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석회석미분말을 함유한 친환경 시멘트콘크리트의 도로포장 적용을 위한 기초 연구
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  • 석회석미분말을 함유한 친환경 시멘트콘크리트의 도로포장 적용을 위한 기초 연구
저자명
최우현,박철우,정원경,김기헌,Choi. Woo-Hyeon,Park. Cheol-Woo,Jung. Won-Kyong,Kim. Ki-Heon
간행물명
한국도로학회논문집
권/호정보
2012년|14권 4호|pp.37-49 (13 pages)
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한국도로학회
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정기간행물|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

PURPOSES : This study is to investigate the fundamental properties of limestone added cement concrete for application of pavement. METHODS : As the production of Portland cement causes environmental problems, engineers have sought more environment-friendly concrete construction materials. Limestone powder can be used for concrete as a partial replacement of Portland cement. One of the great applications of limestone powder added cement concrete might be a cement concrete pavement since the concrete pavement consumes massive quantity of Portland cement. Experimental variables were different replacement level of limestone powder by 0% to 25% with 5% increment. Before hardening of fresh concrete, setting time and plastic shrinkage characteristics were investigated in addition to other basic properties. Properties of hardened concrete included compressive, tensile and flexural strength as well as drying shrinkage. RESULTS : The addition of limestone powder did not significantly affect the properties of fresh concrete. Strength deceased as the replacement ratio increased and when the replacement ratio was greater than 10% decrease rate increased. CONCLUSIONS : It was found that the partial replacement of the limestone powder to cement in pavement materials can be positively considered as its mechanical properties show comparable performance to those normal concrete.