钙化合物对粉煤灰地质聚合物浆体力学性能的影响。
Influence of calcium compounds on the mechanical properties of fly ash geopolymer pastes.
作者信息
Temuujin J, van Riessen A, Williams R
机构信息
Centre for Materials Research, Department of Imaging and Applied Physics, Curtin University of Technology, Perth, WA 6845, Australia.
出版信息
J Hazard Mater. 2009 Aug 15;167(1-3):82-8. doi: 10.1016/j.jhazmat.2008.12.121. Epub 2009 Jan 7.
The influence of calcium compounds (CaO and Ca(OH)(2)) on the mechanical properties of fly ash based geopolymers has been studied. Calcium compounds were substituted in fly ash at 1, 2 and 3 wt%, respectively. Curing of the geopolymers was performed at ambient temperature (20 degrees C) and 70 degrees C. Addition of calcium compounds as a fly ash substitute improved mechanical properties for the ambient temperature cured samples while decreasing properties for the 70 degrees C cured samples. Seven days compressive strength of the ambient temperature cured samples increased from 11.8 (2.9) to 22.8 (3.8)MPa and 29.2 (1.1)MPa for 3% CaO and 3% Ca(OH)(2) additions, respectively.
研究了钙化合物（CaO和Ca(OH)₂）对粉煤灰基地质聚合物力学性能的影响。钙化合物分别以1 wt%、2 wt%和3 wt%的比例替代粉煤灰。地质聚合物在环境温度（20℃）和70℃下进行养护。添加钙化合物作为粉煤灰替代物时，对于在环境温度下养护的样品，其力学性能得到改善，而对于在70℃下养护的样品，其性能则降低。环境温度下养护的样品，添加3% CaO和3% Ca(OH)₂时，7天抗压强度分别从11.8（2.9）MPa提高到22.8（3.8）MPa和29.2（1.1）MPa。
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