The Study of the Properties of the Cement Polymer-Stabilized Road Materials

Abstract

Increased traffic nowadays results in increased loads of the pavements therefore the service life is shortened. Moreover, some roads can be flooded, causing moisture and is the one of the reasons that caused the pavements collapsed. Therefore, the properties of aggregates improved with cement polymer were studied in this project. This work improved the quality of two types of cement polymer including styrene-acrylic (SA) and styrene-butadiene rubber (SBR) by using the aggregates consisting of crushed rock and Reclaimed Asphalt Pavement. The compressive strength tests were then performed, including
the Unconfined Compressive Strength Test (UCS) and Indirect Tensile Strength Test (IDT). Moisture resistance tests were also performed, Capillary Rise Test and Durability Test by wet and dry method. The results showed that the compressive strength of both types of cement polymer modified materials differed, with the crushed rock having higher compressive strength than the Reclaimed Asphalt Pavement. In contrast to the indirect tensile strength test results of the two types of cement polymer modified materials, the Reclaimed Asphalt Pavement was higher than the crushed rock. In addition, the results of Capillary Rise Test and the Durability Test of both materials revealed that the improvement of the aggregate with the Styrene Butadiene Polymer (SBR) has a good effect on moisture resistance.