Open AccessProperties of geopolymer bricks made with flyash and GGBS
Author(s) -
B. Lavanya,
Preet D. Kuriya,
S. Suganesh,
R. Indrajith,
Ramesh Babu Chokkalingam
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/872/1/012141
Subject(s) - geopolymer , sodium silicate , compressive strength , materials science , sodium hydroxide , fly ash , ground granulated blast furnace slag , absorption of water , efflorescence , composite material , curing (chemistry) , metallurgy , chemical engineering , engineering
Geopolymer bricks is the new innovation in the field of brick industry. Geopolymer bricks contain flayash as the source material and an alkaline activator for the activation of polymerization reaction. In this study, experimental work has been performed on geopolymer bricks with flyash and GGBS as source material and sodium hydroxide and sodium silicate as an activator. The molarity of sodium hydroxide was maintained at 12M for all the mixtures and the ratio of sodium hydroxide to sodium silicate was kept as 1:2.5. The brick properties such as compressive strength, water absorption, acid resistance and efflorescence test were conducted on the test specimens. Test results indicated that geopolymer concrete with higher GGBS content resulted in higher compressive strength and better properties compared to flyash based geopolymer brick.