Journal of
Engineering and Technology Research

  • Abbreviation: J. Eng. Technol. Res.
  • Language: English
  • ISSN: 2006-9790
  • DOI: 10.5897/JETR
  • Start Year: 2009
  • Published Articles: 184

Full Length Research Paper

Microstructure of different NaOH molarity of fly ash-based green polymeric cement

A. M Mustafa Al Bakri1*, H. Kamarudin1, M. Bnhussain3, I. Khairul Nizar3, A. R Rafiza1 and Y. Zarina1
  1Green [email protected], School of Material Engineering, Universiti Malaysia Perlis (UniMAP), P. O. Box 77, d/a Pejabat, Pos Besar, 01007 Kangar, Perlis Malaysia. 2School of Environment Engineering ,Universiti Malaysia Perlis (UniMAP), P. O Box 77, d/a Pejabat, Pos Besar, 01007 Kangar, Perlis Malaysia. 3King Abdul Aziz City Science and Technology (KACST), P.O. Box 6086, Riyadh 11442, Kingdom of Saudi Arabia.
Email: [email protected]

  • Article Number - 630112410718
  • Vol.3(2), pp. 44-49, February 2011
  •  Accepted: 03 February 2011
  •  Published: 28 February 2011

Abstract

 

Every 1 ton of concrete leads to CO2 emissions which vary between 0.05 to 0.13 tons. About 95% of all CO2 emissions from a cubic yard of concrete are from cement manufacturing. It is important to reduce CO2 emissions through the greater use of substitute to ordinary Portland cement (OPC) such as fly ash, clay and others geo-based material. This paper, report on the study of the processing of geopolymer using fly ash and alkaline activator with geopolymerization process. The factors that influence the early age compressive strength such as molarity of sodium hydroxide (NaOH) have been studied. Sodium hydroxide and sodium silicate solution were used as an alkaline activator. The geopolymer paste samples were cured at 70°C for 1 day and keep in room temperature until the testing days. The compressive strength was done at 1, 2, 3 and 7 days. The result showed that the geopolymer paste with NaOH concentration of 12 M produced maximum compressive strength.

 

Key words: Green polymeric concrete, fly ash, molarity, compressive strength.

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