Geopolymer Concrete Paver Blocks: A Review

Abstract. Geopolymer Concrete is one of the emerging concretes with zero cement. Zero percent usage and hundred percentage utilization of pozzolanic material as source material increases the interest of researchers towards geopolymer concrete day by day. Also, reduction of emission of Co2 rate in environment by the less usage of cement consumption increase the thirst of utilizing geopolymer concrete towards academicians, environmentalists and researches. In geopolymer concrete the main source material which is highly embedded with huge percentage of silica and alumina is utilized instead cement. Stimulator solution, combined with Na2Si03 and NaOH is used for processing and activating polymerization process. As a result of polymerization process, chain links and bonds of Silicon-Oxygen-Aluminum are formed to stimulate the strength properties of concrete. Steam, oven and ambient temperature curing methods are preferred in this concrete. Nowadays, interest of geopolymer concrete turn over to applications of geopolymer products rather than construction of structural elements. Applications of geopolymer concrete include paver blocks, precast slabs, pipes, bricks, tiles, etc. Construction of paver blocks in geopolymer concrete plays an important role. This paper describes the review of GPC paver blocks for the past two to three decades which will help to update the knowledge of GPC paver blocks in all aspects.