| 钢纤维自密实高强混凝土的制备技术 |
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| 引用本文： | 王冲,林鸿斌,杨长辉,叶建雄,白光. 钢纤维自密实高强混凝土的制备技术[J]. 土木与环境工程学报, 2013, 35(2): 129-134 |
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| 作者姓名： | 王冲 林鸿斌 杨长辉 叶建雄 白光 |
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| 作者单位： | 重庆大学材料科学与工程学院,重庆,400045 |
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| 基金项目： | 重庆市建设科研项目城科学 |
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| 摘 要： | 通过坍落扩展度、T500、U型仪和L型仪等测试方法探讨了不同水胶比、砂率及不同钢纤维掺量条件下,钢纤维自密实高强混凝土的制备技术,研究了不同条件下制备的钢纤维自密实高强混凝土力学性能.结果显示,在试验条件下,适宜水胶比及砂率条件下钢纤维混凝土满足自密实混凝土工作性能要求；随着钢纤维掺量的增加,钢纤维自密实混凝土的强度提高,混凝土流动性降低.研究制得的钢纤维高强混凝土在满足自密实性能要求条件下,抗压强度达到CF90技术要求,抗折强度＞11.0 MPa.
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| 关 键 词： | 钢纤维 自密实高强混凝土 制备技术 力学性能 |
Preparation Technology of Fiber Toughened Self compacting High strength Concrete |
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| Wang Chong,Lin Hongbin,Yang Changhui,Ye Jianxiong and Bai Guang. Preparation Technology of Fiber Toughened Self compacting High strength Concrete[J]. Journal of Civil and Environmental Engineering, 2013, 35(2): 129-134 |
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| Authors: | Wang Chong Lin Hongbin Yang Changhui Ye Jianxiong Bai Guang |
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| Affiliation: | College of Material Science and Engineering, Chongqing University, Chongqing 400045, P.R.China;College of Material Science and Engineering, Chongqing University, Chongqing 400045, P.R.China;College of Material Science and Engineering, Chongqing University, Chongqing 400045, P.R.China;College of Material Science and Engineering, Chongqing University, Chongqing 400045, P.R.China;College of Material Science and Engineering, Chongqing University, Chongqing 400045, P.R.China |
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| Abstract: | Preparation technology of fiber toughened self compacting high strength concrete was tested by measuring influence of water/binder ratio, sand percentage, and steel fiber content on spread, T500 time , U shape value, and L shape value of fresh concrete. Mechanical properties were analyzed in case of different water/binder ratio, sand percentage, and steel fiber content. The test results show that suitable W/B and sand percentage were necessary to satisfy self compacting performance of the fresh concrete. With the increase of steel fiber content, the compressive strength and flexural strength were improved while workability of fresh concrete was cut down. Steel fiber toughened self compacting high strength concrete was prepared successfully with a strength grade of CF90 and a flexural strength of more than 11.0 MPa. |
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| Keywords: | steel fiber self compacting high strength concrete preparation technology mechanical properties |
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