KR102106467B1 - Mortar composition comprising waste ston powder for repairing and restoring the surface of concrete structures and the repairing and restoring construction method using ttherof - Google Patents
Mortar composition comprising waste ston powder for repairing and restoring the surface of concrete structures and the repairing and restoring construction method using ttherof Download PDFInfo
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- 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
- C04B18/16—Waste materials; Refuse from building or ceramic industry
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- 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
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- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
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- 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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- 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
- C04B20/0076—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 characterised by the grain distribution
- C04B20/008—Micro- or nanosized fillers, e.g. micronised fillers with particle size smaller than that of the hydraulic binder
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- 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
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- 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
- C04B24/2623—Polyvinylalcohols; Polyvinylacetates
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- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/38—Polysaccharides or derivatives thereof
- C04B24/383—Cellulose or derivatives thereof
- C04B24/386—Cellulose or derivatives thereof containing polyether side chains
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- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/4598—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with waste materials
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/48—Macromolecular compounds
- C04B41/483—Polyacrylates
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5076—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with masses bonded by inorganic cements
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
- C04B41/522—Multiple coatings, for one of the coatings of which at least one alternative is described
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/26—Corrosion of reinforcement resistance
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- 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
Abstract
Description
본 발명은 폐석분 분말을 사용한 친환경 콘크리트 단면 복구 모르타르 조성물 및 이를 이용한 콘크리트 단면 복구 시공 공법에 관한 것으로, 보다 상세하게는, 석고를 포함하지 않는 시멘트 클링커 분말 40~50중량부, 규사 6호사 40~50중량부, 폐석분 분말 10~20중량부, 고로슬래그 분말 10~20중량부, 바텀애시 분말 5~10중량부, 소석회 분말 5~10중량부 및 재유화형 분말수지 5~10중량부, 셀룰로오스에테르계 증점제 5~10중량부를 포함하여 부식 및 중성화에 의하여 열화된 콘크리트 단면을 신속하여 복구하기 위한 폐석분 분말을 사용한 친환경 콘크리트 단면 복구 모르타르 조성물 및 이를 이용한 콘크리트 단면 복구 시공 공법에 관한 것이다.The present invention relates to an eco-friendly concrete cross-section recovery mortar composition using waste-rock powder and a concrete cross-section restoration construction method using the same, more specifically, 40-50 parts by weight of cement clinker powder not containing gypsum, silica sand # 6 50 parts by weight, 10-20 parts by weight of waste stone powder, 10-20 parts by weight of blast furnace slag powder, 5-10 parts by weight of bottom ash powder, 5-10 parts by weight of slaked lime powder and 5-10 parts by weight of re-emulsifying powder resin, cellulose It relates to an eco-friendly concrete section recovery mortar composition using waste stone powder for quickly recovering a concrete section deteriorated by corrosion and neutralization, including 5 to 10 parts by weight of an ether thickener, and a construction method for concrete section recovery using the same.
철근 콘크리트 구조물은 화학적 부식환경, 염해 및 중성화, 수분침투 등에 의해 내부의 철근이 부식하게 되고, 철근의 부식은 철근의 팽창으로 이어져 결국 콘크리트 구조물이 열화되면서 장기적으로 내구성 및 사용성 저하를 초래한다. In the reinforced concrete structure, the internal reinforcing bar is corroded by chemical corrosion environment, salt damage and neutralization, moisture penetration, etc., and the corrosion of the reinforcing bar leads to the expansion of the reinforcing bar, resulting in deterioration of durability and usability in the long term as the concrete structure deteriorates.
이러한 구조물의 열화는 계속 진행되면 결국, 구조물의 붕괴를 초래할 위험성이 있기 때문에 콘크리트 구조물의 내구성 증진을 위해 지속적으로 단면복구나 표면보호와 같은 보수공법들이 사용되고 있다.If the deterioration of the structure continues, there is a risk of eventually causing the collapse of the structure, and thus, repair techniques such as cross-section repair and surface protection are continuously used to improve the durability of the concrete structure.
즉, 콘크리트 구조물 표면의 박리 또는 초기 결함이 있거나 균열의 발생은 열화요인의 이동을 용이하게 하여 열화의 진행을 촉진시키므로 철근 콘크리트 구조물의 안정성 및 성능의 확보를 위해서는 열화 초기에 보수를 실시하여 더 이상의 열화의 진행을 억제하고 내구성능을 회복하고 향상시킬 필요가 있다. In other words, peeling or initial defects on the surface of the concrete structure or the occurrence of cracks facilitate the movement of deterioration factors and accelerate the progress of deterioration. It is necessary to suppress the progress of deterioration and restore and improve durability.
따라서, 콘크리트의 열화, 강재의 부식, 기타의 원인에 의해 구조물 단면의 박리나 탈락 등의 열화인자를 포함하는 콘크리트 부분을 제거한 후, 단면을 그 원래의 성능 및 형태로 복원하기 위해 단면복구재료를 충진하거나 뿜칠 시공을 하여 보수를 실시한다. Therefore, after removing the concrete part containing deterioration factors such as peeling or dropping of the structure section due to the deterioration of concrete, corrosion of steel, and other causes, the section recovery material is used to restore the section to its original performance and shape. Repair it by filling or spraying.
종래의 단면복구 및 표면보수 시공에는 시멘트계 모르타르나, 폴리머 시멘트 모르타르를 사용하고 있는데, 한국등록특허 10-0654152(등록일자 2006년11월29일)에는 시멘트 15~35중량부, 다기능성 슬래그골재6호(입자 0.3~0.6) 17~37 중량부, 다기능성 슬래그골재5호(입자 0.6~0.85) 17~27중량부, 고강도용 혼화제 1~20중량부, 슬래그분말 1~10중량부, 소석회 0.1~5중량부, 유동화제 0.01~0.25중량부, 증점제 0.01~0.5중량부, 보수제 0.01~0.25중량부, 지연제 0.5~5중량부, 촉진제 0.01~0.25중량부를 혼합한 뿜칠용 보수보강재에 수용폴리머를 혼합하여 사용하는 것을 특징으로 하는 다기능성 슬래그골재를 이용한 노출콘크리트 구조물 보수보강재가 공지되어 있다.Cement-based mortar and polymer cement mortar are used for conventional cross-section restoration and surface repair construction. In Korea Registered Patent 10-0654152 (registration date November 29, 2006), 15 to 35 parts by weight of cement, multifunctional slag aggregate 6 No. (particles 0.3 ~ 0.6) 17 ~ 37 parts by weight, multifunctional slag aggregate No. 5 (particles 0.6 ~ 0.85) 17 ~ 27 parts by weight, high strength admixture 1 ~ 20 parts by weight, slag powder 1 ~ 10 parts by weight, slaked lime 0.1 ~ 5 parts by weight, 0.01 ~ 0.25 parts by weight of the fluidizing agent, 0.01 ~ 0.5 parts by weight of the thickener, 0.01 ~ 0.25 parts by weight of the repair agent, 0.5 ~ 5 parts by weight of the retarder, 0.01 ~ 0.25 parts by weight of the accelerator It is known to repair and reinforce the exposed concrete structure using multi-functional slag aggregate, which is characterized by using a mixture.
한국등록특허 10-1084040(등록일자 2011년11월10일)에는 시멘트 40 ~ 85 중량%, 고로 급냉 슬래그 및 고로 서냉 슬래그가 7~9:1~3의 중량비율로 혼합된 것으로서 평균입경이 2~10 μm인 합성 슬래그 미분말 5 ~ 45중량%, 수축 저감재 5% ~ 20중량%, 고분자 수지 0.5 ~ 1.5 중량% 및 섬유 0.2 ~ 2중량%를 포함하는 단면 복구 모르타르용 결합재 조성물이 공지되어 있다. Korean Registered Patent 10-1084040 (Registration Date: November 10, 2011) contains 40 to 85% by weight of cement, blast furnace slag and blast furnace slag at a weight ratio of 7 to 9: 1 to 3, with an average particle size of 2 A binder composition for a single-sided recovery mortar comprising 5 to 45% by weight of synthetic slag fine powder of ~ 10 μm, 5 to 20% by weight of shrinkage reducing material, 0.5 to 1.5% by weight of polymer resin, and 0.2 to 2% by weight of fiber is known. .
한국등록특허 10-1141347(등록일자 2012년04월23일)에는 고로 슬래그 25～80 중량부, 알파형 반수석고 0.3～25 중량부, 폴리비닐알콜 단섬유 0.1～5 중량부, 고분자분말 2～8 중량부, 실리카퓸 5～15 중량부, 플라이애쉬 10～40 중량부, 메타카올린 3～40 중량부, 유동화제 0.1～3중량부, 소포제 0.05～5 중량부를 포함하는 지오폴리머 모르타르; 및 규산소다(물유리) 40～60 중량부 및 실록산 35～60 중량부를 포함하는 모르타르 혼화액;을 포함하고, 상기 고분자분말은 EVA계, NR(Natural Rubber)계, NBR(Natural Rubber-Butadien Rubber), SBR(Styrene- ButadienRubber), 폴리비닐아세테이트계 수지에서 선택되는 어느 하나 이상의 수지 분말을 포함하는 것을 특징으로 하는 환경친화적인 지오폴리머 단면복구용 모르타르 조성물이 공지되어 있다. In Korean Patent Registration No. 10-1141347 (registration date April 23, 2012), 25 to 80 parts by weight of blast furnace slag, 0.3 to 25 parts by weight of alpha-type gypsum plaster, 0.1 to 5 parts by weight of polyvinyl alcohol short fiber, 2 to polymer powder Geopolymer mortar containing 8 parts by weight, 5-15 parts by weight of silica fume, 10-40 parts by weight of fly ash, 3-40 parts by weight of metakaolin, 0.1-3 parts by weight of fluidizing agent, and 0.05-5 parts by weight of antifoaming agent; And a mortar admixture comprising 40-60 parts by weight of sodium silicate (water glass) and 35-60 parts by weight of siloxane. The polymer powder includes EVA, NR (Natural Rubber), and NBR (Natural Rubber-Butadien Rubber). , SBR (Styrene-ButadienRubber), an environmentally friendly geopolymer mortar composition for cross-section repair comprising at least one resin powder selected from polyvinyl acetate-based resins.
한국등록특허 10-1164623(등록일자 2012년07월04일)에는 콘크리트 구조물의 열화방지 및 단면보수용 폴리머 몰탈 조성물을 구성함에 있어서, 시멘트 100중량부, 실리카샌드 80~110중량부, 슬래그 15~40중량부, 가넷 5~12중량부 및 혼화제 0.6~4.0중량부를 포함하여 이루어지는 것을 특징으로 하는 콘크리트 구조물의 열화방지 및 단면보수용 폴리머 몰탈 조성물이 공지되어 있다.In Korean Patent Registration No. 10-1164623 (registration date July 4, 2012), in constructing a polymer mortar composition for preventing and deteriorating a concrete structure, 100 parts by weight of cement, 80 to 110 parts by weight of silica sand, 15 to slag A polymer mortar composition for preventing deterioration and repairing a section of a concrete structure is known, comprising 40 parts by weight, 5 to 12 parts by weight of garnet and 0.6 to 4.0 parts by weight of admixture.
한국등록특허 10-1566965(등록일자 2015년11월02일)에는 포틀랜드 시멘트 10~50 중량부; 제강 슬래그 1~20 중량부; 무수 석고 1~5 중량부; 골재 40~60 중량부; 혼화제 0.3~2 중량부;를 포함하는 것을 특징으로 하는 콘크리트 구조물의 보수용 모르타르 조성물이 공지되어 있다.Korean Registered Patent 10-1566965 (Registration Date November 2, 2015) includes 10-50 parts by weight of Portland cement; Steel slag 1-20 parts by weight; Anhydrous plaster 1-5 parts by weight; Aggregate 40 to 60 parts by weight; A mortar composition for repairing a concrete structure, characterized in that it comprises; 0.3 to 2 parts by weight of admixture is known.
한국등록특허 10-1590951(등록일자 2016년01월27일)에는 보통포틀랜드 시멘트 22.41-23.28 중량%, 건조 규사 55.27-56.93 중량%, 아노르싸이트 분말 3.74-4.21 중량%, 연석고 분말 14.73-16.28 중량%, 재분산성 아크릴 분말 0.31-0.42 중량%, 고성능 감수제 0.56-0.70 중량% 및 폴리비닐알콜섬유 0.82-0.97 중량%를 포함하는 철근 콘크리트 구조물의 단면 복구용 모르타르 조성물이 공지되어 있다.In Korean Patent Registration No. 10-1590951 (registration date January 27, 2016), ordinary Portland cement 22.41-23.28% by weight, dry silica 55.27-56.93% by weight, anodite powder 3.74-4.21% by weight, curb plaster powder 14.73-16.28 A mortar composition for cross-section repair of reinforced concrete structures comprising weight percent, redispersible acrylic powder 0.31-0.42 weight percent, high performance water reducing agent 0.56-0.70 weight percent and polyvinyl alcohol fiber 0.82-0.97 weight percent is known.
한국등록특허 10-1801616(등록일자 2017년11월21일)에는 콘크리트 구조물 단면복구용 시멘트 모르타르 조성물로서, 초기강도 발현 무기 결합재 5∼75중량%, 잔골재 10∼80중량%, 기능개선 혼화제 0.01∼20중량% 및 물 0.1∼30중 량%를 포함하며, 상기 기능개선 혼화제는, 강도 및 부착력을 개선하기 위한 초산비닐-비닐버사테이트 공중합체 50∼99중량%, 접착력 및 내구성을 개선하기 위한 에틸렌-메타크릴에시드 공중합체 0.1∼25중량%, 점도 및 내구성을 개선하기 위한 메타크릴산메틸-부타디엔고무 공중합체 0.1~25중량%, 내산성 및 내알칼리성을 개선하기 위한 염화비닐리덴- 염화비닐 공중합체 0.1∼25중량% 및 강도 및 내구성을 개선하기 위한 지르코알루미네이트 0.1∼25중량%을 포함하고, 응집력 및 재료분리 방지성을 부여하여 안정적인 콘크리트 구조체를 형성하기 위하여 하이드록시에틸셀롤로오스 및 폴리아크릴에시드가 중량비로 0.05∼0.8 : 0.2∼0.95 비율로 혼합된 혼합물 0.01∼10중량%를 더 포함하고, 에틸렌-플루오로에틸렌 공중합체 0.01∼10중량%, 에틸렌-비닐알코올 공중합체 0.01∼10중량%를 더 포함하며, 상기 초기강도 발현 무기 결합재는, 조강 포틀랜드 시멘트 10∼80중량%, 알루미나 시멘트 1∼35중량%, 트리칼슘 알루미네이트 1∼35중량%, 고로슬래그 분말 1∼40중량%, 화산재 5∼30중량%, 무수석고 1∼20중량%, 마그네사이트 0.01~10중량%, 벤토나이트 0.01∼10중량% 및 이탄 또는 토탄(peat) 0.01∼10중량%, 산화티탄 0.01∼10중량%, 피브로퍼라이트(Fibroferrite) 0.01∼10중량%를 포함하고, 상기 잔골재는 실리카질 규사 50∼99중량%, 석회석 0.1∼40중량% 및 견운모 0.1∼40중량%를 포함하며, 상기 조성물로 제조한 모르타르의 압축강도는 536~580 kgf/㎠이고 휨강도는 114~131 kgf/㎠인 것을 특징으로 하는 콘크리트 구조물 보수용 경량 모르타르 보수재 조성물이 공지되어 있다.In Korean Patent Registration No. 10-1801616 (registration date November 21, 2017), a cement mortar composition for cross-section recovery of concrete structures, 5 to 75% by weight of an inorganic binder with initial strength, 10 to 80% by weight of fine aggregate, and a functional improvement admixture 0.01 to 20% by weight and 0.1 to 30% by weight of water, and the functional improvement admixture is 50 to 99% by weight of a vinyl acetate-vinyl versatate copolymer for improving strength and adhesion, ethylene for improving adhesion and durability -Methacrylic acid copolymer 0.1-25% by weight, methyl methacrylate-butadiene rubber copolymer for improving viscosity and durability 0.1-25% by weight, vinylidene chloride-vinyl chloride copolymer for improving acid resistance and alkali resistance 0.1 to 25% by weight and 0.1 to 25% by weight of zircoaluminate for improving strength and durability, and providing cohesion and material separation prevention to form a stable concrete structure In order to further contain hydroxyethylcellulose and polyacrylic acid in a weight ratio of 0.05 to 0.8: 0.2 to 0.95, the mixture further comprises 0.01 to 10% by weight, ethylene-fluoroethylene copolymer 0.01 to 10% by weight, ethylene -Further comprising 0.01 to 10% by weight of a vinyl alcohol copolymer, the initial strength-expressing inorganic binder, 10 to 80% by weight of crude steel Portland cement, 1 to 35% by weight of alumina cement, 1 to 35% by weight of tricalcium aluminate, Blast furnace slag powder 1-40 wt%, volcanic ash 5-30 wt%, anhydrous gypsum 1-20 wt%, magnesite 0.01-10 wt%, bentonite 0.01-10 wt% and peat or peat 0.01-10 wt%, 0.01 to 10% by weight of titanium oxide, 0.01 to 10% by weight of fibroferrite, and the fine aggregate includes 50 to 99% by weight of silica silica, 0.1 to 40% by weight of limestone and 0.1 to 40% by weight of sericite Compressive strength of mortar prepared with the composition 536 ~ 580 kgf / ㎠ and bending strength has a 114 ~ 131 kgf / ㎠ lightweight mortar repair material composition for repairing concrete structures, characterized in that are well known.
그러나, 상기 종래의 선행문헌들은 모두 시멘트계 모르타르나, 폴리머 시멘트 모르타르를 사용하는 것으로, 보통시멘트를 사용하고, 부분적으로는 경화촉진제를 사용하기는 하나, 대부분 속경성을 가지지 못하여 시공 초기 속경성이 없어 초기강도를 발휘하지 못할 뿐 아니라 신속한 복구 시공이 불가능한 문제점이 있었다.However, all of the prior art documents use cement-based mortar or polymer cement mortar, usually using cement, and partially using a curing accelerator. In addition to not exhibiting the initial strength, there was a problem that it is impossible to quickly construct the restoration.
본 발명은 상기 종래의 문제점을 해결하기 위하여, 석고를 포함하지 않는 시멘트 클링커 분말 40~50중량부, 규사 6호사 40~50중량부, 폐석분 분말 10~20중량부, 고로슬래그 분말 10~20중량부, 바텀애시 분말 5~10중량부, 소석회 분말 5~10중량부 및 재유화형 분말수지 5~10중량부, 셀룰로오스에테르계 증점제 5~10중량부를 포함하여 부식 및 중성화에 의하여 열화된 콘크리트 단면을 신속하여 복구하기 위한 폐석분 분말을 사용한 친환경 콘크리트 단면 복구 모르타르 조성물 및 이를 이용한 콘크리트 단면 복구 시공공법을 제공하는 것을 해결하고자 하는 과제로 한다.The present invention, in order to solve the above problems, 40-50 parts by weight of cement clinker powder not containing gypsum, 40-50 parts by weight of silica sand 6, 10-20 parts by weight of waste stone powder, blast furnace slag powder 10-20 Concrete section deteriorated by corrosion and neutralization, including 5-10 parts by weight of bottom ash powder, 5-10 parts by weight of slaked lime powder, 5-10 parts by weight of re-emulsifying powder resin, and 5-10 parts by weight of cellulose ether thickener An object of the present invention is to solve the problem of providing an eco-friendly concrete cross-section recovery mortar composition using waste-rock powder for rapid recovery and a concrete cross-section restoration construction method using the same.
본 발명은 상기 과제를 해결하기 위하여, 석고를 포함하지 않는 시멘트 클링커 분말 40~50중량부, 규사 6호사 40~50중량부, 폐석분 분말 10~20중량부, 고로슬래그 분말 10~20중량부, 바텀애시 분말 5~10중량부, 소석회 분말 5~10중량부 및 재유화형 분말수지 5~10중량부, 셀룰로오스에테르계 증점제 5~10중량부를 포함하여 부식 및 중성화에 의하여 열화된 콘크리트 단면을 신속하여 복구하기 위한 폐석분 분말을 사용한 친환경 콘크리트 단면 복구 모르타르 조성물을 과제의 해결수단으로 한다.In order to solve the above problems, the present invention, 40-50 parts by weight of cement clinker powder not containing gypsum, 40-50 parts by weight of silica sand 6, 10-20 parts by weight of waste stone powder, 10-20 parts by weight of blast furnace slag powder , 5-10 parts by weight of bottom ash powder, 5-10 parts by weight of slaked lime powder, 5-10 parts by weight of re-emulsifiable powder resin, and 5-10 parts by weight of cellulose ether thickener to quickly deteriorate concrete sections deteriorated by corrosion and neutralization The environment-friendly concrete cross-section recovery mortar composition using waste-powder powder for recovery is to be solved.
상기 폐석분 분말은 골재 제조 공정 중에 발생되는 석분 슬러지를 분말화한 것으로 평균입자크기가 6-10um이고, 밀도가 2.6g/cm3인 것을 과제의 해결수단으로 한다.The waste-powder powder is a powdered stone sludge generated during the aggregate production process, and has an average particle size of 6-10 um and a density of 2.6 g / cm 3 as a solution to the problem.
상기 재유화형 분말수지는 밀도 0.9-1.0g/cm3인 것으로, 에틸렌비닐아세테이트(EVA), 폴리비닐아세테이트-비닐카복시레이트(VaVeoVa), 스티렌부타디엔고무(SBR) 중에서 1종 이상 선택되는 것을 과제의 해결수단으로 한다.The re-emulsifying powder resin has a density of 0.9-1.0 g / cm 3 and is selected from one or more of ethylene vinyl acetate (EVA), polyvinyl acetate-vinyl carboxylate (VaVeoVa), and styrene-butadiene rubber (SBR). As a solution.
상기 소석회분말은 수산화칼슘(Ca(OH)2)으로서 이산화탄소(CO2)와 지속적으로 반응하여 탄산칼슘(CaCO3)을 형성하여 콘크리트 공극을 충진하는 효과를 나타내는 것을 과제의 해결수단으로 한다.The slaked lime powder is calcium hydroxide (Ca (OH) 2 ), which continuously reacts with carbon dioxide (CO 2 ) to form calcium carbonate (CaCO 3 ) to show the effect of filling the concrete pores.
또한, 본 발명은 콘크리트 단면 복구대상 부위를 브레이커로 파쇄 및 치핑하 고, 레이턴스 및 이물질을 그라인더, 샌드블라스터, 고압수세척기, 워터젯으로부터 선택되는 방법으로 제거하여 전처리하는 단계와; 상기 전처리된 복구대상부위에 상기 폐석분 분말을 사용한 친환경 콘크리트 단면 복구 모르타르 조성물을 숏크리트방식으로 도포 시공 및 양생하는 단계;를 포함하는 콘크리트 단면 복구 시공 공법을 과제의 해결수단으로 한다.In addition, the present invention comprises the steps of pre-treating by crushing and chipping the concrete restoration target site with a breaker, removing the latency and foreign matter by a method selected from a grinder, sand blaster, high pressure water washer, water jet; The step of applying and curing an eco-friendly concrete cross-section recovery mortar composition using the waste stone powder powder on the pre-treated restoration target site in a shotcrete method;
상기 전처리하는 단계 후에는 상기 폐석분 분말을 사용한 친환경 콘크리트 단면 복구 모르타르 조성물의 콘크리트 단면에 대한 접착강도를 강화하기 위하여 아크릴수지, 에틸렌비닐아세테이트, 메틸메타크릴레이트, 실리콘수지로 이루어진 군에서 선택되는 프라이머를 도포하는 단계를 더 포함하는 것을 과제의 해결수단으로 한다.After the pre-treatment step, a primer selected from the group consisting of acrylic resin, ethylene vinyl acetate, methyl methacrylate, and silicone resin in order to enhance the adhesive strength to the concrete cross-section of the mortar composition of eco-friendly concrete using the waste stone powder. To further include the step of applying as a solution to the problem.
상기 도포 시공 및 양생하는 단계 후에는 중성화 또는 열화를 방지하기 위하여 아크릴수지, 에틸렌비닐아세테이트, 메틸메타크릴레이트, 실리콘수지로 이루어진 군에서 선택되는 표면보호재를 도포하는 단계를 더 포함하는 것을 과제의 해결수단으로 한다.After the step of applying and curing, solving the problem further comprises applying a surface protection material selected from the group consisting of acrylic resin, ethylene vinyl acetate, methyl methacrylate, and silicone resin to prevent neutralization or deterioration. By means.
본 발명의 폐석분 분말을 사용한 친환경 콘크리트 단면 복구 모르타르 조성물 및 이를 이용한 콘크리트 단면 복구 시공 공법은 석고를 포함하지 않는 시멘트 클링커 분말 40~50중량부, 규사 6호사 40~50중량부, 폐석분 분말 10~20중량부, 고로슬래그 분말 10~20중량부, 바텀애시 분말 5~10중량부, 소석회 분말 5~10중량부 및 재유화형 분말수지 5~10중량부, 셀룰로오스에테르계 증점제 5~10중량부를 포함하여 콘크리트와의 부착강도 및 속경성에 의한 초기강도 향상과 방수성을 향상시켜 부식 및 중성화에 의하여 열화된 콘크리트 단면을 신속하게 복구할 수 있는 우수한 효과가 있다.Eco-friendly concrete section recovery mortar composition using waste stone powder of the present invention and concrete section recovery construction method using the same are 40-50 parts by weight of cement clinker powder that does not contain gypsum, 40-50 parts by weight of silica sand 6, 40-50 parts by weight, waste stone powder 10 ~ 20 parts by weight, blast furnace slag powder 10-20 parts by weight, bottom ash powder 5-10 parts by weight, slaked lime powder 5-10 parts by weight and re-emulsifying powder resin 5-10 parts by weight, cellulose ether thickener 5-10 parts by weight Including, it has an excellent effect of quickly recovering the deteriorated concrete section by corrosion and neutralization by improving the initial strength and water resistance by adhesion strength and fast-hardness with concrete.
본 발명은, 석고를 포함하지 않는 시멘트 클링커 분말 40~50중량부, 규사 6호사 40~50중량부, 폐석분 분말 10~20중량부, 고로슬래그 분말 10~20중량부, 바텀애시 분말 5~10중량부, 소석회 분말 5~10중량부 및 재유화형 분말수지 5~10중량부, 셀룰로오스에테르계 증점제 5~10중량부를 포함하여 부식 및 중성화에 의하여 열화된 콘크리트 단면을 신속하여 복구하기 위한 폐석분 분말을 사용한 친환경 콘크리트 단면 복구 모르타르 조성물을 기술구성의 특징으로 한다.The present invention, 40-50 parts by weight of cement clinker powder not containing gypsum, 40-50 parts by weight of silica sand 6, 10-20 parts by weight of waste stone powder, 10-20 parts by weight of blast furnace slag powder, 5 ~ of bottom ash powder 10 parts by weight, 5 to 10 parts by weight of slaked lime powder, 5 to 10 parts by weight of re-emulsifiable powder resin, and 5 to 10 parts by weight of cellulose ether-based thickener, waste-rock powder for rapid recovery of deteriorated concrete sections by corrosion and neutralization Eco-friendly concrete cross-section recovery mortar composition using powder is characterized by its technical composition.
상기 폐석분 분말은 골재 제조 공정 중에 발생되는 석분 슬러지를 분말화한 것으로 평균입자크기가 6-10um이고, 밀도가 2.6g/cm3인 것을 기술구성의 특징으로 한다.The waste-powder powder is a powdered stone sludge generated during the aggregate manufacturing process, and has an average particle size of 6-10um and a density of 2.6g / cm 3 , which is a feature of the technical configuration.
상기 재유화형 분말수지는 밀도 0.9-1.0g/cm3인 것으로, 에틸렌비닐아세테이트(EVA), 폴리비닐아세테이트-비닐카복시레이트(VaVeoVa), 스티렌부타디엔고무(SBR) 중에서 1종 이상 선택되는 것을 기술구성의 특징으로 한다.The re-emulsifiable powder resin has a density of 0.9-1.0 g / cm 3 and is selected from one or more of ethylene vinyl acetate (EVA), polyvinyl acetate-vinyl carboxylate (VaVeoVa), and styrene-butadiene rubber (SBR). It is characterized by.
상기 소석회분말은 수산화칼슘(Ca(OH)2)으로서 이산화탄소(CO2)와 지속적으로 반응하여 탄산칼슘(CaCO3)을 형성하여 콘크리트 공극을 충진하는 효과를 나타내는 것을 기술구성의 특징으로 한다.The slaked lime powder is a calcium hydroxide (Ca (OH) 2 ) that continuously reacts with carbon dioxide (CO 2 ) to form calcium carbonate (CaCO 3 ) and exhibits an effect of filling concrete voids.
또한, 본 발명은 콘크리트 단면 복구대상 부위를 브레이커로 파쇄 및 치핑하 고, 레이턴스 및 이물질을 그라인더, 샌드블라스터, 고압수세척기, 워터젯으로부터 선택되는 방법으로 제거하여 전처리하는 단계와; 상기 전처리된 복구대상부위에 상기 폐석분 분말을 사용한 친환경 콘크리트 단면 복구 모르타르 조성물을 숏크리트방식으로 도포 시공 및 양생하는 단계;를 포함하는 콘크리트 단면 복구 시공 공법을 기술구성의 특징으로 한다.In addition, the present invention comprises the steps of pre-treating by crushing and chipping the concrete restoration target site with a breaker, removing the latency and foreign matter by a method selected from a grinder, sand blaster, high pressure water washer, water jet; A concrete cross-section restoration construction method comprising the steps of applying and constructing an eco-friendly concrete cross-section restoration mortar composition using the waste-rock powder in a shotcrete method on the pre-treated restoration target site is a feature of the technical configuration.
상기 전처리하는 단계 후에는 상기 폐석분 분말을 사용한 친환경 콘크리트 단면 복구 모르타르 조성물의 콘크리트 단면에 대한 접착강도를 강화하기 위하여 아크릴수지, 에틸렌비닐아세테이트, 메틸메타크릴레이트, 실리콘수지로 이루어진 군에서 선택되는 프라이머를 도포하는 단계를 더 포함하는 것을 기술구성의 특징으로 한다.After the pre-treatment step, a primer selected from the group consisting of acrylic resin, ethylene vinyl acetate, methyl methacrylate, and silicone resin in order to enhance the adhesive strength to the concrete cross-section of the mortar composition of eco-friendly concrete using the waste stone powder. Characterized in that the technical configuration further comprises the step of applying a.
상기 도포 시공 및 양생하는 단계 후에는 중성화 또는 열화를 방지하기 위하여 아크릴수지, 에틸렌비닐아세테이트, 메틸메타크릴레이트, 실리콘수지로 이루어진 군에서 선택되는 표면보호재를 도포하는 단계를 더 포함하는 것을 기술구성의 특징으로 한다.After the step of applying and curing, further comprising applying a surface protective material selected from the group consisting of acrylic resin, ethylene vinyl acetate, methyl methacrylate, and silicone resin to prevent neutralization or deterioration. It is characterized by.
이하에서는 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있도록 본 발명의 바람직한 실시예를 통하여 상세히 설명한다. 그러나, 본 발명은 여러 가지 상이한 형태로 구현될 수 있으며, 여기에서 설명하는 실시예에 한정되지 않는다.Hereinafter, the present invention will be described in detail through preferred embodiments of the present invention so that those of ordinary skill in the art can easily implement them. However, the present invention may be implemented in various different forms, and is not limited to the embodiments described herein.
먼저, 본 발명의 폐석분 분말을 사용한 친환경 콘크리트 단면 복구 모르타르 조성물은, 석고를 포함하지 않는 시멘트 클링커 분말 40~50중량부, 규사 6호사 40~50중량부, 폐석분 분말 10~20중량부, 고로슬래그 분말 10~20중량부, 바텀애시 분말 5~10중량부, 소석회 분말 5~10중량부 및 재유화형 분말수지 5~10중량부, 셀룰로오스에테르계 증점제 5~10중량부를 포함하여 조성된다.First, the eco-friendly concrete cross-section recovery mortar composition using the waste stone powder of the present invention, 40-50 parts by weight of cement clinker powder not containing gypsum, 40-50 parts by weight of silica sand 6, 40-20 parts by weight of waste stone powder, It is composed of 10-20 parts by weight of blast furnace slag powder, 5-10 parts by weight of bottom ash powder, 5-10 parts by weight of slaked lime powder, 5-10 parts by weight of re-emulsifying powder resin, and 5-10 parts by weight of cellulose ether thickener.
일반적으로, 시멘트의 제조공정은 다음 4개의 단계로 이루어지는데, 첫단계는 원료를 분쇄·제분하고, 2단계는 원료를 알맞은 비율로 혼합하고, 3단계는 혼합된 재료를 회전가마에서 소성하고, 4단계는 시멘트 클링커로 알려진 소성된 혼합재를 시멘트의 응결시간을 조절하기 위해 넣는 5중량％의 석고와 함께 제분한다.In general, the cement manufacturing process consists of the following four steps, the first step is to crush and mill the raw materials, the second step is to mix the raw materials in an appropriate ratio, the third step is to fire the mixed material in a rotary kiln, Step 4 is milling the fired mixed material known as cement clinker with 5% by weight of gypsum added to control the setting time of cement.
이때, 종래의 기술들은 석고와 함께 혼합, 제분되어 응결시간을 지연시킨 시멘트를 사용하고 있으나, 콘크리트 단면 복구 모르타르 조성물에 사용할 경우에는 초기 응결속도가 늦어 흐름성, 처짐성으로 인해 시공상 어려움 또는 초기강도발현에 어려움이 있었으므로, 본 발명에서는 석고를 포함하지 않는 시멘트 클링커를 속경성 재료로 사용하는 것이 특징이며, 이로 인해 본 발명에서는 초기강도를 확보할 수 있게 된다.At this time, the conventional techniques are used to mix and mill together with gypsum to delay the setting time, but when used in a concrete cross-section recovery mortar composition, the initial setting speed is slow, so it is difficult to construct or early due to flowability and sag. Since it was difficult to express the strength, the present invention is characterized by using a cement clinker that does not contain gypsum as a fast-hardening material, and accordingly, in the present invention, it is possible to secure the initial strength.
본 발명에서는 석고를 포함하지 않는 시멘트 클링커를 40~50중량부 사용하는 것이 바람직하며, 40중량부 미만 사용하게 되면 속경성이 저하되고, 50중량부를 초과하면 속경성이 과다하여 가사시간 및 작업성이 저하될 우려가 있다.In the present invention, it is preferable to use 40 to 50 parts by weight of the cement clinker that does not contain gypsum, and if it is used less than 40 parts by weight, the fast-hardness decreases. There is a fear that this may decrease.
상기 규사6호사는 입자크기가 0.35~0.7mm의 것으로 상기 시멘트 클링커와 동일 사용량인 40~50중량부 사용하는 것이 상기 시멘트 클링커와 결합 치밀도에 있어서 바람직하고 그 사용량을 벗어나면 방수효과 저하되는 단점이 있게 된다.The silica yarn 6 has a particle size of 0.35 to 0.7 mm, and it is preferable to use 40 to 50 parts by weight, which is the same amount as the cement clinker, in terms of the density of bonding with the cement clinker. There is this.
상기 폐석분 분말은 석산 및 석재가공업체에서 원석을 채굴하거나 가공하는 과정에서 석골재의 30~60%정도가 폐석이나 석분 및 슬러지로 손실되고 있고, 이러한 폐기물 중 폐석과 석분의 일부만이 인조 대리석 제조나 경량기포 콘크리트 제조용, 도로포장용 및 객토용으로 재활용되고 있을 뿐, 대부분은 적치되거나 무계획적으로 매립되고 있는 실정이다. In the process of mining or processing the raw stone from the petroleum and stone processing company, about 30-60% of the stone aggregate powder is lost as waste stone, stone powder, and sludge, and only a portion of the waste stone and stone powder is manufactured from artificial marble. B. It is being recycled for the manufacture of lightweight foam concrete, road pavement, and loam, and most of them are deposited or unplanned.
이와 같이 석재 생산과정에서 필연적으로 발생되는 부산물인 폐석분 분말은 두가지 측면에서 환경오염에 영향을 미치고 있는데, 첫째는, 매립으로 인한 오염으로서 산업부산물인 폐석분 분말의 매립에 따른 매립지 확보를 위한 경제적 부담 뿐만 아니라 건조시 발생분진과 이들에 함유된 중금속 이온의 용출에 의한 대기, 토양 및 수질 등의 위해한 환경 공해를 유발시키는 문제점을 동시에 안고 있으며, 지반의 연약화 등 2차 환경오염 문제가 야기된다. As such, waste powder powder, which is a by-product that is inevitably generated during the production process of stone, has an effect on environmental pollution in two aspects. First, it is economical for securing a landfill site due to landfilling of waste powder powder, an industrial by-product, as pollution caused by landfill. In addition to the burden, it also has the problem of causing harmful environmental pollution such as air, soil and water by elution of dust generated during drying and heavy metal ions contained in them, and secondary environmental pollution problems such as softening of the ground do.
둘째는, 야적으로 인한 피해로서, 국내 인공 쇄석사 제조과정에서 발생되는 폐석분 분말은 연간 약100만톤 이상이 발생하고 있으며, 대부분 석산에 야적되어 있는 상황으로 현재 폐기물로 지정되어 있고, 석산야적으로 인해 주변 농지와 상수원 오염과 더불어 침전물에 의한 주민 생수용 수원의 수질을 악화시키고 있으며, 게다가 생산업체의 소유 야적장 부족 및 지역이기주의로 인한 매립장 확보의 어려움으로 인해 공유지 및 농지를 불법으로 점거, 석분 야적장으로 사용하다가 법적인 조치를 받게 되는 사례도 증가하고 있다.Second, as a result of field damage, waste powder powder generated in the process of manufacturing artificial crushed stone in Korea is about 1 million tons or more per year. Due to the pollution of surrounding farmland and water source, the water quality of the water source for inhabitants due to sediment is deteriorating, and the common land and farmland are illegally occupied and stone yards due to lack of yards owned by producers and difficulty in securing landfill sites due to local selfishness. There are also increasing cases where legal action is taken while using the product.
이처럼 산업재료로서 대규모의 재활용 방법이 부족한 현실에서 연간 발생되는 석분의 양에 비해 국토가 좁고 폐기물을 매립할 수 있는 매립장도 포화된 상태여서, 이러한 석분은 그 처리가 매우 심각한 상황에 있으므로, 본 발명에서는 골재 수급의 어려움과 석분 처리문제 해결을 석재가공 산업에서 생긴 부산물인 폐석분 분말을 사용한다.As a result of the lack of a large-scale recycling method as an industrial material, the landfill is narrow compared to the amount of stone generated annually, and the landfill site for landfilling is also saturated. In order to solve the difficulties in supply and demand of aggregates and the problem of processing powder, waste powder from waste, which is a byproduct of the stone processing industry, is used.
이때, 상기 폐석분 분말은 석분 슬러지를 분말화한 것으로 평균입자크기가 6-10um이고, 밀도가 2.6g/cm3인 것을 사용하는 것이 규사 6호사 및 고로슬래그 분말과의 혼화성에서 바람직하다. 이때, 상기 폐석분 분말은 10~20중량부 사용하는 것이 바람직하다.At this time, the waste-powder powder is a powder of sludge powder, having an average particle size of 6-10um and a density of 2.6g / cm 3 is preferable in miscibility with silica sand 6 and blast furnace slag powder. At this time, the waste-rock powder is preferably used in 10 to 20 parts by weight.
한편, 상기 고로슬래그 분말은 잠재 수경성 특성, 장기 강도 발현 및 내구성 증진을 위하여 사용한다. 상기 고로슬래그 분말의 중량비가 증가하면 초기 강도는 저하되나, 장기 강도 발현 및 내구성이 증가한다. 따라서, 상기 고로슬래그 분말은 상기 장기강도 발현을 위하여 10~20중량부 사용하는 것이 바람직한데, 10중량부 미만 사용하면 장기강도가 저하되고, 20중량부 초과 사용하면초기강도가 저하되는 단점이 있다.On the other hand, the blast furnace slag powder is used to improve latent hydraulic properties, long-term strength development and durability. When the weight ratio of the blast furnace slag powder increases, initial strength decreases, but long-term strength development and durability increase. Therefore, the blast furnace slag powder is preferably used 10 to 20 parts by weight to express the long-term strength, if used less than 10 parts by weight, the long-term strength is reduced, if used more than 20 parts by weight there is a disadvantage that the initial strength is reduced. .
상기 바텀애시 분말은 보일러 내에서 일부 용융 상태로 낙하한 다양한 크기(분말크기~직경 1m 정도의 대형 크링커)를 갖는 석탄회로서, 보일러 하부의 수조에서 해수 또는 담수로 냉각한 다음 파쇄하여 회처리장(매립처리장)에 압송처리하는 습식공정 방식에 의해 처리됨으로써 미연탄 함량이 높을 뿐만 아니라 수분과 염분을 포함하고 있어 재활용하기 곤란하였다.The bottom ash powder is coal ash having various sizes (powder size-large clinker having a diameter of about 1 m) that are dropped in a part of a molten state in a boiler, cooled by seawater or fresh water in a water tank at the bottom of the boiler, and then crushed to produce a ash treatment plant (buried It was difficult to recycle because it was processed by wet process method of pressure-feeding to the treatment plant), and it contained high moisture and salt.
이에 본 발명에서는 정제되어 분급된 바텀애시를 사용하되, 입도가 5mm이하의 바텀애시 분말을 사용하는 것이 특징으로서, 상기 바텀애시 분말은 오토클레이브 양생시 실리카 소스로 사용 가능한 SiO2(Quartz)를 포함하고 있고, 2.5mm이하의 입도에서는 도자기와 Al2O3-SiO2 계 내열성 재료의 주요화합물로 사용되는 산화철인 Fe3O4(Hematite)를 포함하고 있으며, 0.3~0.6mm의 입도에서는 Fe3O4 뿐만 아니라 다른 산화철인 Fe2O3와 FeO도 포함하고 있고, 0.3mm이하의 입도에서는 시멘트 수화과정에 중요한 성분인 CaO가 포함되어 무기결합재로 사용될 수 있다.Accordingly, in the present invention, a purified and classified bottom ash is used, but a bottom ash powder having a particle size of 5 mm or less is used, and the bottom ash powder includes SiO 2 (Quartz), which can be used as a silica source when curing an autoclave. and have, in the particle size of 2.5mm or less, and contains iron oxide is Fe 3 O 4 is used as a key compound of the ceramic and Al 2 O 3 -SiO 2 based refractory material (Hematite), particle size of 0.3 ~ 0.6mm in the Fe 3 In addition to O 4 , it contains Fe 2 O 3 and FeO, which are other iron oxides, and CaO, which is an important component in the cement hydration process, can be used as an inorganic binder at a particle size of 0.3 mm or less.
이때, 바텀애시 분말은 5~10중량부 사용하는 것이 규사6호사의 대체제로서 바람직하다. At this time, it is preferable to use 5 to 10 parts by weight of the bottom ash powder as a substitute for silica yarn 6.
상기 소석회는 수산화칼슘을 말하며, 백색의 분말로 물에 약간 녹으며, 그 수용액을 석회수라고 한다. 강한 알칼리성을 띠는데, 이산화탄소와 쉽게 화합하여 물에 녹지 않는 탄산칼슘을 생성한다. 이때, 생성된 탄산칼슘은 콘크리트 공극을 충진하는 효과를 나타내어 방수성능을 향상시키게 되며, 그 사용량은 5~10중량부 사용하는 것이 바람직하다.The slaked lime refers to calcium hydroxide, and is slightly soluble in water as a white powder, and its aqueous solution is called lime water. It has strong alkalinity, and easily combines with carbon dioxide to produce calcium carbonate that is insoluble in water. At this time, the generated calcium carbonate exhibits an effect of filling the concrete voids, thereby improving the waterproof performance, and it is preferable to use 5 to 10 parts by weight.
상기 재유화형 분말수지는 라텍스나 에멀젼을 분무하여 건조시킨 입자 표면에 무기질의 응집방지제(anti-caking powder)를 코팅하여 입자끼리 서로 뭉치지 않고 장기간 보존할 수 있도록 제조한 것으로 물 또는 알칼리용액 중에서 재유화하며, 액상형태의 폴리머 디스퍼젼에 비해 건조 상태의 시멘트 및 골재를 혼합한 형태로 제품을 제조한 후 물만 첨가하여 사용할 수 있는 프리팩키지 형태의 제품제조가 용이하기 때문에 사용이 증가하고 있다.The re-emulsifying powder resin is prepared to coat inorganic particles with anti-caking powder on the surface dried by spraying latex or emulsion, so that the particles can be stored for a long time without clumping together, and re-emulsified in water or an alkali solution. In addition, compared to the liquid polymer dispersion, the use of the product is increasing because it is easy to manufacture a prepackaged product that can be used only by adding water after preparing the product in a mixture of dry cement and aggregate.
이때, 상기 재유화형 분말수지는 밀도 0.9-1.0g/cm3인 것으로, 에틸렌비닐아세테이트(EVA), 폴리비닐아세테이트-비닐카복시레이트(VaVeoVa), 스티렌부타디엔고무(SBR) 중에서 1종 이상 사용할 수 있으며, 본 발명의 모르타르 조성물중에 상기 재유화형 분말수지를 혼입하면 비빔시 재유화하고 그 후에는 폴리머 디스퍼젼과 같은 양상으로 거동하여 폴리머 콘크리트를 형성하므로 방수성능이 향상된다. At this time, the re-emulsifiable powder resin has a density of 0.9-1.0 g / cm 3 , and may be used at least one of ethylene vinyl acetate (EVA), polyvinyl acetate-vinyl carboxylate (VaVeoVa), and styrene-butadiene rubber (SBR). , When the re-emulsifying powder resin is incorporated into the mortar composition of the present invention, it is re-emulsified upon boiling and then behaves in the same manner as the polymer dispersion to form polymer concrete, thereby improving waterproof performance.
이때, 상기 재유화형 분말수지는 5~10중량부 범위로 사용하는 것이 방수성능을 위해 바람직하다.At this time, it is preferable for waterproof performance to use the re-emulsifying powder resin in a range of 5 to 10 parts by weight.
상기 셀룰로오스에테르계 증점제는 높은 증점성과 보수성으로 인해 본 발명의 모르타르 조성물의 처짐 저항성을 강화하고, 작업가능시간을 연장하며, 작업성에 중요한 영향을 미치는 흐름성을 조절할 수 있는 특성을 발휘한다.The cellulose ether-based thickener exhibits properties that enhance the sagging resistance of the mortar composition of the present invention, extend the workable time, and control the flowability, which has an important effect on workability, due to its high viscosity and water retention properties.
즉, 셀룰로오스에테르계 증점제의 이러한 특성들은 본 발명의 모르타르 조성물의 시공시 작업 대상면에 접착력을 강화하는 동시에 처짐 저항성을 강화하고, 수분 증발을 억제하여 모르타르 내의 수분을 원활하게 공급하고 모르타르가 치밀하게 경화되도록 함으로써 보다 높은 강도를 갖게 하는 것으로 사용하며, 그 사용량은 5~10중량부 범위에서 사용하는 것이 바람직하다.That is, these properties of the cellulose ether thickener, while strengthening the adhesion to the work surface during construction of the mortar composition of the present invention, while strengthening sagging resistance, suppressing moisture evaporation to smoothly supply the moisture in the mortar and make the mortar dense. It is used to have a higher strength by allowing it to be cured, and the amount used is preferably 5 to 10 parts by weight.
한편, 본 발명의 폐석분 분말을 사용한 친환경 콘크리트 단면 복구 모르타르 조성물을 사용하여 콘크리트 단면을 복구 시공 공법은, 콘크리트 단면 복구대상 부위를 브레이커로 파쇄 및 치핑하고, 레이턴스 및 이물질을 그라인더, 샌드블라스터, 고압수세척기, 워터젯으로부터 선택되는 방법으로 제거하여 전처리하는 단계와; 상기 전처리된 복구대상부위에 상기 폐석분 분말을 사용한 친환경 콘크리트 단면 복구 모르타르 조성물을 숏크리트방식으로 도포 시공 및 양생하는 단계;를 포함하는 방법으로 시공될 수 있다.On the other hand, the construction method of restoring a concrete section using an eco-friendly concrete section recovery mortar composition using the waste stone powder of the present invention, crushing and chipping the target section of the concrete section recovery with a breaker, lattice and foreign matter grinder, sand blaster, A high pressure water washer and removing the pre-treatment by a method selected from a water jet; It may be constructed by a method comprising; coating and curing the green concrete cross-section recovery mortar composition using the waste-rock powder in the pre-treated recovery site in a shotcrete method.
이때, 선택적으로, 상기 전처리하는 단계 후에는 상기 폐석분 분말을 사용한 친환경 콘크리트 단면 복구 모르타르 조성물의 콘크리트 단면에 대한 접착강도를 강화하기 위하여 아크릴수지, 에틸렌비닐아세테이트, 메틸메타크릴레이트, 실리콘수지로 이루어진 군에서 선택되는 프라이머를 도포하는 단계를 더 포함할 수 있으며, 또한, 선택적으로, 상기 도포 시공 및 양생하는 단계 후에는 중성화 또는 열화를 방지하기 위하여 아크릴수지, 에틸렌비닐아세테이트, 메틸메타크릴레이트, 실리콘수지로 이루어진 군에서 선택되는 표면보호재를 도포하는 단계를 더 포함할 수도 있다.At this time, optionally, after the pre-treatment step, to improve the adhesive strength to the concrete cross-section of the concrete cross-section recovery mortar composition using the waste stone powder consisting of acrylic resin, ethylene vinyl acetate, methyl methacrylate, silicone resin It may further include the step of applying a primer selected from the group, and, optionally, after the step of applying and curing the acrylic resin, ethylene vinyl acetate, methyl methacrylate, silicone to prevent neutralization or deterioration It may further include the step of applying a surface protective material selected from the group consisting of resins.
[본 발명의 폐석분 분말을 사용한 친환경 콘크리트 단면 복구 모르타르 조성물의 제조][Preparation of eco-friendly concrete cross section recovery mortar composition using waste stone powder of the present invention]
석고를 포함하지 않는 시멘트 클링커 분말 50중량부, 규사 6호사 50중량부, 폐석분 분말 20중량부, 고로슬래그 분말 20중량부, 바텀애시 분말 10중량부, 소석회 분말 10중량부 및 재유화형 분말수지 10중량부, 셀룰로오스에테르계 증점제 5중량부 및 적량의 물을 혼합하여 본 발명의 폐석분 분말을 사용한 친환경 콘크리트 단면 복구 모르타르 조성물을 제조하였다. 50 parts by weight of cement clinker powder not containing gypsum, 50 parts by weight of silica sand 6, 20 parts by weight of waste stone powder, 20 parts by weight of blast furnace slag powder, 10 parts by weight of bottom ash powder, 10 parts by weight of slaked lime powder and re-emulsifying powder resin 10 parts by weight, 5 parts by weight of a cellulose ether thickener and an appropriate amount of water were mixed to prepare an eco-friendly concrete cross-section repair mortar composition using the waste-rock powder of the present invention.
[본 발명의 폐석분 분말을 사용한 친환경 콘크리트 단면 복구 모르타르 조성물의 성능 평가][Evaluation of performance of eco-friendly concrete section recovery mortar composition using waste stone powder of the present invention]
상기 [실시예 1]에서 제조된 폐석분 분말을 사용한 친환경 콘크리트 단면 복구 모르타르 조성물을 이용하여 KS F 4042 콘크리트 구조물 보수용 폴리머 시멘트 모르타르 시험방법에 준하여 시험을 실시하였으며, 그 결과를 하기 [표 1]에 나타내었다.The test was conducted according to the test method for polymer cement mortar for repairing concrete structures of KS F 4042 using the eco-friendly concrete cross-section recovery mortar composition using the waste stone powder prepared in [Example 1], and the results are shown in Table 1 below. It is shown in.
상기 [표 1]에 나타난 바와 같이, 본 발명의 폐석분 분말을 사용한 친환경 콘크리트 단면 복구 모르타르 조성물은 모든 시험항목에서 품질기준을 만족하는 값을 나타내고 있음을 알 수 있다. As shown in [Table 1], it can be seen that the eco-friendly concrete section recovery mortar composition using the waste-rock powder of the present invention exhibits a value that satisfies the quality standard in all test items.
이상의 설명은 본 발명의 기술사상을 예시적으로 설명한 것에 불과한 것으로서, 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자라면 본 발명의 본질적인 특성에서 벗어나지 않는 범위에서 다양한 수정 및 변형이 가 능할 것이다. 따라서, 본 발명에 개시된 실시예들은 본 발명의 기술 사상을 한정하기 위한 것이 아니라 설명하기 위한 것이고, 이러한 실시예에 의하여 본 발명의 기술 사상의 범위가 한정되는 것은 아니다. 본 발명의 보호 범위는 아래의 청구범위에 의하여 해석되어야 하며, 그와 동등한 범위 내에 있는 모든 기술 사상은 본 발명의 권리범위에 포함되는 것으로 해석되어야 할 것이다.The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains will be capable of various modifications and variations without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the claims below, and all technical spirits within the equivalent range should be interpreted as being included in the scope of the present invention.
Claims (7)
상기 폐석분 분말은 골재 제조 공정 중에 발생되는 석분 슬러지를 분말화한 것으로 평균입자크기가 6-10um이고, 밀도가 2.6g/cm3인 것을 특징으로 하는 폐석분 분말을 사용한 친환경 콘크리트 단면 복구 모르타르 조성물
40-50 parts by weight of cement clinker powder not containing gypsum, 40-50 parts by weight of silica sand 6, 10-20 parts by weight of waste stone powder, 10-20 parts by weight of blast furnace slag powder, 5-10 parts by weight of bottom ash powder, To quickly recover concrete sections deteriorated by corrosion and neutralization, including 5 to 10 parts by weight of slaked lime powder, 5 to 10 parts by weight of re-emulsifiable powder resin, and 5 to 10 parts by weight of cellulose ether thickener,
The waste-powder powder is an environmentally friendly concrete cross-section recovery mortar composition using waste-powder powder, characterized in that the powder of the sludge generated during the aggregate manufacturing process is powdered and has an average particle size of 6-10um and a density of 2.6g / cm 3 .
상기 재유화형 분말수지는 밀도 0.9-1.0g/cm3인 것으로, 에틸렌비닐아세테이트(EVA), 폴리비닐아세테이트-비닐카복시레이트(VaVeoVa), 스티렌부타디엔고무(SBR) 중에서 1종 이상 선택되는 것을 특징으로 하는 폐석분 분말을 사용한 친환경 콘크리트 단면 복구 모르타르 조성물
According to claim 1,
The re-emulsifiable powder resin has a density of 0.9-1.0 g / cm 3 and is characterized by being selected from one or more of ethylene vinyl acetate (EVA), polyvinyl acetate-vinyl carboxylate (VaVeoVa), and styrene-butadiene rubber (SBR). Eco-friendly concrete section recovery mortar composition using waste stone powder
상기 소석회분말은 수산화칼슘(Ca(OH)2)으로서 이산화탄소(CO2)와 지속적으로 반응하여 탄산칼슘(CaCO3)을 형성하여 콘크리트 공극을 충진하는 효과를 나타내는 것을 특징으로 하는 폐석분 분말을 사용한 친환경 콘크리트 단면 복구 모르타르 조성물
According to claim 1,
The slaked lime powder is eco-friendly using waste-rock powder, characterized in that it reacts with carbon dioxide (CO 2 ) continuously as calcium hydroxide (Ca (OH) 2 ) to form calcium carbonate (CaCO 3 ) to fill the concrete pores. Concrete section repair mortar composition
A step of crushing and chipping a concrete cross-section restoration target site with a breaker, and removing and pre-treating the lattice and foreign matter by a method selected from a grinder, a sand blaster, a high-pressure water washer, and a water jet; It characterized in that it comprises; a step of applying and curing an eco-friendly concrete cross-section recovery mortar composition using the waste stone powder of any one of claims 1, 3 to 4 on the pre-treated recovery target site by shotcrete method; Concrete section repair construction method
상기 전처리하는 단계 후에는 상기 폐석분 분말을 사용한 친환경 콘크리트 단면 복구 모르타르 조성물의 콘크리트 단면에 대한 접착강도를 강화하기 위하여 아크릴수지, 에틸렌비닐아세테이트, 메틸메타크릴레이트, 실리콘수지로 이루어진 군에서 선택되는 프라이머를 도포하는 단계를 더 포함하는 것을 특징으로 하는 콘크리트 단면 복구 시공 공법
The method of claim 5,
After the pre-treatment step, a primer selected from the group consisting of acrylic resin, ethylene vinyl acetate, methyl methacrylate, and silicone resin in order to enhance the adhesive strength to the concrete cross-section of the mortar composition of eco-friendly concrete using the waste stone powder. Concrete cross-section recovery construction method further comprising the step of applying
상기 도포 시공 및 양생하는 단계 후에는 중성화 또는 열화를 방지하기 위하여 아크릴수지, 에틸렌비닐아세테이트, 메틸메타크릴레이트, 실리콘수지로 이루어진 군에서 선택되는 표면보호재를 도포하는 단계를 더 포함하는 것을 특징으로 하는 콘크리트 단면 복구 시공 공법The method of claim 5,
After the step of applying and curing, further comprising applying a surface protection material selected from the group consisting of acrylic resin, ethylene vinyl acetate, methyl methacrylate, and silicone resin to prevent neutralization or deterioration. Concrete section restoration construction method
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