| 再生混凝土的强度及耐久性能研究 |
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| 引用本文： | 丁天庭,李启华,陈树东.再生混凝土的强度及耐久性能研究[J].硅酸盐通报,2017,36(3):846-850. |
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| 作者姓名： | 丁天庭 李启华 陈树东 |
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| 作者单位： | 浙江建设职业技术学院建筑工程系,杭州,311231 |
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| 基金项目： | 浙江省住房和城乡建设厅2014年度建设科研和推广项目(2014Z019) |
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| 摘 要： | 基于基本的力学方法和耐久性方法研究了再生混凝土的抗压强度、抗碳化性能和抗冻性能.并采用压汞法对再生混凝土的孔结构进行研究.结果表明:再生混凝土的抗压强度比普通混凝土的抗压强度略有降低,孔隙率相比普通混凝土的孔隙率增加了49.5%;其抗碳化能力小于普通混凝土的抗碳化能力;再生混凝土的抗冻性远远小于普通混凝土的抗冻性,180次循环之后其质量损失率接近普通混凝土质量损失率的3倍.
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| 关 键 词： | 再生混凝土 抗压强度 抗碳化 抗冻性 孔径分布 |
Basic Mechanics and Durability of Recycled Concrete |
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| DING Tian-ting,LI Qi-hua,CHEN Shu-dong.Basic Mechanics and Durability of Recycled Concrete[J].Bulletin of the Chinese Ceramic Society,2017,36(3):846-850. |
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| Authors: | DING Tian-ting LI Qi-hua CHEN Shu-dong |
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| Abstract: | The compressive strength,carbonation resistance and freezing resistance of recycled concrete were studied based on the basic mechanical method and the durability methods.And the pore structure of recycled concrete was analyzed by mercury intrusion porosimetry (MIP).The results show that the compressive strength of recycled concrete is slightly lower than that of ordinary concrete.The porosity of the recycled concrete is 49.5% higher than that of ordinary concrete.The carbonation resistance of recycled concrete is less than that of ordinary concrete.The freezing resistance of recycled concrete is much less than that of ordinary concrete, and its mass loss rate is 3 times of that of ordinary concrete after 180 cycles. |
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| Keywords: | recycled concrete compressive strength carbonation resistance freezing resistance pore size distribution |
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