| 논문명 |
액상형 조강제의 구성성분별 시멘트 모르타르에 미치는 영향 / The Effect of Ingredients of Liquid Accelerating Agent on Cement Mortar |
| 저자명 |
이문환(Lee, Mun-Hwan) ; 송영찬( Song, Young-Chan) |
| 발행사 |
대한건축학회 |
| 수록사항 |
대한건축학회논문집 구조계, v.23 n.11 (2007-11) |
| 페이지 |
시작페이지(93) 총페이지(8) |
| ISSN |
12269107 |
| 주제분류 |
재료 |
| 주제어 |
액상형 조강제 ; 초기강도 ; 촉진제 ; 3성분계 결합재 ; 레미콘//Liquid Additive ; Early Strength ; Accelerating Agent ; Ternary Blended Binder ; Ready Mixed Concrete |
| 요약1 |
본 연구에서는 3성분계 콘크리트의 초기강도를 증진시키기 위해 개발 중인 액상형 조강제 원료 각각의 구성성분이 콘크리트에 미치는 영향을 관찰할 수 있도록 모르타르 매트릭스 기반에서 투입 원료의 조성을 변동시켜 유동성 및 강도특성의 반응도 결과를 검증하고자 하였다. |
| 요약2 |
Ternary blended concrete which is made of OPC mixed with fly ash and blast-furnace slag has the critical defect that construction schedule is delayed by deterioration of early strength when applied in construction site.In this study, fundamental properties are experimented and investigated to verified functions of each ingredients based on mortar matrix with more sensitivity for liquid accelerating agent which is developed to protect deterioration of early strength of ternary blended concrete.The result is as follow. 1) Although it is predominant to secure early strength by accelerating source, using accelerating source separately is awkward to improve strength because of its marked slump loss and deterioration of strength caused by coarse C-S-H Type Ⅱ formed after early age. 2) Due to improvement of flowability by promoting ettringite formation, SO4 source is necessary for accelerating source, although it has no efficacy to improve strength. 3) Si source shows effect to improve early strength of pozzolanic materials like blast-furnace slag powder or fly ash by accelerating alkali atmosphere during hydration and it also shows strength improvement after early age. |
| 소장처 |
대한건축학회 |