全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

超高性能钢纤维混凝土力学性能

, PP. 8-13

Keywords: 超高性能纤维混凝土,钢纤维,力学性能,抗压强度,抗弯强度,断裂能,弯曲韧度

Full-Text   Cite this paper   Add to My Lib

Abstract:

用端部弯折型、端部扁平型和波浪型3种钢纤维分别配制抗压强度大于100MPa的超高性能纤维混凝土,纤维体积掺率分别为1.0%、2.0%、2.5%和3.0%。通过立方体抗压试验和梁抗弯试验,研究钢纤维形状和体积掺率对超高性能纤维混凝土流动性、抗压强度、抗弯强度、断裂能和弯曲韧度的影响。试验结果表明纤维体积掺率为1.0%~2.5%时,端部扁平型钢纤维超高性能混凝土的抗弯强度、断裂能和弯曲韧度最佳;纤维体积掺率为3.0%时,端部弯折型钢纤维超高性能混凝土的抗弯强度、断裂能和弯曲韧度最佳;纤维体积掺率为2.0%时,端部扁平型钢纤维超高性能混凝土的施工性能和力学性能最佳;纤维体积掺率为1.0%~3.0%时,波浪型钢纤维超高性能混凝土的抗压强度最高,但抗弯强度和断裂能最低。

References

[1]  CHAN Y W, CHU S H. Effect of silica fume on steel fiber bond characteristics in reactive powder concrete[J]. Cement and Concrete Research, 2004, 34(7), 1167-1172.
[2]  ROSSI P. High performance multimodal fiber reinforced cement composites(HPMFRCC): the LCPC experience[J]. ACI Materials Journal, 1997, 94(6): 478-483.
[3]  LE T T. Ultra high performance fibre reinforced concrete paving flags[D]. Liverpool: University of Liverpool, 2008.
[4]  YANG Song-lin, MILLARD S G, SOUTSOS M N, et al. Influence of aggregate and curing regime on the mechanical properties of ultra-high performance fiber reinforced concrete(UHPFRC)[J]. Construction and Building Materials, 2009, 23(6): 2291-2298.
[5]  AFGC, ultra high performance fiber-reinforced concretes, interm recommendations[S].
[6]  GB/T 2419―2005,水泥胶砂流动度测定方法[S]. GB/T 2419―2005, test method for fluidity of cement mortar[S].(in Chinese)
[7]  GB/T 50081―2002,普通混凝土力学性能试验方法标准[S]. GB/T 50081―2002, standard for test method of mechanical properties on ordinary concrete[S].(in Chinese)
[8]  CECS 13―2009,纤维混凝土试验方法标准[S]. CECS 13―2009, standard test methods for fiber reinforced concrete[S].(in Chinese)
[9]  RICHARD P, CHEYREZY M. Composition of reactive powder concretes[J]. Cement and Concrete Research, 1995, 25(7): 1501-1511.
[10]  ROSSI P. Development of new cement composite materials for construction[J]. Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications, 2005, 219(1): 67-74.
[11]  王发洲,胡曙光,丁庆军,等.高性能复合道路水泥混凝土的研究[J].中国公路学报,2000,13(3):12-14. WANG Fa-zhou, HU Shu-guang, DING Qing-jun, et al. Research on the high performance composite road concrete[J]. China Journal of Highway and Transport, 2000, 13(3): 12-14.(in Chinese)
[12]  SCHMIDT M, FEHLING E. Ultra-high-performance con-crete: research, development and application in Europe[J]. ACI Materials Journal, 2005, 102(4): 1-32.
[13]  TAKASHIMA H, MIYAGAI K, HASHIDA T, et al. A design approach for the mechanical properties of polypropylene discontinuous fiber reinforced cementitious composites by extrusion molding[J]. Engineering Fracture Mechanics, 2003, 70(7/8): 853-870.
[14]  El-DIEB A S. Mechanical, durability and microstructural characteristics of ultra-high-strength self-compacting concrete incorporating steel fibers[J]. Materials and Design, 2009, 30(10): 4286-4292.
[15]  KATRIN H, MARCO V, EMMANUEL D, et al. Development of the mechanical properties of an ultra-high performance fiber reinforced concrete(UHPFRC)[J]. Cement and Concrete Research, 2006, 36(7): 1362-1370.
[16]  SOROUSHIAN P, BAYASI Z. Fiber type effects on the performance of steel fiber reinforced concrete[J]. ACI Materials Journal, 1991, 88(2): 129-134.
[17]  DING Y, ZHANG Y, THOMAS A. The investigation on strength and flexural toughness of fibre cocktail reinforced self-compacting high performance concrete[J].Construction and Building Materials, 2009, 23(1): 448-452.
[18]  BANTHIA N, NANDAKUMAR N. Crack growth resistance of hybrid fiber reinforced cement composites[J]. Cement and Concrete Composites, 2003, 25(1): 3-9.
[19]  BANTHIA N, TROTTIER J. Concrete reinforced with deformed steel fibers part Ⅱ: toughness characterisation[J]. ACI Materials Journal, 1995, 92(2): 146-154.
[20]  TROTTIER J, BANTHIA N. Toughness characterisation of steel-fiber reinforced concrete[J]. Journal of Materials in Civil Engineering, 1994, 6(2): 264-289.
[21]  CHEN Lian-rong, MINDESS S, MORGAN D R. Specimen geometry and toughness of steel-fiber reinforced concrete[J]. Journal of Materials in Civil Engineering, 1994, 6(4): 529-541.
[22]  BANTHIA N, TROTTIER J F. Deformed steel fiber―cementitious matrix bond under compact[J]. Cement and Concrete Research, 1991, 21(1): 158-168.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133