KR101841571B1 - Elastomeric Mortar Composition - Google Patents
Elastomeric Mortar Composition Download PDFInfo
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- KR101841571B1 KR101841571B1 KR1020170033110A KR20170033110A KR101841571B1 KR 101841571 B1 KR101841571 B1 KR 101841571B1 KR 1020170033110 A KR1020170033110 A KR 1020170033110A KR 20170033110 A KR20170033110 A KR 20170033110A KR 101841571 B1 KR101841571 B1 KR 101841571B1
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- silica
- cement
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- 239000000203 mixture Substances 0.000 title claims abstract description 23
- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 17
- 229920005989 resin Polymers 0.000 claims abstract description 43
- 239000011347 resin Substances 0.000 claims abstract description 43
- 239000004568 cement Substances 0.000 claims abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 9
- 239000002245 particle Substances 0.000 claims abstract description 7
- 239000002270 dispersing agent Substances 0.000 claims abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 27
- 239000011247 coating layer Substances 0.000 claims description 14
- 239000000377 silicon dioxide Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 8
- 239000012783 reinforcing fiber Substances 0.000 claims description 8
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 7
- 239000012784 inorganic fiber Substances 0.000 claims description 6
- 150000001768 cations Chemical class 0.000 claims description 5
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 229910001415 sodium ion Inorganic materials 0.000 claims description 3
- 239000000835 fiber Substances 0.000 abstract description 14
- 239000003795 chemical substances by application Substances 0.000 abstract description 4
- 229910021487 silica fume Inorganic materials 0.000 abstract description 3
- 239000004743 Polypropylene Substances 0.000 abstract description 2
- -1 polypropylene Polymers 0.000 abstract description 2
- 229920001155 polypropylene Polymers 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 14
- 239000005084 Strontium aluminate Substances 0.000 description 9
- FNWBQFMGIFLWII-UHFFFAOYSA-N strontium aluminate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Al+3].[Sr+2].[Sr+2] FNWBQFMGIFLWII-UHFFFAOYSA-N 0.000 description 9
- 239000004567 concrete Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000007788 liquid Substances 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- IBDVWXAVKPRHCU-UHFFFAOYSA-N 2-(2-methylprop-2-enoyloxy)ethyl 3-oxobutanoate Chemical compound CC(=O)CC(=O)OCCOC(=O)C(C)=C IBDVWXAVKPRHCU-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XUMBMVFBXHLACL-UHFFFAOYSA-N Melanin Chemical compound O=C1C(=O)C(C2=CNC3=C(C(C(=O)C4=C32)=O)C)=C2C4=CNC2=C1C XUMBMVFBXHLACL-UHFFFAOYSA-N 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229920001567 vinyl ester resin Polymers 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000004111 Potassium silicate Substances 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000006172 buffering agent Substances 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- MOTZDAYCYVMXPC-UHFFFAOYSA-N dodecyl hydrogen sulfate Chemical compound CCCCCCCCCCCCOS(O)(=O)=O MOTZDAYCYVMXPC-UHFFFAOYSA-N 0.000 description 1
- 229940043264 dodecyl sulfate Drugs 0.000 description 1
- 238000001523 electrospinning Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 description 1
- 229910052912 lithium silicate Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229910052913 potassium silicate Inorganic materials 0.000 description 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 238000010257 thawing Methods 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
-
- 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
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/06—Quartz; Sand
-
- 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
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/06—Quartz; Sand
- C04B14/066—Precipitated or pyrogenic silica
-
- 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
- C04B16/0633—Polypropylene
-
- 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
- C04B18/146—Silica fume
-
- 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
- C04B20/10—Coating or impregnating
- C04B20/1003—Non-compositional aspects of the coating or impregnation
- C04B20/1014—Coating or impregnating materials characterised by the shape, e.g. fibrous 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
- 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
- C04B20/10—Coating or impregnating
- C04B20/1018—Coating or impregnating with organic materials
- C04B20/1029—Macromolecular compounds
-
- 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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators or shrinkage compensating agents
- C04B22/008—Cement and like inorganic materials added as expanding or shrinkage compensating ingredients in mortar or concrete compositions, the expansion being the result of a recrystallisation
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/04—Carboxylic acids; Salts, anhydrides or esters thereof
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- C04B2111/50—Flexible or elastic materials
- C04B2111/503—Elastic materials
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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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Civil Engineering (AREA)
- Inorganic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
본 발명은 시멘트 100중량부에 대해 실리카흄 5 내지 10중량부, 팽창재 2 내지 5중량부, 폴리프로필렌 섬유 0.5 내지 1중량부, 모르타르 분체입자 분산제 1 내지 3중량부, 비나파스수지 2 내지 5중량부, EVA수지 2 내지 5중량부를 포함하는 것을 특징으로 하는 탄성 모르타르 조성물에 관한 것이다.The present invention relates to a cement composition comprising 5 to 10 parts by weight of silica fume, 2 to 5 parts by weight of an expanding agent, 0.5 to 1 part by weight of a polypropylene fiber, 1 to 3 parts by weight of a mortar powder particle dispersing agent, 2 to 5 parts by weight of a non- , And 2 to 5 parts by weight of an EVA resin.
Description
본 발명은 고강도가 발현되면서도 시멘트가 가지고 있는 취성적 성질을 보완하여 연성 및 탄성력을 가지게 함으로써 시공중 및 시공후에 발생될 수 있는 균열 방지, 누수 방지, 충격흡수, 고내구성 등 복합적인 기능이 발현되도록 하는 탄성력을 갖춘 복합 모르타르 조성물에 관한 것이다.The present invention is intended to improve the properties of cement such as high strength, softness and elasticity, so that complex functions such as crack prevention, water leakage prevention, shock absorption, and high durability that may occur during and after construction To a composite mortar composition having an elastic force.
일반적으로 지하구조물, 부유식 구조물이나 터널 등은 구조물의 유동, 피로, 충격 등으로 인하여 콘크리트 구조물의 균열 등이 야기되고 그 결과 누수 등에 의해 콘크리트 내부의 철근이 부식되고 콘크리트 자체가 중성화 되는 등 구조적 건전성을 저해시켜 안전문제로 연결될 수 있다. In general, underground structures, floating structures, and tunnels cause cracks in concrete structures due to flow, fatigue, and impact of the structures, and as a result, the reinforcing bars inside the concrete are corroded by leaks, and the concrete itself is neutralized, Which can lead to safety problems.
이를 보완하기 위한 기술의 예로 마이크로 시멘트가 상기와 같은 문제점을 보완하기 위해 지수용으로 개발되어 사용되고 있으나, 이 경우는 탄성이 없이 강도만 발현되도록 하기 때문에 구조물의 특성상 지하수의 변동에 따른 변화, 구조물을 통과하는 중차량의 고속질주로 인한 구조물의 충격, 온도변화에 따른 수축과 팽창의 변화 등에 따른 균열이 생겨 재누수가 발생되는 문제가 있다.In order to compensate for this problem, micro cement has been developed and used as an index to overcome the above problems. However, in this case, since only the strength is expressed without elasticity, There is a problem that cracks are generated due to the impact of the structure due to the high-speed running of the vehicle and the shrinkage and expansion due to the temperature change, thereby causing a leakage.
이에 탄성을 부여한 모르타르에 관한 기술이 제시되고 있는 바, 일 예로 대한민국 특허등록 제1557189호에서는 "아세토아세톡시에틸 메타크릴레이트(Acetoacetoxyethyl methacrylate, AAEM)를 2 내지 10 중량%, 부틸 아크릴 레이크 8 내지 16 중량%, 메틸메타크릴레이트 15 내지 25 중량%를 고르게 혼합하는 단계; 개시제로 암모니움 퍼설페이트 0.01 내지 1.00 중량%를 혼합하는 단계; 버퍼제로서 탄산 나트륨을 0.02 내지 2.0 중량%와 계면활성제로서 소디움 라우릴 설페이트계 재료를 0.05 내지 2.00 중량%, 그리고 물을 44 내지 70중량%를 혼합하는 단계; 상기 혼합물을 1분당 회전 속도 200, 온도 60 내지 100℃에서 30분 이상 동안 반응 시켜 폴리머 에멀젼을 얻는 단계; 무기질 분체 혼합물로써, 보통 시멘트 50-70 중량％, 속경성 시멘트 15-30 중량％, 무수석고계 팽창재 5-10 중량％, 스테아릭산 염 3-8 중량％ 및 첨가제 1-2 중량％를 포함하는 속경성 시멘트 조성물을 구성하는 단계; 속경성 시멘트 조성물 100 중량부를 기준하여 합성한 폴리머 에멀젼을 50 중량부로 다시 혼합하는 단계로 이루어지는 것을 특징으로 하는 고내구성 및 고탄성의 유·무기 복합 시멘트 모르타르 조성물 제조방법을 제시하고 있다. For example, Korean Patent Registration No. 1557189 discloses a method for producing an epoxy resin composition comprising 2 to 10% by weight of acetoacetoxyethyl methacrylate (AAEM), 8 to 16% by weight of butyl acrylate lake Mixing 15 to 25% by weight of methyl methacrylate with 0.01 to 1.00% by weight of ammonia per sulfate as an initiator, adding 0.02 to 2.0% by weight of sodium carbonate as a buffering agent and sodium 0.05 to 2.00% by weight of a lauryl sulfate-based material, and 44 to 70% by weight of water; reacting the mixture at a rotation speed of 200 and a temperature of 60 to 100 캜 for 30 minutes or more per minute to obtain a polymer emulsion Wherein the inorganic powder mixture comprises 50-70% by weight of cement, 15-30% by weight of quick-curing cement, 5-10% by weight of anhydrous gypsum expander, Forming a fast-curing cement composition comprising 3-8% by weight of an aliphatic acid salt and 1-2% by weight of an additive, and mixing the resultant polymer emulsion with 50 parts by weight based on 100 parts by weight of the quick- And a method of manufacturing a high-durability and high-elasticity organic-inorganic hybrid cement mortar composition.
그러나 상기 기술의 경우 폴리머 에멀젼의 첨가에 의해 탄성이 부과되도록 하는 것인데 충분한 강도의 발현을 기대할 수 없으며 탄성부여에 의한 균열제어에 어느 정도 효과가 있을 것으로 보이나 시공중 온도균열 등 충분한 균열의 제어를 기대할 수 없는 문제가 있다. However, in the case of the above-mentioned technique, elasticity is imposed by the addition of the polymer emulsion. However, sufficient strength can not be expected to be exhibited, and it is expected to have some effect on crack control by elasticity imparting. However, sufficient crack control such as temperature cracking There is no problem.
따라서 본 발명은 상기의 문제점을 해결하기 위하여 시공중에 발생되는 균열을 제어할 수 있으며 시공이 완료된 구조물이 외부 충격을 받을 경우 그로 인하여 구조물 변형 등에 의해 발생될 수 있는 균열이 방지되도록 하여 구조물 변형에 따른 구조물 붕괴, 균열에 의한 오염물질이나 화학물질 침투로 내구성 저하를 제어할 수 있는 탄성 모르타르 조성물을 제공하고자 함이다. Accordingly, in order to solve the above problems, it is an object of the present invention to provide a method and apparatus for controlling cracks occurring during construction, and to prevent cracks that may occur due to structural deformation, etc., And to provide a resilient mortar composition capable of controlling durability deterioration due to contaminants or chemical infiltration due to structural collapse and cracks.
상기 목적을 달성하기 위하여 본 발명의 탄성 모르타르 조성물은 시멘트 100중량부에 대해 규사 100 내지 200중량부, 실리카흄 5 내지 10중량부, 팽창재 2 내지 5중량부, 보강섬유 0.5 내지 1중량부, 모르타르 분체입자 분산제 1 내지 3중량부, 비나파스수지 2 내지 5중량부, 징크스테아레이트 0.5 내지 1중량부를 포함하는 것을 특징으로 한다. In order to achieve the above object, the elastic mortar composition of the present invention comprises 100 to 200 parts by weight of silica, 5 to 10 parts by weight of silica fume, 2 to 5 parts by weight of expanding material, 0.5 to 1 part by weight of reinforcing fiber, 1 to 3 parts by weight of a particle dispersing agent, 2 to 5 parts by weight of a nonapas resin, and 0.5 to 1 part by weight of zinc stearate.
하나의 예로 시멘트 100중량부에 대해 규산염 1 내지 3중량부가 더 포함되는 것을 특징으로 한다. As an example, it is further characterized in that 1 to 3 parts by weight of silicate is further added to 100 parts by weight of cement.
하나의 예로 시멘트 100중량부에 대해 양이온 교환기를 가지는 분말수지 0.5 내지 2중량부가 더 포함되는 것을 특징으로 한다. As an example, it is further characterized in that 0.5 to 2 parts by weight of a powdered resin having a cation exchanger is added to 100 parts by weight of cement.
하나의 예로 시멘트 100중량부에 대해 실리카 5 내지 20중량부가 배합되되, 실리카는 그 외주연에 수지코팅층이 도포된 것을 특징으로 한다. As an example, 5 to 20 parts by weight of silica is compounded with respect to 100 parts by weight of cement, and silica is coated with a resin coating layer on the other peripheral edge.
하나의 예로 상기 수지코팅층에는 유기 또는 무기 섬유가 함유됨을 특징으로 한다.As one example, organic resin or inorganic fiber is contained in the resin coating layer.
이상 설명한 바와 같이 본 발명의 탄성 모르타르 조성물은 40MPa 이상의 고강도를 나타내면서도 탄성 등을 가지고 있어 시공중 및 시공후에 발생될 수 있는 균열에 대한 저항성, 취성파괴에 대한 저항성, 염해저항성, 무수축, 수밀성 등 복합적인 효과가 발현되는 장점이 있다.As described above, the elastic mortar composition of the present invention exhibits a high strength of 40 MPa or more and has elasticity and the like. Therefore, the elastic mortar composition of the present invention has resistance to cracks, resistance to brittle fracture, resistance to salt corrosion, There is an advantage that a complex effect is expressed.
도 1은 본 발명의 모르타르를 이용하여 퍼짐성 실험에 따른 사진.
도 2는 본 발명의 모르타를 이용하여 연성에 대한 실험에 다른 사진.FIG. 1 is a photograph of the spreadability test using the mortar of the present invention. FIG.
FIG. 2 is another photograph of an experiment on ductility using the mortar of the present invention. FIG.
이하에서는 첨부도면을 참조하여 본 발명에 대하여 상세히 설명한다. Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
본 발명에 대한 실시예는 여러 가지 다른 형태로 변형될 수 있으므로, 본 발명의 범위가 본 발명의 한계를 명시하거나 내포하는 것이 아니라 본 발명을 통하여 활용할 수 있는 일반적인 방법을 설명하고 있으므로 아래에서 설명되는 실시예에 한정되지는 않는다.Since the embodiments of the present invention can be modified in various other forms, it is to be understood that the scope of the present invention is not limited to or embraces the limits of the present invention, It is not limited to the embodiment.
본 발명의 탄성 모르타르 조성물은 시멘트 100중량부에 대해 규사 100 내지 200중량부, 실리카흄 5 내지 10중량부, 팽창재 2 내지 5중량부, 보강섬유 0.5 내지 1중량부, 모르타르 분체입자 분산제 1 내지 3중량부, 비나파스수지 2 내지 5중량부, 징크스테아레이트 0.5 내지 1중량부를 포함하는 것을 특징으로 한다. The elastic mortar composition of the present invention comprises 100 to 200 parts by weight of silica sand, 5 to 10 parts by weight of silica fume, 2 to 5 parts by weight of expanding agent, 0.5 to 1 part by weight of reinforcing fiber, 1 to 3 parts by weight of mortar powder particle dispersant 2 to 5 parts by weight of a non-napas resin, and 0.5 to 1 part by weight of zinc stearate.
즉 본 발명은 고강도가 발현되면서도 비나파스수지 등에 의해 페이스트에 탄성이 부과되고 보강섬유, 팽창재 등에 의해 시공중 및 시공후 발생될 수 있는 균열을 제어하도록 하여 구조적 건전성을 향상시키고 고내구성이 발현되도록 함으로써 일반구조물의 보수 및 신축용 재료, 마리나 구조물과 같은 해양구조물의 보수 및 신축용 재료와 지하차도, 전력구 등 지하구조물의 보수 및 신축용 재료 등 다양한 용도로 적용될 수 있는 모르타르 조성물에 관한 것이다.In other words, the present invention can improve the structural integrity and enhance the durability by controlling the cracks that may be generated during and after the application by the reinforcement fiber, the expanding material, etc., by applying elasticity to the paste by the non- To repairing and expanding materials of marine structures such as marine structures such as repairing and expanding materials of general structures, underground roads for repairing and expanding marine structures, and underground structures such as power tools, and the like.
상기 팽창재는 경화과정에서 유발되는 균열 등을 제어하기 위한 것으로 그 종류를 한정하지 않으나, 바람직하게 CSA-CaO계 팽창재가 사용될 수 있으며, CSA계 팽창재는 특히 건조수축에 의한 콘크리트의 균열이 발생되는 것을 억제하는 것으로서, 상기 CSA계 팽창재는 재령 7일까지 수축을 억제할 수 있는 역할을 하고, CaO 계 팽창재는 재령 21일까지의 수축을 억제할 수 있는 역할을 한다.The CSA-expanding material is preferably a CSA-CaO expanding material. In particular, the CSA expanding material may cause cracking of the concrete due to drying shrinkage The CSA-based expanding agent can suppress the shrinkage until the 7th day of age, and the CaO-based expanding agent can suppress the shrinkage until the 21st day of age.
상기 모르타르 분체입자 분산제는 멜라닌계의 고성능 감수제로서, 그 유효 분자가 시멘트 및 각종 분체에 흡착하여 표면전하를 높임에 의해, 정전기적 반발력으로 시멘트 등 미분체 입자의 응집을 분산하고, 물이나 공기포를 방해하여 페이스트의 유동성을 높일 수 있게 된다. The mortar powder particle dispersing agent is a melanin-based high-performance water reducing agent, the effective molecules of which are adsorbed on cement and various powders to increase the surface charge, thereby dispersing aggregation of fine powder particles such as cement by electrostatic repulsion, It is possible to increase the fluidity of the paste.
상기 보강섬유는 폴리프로필렌 섬유 등 그 종류를 한정하지 않으며, 표준 길이가 10㎜이고 인장 강도가 450MPa 이상을 갖는 직경 20micron의 단섬유로서, 상기 모르타르의 제조시에 혼합하여 초기 수축 균열의 억제, 균열 확산 억제, 충격 파손 및 마모, 피로 하중에 대한 저항력 증대, 휨강도 및 인성을 증대시키는데 사용된다. The reinforcing fiber is not limited to a polypropylene fiber and the like, and is a short fiber having a standard length of 10 mm and a tensile strength of 450 MPa or more and having a diameter of 20 microns. The reinforcing fiber may be mixed at the time of producing the mortar to suppress initial shrinkage cracking, Diffusion resistance, impact damage and wear, increased resistance to fatigue load, bending strength and toughness.
상기 비나파스수지는 액상수지를 스프레이 건조하여 제조한 분산 물질로서 물에 분산시키면 안정한 액상수지가 되고 물에 분산된 수지는 건조 후 물에 녹지 않는 비가역적인 폴리머 필름을 형성하고 액상수지와 같이 시멘트와 혼합 사용되어 인장, 휨강도 등을 향상시키며 접착력을 증가시키는 역할을 한다. 특히 상기 비나파스수지가 첨가되어 경화후 페이스트의 탄성이 발현되도록 하여 취성파괴에 대한 저항성을 향상시키게 되는 것이다. The Binapas resin is a dispersion material prepared by spray drying a liquid resin. When dispersed in water, the resin becomes a stable liquid resin. The resin dispersed in water forms an irreversible polymer film that does not dissolve in water after drying. It is mixed and used to improve tensile and flexural strength and increase adhesive strength. In particular, the non-napas resin is added to improve the elasticity of the paste after curing, thereby improving the resistance to brittle fracture.
상기 징크스테아레이트는 부착력을 향상시키기 위한 구성에 해당한다. The zinc stearate corresponds to a structure for improving the adhesion.
한편 본 발명에서는 EVA 수지가 첨가될 수 있는데, EVA 수지는 비닐 에스테르에 기초하여 에틸렌/비닐 아세테이트를 공중합체의 중합 방법으로 제조한 것으로서, 고분자 입자의 볼베어링 효과 및 피막 형성에 의해 모르타르의 유동성을 향상시키는 역할을 하며, 모르타르의 점성을 갖게 하여 기존 콘크리트 구조물과의 부착성능을 향상시키면서 휨강도 및 모르타르의 표면경도가 증가될 수 있도록 할 뿐만 아니라, 피막 형성에 의한 부식 방지 효과가 있어서 보수 후 철근의 부식을 미연에 방지할 수 있도록 한다. In the present invention, an EVA resin can be added. The EVA resin is prepared by polymerization of ethylene / vinyl acetate based on vinyl ester based on vinyl ester, and the fluidity of the mortar is improved by the ball bearing effect of the polymer particles and the film formation And it has a viscosity of mortar to improve the adhesion performance with existing concrete structures while increasing the bending strength and the surface hardness of the mortar and also has corrosion prevention effect due to the formation of the coating, So as to prevent it from coming out.
또한 본 발명은 기존 콘크리트 구조물과의 부착력을 향상시키기 위한 실시 예로서 시멘트 100중량부에 대해 규산염 1 내지 3중량부가 배합되도록 하는 예를 제시한다. In addition, the present invention provides an example of improving adhesion to existing concrete structures, wherein 1 to 3 parts by weight of silicate is added to 100 parts by weight of cement.
상기 규산염은 콘크리트 구조물 표면의 시멘트 알카리반응시 생성되는 수산화칼슘과 반응을 통하여 규산칼슘수화물을 생성시키며, 생성된 규산칼슘수화물은 콘크리트 구조물 표면의 미세기공에 충진되어 결국 부착면의 밀실한 충진과 밀실한 표면구조의 제공에 의한 부착력을 향상시키도록 하는 것이다. The silicate reacts with the calcium hydroxide generated on the surface of the concrete structure to react with the calcium hydroxide generated during the cement alkali reaction, and the generated calcium silicate hydrate is filled in the micropores on the surface of the concrete structure. As a result, So as to improve the adhesion by providing the surface structure.
이러한 규산염은 리튬실리케이트, 소듐실리케이트, 포타슘실리케이트 중 하나 또는 하나 이상의 혼합물인 것을 사용하는 것이 타당하다. It is appropriate to use such a silicate which is one or a mixture of one or more of lithium silicate, sodium silicate, and potassium silicate.
그런데 상기 규산염이 첨가되는 등에 의해 본 발명의 조성물의 반응과정에 있어 페이스트에는 나트륨이온(Na+) 등이 잔존하게 되며 나트륨이온 등은 물과 반응하여 페이스트 외부로 누출되게 되고 이러한 누출은 페이스트의 체적 감소에 따라 균열을 유발하는 등으로 수밀성 및 강도를 저해하는 요인으로 작용하게 된다.However, in the reaction process of the composition of the present invention by adding the silicate, the sodium ion (Na +) or the like is left in the paste, and the sodium ion reacts with water and leaks to the outside of the paste. And causes cracks in accordance with the strength of the water.
이에 본 발명에서는 양이온 교환기를 가지는 분말수지가 시멘트 100중량부에 대해 0.5 내지 2중량부가 배합되도록 하는 예를 제시하고 있다. Accordingly, the present invention provides an example in which 0.5 to 2 parts by weight of the powdery resin having a cation-exchange group is blended with 100 parts by weight of cement.
양이온교환기를 포함하는 분말수지가 더 첨가되도록 하여 양이온교환기를 포함하는 분말수지에 의해 페이스트에 잔존하는 나트륨이온(Na+) 등을 이온교환을 통해 제거토록 하여 경화 후 페이스트로부터 나트륨 등의 누출에 의한 수밀성 및 강도저하를 방지토록 하는 것이다. 즉 페이스트의 수밀성 및 강도저하를 방지하도록 하여 내구성을 향상시키도록 하는 것이다. (Na < + >) remaining in the paste is removed through ion exchange by a powder resin including a cation exchanger so that a powder resin including a cation exchanger is further added, And to prevent the strength from being lowered. That is, the watertightness and the strength of the paste are prevented from being lowered, thereby improving the durability.
바람직하게 상기 양이온교환기는 술폰산기(-SO3H), 카르복실기(-COOH), 포스피닉기(-HPO2H), 아소닉기(-AsO3H2) 및 셀리노닉기(-SeO3H)로 구성된 군에서 선택된 하나 또는 하나 이상인 것이 바람직하다. Preferably, the cation exchanger is selected from the group consisting of a sulfonic acid group (-SO3H), a carboxyl group (-COOH), a phosphonic group (-HPO2H), an acidic group (-AsO3H2), and a selinonic group (-SeO3H) Or more.
한편 본 발명의 조성물은 타설후 경화과정에서 균열이 발생되어 강도가 저하될 수 있으며 이러한 온도균열 등을 제어하기 위해 상기에서 보는 바와 같이 팽창재를 첨가하도록 하나 팽창재의 과도한 첨가는 오히려 강도저하를 유발할 수 있는 바, 상기와 같은 배합범위로 팽창재를 첨가하면서 이에 더하여 본 발명에서는 상기 시멘트 100중량부에 대해 스트론튬 알루미네이트 함유 다공성 섬유가 1 내지 3중량부가 더 포함되도록 하는 예를 제시하고 있다. Meanwhile, in the composition of the present invention, cracks are generated in the curing process after the placement, and the strength may be lowered. In order to control the temperature cracks and the like, an expanding material is added as shown above, but excessive addition of the expanding material may cause a decrease in strength In addition, the present invention proposes an example in which 1 to 3 parts by weight of strontium aluminate-containing porous fibers are further added to 100 parts by weight of the cement.
상기 스트론튬 알루미네이트 함유 다공성 섬유는 상기 조성물에 첨가되어 섬유의 가교작용에 의해 페이스트의 균열저항성을 물리적으로 향상시키게 되는 것이며 섬유가 다공성으로 이루어져 열차단층의 기능을 하게 되는 것인데 특히 본 발명의 조성물이 구조물의 벽체 등으로 사용되는 경우 내,외부로부터 열의 차단층으로서 기능을 하게 되는 것이다. The strontium aluminate-containing porous fiber is added to the composition to physically improve the crack resistance of the paste due to the crosslinking action of the fibers, and the fibers are made porous to function as a heat fault layer. In particular, It functions as a barrier layer for heat from inside or outside.
특히 스트론튬 알루미네이트를 함유하고 있어 경화과정에서 경화열을 빛 에너지로 전환시켜 방출시킴으로써 경화열의 방출에 의해 경화열에 의한 온도균열을 제어하도록 하는 것이다. In particular, it contains strontium aluminate so that the curing heat is converted into light energy in the curing process and released, thereby controlling the temperature crack due to the curing heat by the release of the curing heat.
상기 스트론튬 알루미네이트는 열에너지에 노출되는 경우 핵 주위를 도는 전자가 열에너지에 의하여 들뜬 상태로 가면서 열에너지를 흡수하고 전자의 안정화 경향에 따라 빛 에너지로 방사하면서 다시 원상태로 복귀하는 성질을 가진다. 즉 상기 스트론튬 알루미네이트는 열에너지를 빛에너지로 전환하여 방사함으로써 페이스트의 경화과정에서 발생되는 경화열을 외부로 방열시키게 되는 것이다. When strontium aluminate is exposed to thermal energy, electrons around the nucleus are excited by thermal energy, absorbing heat energy, and emit as light energy according to the stabilization tendency of electrons and return to the original state. That is, the strontium aluminate converts heat energy into light energy and radiates it, thereby radiating the heat of hardening generated in the paste hardening process to the outside.
또한 스트론튬 알루미네이트 함유 다공성 섬유는 상기 조성물에 첨가되어 타 조성과 다공성 섬유 간 부착력을 더욱 향상시키게 되는 것이다. Further, the strontium aluminate-containing porous fibers are added to the composition to further improve the adhesion between the other composition and the porous fibers.
이러한 스트론튬 알루미네이트 함유 다공성섬유는 공지의 방법에 의해 제조될 수 있는 바, 예로 폴리머 전구체와 용매를 혼합한 후에 이러한 혼합물에 스트론튬 알루미네이트을 상기 폴리머 전구체에 분산시키고 이러한 과정을 거쳐 얻어진 혼합물을 전기방사하여 섬유로 제조되도록 하는 것이다. 이렇게 제조된 섬유를 산화시키고 탄화시켜 최종적으로 스트론튬 알루미네이트가 함유된 다공성 섬유로 제조되도록 하는 것이다. Such strontium aluminate-containing porous fibers can be prepared by a known method, for example, by mixing a polymer precursor and a solvent, then dispersing strontium aluminate in the mixture into the polymer precursor, electrospinning the resulting mixture Fiber. The fibers thus produced are oxidized and carbonized to finally be made into porous fibers containing strontium aluminate.
또한 본 발명에서는 강도를 보강하기 위한 충진재로 시멘트 100중량부에 대해 실리카 5 내지 20중량부가 배합되도록 하는 예를 제시하고 있다. In the present invention, an example is shown in which 5 to 20 parts by weight of silica is blended with 100 parts by weight of a cement as a filler for reinforcing strength.
더욱 바람직하게는 상기 실리카는 그 외주연에 수지코팅층이 도포된 것이 사용되도록 하는 바, 실리카를 액상수지에 함침하여 수지코팅층이 도포된 실리카를 배합하도록 하는 것이다. 물론 액상수지에 함침하여 수지코팅층이 도포된 실리카는 건조과정을 거치도록 한 후에 배합되도록 하는 것이다. More preferably, the silica is coated with a resin coating layer on its outer periphery, so that silica impregnated with the liquid resin is mixed with the silica coated with the resin coating layer. Of course, the silica impregnated with the liquid resin and coated with the resin coating layer is subjected to a drying process so as to be blended.
이렇게 수지코팅층이 외주연에 도포된 실리카를 사용하는 이유는 페이스트로 가해지는 다양한 외부충격을 완화시키도록 하는 것이며, 페이스트에서 동결융해 등 온도변화에 따라 수축 및 이완을 수지코팅층이 완화시키도록 하여 균열 등을 방지하도록 하는 것이다. The reason why the resin coating layer is applied to the outer circumferential surface of the resin is to mitigate various external impacts applied by the paste. The resin coating layer relaxes and relaxes the resin due to the temperature change such as freezing and thawing in the paste, And the like.
즉 충진재가 강도를 보강하도록 함과 동시에 페이스트의 탄성 및 복원력이 발현되도록 하여 물리적 충격이나, 온도변화 등에 의한 수축 및 이완을 완화시키도록 하기 위한 것이다. That is, the filler material reinforces the strength and at the same time, the elasticity and the restoring force of the paste are developed so as to alleviate the shrinkage and relaxation due to physical impact, temperature change, and the like.
여기서 실리카는 재질자체로 다수의 공극이 형성되는 바, 이러한 공극에 의해 수지코팅층과 실리카의 부착력이 향상되도록 하는 것이며, 이러한 수지코팅층의 도포에 의해 타 조성으로서 상기 비나파스수지 등과의 부착력도 향상시키도록 하는 것이다. Here, the silica is formed of a large number of voids by the material itself. The adhesion of the resin coating layer to the silica is improved by the voids. The adhesion of the resin coating layer to the nonapaz resin or the like is improved by applying the resin coating layer .
여기서 수지는 그 종류를 한정하지 않으나 MMA수지 등 탄성력이 높은 재질을 사용하는 것이 타당하다. The resin is not limited in its kind but it is appropriate to use a material having high elasticity such as MMA resin.
더욱 바람직하게는 상기 수지코팅층에는 유기 또는 무기 섬유가 함유됨을 특징으로 한다. 즉 액상수지에 유기 또는 무기섬유가 함유되도록 한 후에 실리카를 액상수지에 함침시켜 수지코팅층에 유기 또는 무기 섬유가 함유되도록 함으로써 함유된 유기 또는 무기 섬유가 타 조성과의 부착력을 향상시켜 조성의 탈리에 의한 강도저하 등을 방지하도록 하는 것이다. More preferably, the resin coating layer contains organic or inorganic fibers. That is, after the organic resin or inorganic fiber is contained in the liquid resin, the organic resin or inorganic fiber contained in the resin coating layer is impregnated with the liquid resin to improve the adhesion of the organic or inorganic fiber to the other composition, And the like.
Claims (5)
A reinforcing fiber, 0.5 to 1 part by weight of a reinforcing fiber, 1 to 3 parts by weight of a mortar powder particle dispersing agent, 2 to 5 parts by weight of a reinforcing fiber, 2 to 5 parts by weight of a reinforcing fiber, 0.5 to 1 part by weight of zinc stearate and 1 to 3 parts by weight of silicate, wherein 0.5 to 2 parts by weight of a powdery resin having a cation exchanger is added to remove sodium ions remaining in the paste by the reaction of the silicate By weight based on the total weight of the composition.
시멘트 100중량부에 대해 실리카 5 내지 20중량부가 배합되되, 실리카는 그 외주연에 수지코팅층이 도포된 것을 특징으로 하는 탄성 모르타르 조성물.
The method according to claim 1,
Wherein 5 to 20 parts by weight of silica is blended with 100 parts by weight of cement, and the resin is coated with a resin coating layer on the outer periphery of the silica.
상기 수지코팅층에는 유기 또는 무기 섬유가 함유됨을 특징으로 하는 탄성 모르타르 조성물. 5. The method of claim 4,
Wherein the resin coating layer contains organic or inorganic fibers.
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| KR102684088B1 (en) * | 2024-03-11 | 2024-07-12 | (주) 밀성산업건설 | Reinforcement method for underground conduits and structures |
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| KR100191355B1 (en) | 1996-08-10 | 1999-06-15 | 김창영 | Lightweight concrete characteristic improvement material and light weight concrete using the same |
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