Proceedings of the Korea Concrete Institute Conference (한국콘크리트학회:학술대회논문집)

Korea Concrete Institute (한국콘크리트학회)
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Effect of Polycarboxylate Type Superplasticizer on the Rheological Properties of Mortar

고성능AE감수제를 이용한 모르타르의 유동특성 평가에 관한 연구

  • 정연식 (쌍용양회공업(주) 기술연구소 콘크리트연구실) ;
  • 임채용 (쌍용양회공업(주) 기술연구소 콘크리트연구실) ;
  • 양승규 (쌍용양회공업(주) 기술연구소 콘크리트연구실) ;
  • 엄태선 (쌍용양회공업(주) 기술연구소 콘크리트연구실) ;
  • 이종열 (쌍용양회공업(주) 기술연구소)
  • Published : 2006.11.04
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Abstract

Polycarboxylate type superplasticizers(PC) have got widely used for making not only high performance concrete but low grade concrete as well. It is known that fluidity of cement with PC is affected by the characteristics of cement especially sulphate ion concentration and hydration activity. But the characteristics of PC also affect the fluidity. The fluidity of cement mortar with various types of PC was measured and critical dosage(CD) and dispersing ability(DA) was calculated. CD and DA is strongly dependent on the type of PC. And the variation of fluidity on time was affected by the type of PC also. So, it is advisable to investigate the property of PC before production of concrete and adjust it to meet the requirements of concrete depending on the materials, the time of transport and so on.

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