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

  • 제35권12호
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  • Pages.157-164
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  • 2019
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  • 1226-9107(pISSN)
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  • 2384-1788(eISSN)
대한건축학회 (Architectural Institute of Korea)
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DOI QR코드

DOI QR Code

고흡수성수지와 팽창재 동시 혼입 시 고강도 모르타르의 수축거동에 미치는 영향

Effect of Combined Superabsorbent Polymers and Expansion Agent on Shrinkage Behavior of High Strength Mortar

  • 투고 : 2019.09.17
  • 심사 : 2019.11.28
  • 발행 : 2019.12.30
⟨ 이전 논문 다음 논문 ⟩

초록

Superabsorbent polymers(SAPs) are powdery material that absorb water several tens or hundreds of times its own mass. It has been reported that when SAPs are incorporated into a high strength cementitious material, the autogenous shrinkage of the material is reduced. Cross-linked sodium polyacrylate type SAPs are relatively safe for human body and low in production cost. In order to apply this type of SAPs to the admixture for total(plastic+autogenous+drying) shrinkage reduction of high strength mortar, the shrinkage behavior of mortar when an expansion agent(EA) and SAPs were mixed together was analyzed. As a result, it was found that the shrinkage was reduced when an EA 5% (mass % of cement) and SAPs 0.4% were mixed together than the mortar containing only an EA 10%. The shrinkage was further reduced when EA 10% and SAPs 0.4% were incorporated into mortar.

키워드

과제정보

연구 과제 주관 기관 : LG화학

이 연구는 2015년도 LG화학 연구비 지원에 의한 결과의 일부임.

참고문헌

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