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Volume 2, Number 1, January 2020 , pages 1-12 DOI: https://doi.org/10.12989/cme.2020.2.1.001 |
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Fabrication of sustainable geopolymer mortar incorporating granite waste |
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H.M. Khater, A.M. El Nagar, M. Ezzat and M. Lottfy
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| Abstract | ||
| The objective of the present paper is to valorize granite powder wastes generated from granite mining and processing industry which cause vast environmental pollutions, in production of valuable building materials using of geopolymer technology by alkaline activating. The current work focuses on the effect of incorporation of granite waste from 0 up to 15% on the characterization of the formed geopolymer and track the formed hardened materials using Fourier transform infra-red (FTIR) and X-ray diffraction technique (XRD), whereas the compressive strength and water absorption were used to estimate the optimum ratio of granite waste that can be used without a negative effect on the hardened mortar. Also, the effect of various compaction loads at 12.5 and 25 MPa on the physico-mechanical properties of the hardened mortar using low liquid to solid ratio. The results showed clear enhancement in the structure and performance of the produced geopolymer mortar up to 7.5% granite waste addition giving compressive strength values more than 46 MPa, while the compaction positively enhanced the compressive strength of the formed mortar with increasing of pressure loads with about 20-25% and decreasing the water absorption values by about 70% which can be related to better compaction of the matrix. | ||
| Key Words | ||
| granite waste; geopolymer; compact; composite | ||
| Address | ||
| H.M. Khater, A.M. El Nagar, M. Ezzat and M. Lottfy: Housing and Building National Research Centre (HBNRC), 87 El-Tahreer St., Dokki, Giza, P.O. Box 12411, Cairo, Egypt | ||
