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Title |
Strength Properties of SBR-Modified Concretes Using Ground Granulated Blast-Furnace Slag
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Keywords |
폴리머 시멘트 콘크리트; 폴리머-결합재비; 고로슬래그 치환율; 강도; SBR라텍스; polymer-modified concrete; polymer-hinder ratio; slag content; strength styrene-butadiene rubber(SBR) latex |
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Abstract |
The effects of slag content and polymer-binder ratio on the strength properties of the polymer-modified concretes using ground granulated blast-furnace slag and a styrene-butadiene rubber (SBR) latex are examined. As a result, the compressive, tensile and flexural strengths of the SBR-modified concretes using slag increase with increasing polymer-binder ratio and slag content, and maximized at a slag content of 40 ％. In particular, the SBR-modified concretes with a slag content of 40 ％ provide approximately two times higher tensile and flexural strengths than unmodified concretes. 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 addition of SBR latex.
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