TRB's National Cooperative Highway Research Program (NCHRP) Report 691: Mix Design Practices for Warm-Mix Asphalt explores a mix design method tailored to the unique material properties of warm mix asphalt technologies. Warm mix asphalt (WMA) refers to asphalt concrete mixtures that are produced at temperatures approximately 50AdF (28AdC) or more cooler than typically used in the production of hot mix asphalt (HMA). The goal of WMA is to produce mixtures with similar strength, durability, and performance characteristics as HMA using substantially reduced production temperatures. There are important environmental and health benefits associated with reduced production temperatures including lower greenhouse gas emissions, lower fuel consumption, and reduced exposure of workers to asphalt fumes. Lower production temperatures can also potentially improve pavement performance by reducing binder aging, providing added time for mixture compaction, and allowing improved compaction during cold weather paving. Appendices to NCHRP Report 691 include the following. Appendices A, B, and D are included in the printed and PDF version of the report. Appendices C and E are available only online.Warm mix asphalt (WMA) refers to asphalt concrete mixtures that are produced at temperatures approximately 50AdF (28AdC) or more ... This recommended appendix was developed and validated with the results of an extensive program of laboratory and field testing on a ... mix design for inclusion in the mix design manual produced in NCHRP Project 09-33, aA Mix Design Manual for Hot Mix Asphalt, a andanbsp;...
|Title||:||Mix Design Practices for Warm Mix Asphalt|
|Author||:||Ramon Francis Bonaquist, Advanced Asphalt Technologies, LLC.|
|Publisher||:||Transportation Research Board - 2011|