ASTM RR:D04-1012 PDF Download

The ASTM RR:D04-1012 standard aims to determine the resistance to plastic deformation of bituminous mixtures. This standard utilizes the Marshall apparatus, a testing device designed to measure the stability and flow properties of asphalt mixtures.

The test involves preparing cylindrical specimens with a diameter of 6 inches and subjecting them to a series of load applications at a specific temperature. The Marshall apparatus applies a compressive load to the specimen, causing it to deform. The resistance to plastic flow is then determined by measuring the deformation of the specimen under the applied load.

The standard includes detailed procedures for preparing the test specimens, conditioning them at the desired temperature, and conducting the test using the Marshall apparatus. It also provides guidelines for calculating the stability and flow values based on the measurements obtained.

The ASTM RR:D04-1012 standard is important in the field of bituminous mixture testing as it allows for the evaluation of the deformation properties of these materials. By determining the resistance to plastic flow, engineers and researchers can assess the performance of bituminous mixtures in terms of their ability to withstand deformations caused by traffic loads and temperature changes. This information is crucial in designing and constructing durable and long-lasting asphalt pavement systems.