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Admixture for recycled aggregate concrete and recycled aggregate concrete composition comprising thereof
The present invention relates to an admixture for recycled aggregate concrete including a dispersing agent, a retaining agent, a thickening agent, and a shrinkage reducing agent, wherein the weight ratio of the dispersing agent, the retaining agent, and the thickening agent is 50 to 70 : 30 to 50 : 3 to 15, and the weight percent of the shrinkage reducing agent is 10 to 20 wt% relative to the weight sum of the dispersing agent, the retaining agent, and the thickening agent. The admixture for recycled aggregate concrete can exhibit high physical property retention, sufficiently maintain compressive strength, and suppress the occurrence of cracks in buildings by suppressing drying shrinkage after placing.
본 발명은, 분산제, 유지제, 증점제 및 수축저감제를 포함하는 순환골재 콘크리트용 혼화제에 관한 것으로, 상기 분산제:유지제:증점제의 중량 비는 50 내지 70 : 30 내지 50 : 3 내지 15이며, 상기 수축저감제의 중량%는 분산제, 유지제 및 증점제의 중량합 대비 10 내지 20중량%인 것을 특징으로 한다. 이러한 순환골재 콘크리트용 혼화제는 높은 물성 유지력을 나타낼 수 있고, 압축강도를 충분하게 유지시킬 수 있으며, 타설 후 건조수축을 억제하여 건축물 균열 발생을 억제할 수 있다.
Admixture for recycled aggregate concrete and recycled aggregate concrete composition comprising thereof
The present invention relates to an admixture for recycled aggregate concrete including a dispersing agent, a retaining agent, a thickening agent, and a shrinkage reducing agent, wherein the weight ratio of the dispersing agent, the retaining agent, and the thickening agent is 50 to 70 : 30 to 50 : 3 to 15, and the weight percent of the shrinkage reducing agent is 10 to 20 wt% relative to the weight sum of the dispersing agent, the retaining agent, and the thickening agent. The admixture for recycled aggregate concrete can exhibit high physical property retention, sufficiently maintain compressive strength, and suppress the occurrence of cracks in buildings by suppressing drying shrinkage after placing.
본 발명은, 분산제, 유지제, 증점제 및 수축저감제를 포함하는 순환골재 콘크리트용 혼화제에 관한 것으로, 상기 분산제:유지제:증점제의 중량 비는 50 내지 70 : 30 내지 50 : 3 내지 15이며, 상기 수축저감제의 중량%는 분산제, 유지제 및 증점제의 중량합 대비 10 내지 20중량%인 것을 특징으로 한다. 이러한 순환골재 콘크리트용 혼화제는 높은 물성 유지력을 나타낼 수 있고, 압축강도를 충분하게 유지시킬 수 있으며, 타설 후 건조수축을 억제하여 건축물 균열 발생을 억제할 수 있다.
Admixture for recycled aggregate concrete and recycled aggregate concrete composition comprising thereof
순환골재 콘크리트용 혼화제 및 이를 포함하는 순환골재 콘크리트 조성물
JIN BO KYUNG (author) / KIM JUNG HO (author)
2022-07-05
Patent
Electronic Resource
Korean
IPC:
C04B
Kalk
,
LIME
European Patent Office | 2023
| Springer Verlag | 2017
British Library Online Contents | 2005