| 논문명 |
CSA에 의한 혼화재 사용 콘크리트의 초기품질 향상 / Early Quality Improvement of Concrete Incorporating CSA Admixture |
| 저자명 |
한천구(Han Cheon-Goo) ; 이문환(Lee Mun-Hwan) ; 박재명(Park Jae-Myoung) ; 裴長春(Pei Chang-Chun) |
| 발행사 |
대한건축학회 |
| 수록사항 |
대한건축학회논문집 구조계, v.22 n.4 (2006-04) |
| 페이지 |
시작페이지(127) 총페이지(8) |
| ISSN |
12269107 |
| 주제분류 |
재료 / 구조 |
| 주제어 |
CSA계 혼화재 ; 초기강도 ; 강도증진 ; 건조수축//CSA Type Admixture ; Early Strength ; Strength Development ; Drying Shrinkage |
| 요약1 |
본 연구에서는 고로슬래그 미분말, 석회석 미분말을 사용한 콘크리트의 응결지연 및 초기강도 저하를 개선할 목적으로, 응결촉진, 초기강도 발현에 효과가 예상되는 CSA의 종류 및 사용량을 변화시켜 초기품질향상정도에 대하여 검토하고자 한다. |
| 요약2 |
This study investigated early quality improvement of concrete, incorporating calcium-sulfa-aluminate (CSA), which alters the type and quantity, in order to enhance retarding of setting time and decrease of early strength, due to the use of blast furnace slag(BS) and limestone powder(LS). According to the test, incorporating ratio 4% of K1 and K2 exhibited favorable fluidity while only 1% of K3 showed. Air content and unit weight were not affected by CSA. Increase of incorporating ratio of CSA resulted in decrease of total amounts of bleeding, regardless of CSA type. The setting time of concrete was accelerated by more incorporating ratio of CSA. Overall, to secure 80% of the initial strength of concrete, 4% of K1 and K2 was needed while only 1% of K3 was used in this paper. For the properties of drying shrinkage, increase of CSA obviously decreased drying shrinkage, but more than 4% of K1, 2% of K2 and only 1% of K3 was needed to provide equal vale as OPC has. |
| 소장처 |
대한건축학회 |