钢纤维纳米混凝土力学性能影响因素试验研究
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摘要
通过试件抗压试验,分析基体混凝土、钢纤维掺量、纳米材料掺量对钢纤维纳米混凝土力学性能的影响,结果表明,钢纤维对钢纤维纳米混凝土劈裂强度的影响因子为1.95,随钢纤维掺量增加,混凝土弯曲韧性增加,持荷能力增强;随着纳米材料掺量增加,钢纤维纳米混凝土抗压强度增加。
The effect of matrix concrete, steel fiber content and amount of nano-materials on the mechanical properties of concrete was analyzed by the experiment of steel fiber nano-concrete specimens.The results show that steel fiber concrete is a new type of split crack intensity affecting factor with 1.95 score. With the increase of steel fiber content, the flexural toughness of concrete increases, and the bearing capacity enhances; with the increase of the dosage of nanometer materials, the new concrete compressive strength increases.
The effect of matrix concrete, steel fiber content and amount of nano-materials on the mechanical properties of concrete was analyzed by the experiment of steel fiber nano-concrete specimens.The results show that steel fiber concrete is a new type of split crack intensity affecting factor with 1.95 score. With the increase of steel fiber content, the flexural toughness of concrete increases, and the bearing capacity enhances; with the increase of the dosage of nanometer materials, the new concrete compressive strength increases.
引文
[1]JO B,KIM C,TAE G,et al.Characteristics of cement mortar with nano-SiO2 particles[J].Construction and Building Materials,2007,21(6):1351-1355.
[2]NAZARI A,RIAHI S.The effects of SiO2 nanoparticles on physical and mechanical properties of high strength compacting concrete[J].Composites Part B:Engineering,2011,42(3):570-578.
[3]PARAMITA M.Nanomechanical properties of cementitious materials[D].Chicago:Northwestern University,2008.
[4]曾伟,马芹永.纳米SiO2钢纤维补偿收缩混凝土力学性能的试验分析[J].混凝土与水泥制品,2013(4):37-39.
[5]燕兰,邢永明.纳米SiO2对钢纤维/混凝土高温后力学性能及微观结构的影响[J].复合材料学报,2013,30(3):133-141.
[6]赵亮平,高丹盈,王丽,等.基于工作性能的纤维纳米混凝土配合比设计方法[J].河北工业大学学报,2014,43(6):89-92.
[7]姬小祥,张帆,邵景干.不同类型钢纤维混凝土力学性能室内试验分析[J].水利与建筑工程学报,2015,13(5):168-172.
[8]徐慎春,吴成清,刘中宪,等.钢纤维及纳米材料对超高性能混凝土早期力学性能的影响[J].硅酸盐通报,2014,33(3):542-546.
[9]王凯,程宗昌,王信刚,等.地铁钢筋腐蚀特性对混凝土抗压强度的影响[J].建筑技术,2016(2):32-36.
[10]蒋韶鑫,孙芳荣,白蓉,等.C80高性能混凝土配合比设计与应用[J].建筑技术,2016(2):25-27.
[11]杨杉,籍凤秋.纳米碳酸钙对钢纤维混凝土物理力学性能的影响[J].铁道建筑,2011(8):133-135.
[12]燕兰,邢永明.高温时纳米SiO2钢纤维混凝土轴向拉伸力学性能试验研究[J].混凝土,2013(12):50-53.
[13]鞠彦忠,王德弘,单明.活性粉末混凝土力学性能及冻融性能研究[J].实验力学,2012,27(2):214-220.
[2]NAZARI A,RIAHI S.The effects of SiO2 nanoparticles on physical and mechanical properties of high strength compacting concrete[J].Composites Part B:Engineering,2011,42(3):570-578.
[3]PARAMITA M.Nanomechanical properties of cementitious materials[D].Chicago:Northwestern University,2008.
[4]曾伟,马芹永.纳米SiO2钢纤维补偿收缩混凝土力学性能的试验分析[J].混凝土与水泥制品,2013(4):37-39.
[5]燕兰,邢永明.纳米SiO2对钢纤维/混凝土高温后力学性能及微观结构的影响[J].复合材料学报,2013,30(3):133-141.
[6]赵亮平,高丹盈,王丽,等.基于工作性能的纤维纳米混凝土配合比设计方法[J].河北工业大学学报,2014,43(6):89-92.
[7]姬小祥,张帆,邵景干.不同类型钢纤维混凝土力学性能室内试验分析[J].水利与建筑工程学报,2015,13(5):168-172.
[8]徐慎春,吴成清,刘中宪,等.钢纤维及纳米材料对超高性能混凝土早期力学性能的影响[J].硅酸盐通报,2014,33(3):542-546.
[9]王凯,程宗昌,王信刚,等.地铁钢筋腐蚀特性对混凝土抗压强度的影响[J].建筑技术,2016(2):32-36.
[10]蒋韶鑫,孙芳荣,白蓉,等.C80高性能混凝土配合比设计与应用[J].建筑技术,2016(2):25-27.
[11]杨杉,籍凤秋.纳米碳酸钙对钢纤维混凝土物理力学性能的影响[J].铁道建筑,2011(8):133-135.
[12]燕兰,邢永明.高温时纳米SiO2钢纤维混凝土轴向拉伸力学性能试验研究[J].混凝土,2013(12):50-53.
[13]鞠彦忠,王德弘,单明.活性粉末混凝土力学性能及冻融性能研究[J].实验力学,2012,27(2):214-220.