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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:

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Memo

Memo:
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Last Update: 2008-03-20