Strength-based Evaluation of CO2 Emission for Cement and Composite Containing Mechanically Sctivated Fly Ash

물리적으로 활성화된 플라이애쉬를 함유한 시멘트 및 복합체의 이산화탄소 배출량 평가

  • 순양 (한양대학교 스마트시티공학과) ;
  • 이한승 (한양대학교 건축학부)
  • Published : 2021.05.20

Abstract

Fly ash, has been widely used as one of the main supplementary cementitious materials (SCMs) in the world, to replace part of cement to significantly save energy and reduce greenhouse emission. Via mechanical activation, fly ash can replace more cement without impairing early age compressive strength. This study focuses on the strength-based evaluation of carbon dioxide emission for blended cement composite containing mechanically activated fly ash. Results indicate that under similar compressive strength, a prominent drop has been witnessed in embodied energy of binary cement and CO2 emission of the composite containing mechanically activated fly ash compared with those containing ordinary fly ash.

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Acknowledgement

This research was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (No. 2015R1A5A1037548).