Wei, Xiaobo (2017) The development of a setting controllable geopolymer concrete: The mechanical properties and the microstructure. Coursework Masters thesis, University of Southern Queensland. (Unpublished)
Abstract
Geopolymer concrete is a kind of new concrete material which using the geologically available aluminasilicate (Al-Si) materials (such as kaolinite clay, industrial wastes containing aluminosilicate) mixed with alkali materials (such as NaOH, Na2SiO3) as the cementitious material. Compared to the ordinary Portland cement concrete, it has excellent performance, particularly the lower CO2 emission characteristic. As one of the most widely used material in civil engineering, the development of this type of new concrete materials has a great potential in application. In this paper, the geopolymer concrete prepared by using two kinds of industrial wastes, which are fly ash and slag, has been studied, and by changing the proportion of its raw materials and alkali activator ingredients to determine effects of the chemical composition of geopolymer concrete on its mechanical properties. Two retarders (namely CA and TB) were studied for their effect on setting time, and the experiment results indicate that the increase of the alkali activator concentration or the amount of GGBFS in binder can improve the compressive strength of the blended geopolymer concretes. Moreover, there was a significantly prolonged setting time when the amount of CA and TB reached 1.0%.
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| Item Type: | Thesis (Non-Research) (Coursework Masters) |
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| Item Status: | Live Archive |
| Faculty/School / Institute/Centre: | Current - Faculty of Health, Engineering and Sciences - No Department (1 Jul 2013 -) |
| Supervisors: | Zhang, Zuhua |
| Qualification: | Master of Engineering Sciences (Civil Engineering) |
| Date Deposited: | 16 Jul 2026 01:48 |
| Last Modified: | 16 Jul 2026 01:48 |
| Uncontrolled Keywords: | geopolymer concrete, aluminasilicate materials, Al-Si, portland cement concrete, CO2 emission |
| URI: | https://sear.unisq.edu.au/id/eprint/53250 |
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