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工业建筑  2007 

钢纤维对高性能混凝土弯曲韧性和断裂能影响的试验

DOI: 10.13204/j.gyjz200705017, PP. 65-68

Keywords: 钢纤维高性能混凝土,纤维掺量,纤维类型,弯曲韧性,断裂能

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Abstract:

参照国际材料与结构联合会标准(RILEM),对钢纤维高性能混凝土开口梁进行三点弯曲试验。试验结果表明,钢纤维类型和掺量均为影响高性能混凝土弯曲韧性和断裂能的重要因素。高性能混凝土的能量吸收能力和断裂能随纤维掺量的提高而提高;与低强凸痕型钢纤维相比,端部带弯钩的高强钢纤维对高性能混凝土弯曲韧性和断裂能的提高效果更为显著。综合利用断裂能和弯曲韧性指标,才能更全面地描述混凝土在弯曲过程中的受力与破坏特征。

References

[1]  Jeng F,Lin M L,Yuan S C.Performance of Toughness Indices for Steel Fiber Reinforced Shotcrete.Tunneling and Underground Space Technology,2002,17(1):69-82
[2]  王成启,吴科如.钢纤维和碳纤维混凝土力学性能的研究.建筑材料学报,2003,6(3):253-256
[3]  朱海堂,高丹盈,谢丽,等.钢纤维高强混凝土弯曲韧性的研究.硅酸盐学报,2004,32(5):656-660
[4]  RILEM TC 162-TDF:Test and Design Methods for Steel Fiber Reinforced Concrete--Bending Test.Materials and Structures/Matériaux et Constructions,2002,35:579-582
[5]  RILEM Draft Recommendation TC50-FCM:Determination of Fracture Energy of Mortar and Concrete by Means of Three Point Bend Tests on Notched Beams.Materials and Structures,1985,106(18):285-290
[6]  EFNARC Specification and Guidelines for Self-Compacting Concrete
[7]  ASTM C1018 Standard Test Method for Flexural Toughness and First Crack Strength of Fiber Reinforced Concrete
[8]  JSCE-G 552-1999 The Method for Bending Strength and Bend Toughness of Steel Fiber Reinforced Concrete
[9]  Hillerborg A.The Theoretical Basis of a Method to Determine the Fracture Energy GF of Concrete.Materials & Structures,1985,106(18):291-296
[10]  田稳苓,黄承逵,李子祥.异形钢纤维粘结机理研究.混凝土与水泥制品,2000(增刊):23-25

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