KR100945204B1 - 복합섬유를 이용한 초고인성 방폭 시멘트 복합체 - Google Patents
복합섬유를 이용한 초고인성 방폭 시멘트 복합체 Download PDFInfo
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- KR100945204B1 KR100945204B1 KR1020090068902A KR20090068902A KR100945204B1 KR 100945204 B1 KR100945204 B1 KR 100945204B1 KR 1020090068902 A KR1020090068902 A KR 1020090068902A KR 20090068902 A KR20090068902 A KR 20090068902A KR 100945204 B1 KR100945204 B1 KR 100945204B1
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- 239000000835 fiber Substances 0.000 title claims abstract description 87
- 239000002131 composite material Substances 0.000 title claims abstract description 29
- 239000004568 cement Substances 0.000 title claims abstract description 23
- 238000004880 explosion Methods 0.000 title description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 26
- 239000010959 steel Substances 0.000 claims abstract description 26
- 239000011083 cement mortar Substances 0.000 claims abstract description 9
- 239000011118 polyvinyl acetate Substances 0.000 claims description 39
- 239000004698 Polyethylene Substances 0.000 claims description 34
- 230000005484 gravity Effects 0.000 claims description 7
- -1 polyethylene Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 239000004566 building material Substances 0.000 abstract description 5
- 239000004570 mortar (masonry) Substances 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 89
- 229920002689 polyvinyl acetate Polymers 0.000 description 38
- 239000004567 concrete Substances 0.000 description 23
- 239000002360 explosive Substances 0.000 description 23
- 238000005422 blasting Methods 0.000 description 15
- 230000006378 damage Effects 0.000 description 13
- 238000009863 impact test Methods 0.000 description 7
- 238000002156 mixing Methods 0.000 description 6
- 238000011056 performance test Methods 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 238000009864 tensile test Methods 0.000 description 4
- 238000010998 test method Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000004580 weight loss Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
Images
Classifications
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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
- 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
- C04B28/04—Portland cements
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/0048—Fibrous materials
- C04B20/0068—Composite fibres, e.g. fibres with a core and sheath of different material
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/38—Fibrous materials; Whiskers
- C04B14/48—Metal
-
- 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
- C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B16/04—Macromolecular compounds
- C04B16/06—Macromolecular compounds fibrous
- C04B16/0616—Macromolecular compounds fibrous from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B16/0625—Polyalkenes, e.g. polyethylene
-
- 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
- C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B16/04—Macromolecular compounds
- C04B16/06—Macromolecular compounds fibrous
- C04B16/0616—Macromolecular compounds fibrous from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B16/0641—Polyvinylalcohols; Polyvinylacetates
-
- 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
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2038—Resistance against physical degradation
- C04B2111/2053—Earthquake- or hurricane-resistant materials
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
-
- 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
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Civil Engineering (AREA)
- Composite Materials (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
시험체 종류 | W/B (wt) | 섬유혼입율 (vol%) | W/C (wt) | 단위수량 (kg/㎥) | 측정항목 |
Plain | 0.40 | 0.0 | 0.47 | 452 | - 충격파괴 성상 · 시험체 외관관찰 · 충격파괴 등급 · 충격파괴 깊이(㎜) · 충격파괴 면적(㎟) · 중량감소율(%) |
PVA | 0.40 | 2.0 | 0.47 | 452 | |
PE | 0.40 | 2.0 | 0.47 | 452 | |
STF | 0.40 | 2.0 | 0.47 | 452 | |
PVA+STF | 0.40 | 각 1.0 | 0.47 | 452 | |
PE+STF | 0.40 | 각 1.0 | 0.47 | 452 |
시험체 종류 | W/C (wt) | W/B (wt) | W/M (wt) | Vf (vol) | W (㎏/㎥) | Unit volume (ℓ/㎥) | Unit weight (kg/㎥) | ||||||
C | S | FA | F | C | S | FA | F | ||||||
Plain | 0.47 | 0.40 | 0.30 | 0.00 | 452 | 305 | 150 | 74 | 0.0 | 960 | 395 | 169 | 0.0 |
PVA | 0.02 | 305 | 150 | 74 | 20 | 960 | 395 | 169 | 25.5 | ||||
PE | 305 | 150 | 74 | 20 | 960 | 395 | 169 | 18.6 | |||||
STF | 305 | 150 | 74 | 20 | 960 | 395 | 169 | 153.9 | |||||
PVA+STF | 각 0.01 | 305 | 150 | 74 | 20 | 960 | 395 | 169 | 12.9+77.7 | ||||
PE+STF | 305 | 150 | 74 | 20 | 960 | 395 | 169 | 9.3+77.7 |
구분 | PVA섬유 | PE섬유 | 강섬유 |
섬유직경(㎛) | 40 | 12 | 700 |
섬유길이(mm) | 12 | 15 | 50.9 |
인장강도(MPa) | 1,300 | 2,700 | 1,140 |
비중 | 1.30 | 0.95 | 7.85 |
구분 | 무파괴 | 표면파괴 | 배면파괴 | 관통 | 완전관통 |
파괴형상 | |||||
평가 | 타격면의 손상없이 비상체가 바운드된 상태 | 충격면에 균열 및 탄흔이 발생한 상태 | 충격력에 의해 배면이 파괴된 상태 | 큰 파괴와 함께 완전히 관통된 상태 | 작은 파괴와 함께 완전히 관통된 상태 |
시험체 종류 | 최대파괴깊이(㎜) | 파괴면적(㎟) | 중량감소율 (%) | ||
표면 | 배면 | 표면 | 배면 | ||
Plain | 3.2 | 6.0 | 325.3 | 834.5 | 1.8 |
PVA | 4.7 | 0.0 | 30.2 | 34.4 | 0.3 |
PE | 관통 | 관통 | 4.2 | 68.5 | 1.2 |
STF | 2.1 | 1.2 | 218.9 | 190.7 | 0.6 |
PVA+STF | 5.2 | 0.0 | 72.5 | 0.0 | 0.4 |
PE+STF | 6.0 | 0.0 | 49.6 | 0.0 | 0.3 |
종류 | 평균폭발속도 (m/sec) | 폭발열 (kcal/kg) |
에멀젼 폭약 | 5,700 | 1,100 |
Claims (6)
- 강섬유와 유기섬유가 혼합된 복합섬유가 일반 시멘트 모르타르에 1.05~2.0vol%로 혼입되되,상기 강섬유는 직경이 650~750㎛, 길이가 40~60㎜, 비중이 7.8~7.9, 인장강도가1,100~1,150MPa이고, 상기 시멘트 모르타르에 0.55~1.0vol%로 혼입되며,상기 유기섬유로는 직경이 35~45㎛, 길이가 10~15㎜, 비중이 1.2~1.4, 인장강도가 1,250~1,350MPa인 PVA(polyvinyl acetate)가 사용되고, 상기 시멘트 모르타르에 0.40~1.0vol%로 혼입된 것을 특징으로 하는 초고인성 방폭 시멘트 복합체.
- 강섬유와 유기섬유가 혼합된 복합섬유가 일반 시멘트 모르타르에 1.05~2.0vol%로 혼입되되,상기 강섬유는 직경이 650~750㎛, 길이가 40~60㎜, 비중이 7.8~7.9, 인장강도가1,100~1,150MPa이고, 상기 시멘트 모르타르에 0.55~1.0vol%로 혼입되며,상기 유기섬유로는 직경이 10~15㎛, 길이가 13~18㎜, 비중이 0.9~1.0, 인장강도가 2,650~2,750MPa인 PE(polyethylene)가 사용되고, 상기 시멘트 모르타르에 0.40~1.0vol%로 혼입된 것을 특징으로 하는 초고인성 방폭 시멘트 복합체.
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KR1020090068902A KR100945204B1 (ko) | 2009-07-28 | 2009-07-28 | 복합섬유를 이용한 초고인성 방폭 시멘트 복합체 |
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KR1020090068902A KR100945204B1 (ko) | 2009-07-28 | 2009-07-28 | 복합섬유를 이용한 초고인성 방폭 시멘트 복합체 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101851958A (zh) * | 2010-05-10 | 2010-10-06 | 陈岳朝 | 一种具有多晶体保温砂浆的保温系统 |
KR20160011410A (ko) | 2014-07-22 | 2016-02-01 | 한국건설기술연구원 | 내충격 및 방폭 강화용 초고성능 시멘트 조성물 |
KR20160114758A (ko) * | 2015-03-24 | 2016-10-06 | 최광호 | Pva섬유와 비정질 강섬유 혼입 고인성 시멘트 복합체 |
KR20230077124A (ko) | 2021-11-25 | 2023-06-01 | 롯데건설 주식회사 | 방폭용 보강 패널 설치 구조 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20060086110A (ko) * | 2005-01-26 | 2006-07-31 | 원종필 | 이종의 보강 섬유를 포함하는 시멘트재와 이의 조성물 |
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- 2009-07-28 KR KR1020090068902A patent/KR100945204B1/ko active IP Right Grant
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20060086110A (ko) * | 2005-01-26 | 2006-07-31 | 원종필 | 이종의 보강 섬유를 포함하는 시멘트재와 이의 조성물 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101851958A (zh) * | 2010-05-10 | 2010-10-06 | 陈岳朝 | 一种具有多晶体保温砂浆的保温系统 |
KR20160011410A (ko) | 2014-07-22 | 2016-02-01 | 한국건설기술연구원 | 내충격 및 방폭 강화용 초고성능 시멘트 조성물 |
KR20160114758A (ko) * | 2015-03-24 | 2016-10-06 | 최광호 | Pva섬유와 비정질 강섬유 혼입 고인성 시멘트 복합체 |
KR101671206B1 (ko) | 2015-03-24 | 2016-11-02 | 남서울대학교 산학협력단 | Pva섬유와 비정질 강섬유 혼입 고인성 시멘트 복합체 |
KR20230077124A (ko) | 2021-11-25 | 2023-06-01 | 롯데건설 주식회사 | 방폭용 보강 패널 설치 구조 |
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