POTENTIAL USE COCONUT MILK AS ALTERNATIVE TO ALKALI SOLUTION FOR GEOPOLYMER PRODUCTION

Authors

  • Gahasan Fahim Huseien Department of Structure and Materials, Faculty of Civil Engineering & UTM Construction Research Centre, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
  • Jahangir Mirza Department of Structure and Materials, Faculty of Civil Engineering & UTM Construction Research Centre, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
  • Mohd Warid Hussin Department of Structure and Materials, Faculty of Civil Engineering & UTM Construction Research Centre, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
  • Mohd Azreen Mohd Ariffin Department of Structure and Materials, Faculty of Civil Engineering & UTM Construction Research Centre, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia

DOI:

https://doi.org/10.11113/.v78.8316

Keywords:

Geopolymer mortar, alkali activator solution, coconut milk, compressive strength

Abstract

This work aims to verify the feasibility of utilizing coconut milk as the alkali activator solution in geopolymer production and the impact on mortar properties; geopolymer mortar is  still more expensive than ordinary Portland cement mortar simply because the cost of alkali solution. Coconut milk is extensively available in Malaysia and very rich in potassium and sodium. In this research, the coconut milk was used as alkali solution (100%) at first, and then replaced by NaOH, Na2SiO3 and in the last stage mixed with NaOH and Na2SiO3 at 50%. Normal solution component of Na2SiO3 and NaOH with 8 M, and used as control samples. Binder to fine aggregate (B:A) and solution to binder (S:B) ratios were fixed at 1.5 and 0.30 respectively. Multi blend binder based geopolymer mortar are used in this study. The samples were cured with different conditions, cured at room temperature and oven temperature of 60 and 90°C. Compressive strength tests were carried out to determine the properties of hardened mortar. The samples prepared with coconut milk showed low compressive strength as compared to control samples, The results demonstrated that using coconut milk as alternative to alkali solution in geopolymer industry is not a viable option.

Author Biographies

  • Gahasan Fahim Huseien, Department of Structure and Materials, Faculty of Civil Engineering & UTM Construction Research Centre, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
    UTM
  • Jahangir Mirza, Department of Structure and Materials, Faculty of Civil Engineering & UTM Construction Research Centre, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
    UTM
  • Mohd Warid Hussin, Department of Structure and Materials, Faculty of Civil Engineering & UTM Construction Research Centre, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
    UTM
  • Mohd Azreen Mohd Ariffin, Department of Structure and Materials, Faculty of Civil Engineering & UTM Construction Research Centre, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
    UTM

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Published

2016-10-31

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Section

Science and Engineering

How to Cite

POTENTIAL USE COCONUT MILK AS ALTERNATIVE TO ALKALI SOLUTION FOR GEOPOLYMER PRODUCTION. (2016). Jurnal Teknologi, 78(11). https://doi.org/10.11113/.v78.8316