再生骨料清水混凝土的制备与施工工艺优化研究
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摘要
在住建部"十三五"规划关于加强再生建材生产技术和工艺研发政策的指导下,文中提出了将再生骨料运用到清水混凝土工程中的建议,对再生骨料清水混凝土的制备工艺进行了设计,通过试验分析不同体积率的抗裂纤维掺入对再生骨料清水混凝土性能指标的影响,给出了掺入纤维的体积率建议;针对实际工程中再生骨料清水混凝土的质量缺欠,从模板工程、表面颜色差异和表面气孔等方面,分析了缺欠产生的原因,提出了施工工艺的优化建议。
Under the guidance of the policy about strengthening the production and development technology of recycled materials in the"13 th Five-Year"plan of the Ministry of Housing,the proposal of applying recycled aggregate to the project of fair-faced concrete is put forward in this paper.The preparation process of recycled aggregate concrete is designed and the effect on the performance index of recycled aggregate concrete with different volume rates of anti cracking fiber is analyzed by the experiment,so as to give the suggestion of volume rates of fiber.In view of the lack of quality of recycled aggregate concrete in actual engineering,the deficiency is analyzed from the aspects of template engineering,surface color difference and surface porosity.The reasons and optimization suggestions to the deficiency are put forward.
Under the guidance of the policy about strengthening the production and development technology of recycled materials in the"13 th Five-Year"plan of the Ministry of Housing,the proposal of applying recycled aggregate to the project of fair-faced concrete is put forward in this paper.The preparation process of recycled aggregate concrete is designed and the effect on the performance index of recycled aggregate concrete with different volume rates of anti cracking fiber is analyzed by the experiment,so as to give the suggestion of volume rates of fiber.In view of the lack of quality of recycled aggregate concrete in actual engineering,the deficiency is analyzed from the aspects of template engineering,surface color difference and surface porosity.The reasons and optimization suggestions to the deficiency are put forward.
引文
[1]乔宏霞,关利娟,曹辉.再生骨料混凝土研究现状及进展[J].混凝土,2017,333(7):77-82.
[2]蒋勤俭,吕丽萍,刘昊.装饰混凝土关键技术研究[J].装饰混凝土,2016,79(1):70-75.
[3]崔鑫,于振水,路林海,等.清水混凝土的性能研究、生产及施工技术综述[J].混凝土,2017,327(1):102-106.
[4]王晓刚,毛新奇,赵铁军.聚乙烯醇纤维水泥基复合材料[J].青岛建筑工程学院学报,2004,25(4):28-31.
[5]Yoo D Y,Banthia N,Yoon Y S.Predicting service deflection of ultra-high-performance fiber-reinforced concrete beams reinforced with GFRP bars[J].Composites Part B:Engineering,2016,99:381-397.
[6]王原原,孙仁娟,武新胜,等.玻璃纤维对混凝土收缩开裂性能的影响研究[J].建材世界,2015,36(4):11-13.
[7]郭正兴,王玉岭,姜波.《混凝土结构工程施工规范》GB50666-2011编制简介——模板工程[J].施工技术.2012,41(360):5-10.
[8]蔡炜凌,王念念,黄越平.基于模板设计的饰面清水混凝土全过程施工技术[J],建筑技术,2016,47(7):626-629.
[9]崔鑫,夏文杰,王龙志.工程应用中清水混凝土黑斑成因分析研究[J].施工技术,2017,46(3):72-75.
[10]宋彦杰.清水混凝土墙明缝转禅缝时容易出现的质量通病与防治[J].建筑施工,2015(2):205-207.
[2]蒋勤俭,吕丽萍,刘昊.装饰混凝土关键技术研究[J].装饰混凝土,2016,79(1):70-75.
[3]崔鑫,于振水,路林海,等.清水混凝土的性能研究、生产及施工技术综述[J].混凝土,2017,327(1):102-106.
[4]王晓刚,毛新奇,赵铁军.聚乙烯醇纤维水泥基复合材料[J].青岛建筑工程学院学报,2004,25(4):28-31.
[5]Yoo D Y,Banthia N,Yoon Y S.Predicting service deflection of ultra-high-performance fiber-reinforced concrete beams reinforced with GFRP bars[J].Composites Part B:Engineering,2016,99:381-397.
[6]王原原,孙仁娟,武新胜,等.玻璃纤维对混凝土收缩开裂性能的影响研究[J].建材世界,2015,36(4):11-13.
[7]郭正兴,王玉岭,姜波.《混凝土结构工程施工规范》GB50666-2011编制简介——模板工程[J].施工技术.2012,41(360):5-10.
[8]蔡炜凌,王念念,黄越平.基于模板设计的饰面清水混凝土全过程施工技术[J],建筑技术,2016,47(7):626-629.
[9]崔鑫,夏文杰,王龙志.工程应用中清水混凝土黑斑成因分析研究[J].施工技术,2017,46(3):72-75.
[10]宋彦杰.清水混凝土墙明缝转禅缝时容易出现的质量通病与防治[J].建筑施工,2015(2):205-207.