Impact Strength of Lightweight Geopolymer Concrete Reinforced with Geogrid Textile

Abstract Porous concretes like lightweight and aerated concretes are generally utilized in buildings domains. Lightweight construction materials are utilized to minimize either the weighing or the cost of construction. Aluminium (Al) powder was used to produce blebs in pored constructions for porous geopolymer manufacture. In this research, 40x40x4 cm geopolymer concrete slabs reinforced with one and two layers of carbon textile grid with dimensions of (10x10, 15x15, 20x20, 25x25, and 40x40) cm in addition to plain gopolymer lightweight concrete and investigated Impact strength, first cracks observation, and first and final energy absorbed at age of 28 days. From the above tests, it can be concluded that using of two layers of carbon textile grid with dimensions of 40x40 cm have superior performance since its 1 st crack appears after 30 blows and final failure occurs after 37 blows compared to 3 and 4 blows for normal lightweight geopolymer concretes while, the energy absorbed by lightweight geopolymer concretes reinforced with two plys of carbon textile grid at 1 st crack and final failure were more than 610, and 753 Joule compared to 61, and 81 Joule for normal lightweight geopolymer concretes.