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초속경 무수축 모르터를 사용한 궤도 자갈도상의 콘크리트화에 대한 연구
정양욱,심낙훈,박영석 명지대학교 산업기술연구소 2001 産業技術硏究所論文集 Vol.20 No.-
Recently, the use of concrete structures has caused renewed interest in behavior of reinforced and prestressed concrete structures subjected to cyclic loading. As a result of these innovative concrete constructions, many of the special considerations concerning fatigue of concrete structures are now being addressed. Concrete structures subjected to a large number of repeated loading will experience an increase in deflections and crack-width. This study presents the stability and serviceability of the railway slab structure when the coarse aggregates are mixed with Rapid Hardening Mortar. Flow test, uniaxial compression test, and concrete4 fatigue test are performed in the laboratory. The tests results show that initial strength of Rapid Hardening Mortar is superior to regular mortar and strengthening effect of Rapid Hardening Mortar mixed with coarse aggregates is excellent when it will be applied to the used railway structure.