| 垃圾焚烧飞灰早期胶凝活性激发研究 |
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| 引用本文： | 施惠生,阚黎黎,许碧莞. 垃圾焚烧飞灰早期胶凝活性激发研究[J]. 水泥技术, 2009, 0(1): 18-22 |
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| 作者姓名： | 施惠生 阚黎黎 许碧莞 |
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| 作者单位： | 上海同济大学先进土木工程材料教育部重点实验室,上海,200092 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，国家自然科学基金 |
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| 摘 要： | 从城市生活垃圾焚烧飞灰在水泥混凝土材料领域中的资源化利用角度出发，采用比强度分析方法试验研究了飞灰的胶凝活性，探讨了化学激发剂对飞灰-水泥复合胶凝体系早期强度的活性激发以及相关的机理。结果表明：飞灰早期胶凝活性较低，尤其当掺量高于20％后，表现十分明显。分别掺入1％～3％的CaSO4，KAl（SO4）2，Al2（SO4）3和Na／SiO3的化学激发剂后，浆体的早期抗压强度明显提高，激发效果显著，但随龄期的延长，激发效果减弱。
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| 关 键 词： | 垃圾焚烧飞灰 早期胶凝活性 抗压强度 化学激发剂 |
Study on Activating the Early Cementitious Activity of MSWI Fly Ash |
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| SHI Hui-sheng,KAAN Li-li,XU Bi-wan. Study on Activating the Early Cementitious Activity of MSWI Fly Ash[J]. Cement Technology, 2009, 0(1): 18-22 |
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| Authors: | SHI Hui-sheng KAAN Li-li XU Bi-wan |
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| Affiliation: | SHI Hui-sheng,KAN Li-li,XU Bi-wan(Key Laboratory of Advance Civil Engineering Materials of the Ministryof Education,Tongji University,Shanghai 200092,China) |
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| Abstract: | In the light of utilizing MSWI fly ash in cement-based materials, cementitious activity by means of specific compressive strength, the effect of chemical activators on cementitious activity of cement paste containing MSWI fly ash in the hydration of early ages and their effective mechanism of action were investigated and analyzed.Results show that MSWI fly ash has a low cementitious activity at early hydration, especially when the replacement was more than 20% .Therefore, in order to make sure pastes with M... |
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| Keywords: | MSWI fly ash Early cementitious activity Compressive strength Chemical activator |
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