Journal of the Korea institute for structural maintenance and inspection (한국구조물진단유지관리공학회 논문집)

Korea Institute for Structural Maintenance Inspection (한국구조물진단유지관리공학회)
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A Study on the Improvement of Early-age Compressive Strength of Smart BFS Powder Added Cement Mortar

스마트 고로슬래그 미분말을 첨가한 시멘트 모르타르의 초기 압축강도 향상에 관한 연구

  • 이성태 (인하공업전문대학 토목환경과) ;
  • 노재호 ((주)제이엔티아이엔씨) ;
  • 김진형 (한양대학교 건축환경공학전공) ;
  • 이강진 (영진글로벌(주) 기술연구소)
  • Received : 2012.12.28
  • Accepted : 2013.01.28
  • Published : 2013.03.30
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Abstract

In this study, to improve the early-age compressive strength of mortar, the compressive strength tests of mortar mixed smart BFS powder added powder of rapid setting additives milled by processing, using functional grinding aid, the power-typed rapid setting cement clinker developed by sintering industrial waste and by-products with much CaO-$SiO_2-Al_2O_3$ to cement were performed. From the tests, the followings are found that (1) for BFS early-age strength improvement test (Series I): early-age strength improvement of BFS mixed rapid setting additive milled after adding functional grinding aid, when the clinker is milled, is superior and (2) for OPC early-age strength improvement test (Series II): case of additive mixed rapid setting powder typed activator milled after adding functional grinding aid to Clinker-C showed the higher compressive strength.

본 연구에서는 CaO-$SiO_2-Al_2O_3$가 다량 함유된 산업폐기물과 산업부산물을 소성하여 개발한 분말형 속경성 분말을 초기강도의 향상을 위해 기능성 분쇄조제로 처리하여 분쇄한 속경성 미분말을 제조하였다. 이렇게 제조된 미분말을 BFS 분말과 일정비율로 혼합한 후, 시멘트에 첨가하여 모르타르 압축강도 실험을 실시하였다. 그 결과 BFS 조기강도 향상 실험 (Series I)에서는 클링커 분쇄시 기능성 분쇄조제가 첨가되어 분쇄된 속경재가 혼합된 BFS의 초기강도 발현이 우수하며 OPC 조기강도 향상 실험 (Series II)에서는 Clinker-C에 본 실험의 기능성 분쇄조제가 첨가되어 분쇄된 속경성의 분말형 자극제가 첨가된 경우에 가장 압축강도가 높은 사실을 알 수 있었다.

Keywords

References

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