Effect of using colemanite and basalt fiber on the mechanical properties of metakaolin-based geopolymer mortars

Authors : Nawar Ali, Orhan Canpolat, Mukhallad M. Al-mashhadani, Yurdakul Aygörmez, Mucteba Uysal

Pages : 235-241

Doi:10.29187/jscmt.2018.25

View : 19 | Download : 8

Publication Date : 2018-04-20

Article Type : Research

Abstract :In the current studies which focus on the impact of CO2 emissions that released from the cement industry, showed the importance of finding alternative binders other than cement like geopolymer. This paper presented metakaolin based geopolymer which was manufactured by partially replacing metakaolin with colemanite with different percentages (10%, 20%, and 30%), to investigate the effect of colemanite on the mechanical properties of geopolymer. Then a comparison was carried out between non-fibrous specimens and basalt fiber reinforced ones to evaluate the improvement in terms of flexural and compressive strength of metakaolin-based geopolymer. The results showed that replacing metakaolin with 10% colemanite and adding 1% basalt fiber achieved 28.17% improvement in flexural strength at age 7 days compared to the reference sample.
Keywords : Geopolymer, Metakaolin, Colemanite, Basalt Fibers