably reduced, as a result of extended service life, by reducing material and construction variability. This is achieved by a robust quality control (QC) program.

Performance values included are for an average concrete pavement life in the range of 30 y. Due to normal materials and testing variability and available local contractor expertise, some risk exists in predicting actual service life. As service life prediction models and test methods mature, that risk is expected to be reduced.

Substantial research has shown that a key to reduce the life cycle cost of concrete is by reducing construction variability.

The values stated in SI units are to be regarded as the standard. The values given in parentheses are provided for information only.

When performance-based measures are selected, the importance of quality control increases; compliance with the acceptance criteria are predicated on a well-designed and executed QC program that includes process, production, and construction control.

This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.