KR20230129781A - Lapid cooled steel slag particle heated by induction heating and the mortar or ascon composition comprising the smae and the induction heating curing consruction method thereof - Google Patents
Lapid cooled steel slag particle heated by induction heating and the mortar or ascon composition comprising the smae and the induction heating curing consruction method thereof Download PDFInfo
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- induction heating
- steelmaking slag
- slag particles
- mortar
- heating
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 119
- 239000002893 slag Substances 0.000 title claims abstract description 79
- 230000006698 induction Effects 0.000 title claims abstract description 77
- 239000000203 mixture Substances 0.000 title claims abstract description 68
- 239000002245 particle Substances 0.000 title claims abstract description 59
- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title description 8
- 229910000831 Steel Inorganic materials 0.000 title description 5
- 239000010959 steel Substances 0.000 title description 5
- 238000009628 steelmaking Methods 0.000 claims abstract description 51
- 239000010426 asphalt Substances 0.000 claims abstract description 38
- 238000010276 construction Methods 0.000 claims abstract description 29
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052742 iron Inorganic materials 0.000 claims abstract description 10
- 239000004568 cement Substances 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 238000005507 spraying Methods 0.000 abstract description 6
- 230000020169 heat generation Effects 0.000 abstract description 5
- 239000004567 concrete Substances 0.000 description 15
- 238000001723 curing Methods 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 8
- 238000012360 testing method Methods 0.000 description 7
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- 238000006703 hydration reaction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010791 quenching Methods 0.000 description 4
- 230000000171 quenching effect Effects 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 229910052593 corundum Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000011384 asphalt concrete Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000013007 heat curing Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 239000006148 magnetic separator Substances 0.000 description 1
- 235000011963 major mineral Nutrition 0.000 description 1
- 239000011738 major mineral Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002121 nanofiber Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
Classifications
-
- 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
- C04B5/00—Treatment of metallurgical slag ; Artificial stone from molten metallurgical slag
- C04B5/06—Ingredients, other than water, added to the molten slag or to the granulating medium or before remelting; Treatment with gases or gas generating compounds, e.g. to obtain porous slag
-
- 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
- C04B18/142—Steelmaking slags, converter slags
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/02—Selection of the hardening environment
- C04B40/0263—Hardening promoted by a rise in temperature
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/08—Apparatus for transporting and heating or melting asphalt, bitumen, tar, or the like
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1004—Reconditioning or reprocessing bituminous mixtures, e.g. salvaged paving, fresh patching mixtures grown unserviceable; Recycling salvaged bituminous mixtures; Apparatus for the in-plant recycling thereof
-
- 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
본 발명은 유도가열에 의해 발열되는 급냉 제강슬래그 입자 및 이를 포함하는 모르타르 또는 아스콘 조성물 및 이를 이용한 유도가열경화 시공공법에 관한 것으로, 보다 상세하게는, 낙하되는 용융 슬래그에 고압 가스를 분사하여 용융 슬래그를 미세 액적화하면서 급냉시켜 총 철(T-Fe)의 함량이 20~30중량%인 급냉 제강슬래그 입자로서, 유도가열에 의해 발열되어 우수한 발열효율 및 이로 인한 신속한 가열 양생 및 시공공기를 단축할 수 있는 유도가열에 의해 발열되는 급냉 제강슬래그 입자 및 이를 포함하는 모르타르 또는 아스콘 조성물 및 이를 이용한 유도가열경화 시공공법에 관한 것이다.The present invention relates to rapidly cooled steelmaking slag particles that generate heat by induction heating, a mortar or asphalt composition containing the same, and an induction heating hardening construction method using the same. More specifically, it relates to molten slag by spraying high-pressure gas into falling molten slag. It is a rapidly cooled steelmaking slag particle with a total iron (T-Fe) content of 20 to 30% by weight, which is rapidly cooled while turning into fine droplets. It is generated by induction heating and has excellent heat generation efficiency, resulting in rapid heating curing and shortened construction period. It relates to rapidly cooled steelmaking slag particles that generate heat by induction heating, a mortar or asphalt composition containing the same, and an induction heating hardening construction method using the same.
Description
본 발명은 유도가열에 의해 발열되는 급냉 제강슬래그 입자 및 이를 포함하는 모르타르 또는 아스콘 조성물 및 이를 이용한 유도가열경화 시공공법에 관한 것으로, 보다 상세하게는, 낙하되는 용융 슬래그에 고압 가스를 분사하여 용융 슬래그를 미세 액적화하면서 급냉시켜 총 철(T-Fe)의 함량이 20~30중량%인 급냉 제강슬래그 입자로서, 유도가열에 의해 발열되어 우수한 발열효율 및 이로 인한 신속한 가열 양생 및 시공공기를 단축할 수 있는 유도가열에 의해 발열되는 급냉 제강슬래그 입자 및 이를 포함하는 모르타르 또는 아스콘 조성물 및 이를 이용한 유도가열경화 시공공법에 관한 것이다.The present invention relates to rapidly cooled steelmaking slag particles that generate heat by induction heating, a mortar or asphalt composition containing the same, and an induction heating hardening construction method using the same. More specifically, it relates to molten slag by spraying high-pressure gas into falling molten slag. It is a rapidly cooled steelmaking slag particle with a total iron (T-Fe) content of 20 to 30% by weight, which is rapidly cooled while turning into fine droplets. It is generated by induction heating and has excellent heat generation efficiency, resulting in rapid heating curing and shortened construction period. It relates to rapidly cooled steelmaking slag particles that generate heat by induction heating, a mortar or asphalt composition containing the same, and an induction heating hardening construction method using the same.
일반적으로, 콘크리트 구조물의 안정성 및 고내구성을 확보하기 위해서는 시공단계 초기에 보다 세밀하고 엄격한 시공재료를 필요로 하게 된다. 즉, 콘크리트는 기본적으로 물과 시멘트 재료의 수화반응으로 수화열이 발생하며 수화반응에 의해 굳어지기 때문에 초기 콘크리트의 온도는 매우 중요하다. Generally, in order to ensure the stability and high durability of concrete structures, more detailed and strict construction materials are required at the beginning of the construction stage. In other words, the temperature of the initial concrete is very important because concrete basically generates hydration heat through a hydration reaction between water and cement materials, and hardens through the hydration reaction.
시공초기 기온 하락(일 평균 4℃이하)으로 이에 적절히 대처하지 못하게 되면 콘크리트가 동결되는 초기 동해 피해가 발생할 수 있고 경화 지연으로 강도발현이 어려운 문제점이 발생할 수 있다.Failure to properly respond to the drop in temperature in the early stages of construction (daily average of 4°C or less) may result in initial damage from frost damage when the concrete freezes, and problems with strength development may occur due to delayed hardening.
따라서, 동절기에 콘크리트의 시공에 있어서 콘크리트의 강도발현 원천재료인 시멘트 조성물이 발열하게 된다면 이러한 초기 동해 피해를 최소화할 수 있으며 장기적으로는 콘크리트의 안정성 및 내구성을 확보하는데 크게 기여할 수 있다.Therefore, during construction of concrete in the winter, if the cement composition, which is the source material for developing the strength of concrete, generates heat, this initial damage from frost damage can be minimized and can greatly contribute to securing the stability and durability of concrete in the long term.
최근, 동절기 콘크리트 공사에 사용되는 한중 콘크리트에 대한 연구는 한중 콘크리트 제조기술과 가열 보온양생 방법에 관한 연구로 구분할 수 있다. Recently, research on Korean and Chinese concrete used in winter concrete construction can be divided into research on Korean and Chinese concrete manufacturing technology and heating and curing methods.
한중 콘크리트 제조기술이란 물과 골재를 가열하여 콘크리트의 온도를 높이는 일반적인 방법과 내한 촉진제를 사용하여 동결온도 이하에서 상당량의 수분이 동결하지 않고 경화가 진행되도록 하는 방법이다. Korean-Chinese concrete manufacturing technology is a general method of raising the temperature of concrete by heating water and aggregate, and a method of using a cold-resistant accelerator to allow hardening to proceed without freezing a significant amount of moisture below the freezing temperature.
또한, 가열 보온양생 방법으로는 제트히터, 갈탄 등 열원 공급을 통한 가열보온 양생을 실시하거나, 거푸집 등에 열선을 활용하여 가열하는 단열 양생방법이 있다.In addition, the heat insulation curing method includes heat insulation curing by supplying a heat source such as a jet heater or lignite, or an adiabatic curing method that heats the form using a heat wire.
종래 개발된 가열양생방법으로는 한국등록특허 10-1339294(등록일자 2013년12월03일)에 거푸집; 상기 거푸집의 외면에 배열되는 히팅케이블; 액상 우레탄을 상기 거푸집 외면에 살포하여 상기 히팅케이블이 내장되도록 상기 거푸집의 외면을 덮는 단열부재; 상기 히팅케이블에 전원을 공급하는 컨트롤패널; 상기 컨트롤패널과 히팅케이블을 연결하는 전원케이블; 양측으로 상기 히팅케이블의 열선과 상기 전원케이블의 전원선을 각각 압착하여 연결하는 내측슬리브와, 상기 내측슬리브와 상기 히팅케이블의 절연체 및 상기 전원케이블의 절연체를 감싸 밀폐하는 방수테이프와, 상기 방수테이프와 상기 히팅케이블의 내피복 및 상기 전원케이블의 내피복을 감싸 밀폐하는 내측본드튜브와, 양측으로 상기 히팅케이블의 편조선과 상기 전원케이블의 편조선을 각각 압착하여 연결하는 외측슬리브와, 상기 외측슬리브와 내측본드튜브와 상기 히팅케이블의 외피복 및 상기 전원케이블의 외피복을 감싸 밀폐하는 외측본드튜브를 포함하는 방수연결수단;을 포함하여 이루어지는 한중 콘크리트 양생 시스템이 공지된 바 있다.Conventionally developed heating curing methods include formwork in Korea Patent No. 10-1339294 (registration date: December 3, 2013); Heating cables arranged on the outer surface of the form; An insulating member that covers the outer surface of the form by spraying liquid urethane on the outer surface of the form so that the heating cable is embedded; A control panel that supplies power to the heating cable; A power cable connecting the control panel and the heating cable; An inner sleeve that connects the heating wire of the heating cable and the power wire of the power cable by crimping them on both sides, a waterproof tape that wraps and seals the inner sleeve, the insulator of the heating cable, and the insulator of the power cable, and the waterproof tape. and an inner bond tube that surrounds and seals the inner sheath of the heating cable and the inner sheath of the power cable, an outer sleeve that connects the braided line of the heating cable and the braided line of the power cable by pressing them on both sides, respectively, and the outer sleeve A Korean-Chinese concrete curing system comprising a waterproof connection means including a sleeve, an inner bond tube, and an outer bond tube that surrounds and seals the outer sheath of the heating cable and the outer sheath of the power cable has been known.
또한, 한국등록특허 10-1411261(등록일자 2014년06월18일)에 터널 굴착면과 일정 거리를 유지하며 터널 굴착면 형태로 설치되는 터널 거푸집의 스킨 플레이트와 상기 터널거푸집에 구비된 디귿자 형강 사이에 삽입되어 상기 터널 거푸집의 스킨 플레이트에 부착되며 전원 공급에 의해 마이크로파가 발생하여 발열되는 발열 시스템으로서, 마이크로파를 발생시키는 마이크로파 발생기; 상기 마이크로파 발생기와 일단이 연결되어 있으며 마이크로파 발생기로부터 발생되는 마이크로파를 전달받아 반사부로 전달하는 파이프 형상으로 구비된 도파관; 상기 도파관과 내부 공간을 공유하며 도파관으로부터 전달되는 마이크로파를 난반사시키기 위한 밀폐된 내부 공간을 구비한 반사부; 상기 도파관과 상기 밀폐된 내부 공간을 사이에 두고 반대편에 구비되며 반사부에서 난반사되는 마이크로파를 통과시키기 위한 분배공을 구비한 분배판; 상기 반사부의 반대편에 상기 분배판과 밀착 구비되며 분배공을 통해 통과되는 마이크로파를 흡수하여 열을 발생시키는 발열체; 상기 발열체 외부에 발열체와 밀착 구비되는 바닥판과 상기 바닥판과 수직으로 일체형으로 양측단에 연결되는 측판 및 상기 측판의 상부에 연결되며 상기 측판과 함께 내부에 밀폐된 반사부를 형성하는 캐비티 커버로 구성되며 발열체에서 발생되는 열을 외부로 전달하는 캐비티; 및 상기 발열체의 발열 온도를 제어하는 온도 콘트롤러를 포함하여 구성되며, 상기 발열체는 입자크기 50 mm 이하이고 구형률이 05 이상인 급냉 제강슬래그 및 입자크기 50 mm 이하인 탄화규소 입자를 100:01~100 중량비로 포함하는 세라믹 조성물인 것을 특징으로 하는 마이크로파를 이용한 터널콘크리트 라이닝 시공용 발열 시스템이 개발되어 있다.In addition, in Korea Registered Patent No. 10-1411261 (registration date: June 18, 2014), a skin plate of a tunnel form installed in the form of a tunnel excavation surface is maintained at a certain distance from the tunnel excavation surface and a diagonal steel provided in the tunnel form. A heating system that is inserted into and attached to the skin plate of the tunnel form and generates heat by generating microwaves by power supply, comprising: a microwave generator that generates microwaves; A waveguide having one end connected to the microwave generator and having a pipe shape for receiving microwaves generated from the microwave generator and transmitting them to a reflector; a reflection unit that shares an internal space with the waveguide and has a sealed internal space to diffusely reflect microwaves transmitted from the waveguide; a distribution plate provided on the opposite side of the waveguide and the sealed internal space and having a distribution hole for passing microwaves diffusely reflected from the reflector; a heating element provided in close contact with the distribution plate on the opposite side of the reflection unit and generating heat by absorbing microwaves passing through the distribution hole; It consists of a bottom plate provided on the outside of the heating element in close contact with the heating element, a side plate vertically integrated with the bottom plate and connected to both ends, and a cavity cover connected to the upper part of the side plate and forming a sealed reflection portion inside together with the side plate. a cavity that transfers heat generated from the heating element to the outside; And a temperature controller that controls the heating temperature of the heating element, wherein the heating element is made of quenched steelmaking slag with a particle size of 50 mm or less and a sphericity of 05 or more and silicon carbide particles with a particle size of 50 mm or less in a weight ratio of 100:01 to 100. A heating system for tunnel concrete lining construction using microwaves has been developed, which is characterized in that it is a ceramic composition containing.
그러나, 이러한 방법들은 에너지 사용량 및 열원의 불균일한 공급 등으로 인해 품질저하, 공기지연 및 공사비 증대 등 여러 사회적인 비용 발생을 야기하고 있다. However, these methods cause various social costs such as quality deterioration, construction delay, and increased construction costs due to energy usage and uneven supply of heat sources.
또한, 콘크리트 모르타르 조성물 자체가 발열되도록 한 기술도 공지된 바 있는데, 한국공개특허 10-2013-0001388(공개일자 2013년01월04일)에 용융 슬래그를 낙하시키는 단계; 상기 낙하되는 용융 슬래그에 고압 가스를 분사하여 용융 슬래그를 미세 액적화하는 단계; 상기 얻어진 미세 액적을 급냉시키는 단계; 상기 급냉으로 얻어진 슬래그 분말을 시빙(sieving)하여 10 mm 이하의 입경을 갖는 분말을 입도선별하는 단계; 상기 입도선별된 슬래그 분말을 자력세기 500가우스 이상의 자력 선별기를 이용하여 자력선별하는 단계; 및 상기 자력선별된 슬래그 분말을 구형 선별기를 이용하여 구형률 0.5 이상의 분말만 구형선별하는 단계;를 포함하는 300MHz~300GHz의 마이크로파에 의해 발열되는 개질 제강 슬래그 조성물의 제조방법이 공지되어 있다.In addition, a technology for causing the concrete mortar composition itself to generate heat is also known, including the steps of dropping molten slag in Korean Patent Publication No. 10-2013-0001388 (published on January 4, 2013); spraying high-pressure gas onto the falling molten slag to turn the molten slag into fine droplets; Rapidly cooling the obtained fine droplets; Sieving the slag powder obtained by rapid cooling and selecting the powder having a particle size of 10 mm or less; Magnetically separating the particle size-selected slag powder using a magnetic separator with a magnetic force of 500 gauss or more; and selecting only powders with a sphericity ratio of 0.5 or more from the magnetically sorted slag powder using a spherical sorter. A method for producing a modified steelmaking slag composition that generates heat by microwaves of 300 MHz to 300 GHz is known.
그러나, 상기 마이크로파에 의해 발열되는 개질 제강 슬래그 조성물은 별도의 자력선별을 거치고, 마이크로파에 의한 가열에 의하여 발열되는 것으로 마이크로파 발생장치를 설치하여야 하는 문제점이 있었다.However, the modified steelmaking slag composition that generates heat by microwaves undergoes separate magnetic separation and generates heat by heating by microwaves, so there is a problem that a microwave generator must be installed.
또한, 한국등록특허 10-1561003(등록일자 2015년10월08일)에 C3A(3CaO·Al2O3)을 주요광물로 포함하며, Al2O3를 20 중량% 이상 함유하는 자기발열 슬래그; 시멘트; 및 석고를 포함하고, 상기 자기발열 슬래그는 전체 중량을 기준으로 CaO 45~60 중량%, Al2O3 20~40 중량%, SiO2 2~5 중량%, Fe2O3 1~5중량%, MgO 4~9 중량%, K2O 001~01 중량%, Na2O 001~01 중량%, 및 SO3 05~3 중량%을 포함하는 조성인 것을 특징으로 하는 시멘트 조성물이 공지되어 있다.In addition, Korean Patent No. 10-1561003 (registration date: October 8, 2015) includes C3A (3CaO·Al2O3) as a major mineral and self-heating slag containing more than 20% by weight of Al2O3; cement; and gypsum, wherein the self-heating slag contains 45-60% by weight of CaO, 20-40% by weight of Al2O3, 2-5% by weight of SiO2, 1-5% by weight of Fe2O3, and 4-9% by weight of MgO, based on the total weight. A cement composition is known, characterized in that it contains 001-01% by weight of K2O, 001-01% by weight of Na2O, and 05-3% by weight of SO3.
그러나, 상기 자기발열 슬래그를 사용하는 시멘트 조성물은 단순히 수화반응에 의한 발열에 불과한 것으로 실질적으로 가열 양생효과를 기대할 수 없다However, the cement composition using the self-heating slag simply generates heat through a hydration reaction, so no practical heat curing effect can be expected.
한편, 아스콘 포장도로는 계절적 온도변화에 따라 반복되는 팽창과 수축, 차량에 의해 가해지는 정적 및 동적 하중과 응력의 불 균일, 노화 및 지하 침하 등 상기 여러 가지 요인에 의해 노면의 일부가 부분적으로 갈라지는 균열이 발생하고 있다.On the other hand, asphalt paved roads are subject to partial cracking of the road surface due to various factors such as repeated expansion and contraction due to seasonal temperature changes, uneven static and dynamic loads and stresses applied by vehicles, aging, and underground settlement. Cracks are occurring.
이 외에도 아스콘 포설시 아스콘 포설기계로 포설하고 있어 시공상 포장도로의 노면을 따라 균열이 발생하고 있으며, 이외에도 다짐불량, 접착불량 등으로 균열이 발생하고 있다.In addition, as asphalt concrete is laid using an asphalt laying machine, cracks are occurring along the surface of the paved road during construction. In addition, cracks are occurring due to poor compaction, poor adhesion, etc.
이러한 균열에 빗물 등이 침투하게 되면 균열은 더욱 커지고 이는 결국 도로의 파손으로 이어져 차량 통행에 지장을 초래할 뿐만 아니라 안전사고를 유발할 우려가 높아지고 있다.When rainwater penetrates into these cracks, the cracks become larger and eventually lead to damage to the road, which not only hinders vehicle traffic but also increases the risk of safety accidents.
따라서, 차량의 안전한 소통과 도로의 수명연장을 위해서는 아스콘 포장도로에 균열이 발생할 경우 이를 보수하거나 재포장할 필요가 있다.Therefore, in order to ensure safe traffic of vehicles and extend the lifespan of the road, it is necessary to repair or resurface cracks in the asphalt pavement.
뿐만 아니라, 기존 아스팔트 포장도로와 신재 아스콘 온도 차이에 의한 다짐불량, 접촉불량 및 동절기의 낮은 온도와, 아스콘 공장에서 현장까지 원거리 운송으로 아스콘 온도가 기준 이하로 떨어져 다짐되지 않아 기준밀도 부족 등으로 인해 조인트가 깨지거나 아스팔트 포장에 구멍이 뚫리는 포트홀(pothole) 현상이 발생되었다.In addition, poor compaction, poor contact, and low temperatures in the winter due to the temperature difference between the existing asphalt pavement and new asphalt pavement, and the lack of standard density due to the asphalt temperature falling below the standard and not being compacted due to long distance transportation from the asphalt factory to the site. Pothole phenomenon occurred where joints were broken or holes were created in the asphalt pavement.
이로 인해, 도로의 수명을 단축시킬 뿐만 아니라 교통사고 위험요소를 안고 있어 차를 이용한 도로 주행시 매우 위험하며, 또한 이와 같은 포트홀(pothole)을 보수하기 위해 추가비용을 투여해야 하는 문제점이 발생하였다.As a result, it not only shortens the lifespan of the road, but also poses a risk of traffic accidents, making it very dangerous to drive on the road, and also causes the problem of having to spend additional money to repair such potholes.
종래의 균열보수 또는 포트홀 보수방법으로는 한국등록특허 10-0821238(등록일자 2008년04월03일)에서와 같이, 포설기를 통해 아스콘 보수조성물이 포설된 균열보수 노면을 1차로 다짐하고, 노면 가열기를 통해 가열된 균열보수 노면을 2차로 다짐하는 아스팔트 포장도로 균열보수방법으로서 상기 노면가열기는 고주파 유전가열, 초음파 가열, 마이크로파 가열, 적외선 가열을 사용하는 기술이 공지되어 있으나, 상기 아스콘 포장도로 보수방법에 사용되는 가열은 일반적인 가열방법으로 그 가열 시간이 매우 길어 약 30~1시간 소요되는 문제점이 있다. In the conventional crack repair or pothole repair method, as in Korea Patent No. 10-0821238 (registration date April 3, 2008), the crack repair road surface on which the asphalt repair composition is laid is first compacted through a laying machine, and the road surface is heated. As a crack repair method for asphalt pavement in which the road surface is secondarily compacted through heated crack repair, the road surface heater uses high-frequency dielectric heating, ultrasonic heating, microwave heating, and infrared heating. However, the asphalt pavement repair method is known. The heating used is a general heating method and has the problem that the heating time is very long, taking about 30 to 1 hour.
본 발명은 상기 종래 문제점을 해결하기 위하여, 낙하되는 용융 슬래그에 고압 가스를 분사하여 용융 슬래그를 미세 액적화하면서 급냉시켜 총철(T-Fe)의 함량이 20~30중량%인 급냉 제강슬래그 입자로서, 유도가열에 의해 발열되어 우수한 발열효율 및 이로 인한 신속한 가열 양생 및 시공공기를 단축할 수 있는 유도가열에 의해 발열되는 급냉 제강슬래그 입자 및 이를 포함하는 모르타르 또는 아스콘 조성물 및 이를 이용한 유도가열경화 시공공법을 제공하는 것을 해결하고자 하는 과제로 한다.In order to solve the above-mentioned problems, the present invention sprays high-pressure gas on falling molten slag to rapidly cool the molten slag into fine droplets, thereby producing rapidly cooled steelmaking slag particles with a total iron (T-Fe) content of 20 to 30% by weight. , Rapidly cooled steelmaking slag particles generated by induction heating, which generate heat by induction heating and have excellent heat generation efficiency and thereby can shorten the construction period and quick heating curing, mortar or asphalt composition containing the same, and induction heating and hardening construction method using the same. The problem to be solved is to provide .
본 발명은 상기 과제를 해결하기 위한 것으로, 낙하되는 용융 슬래그에 고압 가스를 분사하여 용융 슬래그를 미세 액적화하면서 급냉시켜 총 철(T-Fe)의 함량이 20~30중량%인 유도가열(induction heating)에 의해 발열되는 급냉 제강슬래그 입자를 과제의 해결수단으로 한다.The present invention is intended to solve the above problems, by injecting high-pressure gas into falling molten slag to rapidly cool the molten slag into fine droplets, thereby heating the molten slag to a total iron (T-Fe) content of 20 to 30% by weight. Rapidly cooled steelmaking slag particles that generate heat by heating are used as a means of solving the problem.
상기 급냉 제강슬래그 입자는 입자 크기가 0.15 ~ 5.0mm인 것을 과제의 해결수단으로 한다.The quenched steelmaking slag particles have a particle size of 0.15 to 5.0 mm as a means of solving the problem.
상기 급냉 제강슬래그 입자는 밀도가 3~4g/cm3이며, 흡수율이 0.7% 이하이고, 조립율(Finess modulus)이 2.3~3.1인 것을 과제의 해결수단으로 한다. The quenched steelmaking slag particles have a density of 3 to 4 g/cm 3 , an absorption rate of 0.7% or less, and a fineness modulus of 2.3 to 3.1 as a means of solving the problem.
상기 유도가열(induction heating)에 의해 발열되는 급냉 제강슬래그 입자와; 시멘트와; 잔골재와; 물을 포함하여 조성되는 모르타르 조성물을 과제의 해결수단으로 한다.Rapidly cooled steelmaking slag particles generated by the induction heating; with cement; Fine aggregate; A mortar composition containing water is used as a means of solving the problem.
상기 모르타르 조성물중의 상기 급냉 제강슬래그 입자는 10~90중량% 함량으로 포함되고, 상기 잔골재는 그 크기가 0.15 ~ 5.0mm인 것을 과제의 해결수단으로 한다.The quenched steelmaking slag particles in the mortar composition are included in an amount of 10 to 90% by weight, and the fine aggregate has a size of 0.15 to 5.0 mm.
상기 유도가열(induction heating)에 의해 발열되는 급냉 제강슬래그 입자를 포함하는 아스콘 조성물을 과제의 해결수단으로 한다.An asphalt composition containing rapidly cooled steelmaking slag particles that generate heat by induction heating is used as a means of solving the problem.
또한, 본 발명은, 상기 유도가열(induction heating)에 의해 발열되는 급냉 제강슬래그 입자를 포함하는 모르타르 조성물을 타설하는 단계와; 상기 타설된 모르타르 조성물을 유도가열(induction heating)장치에 의하여 가열하는 단계;를 포함하는 모르타르 조성물의 유도가열경화 시공공법을 과제의 해결수단으로 한다.In addition, the present invention includes the steps of pouring a mortar composition containing quenched steelmaking slag particles that generate heat by the induction heating; An induction heating-curing construction method of a mortar composition including the step of heating the poured mortar composition by an induction heating device is used as a means of solving the problem.
또한, 본 발명은, 상기 유도가열(induction heating)에 의해 발열되는 급냉 제강슬래그 입자를 포함하는 아스콘 조성물을 포설하는 단계와; 상기 포설된 아스콘 조성물을 유도가열(induction heating)장치에 의하여 가열하는 단계와; 상기 가열된 아스콘 조성물을 다짐하는 단계;를 포함하는 아스콘 조성물의 유도가열경화 시공공법을 과제의 해결수단으로 한다.In addition, the present invention includes the steps of laying an asphalt composition containing quenched steelmaking slag particles that generate heat by the induction heating; Heating the laid asphalt composition by an induction heating device; The induction heating hardening construction method of the asphalt composition, which includes the step of compacting the heated asphalt composition, is used as a means of solving the problem.
본 발명의 유도가열에 의해 발열되는 급냉 제강슬래그 입자 및 이를 포함하는 모르타르 또는 아스콘 조성물 및 이를 이용한 유도가열경화 시공공법은, 낙하되는 용융 슬래그에 고압 가스를 분사하여 용융 슬래그를 미세 액적화하면서 급냉시켜 총 철함량(T-Fe)이 20~30중량%으로 유도가열에 의해 발열되어 우수한 발열효율 및 이로 인한 신속한 가열 양생 및 시공공기를 단축할 수 있는 우수한 효과가 있다.The rapidly cooled steelmaking slag particles generated by induction heating of the present invention, the mortar or asphalt composition containing the same, and the induction heating hardening construction method using the same include spraying high-pressure gas on the falling molten slag and rapidly cooling the molten slag while forming fine droplets. The total iron content (T-Fe) is 20 to 30% by weight, and heat is generated by induction heating, resulting in excellent heat generation efficiency and the excellent effect of rapid heat curing and shortening the construction period.
도 1은 본 발명의 유도가열 급냉 제강슬래그 입자의 유도가열 비교시험
도 2는 본 발명의 유도가열 급냉 제강슬래그 입자의 유도가열 비교시험
도 3은 본 발명의 유도가열 급냉 제강슬래그 입자의 유도가열 비교시험
도 4는 본 발명의 모트타르 조성물과 비교예의 압축강도 비교시험 사진
도 5는 본 발명의 아스콘 포장 및 포트홀을 보수 포장 시공 모식도 및 사진Figure 1 is an induction heating comparative test of induction heating and quenching steelmaking slag particles of the present invention.
Figure 2 is an induction heating comparative test of the induction heating and quenching steelmaking slag particles of the present invention.
Figure 3 is an induction heating comparative test of the induction heating and quenching steelmaking slag particles of the present invention.
Figure 4 is a photograph of a comparative test of compressive strength of the mortar composition of the present invention and the comparative example.
Figure 5 is a schematic diagram and photo of asphalt pavement and pothole repair paving construction according to the present invention.
본 발명은, 낙하되는 용융 슬래그에 고압 가스를 분사하여 용융 슬래그를 미세 액적화하면서 급냉시켜 총 철(T-Fe)의 함량이 20~30중량%인 유도가열(induction heating)에 의해 발열되는 급냉 제강슬래그 입자를 기술구성의 특징으로 한다.In the present invention, high-pressure gas is sprayed on falling molten slag to rapidly cool the molten slag into fine droplets, thereby generating heat by induction heating with a total iron (T-Fe) content of 20 to 30% by weight. Steelmaking slag particles are a feature of the technological composition.
상기 급냉 제강슬래그 입자는 입자 크기가 0.15 ~ 5.0mm인 것을 기술구성의 특징으로 한다.The technical feature of the quenched steelmaking slag particles is that they have a particle size of 0.15 to 5.0 mm.
상기 급냉 제강슬래그 입자는 밀도가 3~4g/cm3이며, 흡수율이 0.7% 이하이고, 조립율(Finess modulus)이 2.3~3.1인 것을 기술구성의 특징으로 한다.The technical features of the quenched steelmaking slag particles are that they have a density of 3 to 4 g/cm 3 , an absorption rate of 0.7% or less, and a fineness modulus of 2.3 to 3.1.
상기 유도가열(induction heating)에 의해 발열되는 급냉 제강슬래그 입자와; 시멘트와; 잔골재와; 물을 포함하여 조성되는 모르타르 조성물을 기술구성의 특징으로 한다.Rapidly cooled steelmaking slag particles generated by the induction heating; with cement; Fine aggregate; The technical composition is characterized by a mortar composition comprising water.
상기 모르타르 조성물중의 상기 급냉 제강슬래그 입자는 10~90중량% 함량으로 포함되고, 상기 잔골재는 그 크기가 0.15 ~ 5.0mm인 것을 기술구성의 특징으로 한다.The technical composition is characterized in that the quenched steelmaking slag particles in the mortar composition are contained in an amount of 10 to 90% by weight, and the fine aggregate has a size of 0.15 to 5.0 mm.
상기 유도가열(induction heating)에 의해 발열되는 급냉 제강슬래그 입자를 포함하는 아스콘 조성물을 기술구성의 특징으로 한다.The technical composition is characterized by an asphalt composition containing quenched steelmaking slag particles that generate heat by the above induction heating.
또한, 본 발명은, 상기 유도가열(induction heating)에 의해 발열되는 급냉 제강슬래그 입자를 포함하는 모르타르 조성물을 타설하는 단계와; 상기 타설된 모르타르 조성물을 유도가열(induction heating)장치에 의하여 가열하는 단계;를 포함하는 모르타르 조성물의 유도가열경화 시공공법을 기술구성의 특징으로 한다.In addition, the present invention includes the steps of pouring a mortar composition containing quenched steelmaking slag particles that generate heat by the induction heating; A construction method for induction heating and hardening of the mortar composition including the step of heating the poured mortar composition by an induction heating device is a technical feature.
또한, 본 발명은, 상기 유도가열(induction heating)에 의해 발열되는 급냉 제강슬래그 입자를 포함하는 아스콘 조성물을 포설하는 단계와; 상기 포설된 아스콘 조성물을 유도가열(induction heating)장치에 의하여 가열하는 단계와; 상기 가열된 아스콘 조성물을 다짐하는 단계;를 포함하는 아스콘 조성물의 유도가열경화 시공공법을 기술구성의 특징으로 한다.In addition, the present invention includes the steps of laying an asphalt composition containing quenched steelmaking slag particles that generate heat by the induction heating; Heating the laid asphalt composition by an induction heating device; The technical configuration is characterized by an induction heating hardening construction method of the asphalt composition including the step of compacting the heated asphalt composition.
이하에서는 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있도록 본 발명의 실시예 및/또는 도면을 통하여 상세히 설명한다. 그러나 본 발명은 여러 가지 상이한 형태로 구현될 수 있으며, 여기에서 설명하는 실시예 및/또는 도면에 한정되지 않는다.Hereinafter, the present invention will be described in detail through examples and/or drawings so that those skilled in the art can easily implement the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments and/or drawings described herein.
먼저, 본 발명의 유도가열(induction heating)에 의해 발열되는 급냉 제강슬래그 입자는 낙하되는 용융 슬래그에 고압 가스를 분사하여 용융 슬래그를 미세 액적화하면서 급냉시켜 총 철(T-Fe)의 함량이 20~30중량%인 것을 사용한다.First, the rapidly cooled steelmaking slag particles generated by the induction heating of the present invention are rapidly cooled while turning the molten slag into fine droplets by spraying high-pressure gas on the falling molten slag, so that the total iron (T-Fe) content is 20. Use ~30% by weight.
여기서, 본 발명의 급냉 제강슬래그 입자를 총 철(T-Fe)의 함량이 20~30중량%인 것으로 특정한 이유는 유도가열(induction heating)에 의한 발열효율을 극대화하기 위한 것이다.Here, the reason why the quenched steelmaking slag particles of the present invention are specified to have a total iron (T-Fe) content of 20 to 30% by weight is to maximize heat generation efficiency by induction heating.
즉, 유도 가열(誘導 加熱, induction heating(IH))이란 전자기 유도를 이용하여 금속물체를 가열시키는 방법이므로 코일에 전류가 공급되면 가열하고자 하는 금속에 와전류(渦電流, eddy currents)가 발생하고, 금속의 저항에 의해 발생된 줄열(Joule heating)이 온도를 높이게 된다. In other words, induction heating (IH) is a method of heating a metal object using electromagnetic induction. When current is supplied to the coil, eddy currents are generated in the metal to be heated. Joule heating generated by the resistance of the metal increases the temperature.
따라서, 유도가열장치의 구조는 한두 개의 전자석의 조합과 같이 감긴 코일로 구성되어 있으며, 이러한 코일로 고주파의 교류전류가 흐르게 된다. 자기이력손실 또한 금속의 온도를 높이는 원인 중 하나이다.Therefore, the structure of the induction heating device consists of a coil wound with a combination of one or two electromagnets, and a high-frequency alternating current flows through this coil. Hysteresis loss is also one of the causes of increasing the temperature of metal.
이때, 종래 기술에서 마이크로파에 의해 발열되는 슬래그는 Fe 성분이 지나치게 많거나 지금이 존재하는 경우에는 스파크 등이 발생할 우려가 있기 때문에 이를 제거해야 하므로 철성분을 스피넬 구조를 형성하여야 하지만, 본 발명에서는 Fe 성분이 많을 수록 유도가열 효율이 좋아지는 특징이 있는 것이다.At this time, in the prior art, the slag heated by microwaves must be removed because there is a risk of sparks, etc., if there is too much Fe component or if metal is present, so the iron component must be formed into a spinel structure. However, in the present invention, the Fe component must be removed because there is a risk of sparks, etc. The more ingredients there are, the better the induction heating efficiency is.
여기서, 상기 급냉 제강슬래그 입자는 입자 크기가 0.15 ~ 5.0mm이고, 밀도가 3~4g/cm3이며, 흡수율이 0.7% 이하이고, 조립율(Finess modulus)이 2.3~3.1인 것이 바람직한데, 이는 유도가열의 효율을 고려한 결과로서, 가장 극대화 효과를 나타내기 때문이다.Here, the quenched steelmaking slag particles preferably have a particle size of 0.15 to 5.0 mm, a density of 3 to 4 g/cm 3 , an absorption rate of 0.7% or less, and a fineness modulus of 2.3 to 3.1, which is derived from This is because it shows the most maximized effect as a result of considering the efficiency of heating.
한편, 상기 유도가열(induction heating)에 의해 발열되는 급냉 제강슬래그 입자와; 시멘트와; 잔골재와; 물을 포함하여 조성되는 모르타르 조성물을 조성하되, 상기 모르타르 조성물중의 상기 급냉 제강슬래그 입자는 10~90중량% 함량으로 포함되고, 상기 잔골재는 그 크기가 0.15 ~ 5.0mm인 것이 바람직하다.Meanwhile, rapidly cooled steelmaking slag particles generated by the induction heating; with cement; Fine aggregate; A mortar composition is composed of water, and the quenched steelmaking slag particles in the mortar composition are preferably contained in an amount of 10 to 90% by weight, and the fine aggregate is preferably 0.15 to 5.0 mm in size.
또한, 상기 유도가열(induction heating)에 의해 발열되는 급냉 제강슬래그 입자를 포함하는 아스콘 조성물을 조성할 수도 있다.In addition, an asphalt concrete composition containing rapidly cooled steelmaking slag particles that generate heat by induction heating may be prepared.
특히, 본 발명은, 상기 유도가열(induction heating)에 의해 발열되는 급냉 제강슬래그 입자를 포함하는 모르타르 조성물을 타설하는 단계와; 상기 타설된 모르타르 조성물을 유도가열(induction heating)장치에 의하여 가열하는 단계;를 포함하는 모르타르 조성물의 유도가열경화 시공공법으로 시공될 수 있을 뿐만 아니라, 상기 유도가열(induction heating)에 의해 발열되는 급냉 제강슬래그 입자를 포함하는 아스톤 조성물을 포설하는 단계와; 상기 포설된 아스톤 조성물을 유도가열(induction heating)장치에 의하여 가열하는 단계와; 상기 가열된 아스콘 조성물을 다짐하는 단계;를 포함하는 아스콘 조성물의 유도가열경화 시공공법으로 시공될 수도 있다.In particular, the present invention includes the steps of pouring a mortar composition containing quenched steelmaking slag particles that generate heat by the induction heating; Not only can it be constructed by an induction heating hardening construction method of the mortar composition including the step of heating the poured mortar composition by an induction heating device, but also rapid cooling by generating heat by the induction heating. Placing an Aston composition containing steelmaking slag particles; Heating the laid Aston composition using an induction heating device; It may also be constructed by an induction heating-curing construction method of the asphalt composition, which includes the step of compacting the heated asphalt composition.
[본 발명의 유도가열 급냉 제강슬래그 입자의 유도가열 비교시험][Induction heating comparative test of induction heating and quenching steelmaking slag particles of the present invention]
다음 [표 1]에 나타난 바와 같이, 본 발명의 유도가열(induction heating)에 의해 발열되는 급냉 제강슬래그 입자를 입자크기별로, 2.0mm under, 2~5mm, 20mm를 준비하고, 비교예로서, Steel fiber, Carbon fiber, carbon nano tube, Graphite Nano fiber를 각각 준비하여 20℃에서부터 70℃ 까지 도달하는 유도가열시간을 측정하고 그 결과를 [표 2] 및 [도 1] 내지 [도 3]에 도시하였다.As shown in the following [Table 1], rapidly cooled steelmaking slag particles that generate heat by induction heating of the present invention were prepared according to particle size, 2.0mm under, 2~5mm, and 20mm, and as a comparative example, Steel Fiber, Carbon Fiber, Carbon Nano Tube, and Graphite Nano Fiber were each prepared and the induction heating time from 20℃ to 70℃ was measured, and the results are shown in [Table 2] and [Figures 1] to [3]. .
[표 2] 및 [도 1] 내지 [도 3]에 나타난 바와 같이, Steel fiber 및 본 발명의 유도가열(induction heating)에 의해 발열되는 급냉 제강슬래그 입자의 유도가열 효율이 월등히 우수한 것을 확인할 수 있다.As shown in [Table 2] and [Figure 1] to [Figure 3], it can be confirmed that the induction heating efficiency of steel fiber and quenched steelmaking slag particles generated by induction heating of the present invention is significantly superior. .
[본 발명의 유도가열경화 모르타르 조성물의 제조 및 압축강도시험][Manufacture and compressive strength test of induction heating and hardening mortar composition of the present invention]
다음 [표 3]과 같이, 본 발명의 유도가열경화 모르타르 조성물과 비교예로서, Steel fiber 각각 1중량%, 2중량%를 사용한 모트타르 조성물을 제조하고 , 압축강도시험(KS F 2405 ; using 2,000kN UTM)을 실시하고 그 결과를 [도 4]에 나타내었다.As shown in the following [Table 3], as a comparative example with the induction heating-curing mortar composition of the present invention, a mortar composition using 1% by weight and 2% by weight of steel fiber, respectively, was prepared, and a compressive strength test (KS F 2405; using 2,000 kN UTM) was performed and the results are shown in [Figure 4].
[도 4]에 나타난 바와 같이, 본 발명의 유도가열경화 모르타르 조성물은 Steel fiber 각각 1중량%, 2중량%를 사용한 모트타르 조성물과 대등한 압축강도를 발현하고 있음을 알 수 있다,As shown in [Figure 4], it can be seen that the induction heating-curing mortar composition of the present invention exhibits compressive strength equivalent to that of the mortar composition using 1% by weight and 2% by weight of steel fiber, respectively.
[본 발명의 유도가열경화 아스콘 조성물의 유도가열경화 시공공법][Induction heating hardening construction method of the induction heating hardening asphalt composition of the present invention]
본 발명의 유도가열경화 아스콘 조성물을 유도가열장치에 의하여 유도가열한 후 다짐하여 아스콘 포장 및 포트홀을 보수 포장하고 그 시공 모식도 및 그 결과를 [도 5]에 나타내었다.The induction hardening asphalt composition of the present invention was induction heated using an induction heating device and then compacted to repair and pave the asphalt pavement and potholes, and the construction schematic diagram and results are shown in [Figure 5].
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 가능할 것이다. 따라서, 본 발명에 개시된 실시예 및/또는 도면들은 본 발명의 기술 사상을 한정하기 위한 것이 아니라 설명하기 위한 것이고, 이러한 실시예 및/또는 도면에 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 an illustrative explanation of the technical idea of the present invention, and various modifications and variations will be possible to those skilled in the art without departing from the essential characteristics of the present invention. Accordingly, the embodiments and/or drawings disclosed in the present invention are not intended to limit the technical idea of the present invention, but are for illustrative purposes, and the scope of the technical idea of the present invention is not limited by these embodiments and/or drawings. . The scope of protection of the present invention should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be construed as being included in the scope of rights of the present invention.
Claims (8)
Rapid cooling, which is characterized in that high-pressure gas is sprayed onto the falling molten slag to rapidly cool the molten slag into fine droplets, generating heat by induction heating with a total iron (T-Fe) content of 20 to 30% by weight. Steelmaking slag particles
상기 급냉 제강슬래그 입자는 입자 크기가 0.15 ~ 5.0mm인 것을 특징으로 하는 급냉 제강슬래그 입자
According to paragraph 1,
The quenched steelmaking slag particles are quenched steelmaking slag particles, characterized in that the particle size is 0.15 to 5.0mm.
상기 급냉 제강슬래그 입자는 밀도가 3~4g/cm3이며, 흡수율이 0.7% 이하이고, 조립율(Finess modulus)이 2.3~3.1인 것을 특징으로 하는 급냉 제강슬래그 입자
According to paragraph 1,
The rapid-cooled steelmaking slag particles have a density of 3-4g/cm 3 , an absorption rate of 0.7% or less, and a fineness modulus of 2.3-3.1.
Rapidly cooled steelmaking slag particles that generate heat by induction heating according to any one of claims 1 to 3; with cement; Fine aggregate; Mortar composition comprising water
상기 모르타르 조성물중의 상기 급냉 제강슬래그 입자는 10~90중량% 함량으로 포함되고, 상기 잔골재는 그 크기가 0.15 ~ 5.0mm인 것을 특징으로 하는 모르타르 조성물
According to clause 4,
A mortar composition characterized in that the quenched steelmaking slag particles in the mortar composition are contained in an amount of 10 to 90% by weight, and the fine aggregate has a size of 0.15 to 5.0 mm.
An asphalt composition comprising rapidly cooled steelmaking slag particles that generate heat by induction heating according to any one of claims 1 to 3.
pouring a mortar composition containing rapidly cooled steelmaking slag particles that generate heat by induction heating according to claim 5; An induction heating curing construction method of a mortar composition comprising the step of heating the poured mortar composition by an induction heating device.
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| KR1020220026822A KR20230129781A (en) | 2022-03-02 | 2022-03-02 | Lapid cooled steel slag particle heated by induction heating and the mortar or ascon composition comprising the smae and the induction heating curing consruction method thereof |
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| KR100821238B1 (en) | 2008-01-04 | 2008-04-11 | 인해엔지니어링(주) | The apparatus and method of repair work on the road |
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| KR100821238B1 (en) | 2008-01-04 | 2008-04-11 | 인해엔지니어링(주) | The apparatus and method of repair work on the road |
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| KR101339294B1 (en) | 2013-07-22 | 2013-12-10 | (주)우신이앤씨 | Cure system of cold weather concrete |
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