不同品种纤维改善混凝土抗裂性能对比
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摘要
选用不同品种纤维:聚丙烯纤维、聚乙烯醇纤维、玄武岩纤维和钢纤维,对比它们对混凝土抗裂性能的改善效果。采用抗裂圆环外壁贴应变片的方法采集混凝土的收缩应变,直观描述混凝土收缩开裂。评价指标包括脆性系数、弯曲韧性和收缩变形。结果表明:改善收缩变形效呆罗好的是聚丙烯纤维、聚乙烯醇纤维;在降低脆性系数、提高弯曲韧性方面,效果较好的是钢纤维、玄武岩纤维。
引文
[1]张佚伦。聚丙烯纤维混凝土早期收缩与抗裂性能试验研究[D].浙江大学2006
[2]黄承逵。纤维混凝土结构[M].北京:机械工业出版社,2005.
[3]沈荣熹,崔琪,李青海。新型纤维增强水泥基复合材料[M].北京:中国建材工业出版社,2004.
[4]ASTM C1581-2004《tandard Test Method for Determining Age at Cracking and Induced Tensile Stress Characteristics of Mortar and Concrete under Restrained Shrinkage^.
[5]张风臣,刘翠兰,陈拥军。改进型环形收缩试验方法[J]。兰州理工大学学报。2006,,32(1):126-129
[6]Nemkumar Banthia,Rishi Gupta.Influence of polypropylene fiber geometry on plastic shrinkage cracking in concrete[J].Cement and Concrete Research,2006,36:1263~1267.
[7]Alexandra Passuello,Giacomo Moriconi,Surendra P.Shah.Cracking behavior of concrete with shrinkage reducing admixtures and PVA fibers[J].Cement&Concrete Composites,2009,39:699~704.
[8]Lennart Ostergaard,David Lange,Henrik Stang.Early-age stress-cracking opening relationships for high performance concretefJ].Cement&Concrete Composites,2004,26:563~572.
[9]亢景付。水泥混凝土的塑性收缩及聚丙烯纤维阻裂增韧机理探讨,混凝土,2003(1):10~12
[10]王成启,吴科如。不同弹性模量的纤维对高强混凝土力学性能的影响[J]。混凝土与水泥制品。2002(3):36~37.
[11]沈荣熹。纤维混凝土。见:龚洛书主编,混凝土实用手册(第二版)。北京:中国建筑工业出版社,1995。
[12]ASTM C1018-97 Standard Test Method for Flexural Toughness and First Crack Strength of Fiber-Reinforced Concrete(Using Beam with Third-Point Loading)[S].1997.
[13]Ronald F,Zollo,Fiber-reinforced Concrete:an Overview after 30 Years of Development[J].Cement and Concrete Composites,1997,19:107~122.
[14]石国柱。钢纤维混凝土弯曲韧性和断裂性能试验研究[D].郑州大学。2005.
[15]毕巧巍,汪辉,杨兆鹏。不同弹性模量的纤维对矿渣RPC力学性能的影响。大连交通大学学报。2009,3(5):23~26.
[2]黄承逵。纤维混凝土结构[M].北京:机械工业出版社,2005.
[3]沈荣熹,崔琪,李青海。新型纤维增强水泥基复合材料[M].北京:中国建材工业出版社,2004.
[4]ASTM C1581-2004《tandard Test Method for Determining Age at Cracking and Induced Tensile Stress Characteristics of Mortar and Concrete under Restrained Shrinkage^.
[5]张风臣,刘翠兰,陈拥军。改进型环形收缩试验方法[J]。兰州理工大学学报。2006,,32(1):126-129
[6]Nemkumar Banthia,Rishi Gupta.Influence of polypropylene fiber geometry on plastic shrinkage cracking in concrete[J].Cement and Concrete Research,2006,36:1263~1267.
[7]Alexandra Passuello,Giacomo Moriconi,Surendra P.Shah.Cracking behavior of concrete with shrinkage reducing admixtures and PVA fibers[J].Cement&Concrete Composites,2009,39:699~704.
[8]Lennart Ostergaard,David Lange,Henrik Stang.Early-age stress-cracking opening relationships for high performance concretefJ].Cement&Concrete Composites,2004,26:563~572.
[9]亢景付。水泥混凝土的塑性收缩及聚丙烯纤维阻裂增韧机理探讨,混凝土,2003(1):10~12
[10]王成启,吴科如。不同弹性模量的纤维对高强混凝土力学性能的影响[J]。混凝土与水泥制品。2002(3):36~37.
[11]沈荣熹。纤维混凝土。见:龚洛书主编,混凝土实用手册(第二版)。北京:中国建筑工业出版社,1995。
[12]ASTM C1018-97 Standard Test Method for Flexural Toughness and First Crack Strength of Fiber-Reinforced Concrete(Using Beam with Third-Point Loading)[S].1997.
[13]Ronald F,Zollo,Fiber-reinforced Concrete:an Overview after 30 Years of Development[J].Cement and Concrete Composites,1997,19:107~122.
[14]石国柱。钢纤维混凝土弯曲韧性和断裂性能试验研究[D].郑州大学。2005.
[15]毕巧巍,汪辉,杨兆鹏。不同弹性模量的纤维对矿渣RPC力学性能的影响。大连交通大学学报。2009,3(5):23~26.