SYNTHESIS AND MECHANICAL PROPERTIES AND MICROSTRUCTURE OF GEOPOLYMER CEMENT WITH HIGH SILICA MATERIAL

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ASADI MOHAMMAD; NAGHIZADEH RAHIM; NEMATI ALI; Asadi Bahman

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Journal Paper

Paper Information

Journal: Journal of Advanced Processes in Materials Engineering Year:2013 | Volume:7 | Issue:3 (26) Page(s): 1-9

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Information Journal Paper

Title

SYNTHESIS AND MECHANICAL PROPERTIES AND MICROSTRUCTURE OF GEOPOLYMER CEMENT WITH HIGH SILICA MATERIAL

Author(s)

ASADI MOHAMMAD | NAGHIZADEH RAHIM | NEMATI ALI | Asadi Bahman | Issue Writer Certificate

Keywords

GEOPOLYMER CEMENTQ3

METAKAOLINITEQ2

COMPRESSIVE STRENGTHQ2

X-RAY POWDER DIFFRACTIONQ3

INFRARED SPECTROSCOPYQ3

Abstract

Initially mine raw material unwashed kaolin Zenouz (ZK1) was calcined for 5 hours at 800oC to obtain Meta kaolin. After that by using Meta kaolin, sodium silicate activation solution and sodium hydroxide geopolymer samples were prepared with ratios of 0.9 Na2O/SiO2=0.6 and molar ratio Na2O/Al2O3=1. Curing time and temperature of 3, 7 and 28 days and 25, 50 and 75oC was selected respectively. COMPRESSIVE STRENGTH was taken from prepared samples that the results showed high COMPRESSIVE STRENGTH of some geopolymeric samples compared with Portland cement paste samples. For further study analysis strength, FTIR and SEM samples was used. FTIR results indicate that the formation of the geopolymer structure than Meta kaolin changes that result from their condensation polymerization of the monomers. SEM results showed that geopolymeric paste is composed of two parts, gel and Quartz remaining particles. Also was seen with increasing curing time remaining particle size reduced.

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