DOI QR코드

DOI QR Code

Development and Property Analysis of Segregation-Reducing Type Flowing Concrete Using the Viscosity Agent

증점제를 이용한 분리저감형 유동화 콘크리트의 개발 및 그 특성분석

  • 한천구 (청주대학교 건축공학과 교수, 공박) ;
  • 강의영 (청주대학교 건축공학과) ;
  • 오선교 (청주대학교 건축공학과) ;
  • 반호용 (청주대학교 건축공학과 교수, 공박)
  • Published : 1999.08.01

Abstract

When superplasticizer is added to manufacture flowing concrete, the base concrete usually needs the adjustment to assure the sufficient fines contained to obtain flowable consistency without excessive bleeding or segregation. However, this may not only increase the cost, but also cause inconvenience in producing the base concrete. In this paper, the experiments are performed on normal base concrete to achieve a segregation-reducing flowing concrete by adding superplasticizer mixed with viscosity agents and AE admixtures. Three kinds of superplasticizer and two kinds of viscosity agent are selected. According to the results, with regard to the performance and cost of the admixtures, melamine type superplasticizer combined with the PEO viscosity agent and AE admixtures at the ratio 1:0.28:0.001 can acquire good quality and reduce the cost in producing the flowing concrete. With proper addition of combined superplasticizer, even though water to cement ratios of the base concrete are different, the segregation-reducing flowing concrete could be also achieved without reproportioning of the base concrete. However, it would be more desirable if the superplasticizer could be adjusted, before it is put into the practical use in order not to cause some other problems, such as rapid rate of slump loss and retarding of setting time.

Keywords

segregation-reducing type flowing concrete;viscosity agent;combined superplasticizer

References

  1. Properties of Concrete Adam M Neville
  2. 大韓建築學會論文集(構造系) v.14 no.12 분리저감형 유동화 콘크리트의 개발에 관한 실험연구 한천구;반호용;오선교
  3. 사단법인韓國産業標準協會 사단법인韓國産業標準協會
  4. 流動化コンクリ-トの技術の現況 日本建築學會 材料施工委員會 第 分科會.流動化コンクリ-ト硏究小委會
  5. コンクリ-トの組合設計指針.同解說 日本建築學會
  6. 工學碩士 學位論文, 淸州大學校 大學院 流動化 콘크리트의 效率的인 製造 및 活用方案에 관한 硏究 金鍾錫
  7. 大韓建築學會學術發表大會論文集 v.18 no.2 액상분리저감형 유동화제의 개발에 관한 실험적연구 전충근;강의영;오선교;한천구;반호용
  8. 建築工事標準示方書.同解說(JASS 5, 鐵筋コンクリ-ト工事) 日本建築學會
  9. 고성능유동화제를 이용한 고강도 콘크리트의 제조와 특성 및 활용 韓國콘크리트學會
  10. 콘크리트 혼합재료 韓國콘크리트學會
  11. 韓國콘크리트學會 學術發表論文集 v.8 no.2 流動化 콘크리트의 現場適用에 관한 實驗的 硏究 尹起源;李建哲;朴相俊;金鍾錫;韓千求;潘好鎔
  12. 建築工事 標準 示方書 大韓建築學會
  13. 工學碩士 學位論文, 淸州大學校 大學院 分離低減型 流動化 콘크리트의 開發에 관한 實驗的 硏究 姜毅榮
  14. 한국콘크리트학회 학술발표회 논문집 v.10 no.2 液狀 分離低減型 流動化劑의 實用化를 위한 基礎的 硏究 姜毅榮;全忠根;吳璇敎;韓千求;潘好鎔
  15. 한국콘크리트학회 학술발표회 논문집 v.10 no.1 고품질 현장 유동화 콘크리트 제조를 위한 유동화제 성능 개선에 관한 기초적 연구 강의영;한민철;오선교;한천구;반호용
  16. 콘크리트 標準 示方書 社團法人 大韓土木學會
  17. Chemical Admixtures for Concrete ACI
  18. 淸州大 産業科學硏究所 컨소시엄 세미나 流動化 콘크리트의 最適配合 및 特性 韓千求
  19. 流動化 콘크리트 施工指針(案)同解說 社團法人 大韓土木學會
  20. 流動化コンクリ-ト施工指針(案)同解說 日本建築學會