Fly ash-lime-phosphogypsum cementitious binder: A new trend in bricks

Fly ash-lime-phosphogypsum (FaL-G) bricks are one of the best alternatives to the conventional burnt clay bricks. This paper gives the results of an experimental investigation in which the compressive strength, water absorption, density and durability of Fly ash-lime-phosphogypsum (FaL-G) bricks were investigated by using varying quantities of fly ash, lime and calcined phosphogypsum. The properties of Fly ash-lime-phosphogypsum (FaL-G) bricks are compared with those of the ordinary burnt clay bricks. The results indicate that these bricks are lighter in weight, durable in aggressive environments and have sufficient strength for their use in building construction.