| 废混凝土在GRC中的再生利用探究 |
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| 引用本文： | 程海丽,;杨飞华,;王宝根.废混凝土在GRC中的再生利用探究[J].中国再生资源,2014(8):23-26. |
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| 作者姓名： | 程海丽 ;杨飞华 ;王宝根 |
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| 作者单位： | [1]北方工业大学建筑学院,北京100144; [2]固废资源化利用与节能建材国家重点实验室,北京100041 |
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| 基金项目： | 北京市教委科技发展计划项目（KM201210009010）;固废资源化利用与节能建材国家重点实验室开放基金项目（SWR-2012-003）;北京市自然科学基金项目（2142013） |
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| 摘 要： | 研究了再生砖骨料的取代率对再生骨料GRC的影响及变化规律,并进一步采用正交设计方法,研究了粉煤灰、硅灰及再生混凝土骨料对GRC的影响。结果表明:再生骨料GRC的强度随废混凝土取代率的提高先增长后下降,当废混凝土取代天然砂30%,可达到或超过天然砂GRC的力学性能;当粉煤灰取代水泥10%,同时硅灰取代水泥10%,废混凝土取代天然砂30%时,其抗折、抗压强度值最大。
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| 关 键 词： | GRC 废混凝土 再生利用 |
Research on recycling use of waste concrete in GRC |
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| Institution: | CHENG Haili,YANG feihua,WANG Baogen(1. North China University of Technology, Beijing 100144, China; 2. State Key Laboratory of Solid Waste Reuse for Building, Beijing 100041, China) |
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| Abstract: | This paper studies the effects of replacement ratio of waste concrete aggregate on the recycled aggregate GRC, and then, by using the orthogonal design method,the effects of fly ash,silica fume and waste concrete aggregate on GRC is further researched. The results show that when the replacement ratio of waste concrete to natural sand is 30%, the mechanical properties of which reach or can exceed to the GRC with natural sand. when the replacement ratio of fly ash to P·O cement is 10%, silica fume to P·O cement is 10%, and waste concrete to natural sand is 30%, the performance of GRC is optimal. |
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| Keywords: | GRC waste concrete recycling use |
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