Strength Properties of Combined Wet/Dry-Cured SBR-Modified Concretes Using Ground Granulated Blast-Furnace Slag

Abstract

The effects of slag content and polymer-binder ratio on the strength properties of combined wet/dry-cured polymer-modified concretes using ground granulated blastfurnace slag (slag) and a styrene-butadiene rubber (SBR) latex are examined. As a result, the compressive, tensile and flexural strengths of the combined wet/dry-cured SBRmodified concretes using slag increase with increasing polymer-binder ratio, and reach maximums at a slag content of 40%. Such high strength development is attributed to the high tensile strength of SBR polymer and the improved bond between cement hydrates and aggregates because of the incorporation of SBR latex.