| 自保温再生混凝土的配合比优化设计 |
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| 引用本文： | 张会芝,刘纪峰,崔秀琴. 自保温再生混凝土的配合比优化设计[J]. 信阳师范学院学报(自然科学版), 2015, 0(2): 308-312 |
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| 作者姓名： | 张会芝 刘纪峰 崔秀琴 |
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| 作者单位： | 三明学院建筑工程学院;密歇根州立大学工学院 |
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| 基金项目： | 福建省属高校科研专项计划项目(JK2013049);福建省高等学校学科带头人培养计划资助(FETU);三明市科技计划项目(2013-G-6);三明学院科研基金项目(B201302/G) |
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| 摘 要： | 研究了不同再生细骨料取代率和玻化微珠体积掺量对再生保温混凝土性能的影响.对28 d龄期各组试块的立方体抗压强度、导热系数和密度进行了测试,对试验结果进行了分析,综合28 d立方体抗压强度和导热系数两个指标对自保温再生混凝土的配合比进行了优化.结果表明:随玻化微珠体积掺量增加,28 d立方体抗压强度、导热系数和密度均降低;再生细骨料取代率和玻化微珠体积掺量同28 d立方体抗压强度、导热系数和密度的关系可由多项式拟合;再生细骨料取代率为50%、玻化微珠体积掺量为110%时的配合比为优化配合比.
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| 关 键 词： | 自保温再生混凝土 配合比 优化设计 |
Optimization of Mix Proportion Design of Thermal Insulation & Recycled Concrete |
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| Zhang Huizhi;Liu Jifeng;Cui Xiuqin. Optimization of Mix Proportion Design of Thermal Insulation & Recycled Concrete[J]. Journal of Xinyang Teachers College(Natural Science Edition), 2015, 0(2): 308-312 |
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| Authors: | Zhang Huizhi Liu Jifeng Cui Xiuqin |
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| Affiliation: | Zhang Huizhi;Liu Jifeng;Cui Xiuqin;College of Architecture and Civil Engineering,Sanming University;College of Engineering,Michigan State University; |
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| Abstract: | With the total recycled coarse aggregate replacement,the influence of recycled fine aggregate replacement ratio and glazed hollow bead volume replacement on thermal insulation & recycled concrete were studied by experimental tests. The cubic compressive strength,thermal conductivity and density of 28 d aged concrete specimen were tested,the experimental results were analyzed,and the mix proportion design of thermal insulation & recycled concrete was optimized with 28 d cubic compressive strength and thermal conductivity consideration. The results showed that:the cubic compressive strength,thermal conductivity and density decreased with the increase of glazed hollow bead volume replacement,their relationship was polynomial fitting; the mix proportion with recycled fine aggregate 50% replacement and the glazed hollow bead 110% volume replacement was the optimized design. |
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| Keywords: | thermal insulation & recycled concrete mix proportion optimization design |
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