Review the Development of Geopolymer Technology to Enhance the Performance of Rigid pavement
الملخص
Abstract: Geopolymer cement is a sustainable material that serves as a viable alternative to ordinary Portland cement (OPC) in the construction of transportation infrastructure and buildings. The chemical activator, curing process, and sources of geopolymer materials are essential factors that significantly impact the strength, durability properties, and microstructure of the resulting geopolymer matrices. In contemporary construction practices, concrete is a widely used material that can be expensive to produce with adverse effects on the environment. In order to decrease the reliance on OPC, a novel form of concrete known as geopolymer concrete (GPC) has been developed. This review aims to present the development of geopolymer technology to enhance the strength and durability of rigid pavement. It is imperative for pavement engineers to comprehend and tackle the challenges associated with geopolymer construction methodologies, encompassing placement, curing, and pavement efficacy. Based on the literature survey, it can be concluded that geopolymer concrete is a viable substitute for OPC concrete (PCC) due to its superior physical, mechanical, and durability characteristics. Various types of GPC demonstrated satisfactory performance in terms of drying shrinkage and thermal expansion compared to PCC. Geopolymer concrete exhibits high resistance against acid, sulfate, and salt attacks. The utilization of geopolymer cement in the construction of rigid pavement has been identified as a potential solution to address concerns related to global warming and enhance the durability of such infrastructure.