| 再生混凝土配合比设计的试验研究 |
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| 引用本文： | 赵军,邓志恒,林俊.再生混凝土配合比设计的试验研究[J].广西工学院学报,2007,18(3):80-84. |
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| 作者姓名： | 赵军 邓志恒 林俊 |
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| 作者单位： | 1. 广西工学院土木建筑工程系,广西,柳州,545006;广西大学土木建筑工程学院,广西,南宁,530004
2. 广西大学土木建筑工程学院,广西,南宁,530004 |
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| 基金项目： | 广西工学院校科研和教改项目 |
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| 摘 要： | 设计10个混凝土配合比试验,研究了再生骨料吸水率、水灰比、再生骨料取代率对再生混凝土工作性能及强度的影响。通过与普通混凝土试验对比分析认为:符合现行规范要求的再生粗骨料用于配制混凝土是可行的;再生骨料的吸水性能对再生混凝土拌和物的工作性能影响很大,因此,再生混凝土配合比设计时应考虑应用的实际情况等,选用合适的再生骨料掺量,以便获得相应的强度。
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| 关 键 词： | 再生混凝土 再生骨料 配合比 |
| 文章编号： | 1004-6410（2007）03-0080-05 |
| 收稿时间： | 2007-05-08 |
| 修稿时间： | 2007年5月8日 |
Experimental study on mixture ratio design of recycled aggregate concrete |
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| ZHAO Jun,DENG Zhi-heng,LIN Jun.Experimental study on mixture ratio design of recycled aggregate concrete[J].Journal of Guangxi University of Technology,2007,18(3):80-84. |
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| Authors: | ZHAO Jun DENG Zhi-heng LIN Jun |
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| Abstract: | Ten kinds of mixture ratio for concrete were designed and performed.We studied the relationships between the construction performance of concrete,compressive strength and water-absorptivity of recycled aggregate,the mw/mc ratio,replacement ratio of recycled aggregate.The results indicated that recycled aggregate could be used to make recycled aggregate concrete if technical specification of it Conformed to the requirement of present standard.Water-absorptivity of recycled aggregate has a great influence on the construction performance of concrete,so the design of mixture ratio for concrete should be based on the water-absorptivity of recycled aggregate.The recycled coarse aggregate(RCA) replacement ratio has a remarkable influence on the compressive strength of recycled aggregate concrete.Nevertheless,the compressive strength of recycled aggregate concrete can achieve the target compressive strength by choicing a correct ratio of recycled aggregate. |
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| Keywords: | recycled aggregate concrete recycled aggregate mixture ratio of concrete |
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