The National Concrete Pavement Technology Center has published a guide that comments on the requirements for concrete mixtures addressed in AASHTO R 101, Developing Performance Engineered Concrete Pavement Mixtures. This manual presents the context and rationale for several key recommendations provided in the AASHTO R 101 document. The intent is to provide transportation agencies with tools for preparing a concrete pavement mixture specification that moves closer to measuring and basing acceptance on parameters critical to the long-term performance of the pavement system.
Topics covered include Strength, Slab Warping and Cracking, Performance in Freeze-Thaw Environments, Transport Properties (permeability), Aggregate Stability related to D-Cracking and Alkali Reactivity, Workability and Mixture Qualification.
The commentary on AASHTO R 101 can be obtained here.
National Ready Mixed Concrete Association