A Fundamental Study for the Practical Use of Liquid Segregation Reducing Type Superplasticizer

액상 분리저감형 유동화제의 실용화를 위한 기초적 연구

  • 진의영 (청주대 건축공학과 대학원) ;
  • 전충근 (청주대 건축공학과 대학원) ;
  • 오선교 (청주대 건축공학과 대학원, 박사과정, 선종합건축설계사무소 소장) ;
  • 한천구 (청주대 건축공학과 교수, 공학) ;
  • 반호영 (청주대 건축공학과 교수, 공학)
  • Published : 1998.10.01

Abstract

Usually the flowing concrete manufactured upon normal-mixed base concrete would segregate due to the less of fine particle content. In the previous studies, a new type admixture(liquid segregation reducing type superplasticizer) has been developed to prevent such segregation without modification of base concrete mixture. In this study, the tests are performed in laboratory to evaluate the admixture by analyzing the properties of flowing concrete with different water to cement ratios, so that it could be used in the fields. According to the results, this kind of superplasticizer could improve the fluidity of concrete without causing segregation. However, it seems to be more desirable of the superplasticizer could be adjusted, before it is put into the practical use, not to cause some other problems such as rapid rate of slump and air loss and retarding of setting time.

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