AASHTO MP 44-20 PDF Download

AASHTO MP 44-20 is a standard specification that outlines the materials required for the construction of an ultrathin bonded wearing course. This specification covers various components such as polymer-modified emulsified asphalt, performance-graded asphalt binder, mineral aggregate, mineral filler, and additives. These materials are essential for the proper formulation and construction of the ultrathin bonded wearing course, which is typically between 1/2 to 1 inch thick.

The ultrathin bonded wearing course is specifically designed to be placed on existing pavement surfaces using specialized paving machines. It provides an additional layer of protection and increases the service life of the pavement. This standard ensures that the materials used in the construction of the ultrathin bonded wearing course meet the required specifications for performance and durability, ensuring the longevity and effectiveness of the pavement structure.

By specifying the necessary materials and their properties, AASHTO MP 44-20 provides guidance on the proper selection and use of materials to achieve the desired performance characteristics of the ultrathin bonded wearing course. Compliance with this standard ensures the quality and consistency of the materials used in the construction process, ultimately leading to a safe and reliable pavement structure.