Erosion Resistance Evaluation of High-Strength SCC

고강도 고유동 콘크리트의 침식 저항성

  • 최석환 (국민대학교 건설시스템공학부) ;
  • 이재문 (국민대학교 건설시스템공학부) ;
  • 한만엽 (아주대학교 환경건설교통공학부) ;
  • 하재담 (쌍용기술연구소)
  • Published : 2006.05.11

Abstract

Damage of hydraulic concrete structures by the abrasion and erosion process is very severe and it indicates that the necessity of considering the influence of this process while designing concrete mixtures. Abrasion wear of concrete in hydraulic structures is caused by the movement of particles, water-borne debris. The resistance against erosion for high-strength self-consolidating concrete(SCC) was examined in this paper. A newly designed testing method is presented in order to quantitatively estimate the erosion of concrete. It was shown that loss of volume in abraded concrete can be explained as function of material parameters such as the amount of fly ash and blast furnace slag. Those admixtures have been widely used to reduce heat of hydration and improve resistance against sulfate attack. The results of current study can be used as a guideline in selecting the composition of concrete exposed to abrasion-wear.

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