AASHTO M 33M/M 33-20 PDF Download

AASHTO M 33M/M 33-20 is a standard specification that provides guidelines for the use of preformed expansion joint fillers made of bituminous materials in concrete construction. The purpose of this standard is to ensure that the expansion joint filler meets the necessary requirements for functionality and performance.

The specification includes various requirements for the physical properties of the filler, such as its thickness, width, and density. It also outlines the test methods that should be used to determine these properties, including tests for flexibility, tensile strength, and water absorption.

In addition to the physical properties, the standard also addresses the installation and maintenance of the bituminous expansion joint filler. It provides guidelines for proper storage, handling, and transportation of the material. It also suggests methods for cutting, fitting, and securing the filler in the joint to ensure proper functionality and durability.