| 钢纤维超高强混凝土的力学性能试验 |
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| 引用本文： | 杜修力, 田予东, 田瑞俊, 张磊. 钢纤维超高强混凝土的力学性能试验[J]. 北京工业大学学报, 2009, 35(9): 1198-1203. |
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| 作者姓名： | 杜修力 田予东 田瑞俊 张磊 |
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| 作者单位： | 北京工业大学,教育部与北京市共建城市与工程安全减灾重点实验室,北京,100124;北京工业大学,教育部与北京市共建城市与工程安全减灾重点实验室,北京,100124;中铁第五勘察设计院集团有限公司,北京,102600 |
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| 基金项目： | 国家自然科学基金重点资助项目(50638030); 国家“十一.五”科技支撑资助项目(2006BAJ13B02) |
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| 摘 要： | 为了配制出强度高、韧性好、抗冲击性能良好的超高强混凝土,对钢纤维掺入体积率(Vf)为0~3%、基体强度为110 MPa以上的钢纤维超高强混凝土(SFRVHSC)进行立方体抗压、轴向抗压、劈裂抗拉、抗折强度和弹性模量等性能的测试,并对钢纤维超高强混凝土弯曲韧性进行了试验研究.结果表明,SFRVHSC抗压强度随Vf(0~3%)的增加有一定的增长,弹性模量随着材料抗压强度的提高略有增加;钢纤维对SFRVHSC的劈裂抗拉、抗折强度有显著的增强作用.SFRVHSC表现出优异的韧性,弯曲韧性指数I5、I10、I20分别达基体混凝土的4.71~5.15、9.47~11.23、19.02~24.06倍.SFRVHSC梁的荷载-位移曲线与坐标轴包含的面积也明显增加.
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| 关 键 词： | 钢纤维超高强混凝土 抗压强度 劈裂强度 抗折强度 弯曲韧性 |
| 收稿时间： | 2008-01-02 |
Experimental Research on the Mechanical Properties of SFRVHC |
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| DU Xiu-li, TIAN Yu-dong, TIAN Rui-jun, ZHANG Lei. Experimental Research on the Mechanical Properties of SFRVHC[J]. Journal of Beijing University of Technology, 2009, 35(9): 1198-1203. |
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| Authors: | DU Xiu-li TIAN Yu-dong TIAN Rui-jun ZHANG Lei |
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| Affiliation: | DU Xiu-li1,TIAN Yu-dong1,2,TIAN Rui-jun1,ZHANG Lei1 (1.Beijing Key Laboratory of Urban Security , Disaster Engineering,Ministry of Education,Beijing University of Technology,Beijing 100124,China,2.China Reailway Fifth Survey , Design Institute Group Co.,Ltd.,Beijing 102600,China) |
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| Abstract: | In order to make up very high strength concrete with high-toughness and good performance of shock resistance,the mechanical performance of SFRVHSC was studied,whose steel fiber volume fraction varied from 0 to 3% and plain concrete strength was over 110 MPa.The research work involved the test of mechanical properties such as compressive strength,splitting tensile strength,axial compressive strength,static elastic modulus,bending strength and flexural toughness.The results indicate that,(1) Along with the vo... |
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| Keywords: | SFRVHSC compressive strength splitting tensile strength bending strength flexural toughness |
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