Open AccessExperimental Study on the Strength of Fly Ash Geopolymer with Alkali Activator Modulus
Author(s) -
Jingyu Cui,
Wuyu Zhang,
Gang-ao Ji,
Guoqing Tong,
Banglong Xie
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/330/3/032083
Subject(s) - geopolymer , fly ash , materials science , modulus , microstructure , alkali metal , composite material , compressive strength , young's modulus , elastic modulus , chemistry , organic chemistry
The variation of strength of fly ash geopolymer under different alkali activator modulus is studied. In this paper, three samples with modulus of alkali initiator 1.0, 2.0, 3.0 were prepared by laboratory test, and the unconfined compressive strength, SEM scanning and XRD analysis were conducted. Results show that the strength of the fly ash geopolymer negative correlation with alkali excitation agent module, with higher modulus alkali excitation agent, the strength of the polymer decreased obviously. From the micro perspective, the lower modulus of the sample of the microstructure appear more dense, gelling material produce more obvious at the same time. From the part of XRD, different modulus of the sample composition are same basically.