Waste Clay Bricks as a Geopolymer Binder for Pavement Construction

Geopolymer binders that combine aluminosilicate materials (i.e., precursors) with alkali activators are a viable and environmentally friendly alternative to ordinary Portland cement. While fly ash, slag, silica fume, metakaolin the most extensively investigated precursor materials, recent studies demonstrate feasibility of using low amorphous aluminosilicates (LAA) for geopolymer synthesis. Waste clay bricks (WCB) make an excellent LAA material producing binders, considering their chemical mineralogical properties. enhanced mechanical properties can be produced either by blending WCB other or as sole precursor, while providing appropriate production conditions, such high-temperature curing. Until now, in pavement construction, has been only subbase aggregate concrete. Since is potential source material, it also function cementitious (ACM), stabilizing construction. This work reviews on WCB-based geopolymers, focus particularly raw activator types concentrations, curing blended systems, binders. Simultaneously, different design requirements currently available specifications use concrete were correlated evaluate ACM Based current literature, proposed suitable develop pavement-grade more promising results obtained high-calcium sources, slag. Therefore, comprehensive development, durability, field performance recommended.