Effect of Alkali on the Geopolymer Strength

Abstract:

Article Preview

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.

Info:

Periodical:

Advanced Materials Research (Volumes 168-170)

Edited by:

Lijuan Li

Pages:

1827-1832

DOI:

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

Citation:

T. S. Qiu et al., "Effect of Alkali on the Geopolymer Strength", Advanced Materials Research, Vols. 168-170, pp. 1827-1832, 2011

Online since:

December 2010

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.