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:: Volume 6, Issue 1 (6-2017) ::
2017, 6(1): 85-95 Back to browse issues page
Effect of nano silica on properties of metakaolin-based geopolymers
Abstract:   (829 Views)

In recent years, geopolymers have received considerable attention because of their properties and potential applications in fire resistant materials, thermal insulation, low-tech building materials, cements and concrete, and etc. Nano silica is a material that can modify mechanical, microstructural, and structural properties of geopolymer products. In this study, nano silica was added to metakaolin-based geopolymer samples at the dosages of 0, 2, 4, and 6 % by weight. Then, mechanical properties of samples such as compressive and flexural strength were measured. The results showed that by increasing the percent of nano silica, both compressive and flexural strength increased from 62.4 to 84.1 and from 13.4 MPa to 24.2 MPa respectively. Also, effect of nano silica on microstructural and structural properties of metakaolin-based geopolymers were investigated using XRD, FTIR, and SEM micro graphs. The SEM micro graphs showed that an increase in the percent of nano silica caused an increase in the homogeneity of samples.


Keywords: Metakaolin-based geopolymers, Nano silica, Mechanical properties, Microstructural and structural properties
Full-Text [PDF 2015 kb]   (442 Downloads)    
Type of Study: Research | Subject: Special
Received: 2017/11/12 | Accepted: 2017/11/12 | Published: 2017/11/12
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Effect of nano silica on properties of metakaolin-based geopolymers. Iranian Journal of Ceramic Science & Engineering. 2017; 6 (1) :85-95
URL: http://ijcse.ir/article-1-495-en.html

Volume 6, Issue 1 (6-2017) Back to browse issues page
نشریه علم و مهندسی سرامیک Iranian Journal of Ceramic Science & Engineering
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