AN EXPERIMENTAL STUDY ON THE PROPERTIES & APPLICATION FOR FLY ASH OF CONBINED HEAT POWER PLANT - FOCUSSED HIGH STRENGTH CONCRETE -

열병합발전소 플라이애쉬의 특성 및 활용방안에 관한 실험적 연구 -고강도 콘크리트를 중심으로-

  • 권영호 ((주)대우건설기술연구소) ;
  • 백명종 ((주)대우건설기술연구소 연구원) ;
  • 이보근 ((주)대우건설기술연구소) ;
  • 박칠림 ((주)대우건설기술연구소 소장(전무))
  • Published : 1994.10.01

Abstract

This study dealt with the properties for fly ash of conbined heat power plant and application for concrete industry. For this purpose, fly ash sampled Ulsan conbined heat power plant and analyzed for physical and chemical properties. As analyzed results of fly ash, contents of $SiO_ and Al_O_ $in the fly ash of Ulsan were less than those of Thermo-electric power plant(Boryuing), but contents of CaO were tem times as much as those of Boryung, because of these differences, it is expected that pozzolanic activity of concrete using fly ash of Ulsan will be different from another fly ash. Concrete specimens were tested to evaluate concrete preformance when 10 to 50 percent of the portland cement by weight in the concrete mix was replaced with fly ash of conbined heat power plant. As test results, workability and consideration in the fresh concrete were increased and concrete strength was showed more than 400kg/$\textrm{cm}^2$ for the required age. This study would be provided valuable data for the practical utilization of fly ash(conbined heat power plant). In the future, properties of fly ash concrete including long term strength, elapsed time, pozzolanic activity, modulus of elasticity, sulfate resistance, shrinkage, freeze-thaw durability and so on will be studied.

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