Effect of Different Matrix Compositions and Micro Steel Fibers on Tensile Behavior of Textile Reinforced Concrete

FIBRE CONCRETE 2017

Esmaeili, J.^1 ; Sharifi, I.^1 ; Andalibi, K.^1 ; Kasaei, J.^1

Department of Civil Engineering, University of Tabriz, Iran^1

关键词: Direct tensile test;    Matrix composition;    Polymer based composite;    Strain hardening behavior;    Stress-strain behaviors;    Tensile behaviors;    Textile reinforced concretes;    Ultimate tensile strength;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/246/1/012031/pdf
DOI  :  10.1088/1757-899X/246/1/012031

来源: IOP

【 摘 要 】

This paper presents results of a research on uniaxial tensile behavior of textile reinforced concrete (TRC) prepared with different matrix compositions containing different contents of micro steel fibers. TRC exhibits very favorable stress-strain behavior, high Load-carrying capacity and a certain ductility which results in a strain-hardening behavior. At this paper, different Glass-TRCs were prepared using different commonly used normal and also innovative matrix compositions containing different volume fractions of micro steel fibers. Three commonly used matrices, a polymer-based composite and also a UHPC mixture were prepared containing different percentages of micro steel fibers. The direct tensile tests were applied on all specimens to study the tensile properties (first crack stress and ultimate tensile strength) and strain-hardening behavior. Considering the stress-strain curves of all specimens, it has been found that the tensile properties and strain-hardening behavior of Glass-TRC can be considerably improved by using steel micro fibers in an appropriate matrix composition.