AASHTO HM-31-M

The 31st Edition of the Standard Specifications for Transportation Materials and Methods of Sampling and Testing (Materials Book), with 75 revised and 3 new specs and test methods. The 31st Edition of the Materials Book contains 363 materials specifications and test methods commonly used in the construction of highway facilities. The specifications have been developed and maintained by transportation departments through participation in AASHTO?s Subcommittee on Materials. The book edition is organized in two volumes, Materials and Testing, and each volume has been separated into two books.