KR101390132B1 - 1종 조강형 시멘트를 사용한 고강도 콘크리트 조성물 및 콘크리트 - Google Patents
1종 조강형 시멘트를 사용한 고강도 콘크리트 조성물 및 콘크리트 Download PDFInfo
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- 239000011372 high-strength concrete Substances 0.000 title claims abstract description 25
- 239000011398 Portland cement Substances 0.000 title description 3
- 239000004568 cement Substances 0.000 claims abstract description 48
- 239000004567 concrete Substances 0.000 claims abstract description 31
- 239000000843 powder Substances 0.000 claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/141—Slags
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/08—Flue dust, i.e. fly ash
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00068—Mortar or concrete mixtures with an unusual water/cement ratio
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- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/05—Materials having an early high strength, e.g. allowing fast demoulding or formless casting
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
- C04B2201/52—High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
도 1은 본 발명의 100MPa 고강도 콘크리트의 슬럼프 플로우 실험사진.
도 2는 본 발명의 실험방법에 따라 콘크리트 시험체를 시험하기 전,후의 모습을 도시한 사진.
도 3은 본 발명의 1종 조강형 시멘트를 사용한 고강도 콘크리트로 만든 시험체의 구성 및 온도측정 취치를 나타낸 수직단면도와 수평단면도.
시험요인 | 시험수준 | 평가항목 |
비교예 | 시중유통 고강도 배합(60,80,100MPa) | 조기강도(양생조건20℃) 장기강도 |
실시예 | 1종조강형시멘트Base고강도배합(60,80,100MPa) |
구분(MPa) |
W/B (%) |
S/a (%) |
단위재료량(kg/㎥) | |||||||||
W | C1 | C2 | BFS | FA | SF | Ω | S | G | ||||
비교예 |
60 | 26.2 | 46.0 | 163 | 392 | | 180 | 50 | | | 715 | 849 |
80 | 23.3 | 45.2 | 163 | 399 | | 210 | 56 | | 35 | 670 | 822 | |
100-1 | 20.3 | 36.5 | 163 | 418 | | 257 | 64 | | 64 | 507 | 899 | |
100-2 | 20.3 | 35.6 | 163 | 418 | | 257 | 64 | 64 | | 488 | 900 | |
실시예 | 60 | 28.5 | 47.5 | 163 | | 360 | 166 | 46 | | | 759 | 849 |
80 | 25.1 | 46.8 | 163 | | 403 | 195 | 52 | | | 716 | 823 | |
100 | 20.9 | 37.0 | 163 | | 406 | 312 | 62 | | | 522 | 899 |
설계강도 (MPa) |
수준 |
압축강도(MPa) | |||||
18Hr | 24Hr | 3d | 7d | 28d | 56d | ||
60 |
비교예 | 6.1 | 19.1 | 42.0 | 68.7 | 81.4 | |
실시예 | 19.2 | 28.4 | 42.2 | 68.7 | 81.4 | ||
80 |
비교예 | 4.7 | 17.5 | 51.9 | 82.2 | 86.6 | |
실시예 | 24.3 | 34.3 | 52.4 | 81.1 | 93.0 | ||
100 |
비교예Ω | | 14.6 | 61.4 | 81.0 | 96.4 | 96.6 |
비교예(SF) | | 8.4 | 56.0 | 75.1 | 96.0 | 98.1 | |
실시예 | 10.6 | 27.1 | 62.6 | 82.4 | 97.5 | 102 |
규격 |
W/B (%) |
S/a (%) |
단위재료량(kg/㎥) | ||||||||
W | B | Ce | BFS | FA | PA | S | G | Ad | |||
20-50-600 | 34.8 | 47.9 | 160 | 460 | 359 | 64 | 37 | 0.6 | 819 | 901 | 6.67 |
20-60-600 | 28.5 | 45.0 | 160 | 561 | 365 | 152 | 45 | 0.8 | 727 | 899 | 7.40 |
20-70-600 | 26.6 | 43.6 | 160 | 602 | 361 | 192 | 48 | 0.9 | 688 | 901 | 8.12 |
20-80-600 | 24.6 | 42.0 | 160 | 650 | 364 | 234 | 52 | 1.0 | 644 | 900 | 8.78 |
20-100-600 | 20.5 | 37.2 | 160 | 780 | 406 | 312 | 62 | 1.5 | 527 | 900 | 10.9 |
0-lot(sec) | Slump Flow(mm) | Air(%) | T 500 ( sec ) | |||||
규격 | 0분 | 60분 | 0분 | 60분 | 0분 | 60분 | 0분 | 60분 |
20-50-600 | 3.6 | 7.9 | 630x630 | 600x590 | 4.8 | 3.7 | 2.0 | 3.6 |
20-60-600 | 4.5 | | 640x630 | | 4.3 | | 3.5 | |
20-70-600 | 8.7 | | 670x660 | | 4.1 | | 5.0 | |
20-80-600 | 9.9 | | 650x630 | | 3.7 | | 4.4 | |
20-100-600 | 14.8 | 9.6 | 620x620 | 630x630 | 4.2 | 3.9 | 4.5 | 4.0 |
설계강도 (MPa) |
압축강도(MPa) | |||||||
15Hr | 18Hr | 24Hr | 3d | 7d | 28d | 56d | 91d | |
50 | 5.72 | 12.4 | 15.6 | 25.8 | 36.0 | 51.7 | 2.8 | |
60 | 5.12 | 12.2 | 17.7 | 27.0 | 40.8 | 60.2 | 2.4 | |
70 | 2.97 | 12.4 | 19.8 | 36.5 | 58.7 | 75.5 | 7.2 | |
80 | 3.74 | 13.2 | 20.6 | 36.0 | 65.2 | 81.4 | 5.1 | |
100 | 3.68 | 9.54 | 23.2 | 52.0 | 77.7 | 95.2 | 8.6 | 102 |
압축강도 (MPa) |
시험체 A 주철근 | 시험체 B 주철근 | 비고 | ||
평균온도(℃) | 최고온도(℃) | 평균온도(℃) | 최고온도(℃) | ||
538 | 649 | 538 | 649 | 성능기준 | |
50 | 456 | 472 | 531 | 568 | |
60 | 495 | 481 | 576 | 550 | |
70 | 528 | 508 | 599 | 606 | |
80 | 514 | 523 | 575 | 585 | |
100 | 480 | 461 | 558 | 539 |
Claims (5)
- 콘크리트 조성물의 단위체적에 대하여,
1종 조강형 시멘트를 포함하는 결합재 570 내지 770㎏/㎥과;
물 160 내지 165㎏/㎥과;
잔골재 530 내지 720㎏/㎥과;
굵은 골재 820 내지 900㎏/㎥ 을 포함하여 구성되고,
물결합재비(W/B)는 21~29%, 잔골재율(S/a)은 37-46%이며,
상기 1종 조강형 시멘트는 4,000 내지 4,500㎠/g의 분말도를 가지며 조강형 무기첨가재가 함유되고,
상기 1종 조강형 시멘트를 포함하는 결합재는,
1종 조강형 시멘트 300 내지 500㎏/㎥과;
고로슬래그 미분말 60 내지 350㎏/㎥과;
플라이애시 30 내지 100㎏/㎥;으로 구성된 것을 특징으로 하는 1종 조강형 시멘트를 사용한 고강도 콘크리트 조성물. - 삭제
- 삭제
- 삭제
- 제1항의 조성물에 의해 제조되고,
슬럼프 플로우가 500 내지 700mm이고, 압축강도가 50~100MPa인 것을 특징으로 하는 1종 조강형 시멘트를 사용한 고강도 콘크리트.
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KR102526859B1 (ko) | 2022-05-16 | 2023-04-28 | (주)자연콘이엔씨 | Pc용 콘크리트 조성물 |
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CA3158926A1 (en) | 2014-06-25 | 2015-12-30 | CR Minerals Company, LLC | Pozzolanic compositions containing coal ash and remediation agents for use in cementitious materials |
KR101705242B1 (ko) * | 2015-05-27 | 2017-02-22 | 한국건설기술연구원 | 시공성을 향상시킨 초고성능 섬유보강 콘크리트의 제조방법 |
US10457601B2 (en) | 2017-02-24 | 2019-10-29 | CR Minerals Company, LLC | Settable compositions comprising remediated fly ash (RFA) and methods of cementing in subterranean formations |
KR101993873B1 (ko) * | 2017-06-14 | 2019-06-28 | 삼성물산(주) | 분체량 절감을 위한 조강형 저수축 콘크리트 |
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JPH0812464A (ja) * | 1994-06-22 | 1996-01-16 | Shimizu Corp | 気泡コンクリートおよびそれを用いたプレキャストコンクリート部材 |
JPH09241062A (ja) * | 1996-03-05 | 1997-09-16 | Nof Corp | コンクリート組成物及びコンクリート |
KR100893495B1 (ko) | 2008-01-09 | 2009-04-17 | 한일시멘트 (주) | 자기충전용 저발열 고강도 콘크리트 조성물 및 그 제조방법 |
KR101154699B1 (ko) * | 2009-12-30 | 2012-06-08 | 대림산업 주식회사 | 조기강도 발현 성능을 가지는 콘크리트 조성물 |
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JPH09241062A (ja) * | 1996-03-05 | 1997-09-16 | Nof Corp | コンクリート組成物及びコンクリート |
KR100893495B1 (ko) | 2008-01-09 | 2009-04-17 | 한일시멘트 (주) | 자기충전용 저발열 고강도 콘크리트 조성물 및 그 제조방법 |
KR101154699B1 (ko) * | 2009-12-30 | 2012-06-08 | 대림산업 주식회사 | 조기강도 발현 성능을 가지는 콘크리트 조성물 |
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KR102526859B1 (ko) | 2022-05-16 | 2023-04-28 | (주)자연콘이엔씨 | Pc용 콘크리트 조성물 |
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