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Tensile Testing of Fiber Reinforced Cementitious Composites

Published online by Cambridge University Press:  16 February 2011

Tahar El-Korchi ,
Houssam Toutanji ,
R. Nathan Katz ,
Gary L. Leatherman ,
Harald Lucas  and
Cornelia Demers
Tahar El-Korchi
Affiliation:
Worcester Polytechnic Institute, Worcester, MA. 01609
Houssam Toutanji
Affiliation:
Worcester Polytechnic Institute, Worcester, MA. 01609
R. Nathan Katz
Affiliation:
Worcester Polytechnic Institute, Worcester, MA. 01609
Gary L. Leatherman
Affiliation:
Worcester Polytechnic Institute, Worcester, MA. 01609
Harald Lucas
Affiliation:
Worcester Polytechnic Institute, Worcester, MA. 01609
Cornelia Demers
Affiliation:
Worcester Polytechnic Institute, Worcester, MA. 01609
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Abstract

A novel approach in tensile testing of cementitious composites using the ASCERA® hydraulic tensile tester is described. The test specimens are cylindrical bars. Steel pistons are adhesively bonded on either end of the specimens and inserted in a pressure chamber. The pressure is increased until the specimen is pulled apart by the hydraulic pressure exerted on the pistons.

Advantages of this method are: large volume under load, self-alignment to minimize externally applied bending moments, and determination of the rupture stress exactly at the fracture initiation point.

Glass reinforced cementitious composites were tested. Results are discussed with respect to curing time and fiber volume fraction. The tensile strength values obtained by hydraulic testing are compared to values obtained by traditional uniaxial tensile strength tests. A biaxial model is adopted to verify the results.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 211: Symposium O – Fiber-Reinforced Cementitious Materials , 1990 , 221
Copyright
Copyright © Materials Research Society 1991

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References

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