Study on the Behavior of Geopolymer Bricks Under Different Curing Temperatures and Alkaline Solution Concentrations

摘要

Conventional clay bricks are produced from the agricultural soil, where they contain limited advantages in the field of construction. Geopolymer bricks (GPB) might be an improved alternative to the conventional clay bricks which could produce innumerable environmental problems. These geopolymer bricks are characterized by various parameters such as type of binding materials, type of curing, curing temperature and concentration of alkaline solution, etc., Fly ash (FA) is the base material used in the making of GPB which are rich in silica content and reacts with the alkaline solution and results in better strength properties than the conventional clay bricks. In this study, the various parameters considered for investigation were type of fly ash (class C and F), alkaline solution (NaOH & Na_2SiO_3) concentration (4M, 6M, 8M, 10M, 12M) and curing temperature in oven (Room temperature, 60°C, 90°C). It was observed that the class F Fly ash with 10M alkaline solution under 60°C hot air oven curing produces better results.