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Experiment on Mechanical Properties of High-performance Concrete with Different Fibers(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2008年01期
Page:
43-48
Research Field:
Publishing date:
2008-03-20

Info

Title:
Experiment on Mechanical Properties of High-performance Concrete with Different Fibers
Author(s):
GAO Xiang-ling LI Jie
Department of Architectural Engineering, Tongji University, Shanghai 200092, China
Keywords:
fiber high-performance concrete compressive strength tensile strength elastic modulus mechanical property
PACS:
TU502.6
DOI:
-
Abstract:
The effect of three obvious different kinds of fibers on the mechanical properties of high-performance concrete was studied by the test. The compressive strength, splitting tensile strength and elastic modulus of the concrete were tested when steel, polypropylene and hybrid steel fiber were added to concrete respectively. The results indicate that the high elastic modulus of steel fibers with 0.5% volume fraction will raise the strength and elastic modulus of concrete. When 0.3% carbon-steel fibers and 0.2% carbon fibers are added to concrete, the incremental range of the tensile strength is bigger than that of the compressive strength. For the improvement of the concrete elastic modulus, the effect of 0.5% steel fibers of HPC-2 concrete is the most obvious, which is increased 6.5% than basic concrete. The elastic modulus of HPC-3 concrete by adding 0.2% polypropylene fiber is the least, which is smaller than basic concrete. Moreover, the elastic modulus of fiber and tensile strength have direct effects on the compressive strength of concrete. The magnitude of ratio between the fiber elastic modulus and the concrete elastic modulus has direct effect on that of the fiber reinforced concrete.

References:

[1] PAULA R,LEENA S.Microstructure of Fiber Mortar Composites Under Fire Impact-effect of Polypropylene and Polyacrylonitrile Fibers[J].Cement and Concrete Research,1994,24(5):896-906.
[2]ALLAN M L,KUKACKA L E.Permeability and Microstructure of Plain and Polypropylene Fiber Reinforced Grouts[J].Cement and Concrete Research,1994,24(4):671-681.
[3]LOWELL Y,THOMAS M W,ROBERT D.Bond Strength of Mild Steel in Polypropylene Fiber Reinforced Concrete[J].ACI J,1985,82(1):40-45.
[4]PARK S B,LEE B L,LIM Y S.Experimental Study on the Engineering Properties of Carbon Fiber Reinforced Cement Composites[J].Cement and Concrete Research,1991,21(3):589-600.
[5]KATZ A,BENTUR A.Mechanical Properties and Pore Structure of Carbon Fiber Reinforced Cementations Composites[J].Cement and Concrete Research,1994,24(2):214-220.
[6]QIAN C X,STROEVEN P.Development of Hybrid Polypropylene-steel Fiber-reinforced Concrete[J].Cement and Concrete Research,2000,20(1):63-69.
[7]JOHN S L,DAVIDE Z,SURENDRA P S.Permeability of Cracked Hybrid Fiber-reinforced Mortar Under Load[J].ACI Materials Journal,2002,99(2):379-385.
[8]YAO Wu,LI Jie,WU Ke-ru.Mechanical Properties of Hybrid Fiber-reinforced Concrete at Low Fiber Volume Fraction[J].Cement and Concrete Research,2002,32(1):27-30.
[9]NEMKUMAR B,VIVEK B.Repairing with Hybrid-fiber-reinforced Concrete[J].Concrete International,2001,23(6):29-33.
[10]胡金生,杨秀敏,周早生,等.钢纤维混凝土与聚丙烯纤维混凝土材料冲击荷载下纤维增韧特性试验研究[J].建筑结构学报,2005,26(2):101-105. HU Jin-sheng,YANG Xiu-min,ZHOU Zao-sheng,et al.Experimental Study on Tenacity Increase Characteristics of Steel Fiber Reinforced Concrete and Polypropylene Fiber Reinforced Concrete Under Impact Load[J].Journal of Building Structures,2005,26(2):101-105.

Memo

Memo:
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Last Update: 2008-03-20