A Review on Styrene-Butadiene-Styrene Polymer Modified Bitumen

In this technological era, due to high traffic speed, fluctuations in pavement temperature, overloading of vehicles, several problems may occur early in the flexible pavement of bituminous surfaces, like cracking, rutting, bleeding, shoving and potholing. By adding polymers, we can boost the properties of bitumen. In this article, our goal is to understand the thermoplastic elastomer, i.e. SBS (styrene butadiene-styrene). The structure of the SBS can be discussed in this article. SBS has been produced to prevent low temperature cracking, to avoid early weathering, to reduce the temperature vulnerability of bitumen. SBS PMB strengthens conventional properties (penetration, softening point, etc.) and mechanical properties (Marshall, indirect tensile strength) etc. In this article, we analyse numerous experiments carried out by the authors on SBS PMB, such as the elastic recovery test, the Marshall Stability Test and the indirect tensile strength test.