Adhesion Strength and other Mechanical Properties of SBR Modified Concrete


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Title: Adhesion Strength and other Mechanical Properties of SBR Modified Concrete

Author(s): Bogumila Chmielewska

Publication: IJCSM

Volume: 2

Issue: 1

Appears on pages(s): 3-8

Keywords: concrete; polymer modification; fracture; strength; adhesion; repairs

Date: 6/30/2008

Polymer-cement composites are known repair materials. The aim of this work is to investigate the influence of various amount of carboxylated styren-butadien dispersion on the selected mechanical properties of polymer-cement concrete (PCC) and on its adhesion to ordinary concrete. The compressive, flexural and tensile strengths as well as frost resistance and fracture resistance of the composites are tested. Adhesion strength of PCC to ordinary concrete, as one of most important performance of good repair material is evaluated and analyzed using three test methods. The results obtained in standard pull-off test are compared with the two other tests. The first one, which is an adaptation of WST (wedge splitting test) characterizes crack propagation in the plane of bond created during repair. In the second test the resistance to shear is a measure of adhesion strength.

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