KR20200089357A - Polymer quickly hardening concrete composition and bridge expanding and contracting connecting portion repairing method thereusing - Google Patents
Polymer quickly hardening concrete composition and bridge expanding and contracting connecting portion repairing method thereusing Download PDFInfo
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- 229920000642 polymer Polymers 0.000 title claims abstract description 39
- 239000000203 mixture Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000004567 concrete Substances 0.000 title claims description 54
- 239000004568 cement Substances 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000003607 modifier Substances 0.000 claims abstract description 19
- 239000011083 cement mortar Substances 0.000 claims abstract description 17
- 239000011575 calcium Substances 0.000 claims abstract description 16
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 15
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000654 additive Substances 0.000 claims abstract description 12
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 12
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 12
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 12
- 235000011116 calcium hydroxide Nutrition 0.000 claims abstract description 12
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 claims description 25
- 239000002893 slag Substances 0.000 claims description 18
- 230000008439 repair process Effects 0.000 claims description 16
- 239000004570 mortar (masonry) Substances 0.000 claims description 14
- 239000004816 latex Substances 0.000 claims description 12
- 229920000126 latex Polymers 0.000 claims description 12
- 239000011398 Portland cement Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 6
- 229920001971 elastomer Polymers 0.000 claims description 4
- 239000005060 rubber Substances 0.000 claims description 4
- 230000000996 additive effect Effects 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 230000015271 coagulation Effects 0.000 claims description 3
- 238000005345 coagulation Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 229910021487 silica fume Inorganic materials 0.000 claims description 3
- 239000013530 defoamer Substances 0.000 claims description 2
- 239000002352 surface water Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 239000002986 polymer concrete Substances 0.000 abstract 4
- 229910052925 anhydrite Inorganic materials 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 14
- 238000012360 testing method Methods 0.000 description 13
- 238000010276 construction Methods 0.000 description 12
- 239000011230 binding agent Substances 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 7
- 238000006703 hydration reaction Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000036571 hydration Effects 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000005431 greenhouse gas Substances 0.000 description 3
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- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 235000010755 mineral Nutrition 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000002174 Styrene-butadiene Substances 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical group C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 239000000499 gel Substances 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 239000011115 styrene butadiene Substances 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910001854 alkali hydroxide Inorganic materials 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
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- 239000003822 epoxy resin Substances 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000007589 penetration resistance test Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
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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
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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
- 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
- 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
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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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/06—Oxides, Hydroxides
- C04B22/062—Oxides, Hydroxides of the alkali or alkaline-earth metals
- C04B22/064—Oxides, Hydroxides of the alkali or alkaline-earth metals of the alkaline-earth metals
-
- 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
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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
- C04B28/14—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 calcium sulfate cements
- C04B28/16—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 calcium sulfate cements containing anhydrite, e.g. Keene's cement
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- C—CHEMISTRY; METALLURGY
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- C04B7/00—Hydraulic cements
- C04B7/02—Portland cement
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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
- C04B7/00—Hydraulic cements
- C04B7/32—Aluminous cements
- C04B7/323—Calcium aluminosulfate cements, e.g. cements hydrating into ettringite
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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- C—CHEMISTRY; METALLURGY
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- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/10—Accelerators; Activators
- C04B2103/14—Hardening accelerators
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/20—Retarders
- C04B2103/22—Set retarders
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/34—Flow improvers
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/50—Defoamers, air detrainers
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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
- C04B2111/72—Repairing or restoring existing buildings or building 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)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
Description
본 발명은 폴리머 초속경 콘크리트 조성물 및 이를 활용한 교량 신축이음 보수공법에 관한 것이다.The present invention relates to a polymer super-hard concrete composition and a bridge construction joint repair method using the same.
특히, 본 발명은 안정적 강도발현 및 내구성능 확보가 가능한 분말상태의 무기계 혼화재인 고로수쇄슬래그 미분말에 단기간 경화특성과 고강도성의 효과를 낼 수 있도록 하는 칼슘설포알루미네이트계 클링커, 칼슘알루미네이트계 클링커, 보통포틀랜드 시멘트, 무수석고, 소석회, 첨가제 등을 첨가하여 제조된 저발열 특수시멘트 및 골재, 폴리머 개질제, 물을 포함하여 구성된 것이다. In particular, the present invention is a calcium sulfoaluminate-based clinker, calcium aluminate-based clinker that enables short-term curing characteristics and high-intensity effects on the fine powder of blast furnace crushed slag, which is a powder-based inorganic admixture capable of stably exhibiting strength and durability. It is composed of ordinary Portland cement, gypsum anhydride, slaked lime, and low-heat special cement and aggregates, polymer modifiers, and water produced by adding additives.
본 발명은 더 구체적으로, 정량화되고 정제된 골재와 모래를 공장에서 가공 및 제조하여 공급함으로서 고품질의 폴리머 초속경 콘크리트를 활용하여 교량의 신축이음부 보수공사 및 콘크리트 도로보수공사에 적용하도록 한 것이다.More specifically, the present invention is to apply the high-quality polymer superhard concrete to the repaired joints of the bridge and the concrete road repair work by supplying high-quality polymer superhard concrete by processing and manufacturing quantified and refined aggregates and sand in a factory.
본 발명의 초속경 시멘트 몰탈은 특허 제10-1099074호의 저발열 초속경시멘트와 정제된 5호규사로 초속경 시멘트 몰탈을 제조하고, 공장에서 가공된 15mm 정제된 골재를 초속경 시멘트 몰탈과 물과 라텍스를 함께 혼합하여 제조한 초속경 라텍스 개질 콘크리트를 이동식 혼합기와 이동식 배출 콘베이어를 이용하여 신속하게 교량의 신축이음부 보수공사에 활용코자 하는 것이다.The cemented carbide mortar of the present invention is manufactured with cemented mortar of cemented carbide with low heat generation cemented cement of Patent No. 10-1099074 and refined No. 5 silica, and 15 mm refined aggregate processed in the factory is mixed with cemented cement mortar and water. It is intended to utilize the super-hard latex modified concrete produced by mixing latex together with a mobile mixer and a mobile discharge conveyor to quickly repair the new joints of bridges.
종래에는 초속경 시멘트와 현장에서 구입한 비규격화되고 협잡물, 토분, 석분, 유기물질, 부엽토분 등을 함유한 골재와 모래로 제조하여 압축강도 저하와 균열 저항성에 취약한 초속경 콘크리트를 교량의 신축이음부 보수공사 및 콘크리트 도로보수공사에 적용함으로서 품질저하의 원인이 되었다.Conventionally, the construction of bridges is made of super-hard cement and super-hard concrete, which is vulnerable to reduced compressive strength and crack resistance, made of non-standardized aggregates and sands containing debris, soil powder, stone powder, organic materials, and debris. It was the cause of deterioration in quality by applying it to the repair work for the concrete and the concrete road repair work.
종래의 경우에는 콘크리트 도로포장 보수시 강도발현이 빠른 초속경 시멘트 콘크리트를 사용하고 있으나, 초속경 시멘트는 속경성을 갖는 클링커를 사용하여 제조되는 수화광물인 에트린가이트(3CaO·Al2O3·3CaSO4·32H2O)의 결정 전이에 따라 장기강도가 저하되거나, 강도 발현율이 낮아지는 특성을 나타내어 장기강도의 안정성이 요구되는 구조물의 재료로서는 사용상 한계를 지니고 있다.In the conventional case, super fast cement cement is used, which has high strength when repairing concrete road pavement, but super fast cement is hydrinite (3CaO, Al2O3, 3CaSO4, 32H2O), which is a hydrated mineral produced using clinker with fast hardness. ) Shows a property in which the long-term strength decreases or the strength expression rate decreases according to the crystal transition of ), and thus has a limitation in use as a material for a structure requiring stability of the long-term strength.
또한, 시멘트 수화반응시 높은 수화열과 건조수축으로 인한 콘크리트 내부의 균열 및 응력을 발생시켜 콘크리트 포장이 다양한 형태의 파손을 일으키는 원인이 되고 있다.In addition, during the cement hydration reaction, high hydration heat and cracks and stresses in the concrete due to dry shrinkage cause concrete pavement to cause various types of damage.
이와 더불어 최근 건설 분야에서는 시멘트 사용을 최소화하고, 산업부산물의 재활용을 통한 환경오염 방지와 온실가스 배출 감소 및 에너지 절약이 가능하여 자원 이용효율을 향상시킬 수 있는 친환경 콘크리트 개발에 관한 연구가 활발히 진행되고 있는 실정이다.In addition, recently, in the construction field, research on the development of eco-friendly concrete that minimizes the use of cement, prevents environmental pollution through recycling of industrial by-products, reduces greenhouse gas emissions, and saves energy, improves resource utilization efficiency. That is true.
이중 산업부산물의 고로수쇄슬래그 미분말은 그 자체로는 경화되지 않지만, 잠재수경성이 있어 알칼리나 황산염 자극에 의해 경화되는 특성이 있는 것으로 널리 알려져 있다.The fine powder of the blast furnace crushed slag of industrial by-products is not cured by itself, but it is widely known that it has a latent hydraulic property and is cured by alkali or sulfate stimulation.
국내에서는 대한토목학회에서 "고로 미분말을 사용한 콘크리트의 설계시공지침(안)"을 마련하여 콘크리트 제조의 혼화재료 일종으로 고로슬래그 사용에 기초를 다졌으며, 이후 한국산업규격(KS F 2563) 제정 및 고시(1997년)를 통하여 사용의 확대를 도모하는 노력을 지속적으로 수행하였다.In Korea, the Korean Society of Civil Engineers prepared the "Guideline for the Design and Construction of Concrete Using Blast Furnace Powder" to lay the foundation for the use of blast furnace slag as a material for mixing concrete, and later enacted the Korean Industrial Standard (KS F 2563) and Through the announcement (1997), efforts have been made to continuously expand the use.
고로수쇄슬래그는 콘크리트를 치밀한 미세구조로 형성하여 수밀성을 높이기 때문에 수분 및 화학물질의 이동이나 확산을 억제시킬 수 있고, 내수성과 염해에 대한 높은 저항성이 요구되는 구조물용 콘크리트에 사용되고 있다.The blast furnace slag is used for concrete for structures that can suppress the movement or diffusion of moisture and chemicals because it forms a concrete with a dense microstructure, thereby increasing watertightness, and can suppress the movement and diffusion of moisture and chemicals.
본 발명은 상기한 바와 같은 문제점을 해결하기 위해 안출된 것으로, 고로수쇄슬래그 미분말을 활용하여 저발열, 속경성의 특성을 갖는 시멘트를 제조하고, 콘크리트의 안정성, 내구성, 내저항성 등의 특성을 극대화시키기 위한 콘크리트 조성물을 제공하는 것을 그 목적으로 한다.The present invention has been devised to solve the problems as described above, and manufactures cement having characteristics of low heat generation and rapid hardening by utilizing fine powder of blast furnace slag, maximizing properties such as stability, durability, and resistance of concrete. An object of the present invention is to provide a concrete composition.
본 발명의 다른 목적은 도로포장 보수시 교통개방시간에 따른 양생기간 및 강도발현 조절이 가능하고, 기존 포장체와의 일체성 부여 및 콘크리트의 투수저항성, 동결융해저항성 등의 내구성능 및 부착성능을 향상시킬 수 있는 정량화된 폴리머 초속경 콘크리트 조성물 및 이를 활용한 교량 신축이음 보수공법을 제공하는 것을 목적으로 한다.Another object of the present invention is to control the curing period and strength expression according to the opening time of traffic when repairing road pavement, and provide the integrity with existing pavement and durability and adhesion performance such as water permeability resistance, freezing and thawing resistance of concrete. It is an object of the present invention to provide a quantified polymer superhard concrete composition that can be improved and a bridge construction joint repair method using the same.
본 발명의 또 다른 목적은 콘크리트의 고내구성 확보가 가능한 분말상태의 무기계 혼화재인 고로수쇄슬래그 미분말에 칼슘 설포알루미네이트계 클링커와 무수석고 및 소석회, 첨가제 등을 첨가하여 단기간(3~4시간, 12시간, 24시간) 내에 실용강도를 나타냄과 동시에, 지속적인 강도발현과 안정성을 유지할 수 있고, 아울러 산업부산물을 활용하여 자원이용효율의 향상시킬 수 있을 뿐만 아니라, 시멘트 제조시 발생하는 온실가스 배출 저감 및 에너지 절약이 가능한 친환경적이고, 내수성과 염해에 대한 높은 저항성이 요구되는 저발열 특수 초속경 시멘트와 경제적이고 규격화된 골재를 혼합하여 신축이음 보수 등에서 유용한 폴리머 초속경 콘크리트를 제공하는 것을 목적으로 한다.Another object of the present invention is to add a calcium sulfoaluminate-based clinker, anhydrous gypsum and slaked lime, additives, etc. to the fine powder of the blast furnace crushed slag, which is a powdered inorganic admixture capable of ensuring high durability of concrete, for a short period of time (3-4 hours, 12 In addition to showing practical strength within 24 hours), it is possible to maintain continuous strength development and stability, improve industrial resource utilization efficiency, and reduce greenhouse gas emissions generated during cement production. It is an object of the present invention to provide a polymer superhard concrete useful in repairing and repairing new joints by mixing an economical and standardized aggregate with low-heat special superhard cement that requires energy-saving, eco-friendly, high water resistance, and high resistance to salt damage.
본 발명의 또 다른 목적은 신축이음장치의 정상적인 기능 수행 여부를 판단 가능하도록 하고, 이상 발생시 신축이음부를 보수할 수 있도록 한, 폴리머 초속경 콘크리트 조성물을 활용한 교량 신축이음 보수공법을 제공하는데 있다.Another object of the present invention is to provide a method for repairing a bridge expansion joint using a polymer superhard concrete composition, which makes it possible to determine whether a normal function of the expansion joint apparatus is performed, and repairs the expansion joint when an abnormality occurs. .
상기 목적을 달성하기 위한 본 발명의 폴리머 초속경 콘크리트 조성물은,The polymer superhard concrete composition of the present invention for achieving the above object,
저발열 특수시멘트 몰탈 50~60 중량%와, 골재 32~42 중량%와, 폴리머 개질제 3~5 중량%와, 물 3~5 중량%를 포함하여 이루어진 것을 특징으로 한다.It is characterized by comprising 50 to 60% by weight of low-heat special cement mortar, 32 to 42% by weight of aggregate, 3 to 5% by weight of polymer modifier, and 3 to 5% by weight of water.
본 발명에서 저발열 특수시멘트 몰탈은Low-heat special cement mortar in the present invention
분말상태의 무기계 혼화재인 고로수쇄슬래그 미분말 2~40 중량%와, 보통포틀랜드 시멘트 10~30 중량%와, 칼슘설포알루미네이트계 클링커 15~40 중량%와, 칼슘알루미네이트계 클링커 2~10중량%와, 무수석고 10~30 중량%와, 소석회 2~5 중량%와, 첨가제 2~5 중량%로 이루어진 것을 특징으로 한다. 2-40% by weight of fine powder of blast furnace crushed slag, an inorganic admixture in powder form, 10-30% by weight of ordinary Portland cement, 15-40% by weight of calcium sulfoaluminate-based clinker, and 2-10% by weight of calcium aluminate-based clinker Wow, characterized by consisting of 10 to 30% by weight of anhydrous gypsum, 2 to 5% by weight of slaked lime, and 2 to 5% by weight of additives.
본 발명에서, 첨가제는 In the present invention, the additive is
저발열 특수시멘트 몰탈의 전체 중량 대비 실리카 퓸 1.0~4.0 중량%와, 고유동화제 0.5~2.0 중량%와, 경화촉진제 0.1~0.5 중량%와, 응결지연제 0.1~1.0 중량%와, 소포제 0.1~0.3 중량%로 이루어진 것을 특징으로 한다.1.0-4.0% by weight of silica fume, 0.5-2.0% by weight of high flow agent, 0.1-0.5% by weight of curing accelerator, 0.1-1.0% by weight of coagulation retarder, and 0.1% of antifoam It is characterized by consisting of 0.3% by weight.
본 발명에 따른 저발열 초속경 몰탈의 조성물은The composition of the low-heat superhard mortar according to the present invention
저발열 특수시멘트 몰탈 30~40 중량%와, 정제된 5호사 60~70중량%로 이루어진 것을 특징으로 한다. It is characterized by consisting of 30 to 40% by weight of low-heat special cement mortar and 60 to 70% by weight of refined No. 5 yarn.
본 발명에 따른 폴리머 초속경 콘크리트 조성물은 Polymer superhard concrete composition according to the present invention
저발열 특수시멘트 몰탈 50~60 중량%와, 골재 32~42 중량%와, 폴리머 개질제 3~5 중량%와, 물 3~5 중량%를 포함하여 이루어지진 것을 특징으로 한다. It is characterized by comprising 50 to 60% by weight of low-heat special cement mortar, 32 to 42% by weight of aggregate, 3 to 5% by weight of polymer modifier, and 3 to 5% by weight of water.
상기 목적을 달성하기 위한 본 발명의 교량의 신축 이음부 보수공법은 The new joint repair method of the bridge of the present invention for achieving the above object is
좌우 두 개의 교량의 교면에 일치하도록 두 교량을 서로 연결하는 교면지지부; A bridge support portion connecting the two bridges to each other so as to match the bridges of the two right and left bridges;
상기 교면지지부와 일체화되도록 위치된 내부지지부; An internal support positioned to be integrated with the bridge support;
상기 교량의 표면수 및 이물질이 신축이음장치를 통하여 교량의 하부로 흐르는 것을 방지하도록 상기 내부지지부 사이에 열융착 또는 접착재로 접착되는 신축고무; Elastic rubber that is adhered with heat-sealed or adhesive material between the inner supports to prevent the surface water and foreign matter of the bridge from flowing to the lower portion of the bridge through the elastic joint;
신축이음장치를 교량 상부구조물에 고정시키기 위해 신축이음장치 양 옆에 형성되는 신축이음부; Telescopic joints formed on both sides of the telescopic joint to secure the telescopic joint to the bridge superstructure;
상기 교면지지부의 하측에 일정길이 종으로 연장되도록 설치되는 연장부;An extension part installed to extend longitudinally at a length below the bridge support part;
상기 연장부에 구성된 센서모듈; 및 A sensor module configured in the extension portion; And
상기 센서에서 발생된 신호가 무선통신망을 통해 전송되어 오면 이를 처리하여 두 교량이 정해진 범위내에서 신축하는지 판단하는 관제센터로 이루어지는 신축이음장치에서, When a signal generated from the sensor is transmitted through a wireless communication network, it is processed in a telescopic joint device consisting of a control center that processes and determines whether two bridges expand or contract within a predetermined range.
상기 신축이음부에는 The expansion joint
저발열 초속경 몰탈 50~60 중량%;50-60% by weight of low-heat super rapid mortar;
골재 32~42 중량%;Aggregate 32-42% by weight;
폴리머 개질제 3~5 중량%;3 to 5% by weight of a polymer modifier;
물 3~5 중량%를 포함하여 이루어진 폴리머 초속경 콘크리트의 조성물을 혼합하여 제조한 초속경 라텍스 개질 콘크리트를 이동식 혼합기와 이동식 배출 콘베이어를 이용하여 신속하게 타설하고, Rapid pouring of a superhard latex modified concrete prepared by mixing a composition of polymer superhard concrete consisting of 3 to 5% by weight of water using a mobile mixer and a mobile discharge conveyor,
상기 저발열 초속경 몰탈은 저발열 특수시멘트 30~40 중량%와 정제된 5호사 60~70중량%로 이루어진 것을 특징으로 한다.The low-heat super-hard mortar is characterized by consisting of 30 to 40% by weight of low-heat special cement and 60 to 70% by weight of refined No. 5 yarn.
본 발명에 따른 저발열 특수 시멘트의 구성 성분 중 무기계 혼화재인 고로수쇄슬래그 미분말, 칼슘설포알루미네이트계 클링커, 칼슘알루미네이트계 클링커의 함량 조절에 따른 양생시간 및 강도조절이 가능한 것을 특징으로 한다.Among the components of the special cement of low heat generation according to the present invention, it is characterized in that curing time and strength can be controlled by adjusting the content of the blast furnace crushed slag fine powder, calcium sulfoaluminate-based clinker, and calcium aluminate-based clinker.
또한, 특허 제10-1099074호의 저발열 초속경 시멘트를 활용하여 정제된 5호규사를 시멘트 중량부 2.5배를 혼합하여 초속경 시멘트 몰탈을 만들고, 골재를 시멘트 중량부 2배를 포장하여 현장에서 초속경 시멘트 몰탈과 공장에서 가공하여 정제한 골재를 물과 라텍스를 함께 혼합하여 제조한 초속경 라텍스 개질 콘크리트를 이동식 혼합기와 이동식 배출 콘베이어를 이용하여 신속하게 교량의 신축이음부 보수공사에 적용한 것이다.In addition, using the low-heat super-hard cement of Patent No. 10-1099074, the refined No. 5 sand is mixed with 2.5 times the cement weight part to make a super-hard cement mortar. The super cemented latex modified concrete prepared by mixing light cement latex and factory-processed aggregates together with water and latex was quickly applied to the repair work of new joints of bridges using a mobile mixer and a mobile discharge conveyor.
상기 특허 제10-1099074호의 저발열 초속경 시멘트는 The low-heat superhard cement of the patent No. 10-1099074
저발열 특수시멘트 16~19 중량%;Low heat special cement 16~19 wt%;
골재 72~76 중량%;Aggregate 72-76% by weight;
폴리머 개질제 3~5 중량%; 및3 to 5% by weight of a polymer modifier; And
물 3~5 중량%;를 포함하여 이루어지고,3 to 5% by weight of water;
상기 저발열 특수시멘트는The low heat special cement
분말상태의 무기계 혼화재인 고로수쇄슬래그 미분말 2~40 중량%와,2-40% by weight of fine powder of blast furnace crushed slag, an inorganic admixture in powder form,
통포틀랜드 시멘트 10~30 중량%와,10-30% by weight of total Portland cement,
칼슘설포알루미네이트계 클링커 15~40 중량%와,15 to 40% by weight of calcium sulfoaluminate-based clinker,
칼슘알루미네이트계 클링커 2~10중량%와,2-10% by weight of calcium aluminate-based clinker,
무수석고 10~30 중량%와,10-30% by weight of anhydrous gypsum,
소석회 2~5 중량%와,2-5% by weight of slaked lime,
첨가제 2~5 중량%로 이루어진다.It consists of 2 to 5% by weight of additives.
본 발명에 따른 폴리머 초속경 콘크리트 조성물은 다음과 같은 효과가 있다.Polymer superhard concrete composition according to the present invention has the following effects.
첫째, 시멘트 제조시 산업부산물 재활용을 통한 온실가스 배출 및 에너지 소모 절감이 가능하고, 자원이용 효율을 향상시킬 수 있어 경제적이고 친환경적이며 안정적인 강도발현성과 균열제어 성능 향상으로 내구성이 우수한 보수용 특수시멘트를 제공할 수 있다.First, it is possible to reduce greenhouse gas emissions and energy consumption by recycling industrial by-products during cement manufacturing, and improve resource utilization efficiency. Can provide.
둘째, 단기간(3~4시간, 12시간, 24시간) 내에 실용강도 확보가 가능하고, 안정적이고 지속적인 강도발현성을 통하여 콘크리트 도로포장 보수시 교통개방시간을 단축할 수 있다.Second, practical strength can be secured within a short period of time (3-4 hours, 12 hours, 24 hours), and traffic opening time can be shortened when repairing concrete road pavement through stable and continuous strength expression.
셋째, 부착성능 향상을 통한 기존 포장체와의 일체화가 가능하고, 투수저항성, 동결융해저항성 등의 내구성을 향상시켜 다양한 교통하중과 환경조건에 노출된 도로포장의 긴급공사시 적용할 수 있는 콘크리트 보수재료를 제공할 수 있다.Third, it is possible to integrate with existing pavement through improved adhesion performance, and improve durability such as water permeation resistance, freeze-thaw resistance, etc., and repair concrete that can be applied during emergency construction of road pavement exposed to various traffic loads and environmental conditions. Materials can be provided.
넷째, 저발열 특수시멘트의 구성 성분 중 무기계 혼화재인 고로수쇄슬래그 미분말, 칼슘설포알루미네이트계 클링커, 칼슘알루미네이트계 클링커의 함량 조절을 통하여 콘크리트 조성물의 양생시간 및 강도조절이 가능하여 사용 특성에 따른 최적의 설계 시공을 할 수 있다. Fourth, it is possible to control the curing time and strength of the concrete composition by controlling the content of the blast furnace crushed slag fine powder, calcium sulfoaluminate-based clinker, and calcium aluminate-based clinker, which are inorganic admixtures among the components of the low-heat special cement. Optimal design construction is possible.
다섯째, 공장에서 정제되고 규격화된 골재를 활용함으로서 콘크리트의 품질을 안정적으로 확보할 수 있다.Fifth, the quality of concrete can be stably secured by utilizing refined and standardized aggregates in factories.
여섯째, 신축이음장치의 정상적인 기능 수행 여부의 판단이 가능하고, 이상 발생시 신축이음부를 보수할 수 있다.Sixth, it is possible to determine whether or not the expansion joint device performs a normal function, and when an abnormality occurs, the expansion joint can be repaired.
도 1은 본 발명의 폴리머 초속경 콘크리트 조성물을 활용한 교량 신축이음 공법이 적용되는 교량의 신축이음장치 구조도.
도 2는 본 발명이 적용되는 교량의 신축이음장치의 정상적인 기능수행 여부를 판단하는 제어 구성도. 1 is a structural diagram of a stretchable joint device of a bridge to which the stretchable bridge construction method using the polymer superhard concrete composition of the present invention is applied.
Figure 2 is a control configuration for determining whether the normal function of the expansion joint device of the bridge to which the present invention is applied.
본 발명에 따른 폴리머 초속경 콘크리트 조성물은,Polymer superhard concrete composition according to the present invention,
저발열 특수시멘트 몰탈 50~60 중량%와, 골재 32~42 중량%와, 폴리머 개질제 3~5 중량%와, 물 3~5 중량%;를 포함하여 이루어지고,50 to 60% by weight of low-heat special cement mortar, 32 to 42% by weight of aggregate, 3 to 5% by weight of polymer modifier, and 3 to 5% by weight of water;
상기 골재는 전체 중량 대비 전제된 15mm 골재 32~42 중량%인 것이 바람직하다.It is preferable that the aggregate is 32 to 42% by weight of the total 15 mm aggregate as compared to the total weight.
상기 저발열 특수시멘트 몰탈은The low-heat special cement mortar
분말상태의 무기계 혼화재인 고로수쇄슬래그 미분말 2~40 중량%와, 보통포틀랜드 시멘트 10~30 중량%와, 칼슘설포알루미네이트계 클링커 15~40 중량%와, 칼슘알루미네이트계 클링커 2~10중량%와, 무수석고 10~30 중량%와, 소석회 2~5 중량%와, 첨가제 2~5 중량%를 혼합하여 이루어진다.2-40% by weight of fine powder of blast furnace crushed slag, an inorganic admixture in powder form, 10-30% by weight of ordinary Portland cement, 15-40% by weight of calcium sulfoaluminate-based clinker, and 2-10% by weight of calcium aluminate-based clinker Wow, it is made by mixing 10 to 30% by weight of anhydrous gypsum, 2 to 5% by weight of slaked lime, and 2 to 5% by weight of additives.
상기 첨가제는 상기 저발열 특수시멘트 몰탈의 전체 중량 대비 실리카 퓸 1.0~4.0 중량%와, 고유동화제 0.5~2.0 중량%와, 경화촉진제 0.1~0.5 중량%와, 응결지연제 0.1~1.0 중량%와,소포제 0.1~0.3 중량%로 이루어진다.The additive is 1.0 to 4.0% by weight of silica fume, 0.5 to 2.0% by weight of a high-activating agent, 0.1 to 0.5% by weight of a curing accelerator, and 0.1 to 1.0% by weight of a coagulation retarder, relative to the total weight of the low-heat special cement mortar. , Defoamer 0.1 to 0.3% by weight.
상기 폴리머 개질제는 조성물의 부착성 및 작업성을 개선하기 위하여 사용하는 것으로, 입자간의 자착성 및 흡착성을 갖는 점성적 성질 및 계면활성작용으로 콘크리트의 첨가시 유동성 증가를 통한 작업성 향상 및 단위수량을 감소시킬 수 있다.The polymer modifier is used to improve the adhesion and workability of the composition, improving the workability and increasing the unit quantity by increasing the fluidity when adding concrete due to the viscous properties and interfacial activity with adhesion and adsorption properties between particles. Can be reduced.
또한, 시멘트 페이스트 및 골재 사이를 라텍스 입자로 채우고, 필름막을 형성하여 콘크리트의 수밀성과 내염화 이온 투과성능 및 기존 구체와의 부착성능 향상이 가능하다.In addition, the latex particles are filled between the cement paste and the aggregate, and a film film is formed to improve the water tightness of the concrete and the permeation resistance of chloride ions and the adhesion performance with existing spheres.
이때, 상기 폴리머 개질제는 스틸렌(Styrene) 및 부타디엔(Butadiene)으로 이루어진 단량체 혼합물을 중합 반응하여 제조된 미세 구형의 폴리머 입자를 계면활성제로 코팅하여 물속에 분산시킨 반투명 상태의 수용액인 SB(Styrene-Butadiene) 라텍스를 사용하는 것이 가장 바람직하며, PAE 에멀젼, EVA 에멀젼, 에폭시 수지, 아크릴 수지 및 폴리에스터 등도 사용 가능하다.At this time, the polymer modifier is SB (Styrene-Butadiene), which is a semi-transparent aqueous solution in which micro-spherical polymer particles prepared by polymerizing a monomer mixture made of styrene and butadiene are coated with a surfactant and dispersed in water. ) It is most preferable to use latex, and PAE emulsion, EVA emulsion, epoxy resin, acrylic resin and polyester may also be used.
여기서 상기 폴리머 개질제는 3~5 중량%의 범위에서 사용되는 것이 바람직하며, 이는 폴리머 개질제의 사용량이 3% 미만이면 조성물의 부착성능이 떨어져 소망하는 성능을 확보할 수 없고, 5%를 초과할 경우에는 부착성능, 작업성 등에서 좋은 물성을 얻을 수 있으나, 제조원가의 상승으로 인해 경제적이지 못하기 때문이다.Here, it is preferable that the polymer modifier is used in a range of 3 to 5% by weight, and if the amount of the polymer modifier used is less than 3%, the adhesion performance of the composition is lowered and the desired performance cannot be secured, and when it exceeds 5% This is because it is possible to obtain good physical properties in terms of adhesion performance and workability, but it is not economical due to an increase in manufacturing cost.
상기 저발열 특수시멘트 몰탈의 무기계 혼화재(고로수쇄슬래그 미분말)는 수화반응 시 발생하는 수화열을 저감시켜 콘크리트에 발생하는 균열의 억제 및 예방이 가능하고, 수화반응 생성물인 수산화칼슘이나 수산화알칼리 혼합물을 고정하여 조성물 내부의 공극을 채움으로써 침투성 및 화학물질에 대한 저항성을 개선하여 콘크리트의 내구성을 증진시키는 효과가 있다.The low-heating special cement mortar's inorganic admixture (blast furnace crushed slag fine powder) can suppress and prevent cracks in concrete by reducing the heat of hydration generated during the hydration reaction, and fix the hydration product calcium hydroxide or alkali hydroxide mixture. By filling the voids inside the composition, there is an effect of improving the durability of concrete by improving permeability and resistance to chemicals.
즉 상기 무기계 혼화재인 고로수쇄슬래그 미분말은 슬래그에 존재하는 CaO 및 SiO2는 물과 반응하여 시멘트의 특질을 지닌 C-S-H 겔(C=CaO, S=SiO2, H=H2O)을 형성하게 되고, C-S-H 겔의 형성은 초기 단계에서 응결시간을 가속시키고, 추후 단계에서 강도 발현에 기여하게 된다.That is, the pulverized slag fine powder, which is the inorganic admixture, reacts with CaO and SiO2 present in the slag to form CSH gels (C=CaO, S=SiO2, H=H2O) with the characteristics of cement, and the CSH gel The formation accelerates the setting time in the initial stage and contributes to the intensity development in the later stage.
아울러, 상기 칼슘설포알루미네이트계 클링커는 수화광물인 에트린자이트를 다량 생성할 뿐만 아니라, 수화 활성이 높고, 또한 상기 칼슘설포알루미네이트계 클링커와 칼슘알루미네이트계 클링커는 시멘트의 수화물인 Ca(OH)2, 소석회 및 석고의 SO3와 반응하여 팽창성, 속경성, 조강성 등의 특성을 나타내게 한다.In addition, the calcium sulfoaluminate-based clinker not only produces a large amount of hydrated mineral ethrinite, but also has a high hydration activity, and the calcium sulfoaluminate-based clinker and calcium aluminate-based clinker are Ca hydrates of cement. OH)2, reacts with SO3 of slaked lime and gypsum to show properties such as expandability, quick-hardness, and roughness.
그리고 상기 무수석고 및 소석회는 각각 수화광물인 에트린자이트의 형성과 초기강도를 향상시킬 목적으로 첨가된다.In addition, the anhydrous gypsum and slaked lime are added for the purpose of improving the formation and initial strength of ethrinite, a hydrated mineral, respectively.
더 나아가 상기 저발열 특수시멘트의 구성 성분 중 무기계 혼화재인 고로수쇄슬래그 미분말, 칼슘설포알루미네이트계 클링커, 칼슘알루미네이트계 클링커의 함량 조절을 통하여 콘크리트 조성물의 양생시간 및 강도조절이 가능하게 된다.Furthermore, it is possible to control the curing time and strength of the concrete composition by controlling the content of the blast furnace crushed slag fine powder, calcium sulfoaluminate-based clinker, and calcium aluminate-based clinker, which are inorganic admixtures among the components of the low-heat special cement.
즉 상기 무기계 혼화재, 칼슘설포알루미네이트 및 칼슘알루미네이트는 상기한 바와 같이 응결시간, 강도 및 각 특성들의 발현 속도나 정도가 그 함량에 따라 결정되기 때문에 이들의 함량을 조절하여 콘크리트 조성물의 양생시간 및 강도를 조절함으로써 사용 특성에 따른 최적의 설계 시공을 할 수 있게 된다.That is, since the inorganic admixture, calcium sulfoaluminate, and calcium aluminate, the setting time, strength, and the expression rate or degree of each characteristic are determined according to the content, as described above, the content thereof is adjusted to cure the curing time of the concrete composition and By adjusting the strength, it is possible to perform optimal design construction according to the use characteristics.
이하, 본 발명의 실시예를 통하여 더욱 상세하게 설명하기로 하나, 이는 본 발명의 이해를 돕기 위해 제시된 것으로 본 발명이 이에 한정되는 것을 아님을 밝혀둔다.Hereinafter, it will be described in more detail through an embodiment of the present invention, which is presented to help the understanding of the present invention and reveals that the present invention is not limited thereto.
(실시예 1)(Example 1)
신축이음 보수용 초속경 라텍스개질 콘크리트는 초속경 몰탈(결합재) 1200kg, 정제된 15mm 골재 900kg, 폴리머 개질제 80kg, 혼합수 84kg를 첨가한다.The super-hard latex modified concrete for the repair of new joints is added with 1200kg of super-hard mortar (binder), 900kg of refined 15mm aggregate, 80kg of polymer modifier, and 84kg of mixed water.
(실시예 2)(Example 2)
교면포장 보수용 초속경 라텍스개질 콘크리트는 초속경 몰탈(결합재) 1260kg, 정제된 15mm 골재 840kg, 폴리머 개질제 80kg, 혼합수 84kg를 첨가한다.For the repair of the superficial mirror latex modified concrete for repair of the surface packaging, 1260 kg of super-hard mortar (binder), 840 kg of purified 15 mm aggregate, 80 kg of polymer modifier, and 84 kg of mixed water are added.
(비교예 1)(Comparative Example 1)
초속경 몰탈 결합재 1462kg, 골재 775kg, 혼합수 132kg를 첨가한다.1462 kg of super fast mortar binder, 775 kg of aggregate, and 132 kg of mixed water are added.
이때, 각 실시예 및 비교예의 성분을 계량하여 강제식 교반믹서에 투입한 후 믹싱(mixing)하여 제조하였으며 하기 표 1은 실시예 및 비교예의 성분별 배합비를 나타낸 것이며, 표 2는 실시예 및 비교예에 대한 각종 시험결과를 나타낸 것이다.At this time, the components of each Example and Comparative Example were weighed and put into a forced stirring mixer, followed by mixing, and Table 1 below shows the mixing ratios of the components of Examples and Comparative Examples, and Table 2 shows Examples and Comparative Examples. It shows various test results for an example.
(MPa)Compressive strength
(MPa)
(MPa, 재령 28일)Flexural strength
(MPa, 28 days of age)
(MPa, 재령 28일)Bond strength
(MPa, 28 days of age)
(Coulomb, 재령 28일)Chlorine ion permeation time
(Coulomb, 28 days old)
시험예 1 : 압축강도 및 휨강도 측정 Test Example 1: Compressive strength and bending strength measurement
각 실시예 및 비교예의 시험결과는 상기 표 2와 같고 한국공업규격 KS F 2403, 2405 및 2408에 규정된 공시체 제작 및 강도측정방법에 의하여 실시하였다.The test results of each of the Examples and Comparative Examples are as shown in Table 2 above, and were performed by the method of manufacturing specimens and measuring strength according to Korean Industrial Standards KS F 2403, 2405 and 2408.
실시예 1 및 2가 비교예 1에 비해 재령 28일에서 더 큰 압축강도를 보이고 있으며 휨강도 역시 실시예 2, 실시예 1, 비교예 1 순으로 나타났다.Examples 1 and 2 showed a greater compressive strength at 28 days of age than Comparative Example 1, and the flexural strength was also in the order of Example 2, Example 1, and Comparative Example 1.
시험예 2 : 부착강도 측정 Test Example 2: Measurement of adhesion strength
각 실시예 및 비교예의 시험결과는 상기 표 2와 같다.The test results of each Example and Comparative Example are shown in Table 2 above.
실시예 1 및 2가 비교예 1에 비해 더 큰 부착강도를 나타내고 있음을 알 수 있다.It can be seen that Examples 1 and 2 show a larger adhesion strength than Comparative Example 1.
시험예 3 : 염소이온 투과시험Test Example 3: Chlorine ion permeation test
각 실시예 및 비교예의 시험결과는 상기 표 2와 같고, 시험방법은 KS F 2711(염소이온 침투저항시험)의 시험기준에 따라 평가하였다.The test results of each Example and Comparative Example are as shown in Table 2 above, and the test methods were evaluated according to the test standards of KS F 2711 (chlorine ion penetration resistance test).
각 실시예 및 비교예의 염소이온 투과시험에서는 비교예 1이 가장 낮은 투과량을 나타내었고, 그 다음으로 실시예 2, 실시예 1 순임을 알 수 있다.In the chlorine ion permeation test of each Example and Comparative Example, it can be seen that Comparative Example 1 exhibited the lowest permeation amount, followed by Example 2 and Example 1.
즉 콘크리트 조성물의 결합재로 본 발명에 따른 저발열 특수시멘트를 사용하는 경우 종래의 초속경 시멘트를 결합재로 사용하는 경우와 대비하여 압축강도에 있어서 지속적인 강도발현에 유리하고, 또한 압축강도, 부착강도, 염소이온 투과시험 등에서 종래의 초속경 시멘트를 결합재로 사용하는 경우에 비하여 월등한 성능을 갖는 것으로 나타났다.That is, when the low-heat special cement according to the present invention is used as a binder for a concrete composition, it is advantageous for continuous strength development in compressive strength, and also compressive strength, adhesion strength, compared to the case of using a conventional super hard cement as a binder. In the chlorine ion permeation test, it was found that it has superior performance compared to the case of using a conventional super hard cement as a binder.
다음에, 본 발명에 따른 교량 신축 이음 보수공법에 대해 설명한다.Next, the bridge construction joint repair method according to the present invention will be described.
도 1은 본 발명의 폴리머 초속경 콘크리트 조성물을 활용한 교량 신축이음 공법이 적용되는 교량의 신축이음장치 구조도이다. 도 2는 본 발명이 적용되는 교량의 신축이음장치의 정상적인 기능수행 여부를 판단하는 제어 구성도이다. 1 is a structural diagram of a stretchable joint device for a bridge to which the stretchable joint construction method using the polymer superhard concrete composition of the present invention is applied. FIG. 2 is a control configuration diagram for determining whether a telescopic joint of a bridge to which the present invention is applied performs normal function.
교량구조물은 온도변화 및 하중에 따라 팽창 수축되므로 교량의 상부구조물은 팽창 및 수축으로 인한 손상을 방지하기 위해 적정한 간격을 두고 설치된다. Since the bridge structure expands and contracts with temperature changes and loads, the superstructure of the bridge is installed at appropriate intervals to prevent damage due to expansion and contraction.
상기 교량의 상부구조물을 서로 연결하는 장치가 본 발명의 교량용 신축이음장치로써, 도 1에 도시한 바와 같이 좌우 두 개의 교량의 교면에 일치하도록 두 교량을 서로 연결하는 교면지지부(100)와, 상기 교면지지부(100)와 일체화되도록 위치된 내부지지부(200)와, 교량의 표면수 및 이물질이 본 발명의 신축이음장치를 통하여 교량의 하부로 흐르는 것을 방지하도록 상기 내부지지부(200) 사이에 열융착 또는 접착재로 접착되는 신축고무(300)와, 본 발명의 신축이음장치를 교량 상부구조물에 고정시키기 위해 신축이음장치 양 옆에 형설되는 신축이음부(400)와, 상기 교면지지부(100)의 하측에 일정길이 종으로 연장되도록 설치되는 연장부(500)를 포함하여 구성된다.An apparatus for connecting the superstructures of the bridges to each other is a telescopic joint device for a bridge of the present invention, and as shown in FIG. 1, a
상기 연장부(500)는 센서와 마이콤 등이 구성된 센서모듈(550)이 각각 매립 또는 부착 등의 방법으로 설치되어 어느 일방에서 송신된 신호가 타방에서 수신 가능하도록 한다.In the
도 2에 도시한 바와 같이 상기 센서(550)에서 발생된 신호는 마이콤에서 처리되어 무선통신망(20)을 통해 관제센터(30)로 전송된다. 상기 관제센터(30)는 스마트폰 또는 서버 등일 수 있으며, 상기 마이콤으로부터 전송된 신호를 처리하여 두 교량이 정해진 범위내에서 신축하는지 판단한다. 상기 무선통신망(20)은 근거리 또는 원거리 통신망일 수 있으며, 센서모듈(550)과 관제센터(30)에 공통적으로 적용된다.As shown in Figure 2, the signal generated by the
상기 센서(550)는 예를 들어 초음파센서일 수 있으며, 어느 하나의 센서에서 발생된 초음파신호가 상대편 센서에 도달한 시간 등을 토대로 본 발명의 신축이음장치를 통해 연결된 좌우 양 교량의 간격을 판단하고, 판단된 결과에 따라 본 발명이 신축이음장치의 정상적인 기능 수행 여부를 판단한다. 즉 정해진 기준신축범위내에서의 신축이 이루어지고 있는지를 실시간으로 판단하는 것이다. The
본 발명은 또한, 상기 신축이음부(400)에 저발열 특수시멘트 몰탈 50~60 중량%와, 골재 32~42 중량%와, 폴리머 개질제 3~5 중량%와, 물 3~5 중량%를 포함하여 이루어진 폴리머 초속경 콘크리트의 조성물을 혼합하여 제조한 초속경 라텍스 개질 콘크리트를 이동식 혼합기와 이동식 배출 콘베이어를 이용하여 신속하게 보수한다.The present invention also includes 50-60% by weight of low-heat special cement mortar, 32-42% by weight of aggregate, 3-5% by weight of polymer modifier, and 3-5% by weight of water in the
이때, 상기 저발열 초속경 특수시멘트 몰탈은 저발열 특수시멘트 30~40 중량%와 정제된 5호사 60~70중량%로 이루어지며, 상기 저발열 특수시멘트는 분말상태의 무기계 혼화재인 고로수쇄슬래그 미분말 2~40 중량%와, 보통포틀랜드 시멘트 10~30 중량%와, 칼슘설포알루미네이트계 클링커 15~40 중량%와, 칼슘알루미네이트계 클링커 2~10중량%와, 무수석고 10~30 중량%와, 소석회 2~5 중량%와, 첨가제 2~5 중량%로 이루어진다.At this time, the low-heat super-hard diameter special cement mortar is composed of 30 to 40% by weight of low-heat special cement and 60 to 70% by weight of refined No. 5, and the low-heat special cement is pulverized crushed slag fine powder, an inorganic admixture in powder form. 2 to 40% by weight, 10 to 30% by weight of ordinary Portland cement, 15 to 40% by weight of calcium sulfoaluminate-based clinker, 2 to 10% by weight of calcium aluminate-based clinker, and 10 to 30% by weight of anhydrous gypsum , 2-5% by weight of slaked lime, and 2-5% by weight of additives.
이상에서 표를 참조하여 본 발명인 폴리머 초속경 콘크리트 조성물 및 이를 활용한 교량 신축이음 보수공법을 설명함에 있어 각 구성물질을 특정 수치범위 내에서 설명하였으나, 본 발명의 수치범위 내에서 당업자에 의한 단순한 최적 또는 호적의 수치범위를 선택하는 것이 가능하고, 이러한 최적 또는 호적의 수치범위 선택은 발명의 권리범위에 포함되는 것으로 해석되어야 한다.In the above, each constituent material was described within a specific numerical range in describing the polymer superhard concrete composition of the present invention and a bridge expansion joint repair method utilizing the same, but is simply optimized by a person skilled in the art within the numerical range of the present invention. Alternatively, it is possible to select the numerical range of the family register, and the selection of the numerical range of the optimal or family register should be interpreted as being included in the scope of the invention.
즉 콘크리트 조성물의 결합재로 본 발명에 따른 저발열 특수시멘트를 사용하는 경우 종래의 초속경 시멘트를 결합재로 사용하는 경우와 대비하여 압축강도에 있어서 지속적인 강도발현에 유리하고, 또한 압축강도, 부착강도, 염소이온 투과시험 등에서 종래의 초속경 시멘트를 결합재로 사용하는 경우에 비하여 월등한 성능을 갖는 것으로 나타났다.That is, when the low-heat special cement according to the present invention is used as a binder for a concrete composition, it is advantageous for continuous strength development in compressive strength, and also compressive strength, adhesion strength, compared to the case of using a conventional super hard cement as a binder. In the chlorine ion permeation test, it was found that it has superior performance compared to the case of using a conventional super hard cement as a binder.
10 : 교량 20 : 통신망
30 : 관제센터 100 : 표면지지부
200 : 내부지지부 300 : 신축고무
400 : 신축이음부 500 : 연장부
550 : 센서모듈 10: bridge 20: communication network
30: control center 100: surface support
200: internal support 300: new rubber
400: expansion joint 500: extension
550: sensor module
Claims (6)
골재 32~42 중량%;
폴리머 개질제 3~5 중량%; 및
물 3~5 중량%를 포함하여 이루어지고,
상기 저발열 특수시멘트 몰탈은
분말상태의 무기계 혼화재인 고로수쇄슬래그 미분말 2~40 중량%;
보통포틀랜드 시멘트 10~30 중량%;
칼슘설포알루미네이트계 클링커 15~40 중량%;
칼슘알루미네이트계 클링커 2~10중량%;
무수석고 10~30 중량%;
소석회 2~5 중량%; 및
첨가제 2~5 중량%로 이루어진 것을 특징으로 하는 폴리머 초속경 콘크리트 조성물. 50% to 60% of low-heat special cement mortar;
Aggregate 32-42% by weight;
3 to 5% by weight of a polymer modifier; And
It consists of 3 to 5% by weight of water,
The low-heat special cement mortar
2-40% by weight of fine powder of blast furnace crushed slag, which is an inorganic admixture in powder form;
Ordinary Portland cement 10-30% by weight;
15 to 40% by weight of calcium sulfoaluminate-based clinker;
2-10% by weight of calcium aluminate-based clinker;
Anhydrous gypsum 10-30% by weight;
Slaked lime 2-5% by weight; And
Polymer superhard concrete composition characterized by consisting of 2 to 5% by weight of additives.
상기 첨가제는
상기 저발열 특수시멘트 몰탈의 전체 중량 대비
실리카 퓸 1.0~4.0 중량%;
고유동화제 0.5~2.0 중량%;
경화촉진제 0.1~0.5 중량%;
응결지연제 0.1~1.0 중량%; 및
소포제 0.1~0.3 중량%로 이루어진 것을 특징으로 하는 폴리머 초속경 콘크리트 조성물. According to claim 1,
The additive
Compared to the total weight of the low-heat special cement mortar
Silica fume 1.0-4.0 wt%;
High flow agent 0.5 to 2.0 wt%;
Curing accelerator 0.1 to 0.5% by weight;
Coagulation retarder 0.1-1.0 wt%; And
Defoamer 0.1 to 0.3% by weight Polymer superhard concrete composition, characterized in that consisting of.
저발열 초속경 몰탈 50~60 중량%;
골재 32~42 중량%;
폴리머 개질제 3~5 중량%; 및
물 3~5 중량%를 포함하여 이루어진 것을 특징으로 하는 폴리머 초속경 콘크리트 조성물. Claim 3
50-60% by weight of low-heat super rapid mortar;
Aggregate 32-42% by weight;
3 to 5% by weight of a polymer modifier; And
Polymer superhard concrete composition, characterized in that it comprises 3 to 5% by weight of water.
상기 교면지지부와 일체화되도록 위치된 내부지지부와,
상기 교량의 표면수 및 이물질이 신축이음장치를 통하여 교량의 하부로 흐르는 것을 방지하도록 상기 내부지지부 사이에 열융착 또는 접착재로 접착되는 신축고무와,
신축이음장치를 교량 상부구조물에 고정시키기 위해 신축이음장치 양 옆에 형성되는 신축이음부와,
상기 교면지지부의 하측에 일정길이 종으로 연장되도록 설치되는 연장부와,.
상기 연장부에 구성된 센서모듈과,
상기 센서에서 발생된 신호가 무선통신망을 통해 전송되어 오면 이를 처리하여 두 교량이 정해진 범위내에서 신축하는지 판단하는 관제센터로 이루어지는 신축이음장치에서,
상기 신축이음부에는
저발열 초속경 몰탈 50~60 중량%와, 골재 32~42 중량%와, 폴리머 개질제 3~5 중량%와, 물 3~5 중량%를 포함하여 이루어진 폴리머 초속경 콘크리트의 조성물을 혼합하여 제조한 초속경 라텍스 개질 콘크리트를 이동식 혼합기와 이동식 배출 콘베이어를 이용하여 신속하게 타설하고,
상기 저발열 초속경 몰탈은 저발열 특수시멘트 30~40 중량%와 정제된 5호사 60~70중량%로 이루어진 것을 특징으로 하는 교량의 신축 이음부 보수공법.A bridge support portion connecting the two bridges with each other so as to match the bridges of the two bridges,
An internal support positioned to be integrated with the bridge support,
A stretch rubber that is adhered with a heat-sealable or adhesive material between the inner supports to prevent the surface water and foreign matter of the bridge from flowing to the lower part of the bridge through the expansion joint device,
A telescopic joint formed on both sides of the telescopic joint to secure the telescopic joint to the bridge superstructure,
And an extension portion that is installed to extend longitudinally to a certain length under the bridge support.
A sensor module configured in the extension,
When a signal generated by the sensor is transmitted through a wireless communication network, it is processed in a telescopic joint device consisting of a control center that processes and determines whether two bridges expand or contract within a predetermined range.
The expansion joint
Prepared by mixing a composition of 50 to 60% by weight of low heat supersonic mortar, 32 to 42% by weight of aggregate, 3 to 5% by weight of polymer modifier, and 3 to 5% by weight of water. The super-hard latex modified concrete is quickly poured using a mobile mixer and a mobile discharge conveyor,
The low-heat super-hard mortar is a low-heat special cement 30 to 40% by weight and the refined No. 5 60 to 70% by weight of the new joint joint repair method.
분말상태의 무기계 혼화재인 고로수쇄슬래그 미분말 2~40 중량%와, 보통포틀랜드 시멘트 10~30 중량%와, 칼슘설포알루미네이트계 클링커 15~40 중량%와, 칼슘알루미네이트계 클링커 2~10중량%와, 무수석고 10~30 중량%와, 소석회 2~5 중량%와, 첨가제 2~5 중량%로 이루어진 것을 특징으로 하는 교량의 신축 이음부 보수공법.The method according to claim 5, The low-heat special cement of the low-heat super fast diameter mortar
2-40% by weight of fine powder of blast furnace crushed slag, an inorganic admixture in powder form, 10-30% by weight of ordinary Portland cement, 15-40% by weight of calcium sulfoaluminate-based clinker, and 2-10% by weight of calcium aluminate-based clinker Wow, 10-30% by weight of anhydrous gypsum, 2-5% by weight of slaked lime, and 2-5% by weight of additives.
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| KR102372576B1 (en) * | 2021-12-09 | 2022-03-11 | (주)콘텍이엔지 | Polymer admixture modified rapid setting concrete composite and method for reparing and reinforcing concrete structures road pavement using the same |
| KR20230104789A (en) * | 2021-12-31 | 2023-07-11 | 주식회사 제트콘코리아 | Gravel stratum solidification method to prevent ground subsidence of railroad tracks |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102279023B1 (en) | 2020-12-15 | 2021-07-19 | (주)엔텍 | Graphene mortar for concrete maintenance, paint of preventing neutralization and maintenance method of concrete |
| KR102335434B1 (en) * | 2021-03-05 | 2021-12-06 | 주식회사 제트콘코리아 | Eco-friendly ultra rapid harding organic/inorganic elastic coating waterproofing material and waterproofing construction method of elastic coating using the same |
| CN113402208A (en) * | 2021-06-23 | 2021-09-17 | 中德新亚建筑材料有限公司 | High-performance concrete construction technology applied to expansion joint steel box girder side |
| KR102372576B1 (en) * | 2021-12-09 | 2022-03-11 | (주)콘텍이엔지 | Polymer admixture modified rapid setting concrete composite and method for reparing and reinforcing concrete structures road pavement using the same |
| KR20230104789A (en) * | 2021-12-31 | 2023-07-11 | 주식회사 제트콘코리아 | Gravel stratum solidification method to prevent ground subsidence of railroad tracks |
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| KR102242099B1 (en) | 2021-04-21 |
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