集束型玻璃纤维混凝土轴拉、弯曲和断裂性能
|
摘要
为掌握不同掺率耐碱集束型玻璃纤维混凝土的力学韧性,本文对不同体积掺率的耐碱集束型玻璃纤维混凝土和钢纤维及粗聚烯烃纤维混凝土进行了轴拉、四点弯曲韧性和三点切口梁断裂试验。分析了纤维掺率对耐碱集束型玻璃纤维混凝土力学性能的影响规律,并和同体积掺率的钢纤维和粗聚烯烃纤维混凝土进行了比较。试验表明:耐碱集束型玻璃纤维混凝土轴拉性能优于同体积掺率的粗聚烯烃纤维混凝土,轴拉强度和极限拉应变均略高于同体积掺率的钢纤维混凝土;耐碱集束型玻璃纤维体积掺率为0. 75%时,弯曲韧性值和峰值强度比素混凝土分别提高了191. 73%和11. 47%,断裂韧度和断裂能比素混凝土分别提高了28. 16%和268. 69%,该掺率下耐碱集束型玻璃纤维混凝土弯曲韧性指标和断裂力学指标增幅较大。
In order to master the mechanical troughness the alkali-resistant bundling glass-fiber reinforced concrete,the axial tensile,four-point bending toughness and three-point incision beam fracture tests were carried out,respectively,on the alkali-resistant bundling glass-fiber reinforced concrete. The steel fiber concrete and the crude polyolefin fiber concrete had volume fractions of 0. 45% and 0. 75%,respectively. The influence of fiber fraction on the mechanical properties of the alkali-resistant bundling glass-fiber reinforced concrete was analyzed and compared with the steel fiber concrete and crude polyolefin fiber concrete with the same volume fraction. Test results show that the axial tensile properties of the alkali-resistant bundling glass-fiber reinforced concrete is better than that of crude polyolefin fiber concrete with the same volume fraction; meanwhile,the tensile strength and ultimate tensile strain are slightly higher than that of the steel-fiber reinforced concrete with the same volume. When the alkali-resistant bundling glass fiber volume fraction is 0. 75%,the flexural toughness value and peak intensity are 191. 73% and 11. 47% higher than that of plain concrete,respectively,and the fracture toughness and fracture energy are28. 16% and 268. 69% higher than that of plain concrete,respectively. The flexural toughness and fracture mechanics index of the alkali-resistant bundling glass-fiber reinforced concrete has increased greatly with this volume fraction.
In order to master the mechanical troughness the alkali-resistant bundling glass-fiber reinforced concrete,the axial tensile,four-point bending toughness and three-point incision beam fracture tests were carried out,respectively,on the alkali-resistant bundling glass-fiber reinforced concrete. The steel fiber concrete and the crude polyolefin fiber concrete had volume fractions of 0. 45% and 0. 75%,respectively. The influence of fiber fraction on the mechanical properties of the alkali-resistant bundling glass-fiber reinforced concrete was analyzed and compared with the steel fiber concrete and crude polyolefin fiber concrete with the same volume fraction. Test results show that the axial tensile properties of the alkali-resistant bundling glass-fiber reinforced concrete is better than that of crude polyolefin fiber concrete with the same volume fraction; meanwhile,the tensile strength and ultimate tensile strain are slightly higher than that of the steel-fiber reinforced concrete with the same volume. When the alkali-resistant bundling glass fiber volume fraction is 0. 75%,the flexural toughness value and peak intensity are 191. 73% and 11. 47% higher than that of plain concrete,respectively,and the fracture toughness and fracture energy are28. 16% and 268. 69% higher than that of plain concrete,respectively. The flexural toughness and fracture mechanics index of the alkali-resistant bundling glass-fiber reinforced concrete has increased greatly with this volume fraction.
引文
[1]高丹盈,王占桥,钱伟,等.钢纤维高强混凝土断裂能及裂缝张开位移[J].硅酸盐学报,2006,34(2):192-198.GAO Danying,WANG Zhanqiao,QIAN Wei,et al.Fracture energy and crack opening displacement of steel fiber reinforced high strength concrete[J].Journal of the Chinese ceramic society,2006,34(2):192-198.
[2]高丹盈,王占桥,朱海堂.钢纤维高强混凝土断裂韧度的试验研究[J].混凝土与水泥制品,2005(2):34-37.GAO Danying,WANG Zhanqiao,ZHU Haitang.Testing research on the fracture toughness of high strength concrete with steel fibers[J].China concrete and cement products,2005(2):34-37.
[3]高丹盈,刘建秀.钢纤维混凝土基本理论[M].北京:科学技术文献出版社,1994:237-249.GAO Danying,LIU Jianxiu.Basic theory of steel fibre reinforced concrete[M].Beijing:Scientific and Technical Documentation Press,1994:237-249.
[4]梁宁慧,刘新荣,孙霁.多尺度聚丙烯纤维混凝土抗裂性能的试验研究[J].煤炭学报,2012,37(8):1304-1309.LIANG Ninghui,LIU Xinrong,SUN Ji.Experimental study of crack resistance for multi-scale polypropylene fiber reinforced concrete[J].Journal of China coal society,2012,37(8):1304-1309.
[5]陈润锋,张国防,顾国芳.我国合成纤维混凝土研究与应用现状[J].建筑材料学报,2001,4(2):167-173.CHEN Runfeng,ZHANG Guofang,GU Guofang.State of study and application of synthetic fibers reinforced concrete in China[J].Journal of building materials,2001,4(2):167-173.
[6]白润山,王雪青,卜娜蕊.钢纤维混凝土的基本性能及其应用[J].建材与装饰,2017(5):14-15.BAI Runshan,WANG Xueqing,BU Narui.Basic properties and application of steel fiber reinforced concrete[J].Construction materials and decoration,2017(5):14-15.
[7]高丹盈,陈刚,HADI M N S,等.锈蚀钢纤维力学性能及极限拉伸荷载计算方法[J].建筑材料学报,2016,19(3):436-441.GAO Danying,CHEN Gang,HADI M N S,et al.Mechanical properties and calculation method for ultimate tensile load of corroded steel fibres[J].Journal of building materials,2016,19(3):436-441.
[8]邓宗才,薛会青,王力,等.耐碱玻璃纤维混凝土的弯曲韧性[J].新型建筑材料,2009,36(5):23-24.DENG Zongcai,XUE Huiqing,WANG Li,et al.Flexural toughness of alkali-resistance glass fiber reinforced concrete[J].New building materials,2009,36(5):23-24.
[9]中华人民共和国建设部,国家质量监督检验检疫总局.GB/T 50081-2002,普通混凝土力学性能试验方法标准[S].北京:中国建筑工业出版社,2003.Ministry of Construction of the People's Republic of China,General Administration of Quality Supervision,Inspection and Quarantine of the People's Republic of China.GB/T50081-2002,Standard for test method of mechanical properties on ordinary concrete[S].Beijing:China Architecture&Building Press,2003.
[10]中国工程建设标准化协会.CECS 13-2009,纤维混凝土试验方法标准[S].北京:中国计划出版社,2010.China Association for Engineering Construction Standardization.CECS 13-2009,Standard test methods for fiber reinforced concrete[S].Beijing:China Planning Press,2010.
[11]ASTM.ASTM C1609/C1609M-10,Standard test method for flexural performance of fiber-reinforced concrete(U-sing Beam with Third-Point Loading)[S].West Conshohocken,PA:ASTM,2010.
[12]ASTM.ASTM C1018-89,Standard test method for flexural toughness and first-crack strength of fiber-reinforced concrete[S].West Conshohocken,PA:ASTM,1989.
[13]RILEM T.Determination of the fracture energy of mortar and concrete by means of three-point bend tests on notched beam[J].Materials and structures,1985,18(4):287-290.
[14]邓宗才,冯琦.混杂纤维活性粉末混凝土的断裂性能[J].建筑材料学报,2016,19(1):14-21.DENG Zongcai,FENG Qi.Fracture properties of hybrid fibers reinforced reactive powder concrete[J].Journal of building materials,2016,19(1):14-21.
[15]邓宗才,王辉,刘岩.生态钢纤维混凝土弯曲韧性和断裂性能[J].建筑科学与工程学报,2017,34(2):111-118.DENG Zongcai,WANG Hui,LIU Yan.Flexural toughness and fracture properties of ecological steel fiber reinforced concrete[J].Journal of architecture and civil engineering,2017,34(2):111-118.
[2]高丹盈,王占桥,朱海堂.钢纤维高强混凝土断裂韧度的试验研究[J].混凝土与水泥制品,2005(2):34-37.GAO Danying,WANG Zhanqiao,ZHU Haitang.Testing research on the fracture toughness of high strength concrete with steel fibers[J].China concrete and cement products,2005(2):34-37.
[3]高丹盈,刘建秀.钢纤维混凝土基本理论[M].北京:科学技术文献出版社,1994:237-249.GAO Danying,LIU Jianxiu.Basic theory of steel fibre reinforced concrete[M].Beijing:Scientific and Technical Documentation Press,1994:237-249.
[4]梁宁慧,刘新荣,孙霁.多尺度聚丙烯纤维混凝土抗裂性能的试验研究[J].煤炭学报,2012,37(8):1304-1309.LIANG Ninghui,LIU Xinrong,SUN Ji.Experimental study of crack resistance for multi-scale polypropylene fiber reinforced concrete[J].Journal of China coal society,2012,37(8):1304-1309.
[5]陈润锋,张国防,顾国芳.我国合成纤维混凝土研究与应用现状[J].建筑材料学报,2001,4(2):167-173.CHEN Runfeng,ZHANG Guofang,GU Guofang.State of study and application of synthetic fibers reinforced concrete in China[J].Journal of building materials,2001,4(2):167-173.
[6]白润山,王雪青,卜娜蕊.钢纤维混凝土的基本性能及其应用[J].建材与装饰,2017(5):14-15.BAI Runshan,WANG Xueqing,BU Narui.Basic properties and application of steel fiber reinforced concrete[J].Construction materials and decoration,2017(5):14-15.
[7]高丹盈,陈刚,HADI M N S,等.锈蚀钢纤维力学性能及极限拉伸荷载计算方法[J].建筑材料学报,2016,19(3):436-441.GAO Danying,CHEN Gang,HADI M N S,et al.Mechanical properties and calculation method for ultimate tensile load of corroded steel fibres[J].Journal of building materials,2016,19(3):436-441.
[8]邓宗才,薛会青,王力,等.耐碱玻璃纤维混凝土的弯曲韧性[J].新型建筑材料,2009,36(5):23-24.DENG Zongcai,XUE Huiqing,WANG Li,et al.Flexural toughness of alkali-resistance glass fiber reinforced concrete[J].New building materials,2009,36(5):23-24.
[9]中华人民共和国建设部,国家质量监督检验检疫总局.GB/T 50081-2002,普通混凝土力学性能试验方法标准[S].北京:中国建筑工业出版社,2003.Ministry of Construction of the People's Republic of China,General Administration of Quality Supervision,Inspection and Quarantine of the People's Republic of China.GB/T50081-2002,Standard for test method of mechanical properties on ordinary concrete[S].Beijing:China Architecture&Building Press,2003.
[10]中国工程建设标准化协会.CECS 13-2009,纤维混凝土试验方法标准[S].北京:中国计划出版社,2010.China Association for Engineering Construction Standardization.CECS 13-2009,Standard test methods for fiber reinforced concrete[S].Beijing:China Planning Press,2010.
[11]ASTM.ASTM C1609/C1609M-10,Standard test method for flexural performance of fiber-reinforced concrete(U-sing Beam with Third-Point Loading)[S].West Conshohocken,PA:ASTM,2010.
[12]ASTM.ASTM C1018-89,Standard test method for flexural toughness and first-crack strength of fiber-reinforced concrete[S].West Conshohocken,PA:ASTM,1989.
[13]RILEM T.Determination of the fracture energy of mortar and concrete by means of three-point bend tests on notched beam[J].Materials and structures,1985,18(4):287-290.
[14]邓宗才,冯琦.混杂纤维活性粉末混凝土的断裂性能[J].建筑材料学报,2016,19(1):14-21.DENG Zongcai,FENG Qi.Fracture properties of hybrid fibers reinforced reactive powder concrete[J].Journal of building materials,2016,19(1):14-21.
[15]邓宗才,王辉,刘岩.生态钢纤维混凝土弯曲韧性和断裂性能[J].建筑科学与工程学报,2017,34(2):111-118.DENG Zongcai,WANG Hui,LIU Yan.Flexural toughness and fracture properties of ecological steel fiber reinforced concrete[J].Journal of architecture and civil engineering,2017,34(2):111-118.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |