| 再生细集料对水泥混凝土物理力学性能的影响 |
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| 引用本文： | 孙家瑛,车乘乘.再生细集料对水泥混凝土物理力学性能的影响[J].土木建筑与环境工程,2011,33(3):143-146. |
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| 作者姓名： | 孙家瑛 车乘乘 |
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| 作者单位： | 浙江大学 宁波理工学院 绿色建材与废弃物资源化研究中心,宁波 315100;上海大学 土木工程系,上海 20072;上海大学 土木工程系,上海 20072 |
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| 基金项目： | 科技部国际合作重大项目(2010FA24590)；国家自然科学基金(50808160) |
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| 摘 要： | 废弃混凝土通过一系列再生工艺可以得到再生混凝土细集料,将其部分或全部替代天然砂配制混凝土可以达到变废为宝的目的,但是再生混凝土细集料特殊的性质会使得掺再生细集料的混凝土性能与普通混凝土之间存在较大的差异.在研究再生混凝土细集料的粒径和物理特性对水泥混凝土物理力学性能影响的基础上,探讨再生混凝土细集料对混凝土的抗气渗性能...
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| 关 键 词： | 再生细集料 最小粒径 物理力学性能 抗气渗性能 氯离子渗透性能 |
Influence of Fine Recycled Aggregate on Physical and Mechanical Properties of Concrete |
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| SUN Jia-ying and CHE Cheng-cheng.Influence of Fine Recycled Aggregate on Physical and Mechanical Properties of Concrete[J].土木建筑与环境工程,2011,33(3):143-146. |
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| Authors: | SUN Jia-ying and CHE Cheng-cheng |
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| Affiliation: | 1. Research Center of Green Building Materials and Waste Resources Reuse, Ningbo Institute of Technology Zhejiang University, Ningbo 315100, P.R.China;2.Department of Civil Engineering,Shanghai University,Shanghai 200072, P.R.China;Department of Civil Engineering,Shanghai University,Shanghai 200072, P.R.China |
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| Abstract: | Based on a series of recycle process, waste concrete can be made into fine recycled aggregate which can be used completely or partly to compound concrete as a substitute for natural sand. But the special properties of fine recycled aggregate make the performance of concrete with fine recycled aggregate different from normal concrete. Characteristics of fine recycled aggregate and its influence on physical and mechanical properties of concrete are studied. On this basis, the influence of fine recycled aggregate on gas permeation properties, chloride permeability, and carbonation resistance of concrete are also studied. It is found that fine recycled aggregate produces a lot of defects in crushing preparation. And the compressive strength, the chloride permeability and the carbonation resistance of the concrete with fine recycled aggregate as substitution show difference from that of normal concrete. |
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| Keywords: | fine recycled aggregate the smallest aggregate size physical and mechanical properties gas permeation properties chloride permeability |
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