| 村镇建筑垃圾制备空心砌块物理性能 |
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| 引用本文： | 刘军,姜淼,于艳萍.村镇建筑垃圾制备空心砌块物理性能[J].沈阳建筑工程学院学报(自然科学版),2010,26(2). |
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| 作者姓名： | 刘军 姜淼 于艳萍 |
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| 作者单位： | 沈阳建筑大学材料科学与工程学院,辽宁,沈阳,110168 |
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| 基金项目： | 国家十一五重大科技支撑计划项目，辽宁省教育厅创新团队项目 |
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| 摘 要： | 目的 研究村镇废弃黏土砖再生粗骨料的取代率对混凝土空心砌块基本性能的影响.方法 利用水泥砂浆对村镇废弃黏土砖进行预处理,通过改变再生粗骨料的取代率,测定混凝土空心砌块在不同取代率时的含水率、吸水率、干燥收缩率、抗压强度以及抗折强度,并进行扫描电镜分析.结果 随着再生粗骨料取代率的增加,混凝土空心砌块的含水率、吸水率、干燥收缩率逐渐增大,含水率为7.7%,吸水率为14.2%,干燥收缩率为0.52%.而混凝土空心砌块的28 d抗压强度和抗折强度呈现递减的趋势,并且取代率在达到40%时的混凝土空心砌块的力学性能要好于其他取代率.结论 村镇废弃黏土砖经水泥砂浆预处理后所制备的混凝土空心砌块的主要性能已达到普通混凝土空心砌块国家标准要求.
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| 关 键 词： | 废弃黏土砖 再生粗骨料 取代率 混凝土空心砌块 |
Study on the Physical and Mechanical Properties of Hollow Block Prepared by Village Construction Waste |
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| LIU Jun,JIANG Miao,YU Yanping.Study on the Physical and Mechanical Properties of Hollow Block Prepared by Village Construction Waste[J].Journal of Shenyang Archit Civil Eng Univ: Nat Sci,2010,26(2). |
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| Authors: | LIU Jun JIANG Miao YU Yanping |
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| Affiliation: | LIU Jun,JIANG Miao,YU Yanping(School of Materials Science , Engineering,Shenyang JianZhu University,Shenyang China,110168) |
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| Abstract: | The influence of the replacement rate of the recycled clay brick coarse aggregate on the basic performance of concrete hollow block is studied.The cement mortar is used to pretreat the village abandoned brick.By changing the replacement rate of recycled coarse aggregate,the moisture content,water absorption,drying shrinkage,compressive strength and resistance to folding strength of the concrete hollow block at different replacement rate are tested and scanning electron microscope analysis is carried out.Wit... |
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| Keywords: | abandoned clay bricks recycled coarse aggregate replacement rate concrete hollow block |
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