Effect of Alkali on the Geopolymer Strength

Ting Sheng Qiu; Jing Zhong Kuang; Fang Shi

doi:10.4028/www.scientific.net/AMR.168-170.1827

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 168-170Effect of Alkali on the Geopolymer Strength

Effect of Alkali on the Geopolymer Strength

Abstract:

In this study, geopolymer was synthesized with metakaolin and tungsten-tailing as the main raw material and alkali activator composed of sodium silicate solution and alkali solution. By the contrast of the experiments with five kinds of alkali activators, the result was obtained. When the concentration of the NaOH or KOH was 10mol/L,the content of NaOH or KOH in the liquid phase was 35%,while the concentration of the Ca(OH)₂ was 3mol/L, the content in the liquid phase was 35%,the property of geopolymer was the best. For the combined alkali, when the content ratio of Ca(OH)₂ to KOH or Ca(OH)₂ to NaOH of 2:3,there was a balance between the activator of alkali and the resistance of Ca₂+.The trigger action of the alkali activator on the activity of slag was accelerated.

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Periodical:

Advanced Materials Research (Volumes 168-170)

Pages:

1827-1832

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.168-170.1827

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Online since:

December 2010

Authors:

Ting Sheng Qiu, Jing Zhong Kuang, Fang Shi

Keywords:

Alkali, Concentration, Content, Geopolymer, Property Analysis

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