AASHTO MP 36-18 (2020) PDF Download

AASHTO MP 36-18 (2020) is a standard specification that outlines the quality requirements for materials used in asphalt tack coat applications. Tack coat is a thin layer of asphalt emulsion or asphalt binder that is applied between pavement layers to enhance their bonding and improve overall pavement performance.

The standard specifies the materials that can be used for tack coats, which include emulsified asphalt and performance-graded asphalt binder. Emulsified asphalt is a mixture of asphalt, water, and an emulsifying agent, while performance-graded asphalt binder refers to asphalt that is classified based on its performance characteristics.

The purpose of AASHTO MP 36-18 (2020) is to ensure that the materials used for tack coats meet the necessary quality standards. This helps to ensure the effectiveness of tack coat applications in promoting adhesion between pavement layers and enhancing the overall durability and performance of the pavement system. Compliance with this standard can help to minimize premature pavement distresses, such as delamination and rutting, and extend the service life of the pavement.