Journal of the Architectural Institute of Korea Structure & Construction (대한건축학회논문집:구조계)

Architectural Institute of Korea (대한건축학회)
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Tensile and Adhesive Properties of Polymer Cement Mortar with EVA Emulsion, Blast-Furnace Slag and Fly Ash as a Repair Material

보수재료로서 EVA 에멀젼과 고로슬래그 미분말 및 플라이애쉬를 혼입한 폴리머 시멘트 모르타르의 인장·접착특성

  • Jo, Young-Kug (Department of Architectural Engineering, Chungwoon University)
  • Received : 2019.08.06
  • Accepted : 2019.10.18
  • Published : 2019.11.30
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Abstract

The purpose of this study is to evaluate the effect of admixtures as blast-furnace slag(BF) and fly ash(FA) on tensile and adhesive properties of polymer cement mortar(PCM) with EVA emulsion. The test specimens are prepared with five polymer-cement ratio(P/C) and five admixture contents, and tested for tensile strength and adhesion in tension. From the test results, the tensile strength and adhesion in tension could be improved by an appropriate combination of P/C and admixture contents. In particular, the maximum of tensile strength of PCM with P/C 10% and BF content of 10% is 4.70MPa which is about 1.55 times higher than that of plain mortar, and about 1.22 times that of PCM that does not contain any mixture. The ratio of adhesion in tension to tensile strength of PCM with admixtures averaged 55.8%. It is also apparent that admixture contents of 5% or 10% could be proposed for improvement of tensile strength and adhesion in tension of PCM.

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References

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