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A platform for research: civil engineering, architecture and urbanism
27MPa Concrete Composition having Recycled Coarse Aggregates with Lime Stone Powder and Magnetite Powder
The present invention relates to a concrete composition having recycled coarse aggregates, which is used in the frame construction of buildings and, more particularly, to a "27 MPa-level concrete composition having recycled coarse aggregates and using magnetite powder and limestone powder as an admixture". The 27 MPa-level concrete composition comprises: natural fine aggregates; natural coarse aggregates; recycled coarse aggregates; and a binder. When the total content of coarse aggregates is 100 wt%, 60 wt% of the recycled coarse aggregates are included, and 40 wt% of the natural coarse aggregates are included. When the total content of the binder is 100 wt%, 75 wt% of cement, 7.5 to 10 wt% of blast furnace slag powder, 5 to 7.5 wt% of fly ash, 2.5 to 5 wt% of magnetite powder, and 5 to 10 wt% of limestone powder are included. Therefore, improved initial strength and improved slump characteristics can be exhibited.
본 발명은 순환 굵은 골재를 포함하며 건축물의 골조 공사에 사용되는 콘크리트 조성물로서, 천연 잔골재와, 천연 굵은 골재와, 순환 굵은 골재와, 바인더를 포함하되, 굵은 골재의 총 함유량을 100중량%라고 할 때 순환 굵은 골재는 60중량%로 포함되고 천연 굵은 골재는 40중량%로 포함되며; 바인더의 총 함유량을 100중량%라고 할 때 시멘트는 75중량%, 고로 슬래그 미분말은 7.5 내지 10중량%, 플라이애시는 5 내지 7.5중량%, 자철광 미분말은 2.5 내지 5중량% 및 석회석 미분말은 5 내지 10중량%로 포함된 바인더를 포함하므로써, 향상된 초기 강도의 발현과 개선된 슬럼프 특성을 발휘하게 되는 "자철광 미분말과 석회석 미분말을 혼화재로 사용한 27MPa급 순환 굵은 골재 콘크리트 조성물"에 관한 것이다.
27MPa Concrete Composition having Recycled Coarse Aggregates with Lime Stone Powder and Magnetite Powder
The present invention relates to a concrete composition having recycled coarse aggregates, which is used in the frame construction of buildings and, more particularly, to a "27 MPa-level concrete composition having recycled coarse aggregates and using magnetite powder and limestone powder as an admixture". The 27 MPa-level concrete composition comprises: natural fine aggregates; natural coarse aggregates; recycled coarse aggregates; and a binder. When the total content of coarse aggregates is 100 wt%, 60 wt% of the recycled coarse aggregates are included, and 40 wt% of the natural coarse aggregates are included. When the total content of the binder is 100 wt%, 75 wt% of cement, 7.5 to 10 wt% of blast furnace slag powder, 5 to 7.5 wt% of fly ash, 2.5 to 5 wt% of magnetite powder, and 5 to 10 wt% of limestone powder are included. Therefore, improved initial strength and improved slump characteristics can be exhibited.
본 발명은 순환 굵은 골재를 포함하며 건축물의 골조 공사에 사용되는 콘크리트 조성물로서, 천연 잔골재와, 천연 굵은 골재와, 순환 굵은 골재와, 바인더를 포함하되, 굵은 골재의 총 함유량을 100중량%라고 할 때 순환 굵은 골재는 60중량%로 포함되고 천연 굵은 골재는 40중량%로 포함되며; 바인더의 총 함유량을 100중량%라고 할 때 시멘트는 75중량%, 고로 슬래그 미분말은 7.5 내지 10중량%, 플라이애시는 5 내지 7.5중량%, 자철광 미분말은 2.5 내지 5중량% 및 석회석 미분말은 5 내지 10중량%로 포함된 바인더를 포함하므로써, 향상된 초기 강도의 발현과 개선된 슬럼프 특성을 발휘하게 되는 "자철광 미분말과 석회석 미분말을 혼화재로 사용한 27MPa급 순환 굵은 골재 콘크리트 조성물"에 관한 것이다.
27MPa Concrete Composition having Recycled Coarse Aggregates with Lime Stone Powder and Magnetite Powder
자철광 미분말과 석회석 미분말을 혼화재로 사용한 27MPa급 순환 굵은 골재 콘크리트 조성물
WON YONG HAN (author)
2023-01-12
Patent
Electronic Resource
Korean
IPC:
C04B
Kalk
,
LIME
24MPa 24MPa Concrete Composition having Recycled Coarse Aggregates without Recycled Fine Aggregates
| European Patent Office | 2022
| British Library Online Contents | 2014
| British Library Online Contents | 2014