KR20230070670A - Asphalt pavement made of Sol-Gel coated fine aggregate - Google Patents
Asphalt pavement made of Sol-Gel coated fine aggregate Download PDFInfo
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- KR20230070670A KR20230070670A KR1020210156495A KR20210156495A KR20230070670A KR 20230070670 A KR20230070670 A KR 20230070670A KR 1020210156495 A KR1020210156495 A KR 1020210156495A KR 20210156495 A KR20210156495 A KR 20210156495A KR 20230070670 A KR20230070670 A KR 20230070670A
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- fine aggregate
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- 239000010426 asphalt Substances 0.000 title claims abstract description 57
- 239000000203 mixture Substances 0.000 claims abstract description 30
- 239000002344 surface layer Substances 0.000 claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 claims abstract description 18
- 239000012782 phase change material Substances 0.000 claims description 84
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 55
- 239000000499 gel Substances 0.000 claims description 47
- 239000000463 material Substances 0.000 claims description 19
- OCWUCHKZAHTZAB-UHFFFAOYSA-N hexacontane Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC OCWUCHKZAHTZAB-UHFFFAOYSA-N 0.000 claims description 16
- 238000000576 coating method Methods 0.000 claims description 14
- 230000008859 change Effects 0.000 claims description 13
- 239000011248 coating agent Substances 0.000 claims description 13
- 239000004567 concrete Substances 0.000 claims description 12
- 238000003980 solgel method Methods 0.000 claims description 11
- BGHCVCJVXZWKCC-UHFFFAOYSA-N tetradecane Chemical compound CCCCCCCCCCCCCC BGHCVCJVXZWKCC-UHFFFAOYSA-N 0.000 claims description 10
- HOWGUJZVBDQJKV-UHFFFAOYSA-N docosane Chemical compound CCCCCCCCCCCCCCCCCCCCCC HOWGUJZVBDQJKV-UHFFFAOYSA-N 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- SNRUBQQJIBEYMU-UHFFFAOYSA-N dodecane Chemical compound CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 claims description 8
- DCAYPVUWAIABOU-UHFFFAOYSA-N hexadecane Chemical compound CCCCCCCCCCCCCCCC DCAYPVUWAIABOU-UHFFFAOYSA-N 0.000 claims description 8
- CBFCDTFDPHXCNY-UHFFFAOYSA-N icosane Chemical compound CCCCCCCCCCCCCCCCCCCC CBFCDTFDPHXCNY-UHFFFAOYSA-N 0.000 claims description 8
- BKIMMITUMNQMOS-UHFFFAOYSA-N nonane Chemical compound CCCCCCCCC BKIMMITUMNQMOS-UHFFFAOYSA-N 0.000 claims description 8
- YCOZIPAWZNQLMR-UHFFFAOYSA-N pentadecane Chemical compound CCCCCCCCCCCCCCC YCOZIPAWZNQLMR-UHFFFAOYSA-N 0.000 claims description 8
- KUPLEGDPSCCPJI-UHFFFAOYSA-N tetracontane Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC KUPLEGDPSCCPJI-UHFFFAOYSA-N 0.000 claims description 8
- JXTPJDDICSTXJX-UHFFFAOYSA-N triacontane Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC JXTPJDDICSTXJX-UHFFFAOYSA-N 0.000 claims description 8
- RSJKGSCJYJTIGS-UHFFFAOYSA-N undecane Chemical compound CCCCCCCCCCC RSJKGSCJYJTIGS-UHFFFAOYSA-N 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- DIOQZVSQGTUSAI-UHFFFAOYSA-N n-butylhexane Natural products CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 5
- 238000001879 gelation Methods 0.000 claims description 4
- 239000011268 mixed slurry Substances 0.000 claims description 4
- YDLYQMBWCWFRAI-UHFFFAOYSA-N n-Hexatriacontane Natural products CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC YDLYQMBWCWFRAI-UHFFFAOYSA-N 0.000 claims description 4
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 claims description 4
- PFLUOWJPZLHUEA-UHFFFAOYSA-N pentacontane Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC PFLUOWJPZLHUEA-UHFFFAOYSA-N 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 4
- OLTHARGIAFTREU-UHFFFAOYSA-N triacontane Natural products CCCCCCCCCCCCCCCCCCCCC(C)CCCCCCCC OLTHARGIAFTREU-UHFFFAOYSA-N 0.000 claims description 4
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 239000010409 thin film Substances 0.000 claims description 3
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- DIOQZVSQGTUSAI-NJFSPNSNSA-N decane Chemical compound CCCCCCCCC[14CH3] DIOQZVSQGTUSAI-NJFSPNSNSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 15
- 230000020169 heat generation Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 19
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 10
- 238000005338 heat storage Methods 0.000 description 10
- 239000010410 layer Substances 0.000 description 10
- 239000012071 phase Substances 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- 239000011384 asphalt concrete Substances 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 239000011232 storage material Substances 0.000 description 6
- 229920003043 Cellulose fiber Polymers 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 5
- 238000005470 impregnation Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
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- 230000017525 heat dissipation Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- -1 silane compound Chemical class 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 235000013162 Cocos nucifera Nutrition 0.000 description 2
- 244000060011 Cocos nucifera Species 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 239000006087 Silane Coupling Agent Substances 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
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- 239000012153 distilled water Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
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- 239000000126 substance Substances 0.000 description 2
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- 241000196324 Embryophyta Species 0.000 description 1
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- 125000004432 carbon atom Chemical group C* 0.000 description 1
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- 150000001875 compounds Chemical class 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- SHFGJEQAOUMGJM-UHFFFAOYSA-N dialuminum dipotassium disodium dioxosilane iron(3+) oxocalcium oxomagnesium oxygen(2-) Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Na+].[Na+].[Al+3].[Al+3].[K+].[K+].[Fe+3].[Fe+3].O=[Mg].O=[Ca].O=[Si]=O SHFGJEQAOUMGJM-UHFFFAOYSA-N 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010903 husk Substances 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1018—Coating or impregnating with organic materials
- C04B20/1022—Non-macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
- C04B14/022—Carbon
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1051—Organo-metallic compounds; Organo-silicon compounds, e.g. bentone
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/12—Multiple coating or impregnating
- C04B20/123—Multiple coatings, for one of the coatings of which at least one alternative is described
-
- 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
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
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- 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
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/35—Toppings or surface dressings; Methods of mixing, impregnating, or spreading them
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0068—Ingredients with a function or property not provided for elsewhere in C04B2103/00
- C04B2103/0071—Phase-change materials, e.g. latent heat storage materials used in concrete compositions
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Road Paving Structures (AREA)
Abstract
Description
본 발명은 졸-겔 코팅된 PCM 함침 미세골재를 적용한 아스팔트 포장 도로 조성물 및 이의 제조방법에 관한 것으로, 보다 상세하게는 상변화물질(PCM)을 미세골재에 함침시키고 이를 다시 졸-겔 코팅시킨 미세골재를 포함하여 아스팔트 도로의 열용량을 증가시킬 수 있도록 한 졸-겔 코팅된 PCM 함침 미세골재를 적용한 아스팔트 포장 도로 조성물 및 이의 제조방법에 관한 것이다.The present invention relates to an asphalt pavement composition using sol-gel coated PCM-impregnated fine aggregate and a manufacturing method thereof, and more particularly, to a fine aggregate impregnated with a phase change material (PCM) and then sol-gel coated thereon. It relates to an asphalt pavement composition using a sol-gel coated PCM-impregnated fine aggregate capable of increasing the thermal capacity of an asphalt road including aggregate and a manufacturing method thereof.
18세기 산업혁명시대의 증기설비의 등장은 기계공학 분야의 개발에 있어서 에너지를 어떻게 가장 효율적으로 개발하는 것을 주 목적으로 하는 도구였다. 하지만 시간이 흘러 산업분야의 에너지사용은 환경문제를 야기함으로 인해 규제의 필요성을 일깨웠다. 한국의 경우에도 1973년 1차 석유파동 이후 정부의 주도로 1974년에 ‘열관리법’을 제정하고 공포하였다, 한국 열관리 협회를 설립함으로써 산업계 중심으로 열관리 사업을 추진하였다. 또한 교토의정서와 파리협약과 같은 기후 변화 협약에 의해 추진된 세계적인 공조체제가 전 세계 국가들에게 배출목표를 설적하고 환경 규제를 시행하도록 장려 중이다. 이러한 상황에 개발된 PCM(Phase Change Material)이라는 물질은 직역을 했을 때는 상변화 물질을 뜻하며 특정한 온도에서 온도의 변화 없이 고체에서 액체, 액체에서 기체로, 혹은 반대인 기체에서 액체, 액체에서 고체로 상이 변화하며 많은 열을 흡수, 또는 방출을 하는 잠열재로써 열 조절 기능을 하는 물질을 의미한다. 본 발명에서는 이러한 PCM을 다음 문단에 소개할 문제에 도입하여 에너지문제를 해결하고 자연재해를 방지할 목적의 PCM을 아스팔트 도로에 적용할 것이다.The emergence of steam facilities in the era of industrial revolution in the 18th century was a tool for the main purpose of how to develop energy most efficiently in the development of mechanical engineering. However, over time, the use of energy in the industrial sector has awakened the need for regulation due to environmental problems. In the case of Korea, after the first oil crisis in 1973, the government enacted and promulgated the 'Heat Management Act' in 1974, and the Korea Thermal Management Association was established to promote thermal management projects centered on the industry. In addition, global collaborations driven by climate change agreements such as the Kyoto Protocol and the Paris Agreement are encouraging countries around the world to set emission targets and enforce environmental regulations. A material called PCM (Phase Change Material) developed in this situation means a phase change material when translated directly, and can change from solid to liquid, from liquid to gas, or vice versa, from gas to liquid or from liquid to solid without a change in temperature at a specific temperature. It is a latent heat material that absorbs or releases a lot of heat while changing its phase, and means a material that functions as a heat control. In the present invention, PCM will be applied to asphalt roads for the purpose of solving energy problems and preventing natural disasters by introducing such PCM into the problems introduced in the next paragraph.
최근 4년간 도로 결빙으로 인한 사고로 145명이 사망했고 8500명이 부상을 입는 등 블랙아이스와 관련된 문제가 대두되고 있다. 블랙아이스는 기온이 갑작스럽게 내려갈 경우 도로 위에 녹았던 눈이 얇은 빙판으로 얼어붙는 현상으로 워낙 얇고 투명하여 도로 주행 시 눈에 잘 띄지 않는다. 주로 겨울철에 자주 발견되며 눈과 비가 내리지 않더라도 기온의 차이가 큰 곳에서는 생기기 쉽다. 이러한 블랙아이스 현상을 최대한 지연시킬 수 있는 아스팔트 포장 도로 조성물의 개발이 시급한 실정이다.In the past four years, 145 people have died and 8,500 people have been injured in accidents caused by icy roads, and problems related to black ice are emerging. Black ice is a phenomenon in which melted snow on the road freezes into a thin sheet of ice when the temperature suddenly drops. It is often found in winter and is likely to occur in places with large temperature differences even if there is no snow or rain. There is an urgent need to develop an asphalt pavement composition capable of delaying the black ice phenomenon as much as possible.
한국공개특허 2016-0067609에서는 파라핀계 상변화물질(PCM)이 제올라이트(Zeolite), 퍼라이트(Perlite) 또는 흑연(graphite)로 구성되는 군에서 선택되는 하나 이상의 다공성 입자의 세공경(pore)에 충진하는 단계; 상기 파라핀계 상변화물질(PCM)이 충진된 다공성 입자의 외부 표면이 실리카 고화재, 시멘트, 규사, 석고 또는 황토로 구성되는 군에서 선택되는 하나 이상의 코팅재로 코팅하여 내열성 축열재를 제조하는 단계; 상기 내열성 축열재를 원통형상의 외부 하우징을 가지는 파이프의 내부에 충진하여 내열성 축열재가 충진된 축열재 파이프를 제조단계; 상기 내열성 축열재가 충진된 축열재 파이프를 아스팔트, 시멘트 또는 황토로 이루어진 인도, 주차장 또는 등산로의 하부에 매설하는 단계;를 포함하는 것을 특징으로 하는 도로의 결빙 방지 방법을 제시하였다. In Korean Patent Publication 2016-0067609, a paraffinic phase change material (PCM) is filled in the pores of one or more porous particles selected from the group consisting of zeolite, perlite, or graphite. step; Preparing a heat-resistant heat storage material by coating the outer surface of the porous particles filled with the paraffinic phase change material (PCM) with one or more coating materials selected from the group consisting of silica solidification material, cement, silica sand, gypsum, or loess; manufacturing a heat storage material pipe filled with the heat-resistant heat storage material by filling the inside of a pipe having a cylindrical outer housing with the heat-resistant heat storage material; A method for preventing icing of roads comprising the step of burying the heat storage material pipe filled with the heat-resistant heat storage material under a sidewalk, parking lot, or hiking trail made of asphalt, cement, or loess has been proposed.
또한, 한국등록특허 10-2300808에서는 수성 상전이물질(110a) 또는 유성 상전이물질(110b)로서, 주변 온도에 따라 온도가 높아지는 온열 과정에서 열을 흡수하고(축열), 주변 온도보다 온도가 낮아지는 냉열 과정에서 열을 방출하는(방열) 특성을 갖는 상전이물질(110); 상기 상전이물질(110)을 흡수하는 물질 흡수제로서, 상기 상전이물질(110)이 함침되어 흡수되는 셀룰로스 섬유(120); 상기 상전이물질(110)과 균일한 접촉을 위하여 혼합되는 계면활성제(130); 및 표면코팅 및 결합재(Binder)로서, 슬러리(Slurry) 형태의 페이스트(Paste)를 형성하도록 혼합되는 페이스트 형성 혼합재(140)를 포함하되, 상기 상전이물질(110)이 함침된 셀룰로스 섬유(120), 계면활성제(130) 및 페이스트 형성 혼합재(140)를 혼합한 슬러리 형태의 페이스트(Paste)를 형성하며; 그리고 상기 셀룰로스 섬유(120)는 축열방열 소재 형성시 상기 상전이물질(110)의 소실이나 화학적 변형을 최소화하며, 상기 셀룰로스 섬유(120)는 닥나무 한지셀룰로스 또는 벼도정 후 발생되는 왕겨를 포함하여 상전이물질과 화학적으로 결합하지 않으면서 상전이물질을 대량으로 흡수할 수 있는 천연셀룰로스 물질로 선택되는 것을 특징으로 하는 상전이물질이 함침된 셀룰로스 섬유를 이용한 축열방열 소재를 제시하였다. In addition, in Korean Patent Registration 10-2300808, as an aqueous phase change material (110a) or an oil-based phase change material (110b), it absorbs heat in a heating process in which the temperature increases according to the ambient temperature (heat storage), and cools the temperature lower than the ambient temperature. A phase change material 110 having heat dissipation (heat dissipation) characteristics in the process; As a material absorbent for absorbing the phase change material 110, the phase change material 110 is impregnated and absorbed cellulose fiber 120; Surfactant 130 mixed for uniform contact with the phase change material 110; And as a surface coating and binder, including a paste forming mixture 140 mixed to form a slurry-type paste, the phase change material 110 impregnated cellulose fibers 120, Forming a slurry-type paste in which the surfactant 130 and the paste forming mixture 140 are mixed; In addition, the cellulose fiber 120 minimizes the loss or chemical transformation of the phase change material 110 when forming a heat storage and dissipation material, and the cellulose fiber 120 is a phase change material including mulberry paper cellulose or rice husk generated after rice milling A heat storage and heat dissipation material using cellulose fibers impregnated with a phase change material, characterized in that it is selected as a natural cellulose material capable of absorbing a large amount of a phase change material without being chemically bonded with it.
본 발명에서는 상변화물질의 열 저장으로 인해 에너지를 절감할 수 있으며 아스팔트 도로의 열용량을 증가시킬 수 있는 졸-겔 공법을 활용한 PCM 함침 미세골재 적용 아스팔트 포장 도로 조성물을 제공하는 데 그 목적이 있다.The purpose of the present invention is to provide an asphalt pavement composition using PCM-impregnated fine aggregate using a sol-gel method that can save energy due to heat storage of phase change materials and increase the thermal capacity of asphalt roads. .
또한, 본 발명은 상기 졸-겔 공법을 활용한 PCM 함침 미세골재 적용 아스팔트 포장 도로 조성물의 제조방법을 제공하는 데도 그 목적이 있다.In addition, an object of the present invention is to provide a method for manufacturing an asphalt pavement composition using PCM-impregnated fine aggregate using the sol-gel method.
본 발명에 따른 아스팔트 포장 도로 조성물은 잔골재의 일부를 졸-겔 코팅된 PCM 함침 미세골재로 치환시켜 포함하는 것을 그 특징으로 한다. The asphalt pavement composition according to the present invention is characterized by substituting a part of fine aggregate with sol-gel coated PCM-impregnated fine aggregate.
본 발명의 일 실시예에 따르면, 상기 졸-겔 코팅된 PCM 함침 미세골재는 상변화물질(PCM)이 미세골재에 함침되고, 이를 졸-겔 용액으로 코팅시켜 이루어진 것이 바람직하다. According to one embodiment of the present invention, the sol-gel coated PCM-impregnated fine aggregate is preferably formed by impregnating the fine aggregate with a phase change material (PCM) and coating it with a sol-gel solution.
상기 상변화물질(PCM)은 옥탄(Octane, C8H18), 노난(Nonane, C9H20), 데칸(Decane, C10H22), 테트라데칸, 운데칸(Undecane, C11H24), 도데칸(Dodecane, C12H26), 펜타데칸(Pentadecane, C15H32), 헥사데칸(Hexadecane, C16H34), 이코산(Icosane, C20H42), 도코산(Docosane, C22H46), 트리아콘탄(Triacontane, C30H62), 테트라콘탄(Tetracontane, C40H82), 펜타콘탄(Pentacontane, C50H102) 및 헥사콘탄(Hexacontane, C60H122)으로 이루어진 그룹으로부터 선택되는 1종 이상의 파라핀 알칸 계열의 물질이 바람직하다. The phase change material (PCM) is octane (C 8 H 18 ), nonane (C 9 H 20 ), decane (C 10 H 22 ), tetradecane, undecane (C 11 H 24 ), Dodecane (C 12 H 26 ), Pentadecane (C 15 H 32 ), Hexadecane (C 16 H 34 ), Icosane (C 20 H 42 ), Docosane , C 22 H 46 ), triacontane (C 30 H 62 ), tetracontane (C 40 H 82 ), pentacontane (C 50 H 102 ) and hexacontane (Hexacontane, C 60 H 122 ), at least one paraffinic alkane-based material selected from the group consisting of is preferred.
상기 상변화물질(PCM)은 0 ~ 100℃ 사이의 상변이온도를 가지는 것일 수 있다. The phase change material (PCM) may have a phase change temperature between 0 and 100 °C.
본 발명의 일 실시예에 따르면, 상기 미세골재는 1mm 이하의 크기를 가지는 입상의 활성탄이 바람직하다. According to one embodiment of the present invention, the fine aggregate is preferably granular activated carbon having a size of 1 mm or less.
본 발명의 일 실시예에 따르면, 상기 졸-겔 코팅시킨 PCM 함침 미세골재는 전체 잔골재 중 60~80중량%로 포함되는 것일 수 있다. According to one embodiment of the present invention, the sol-gel coated PCM-impregnated fine aggregate may be included in 60 to 80% by weight of the total fine aggregate.
상기 졸-겔 코팅시킨 PCM 함침 미세골재는 PCM이 함침된 미세골재를 졸 상태의 액체를 겔 상태의 고체로 변이하여 만들어진 실리카겔 박막을 이용하여 이루어진 것일 수 있다. The sol-gel-coated PCM-impregnated fine aggregate may be made by using a silica gel thin film made by transforming the PCM-impregnated fine aggregate from a liquid in a sol state to a solid in a gel state.
본 발명은 또한, 상기 아스팔트 포장 도로 조성물을 아스팔트 포장 도로의 표층으로 포함하는 아스팔트 포장 도로 콘크리트를 제공할 수 있다.The present invention may also provide an asphalt paved road concrete comprising the asphalt paved road composition as a surface layer of an asphalt paved road.
이러한 본 발명에 따른 아스팔트 도로 포장 콘크리트의 제조방법은 상변화물질(PCM)을 미세골재인 입상의 활성탄에 함침시켜 PCM 함침 미세골재 제조하는 단계, 상기 PCM 함침 미세골재를 졸-겔 공법을 이용하여 코팅시켜 졸-겔 코팅된 PCM 함침 미세골재 제조하는 단계, 아스팔트 도로 포장 콘크리트 조성과 상기 졸-겔 코팅된 PCM 함침 미세골재를 배합시켜 배합 슬러리를 제조하는 단계, 상기 배합 슬러리에 보강철근을 사용하여 강도를 보강시키고 몰드에 세팅한 후 배합 슬러리를 타설하는 단계, 및 상기 배합 슬러리를 경화 및 양생시키는 단계를 포함하여 이루어질 수 있다. The method for manufacturing asphalt road pavement concrete according to the present invention includes the steps of impregnating phase change material (PCM) into granular activated carbon, which is a fine aggregate, to produce PCM-impregnated fine aggregate, and using the PCM-impregnated fine aggregate by a sol-gel method. Coating to prepare a sol-gel coated PCM-impregnated fine aggregate, mixing the asphalt road pavement concrete composition and the sol-gel coated PCM-impregnated fine aggregate to prepare a mixed slurry, using reinforcing bars in the mixed slurry After reinforcing the strength and setting in a mold, pouring the blended slurry, and curing and curing the blended slurry.
본 발명의 일 실시예에 따르면, 상기 PCM 함침 미세골재 제조시, PCM 100부피비에 대하여 미세골재는 60~90부피비로 포함되는 것이 바람직하다. According to one embodiment of the present invention, when producing the PCM-impregnated fine aggregate, it is preferable that the fine aggregate is included in a volume ratio of 60 to 90 with respect to the PCM 100 volume ratio.
또한 본 발명의 일 실시예에 따르면, 상기 졸-겔 코팅시, 졸 용액의 pH는 3~4이고, 겔화시 상기 용액의 pH는 7~8로 유지시키는 것이 바람직하다.In addition, according to one embodiment of the present invention, during the sol-gel coating, the pH of the sol solution is 3 to 4, and during gelation, the pH of the solution is preferably maintained at 7 to 8.
본 발명에 따르면, 미세 골재에 PCM을 진공함침을 진행한 후 고체화시킨 다음, 이를 졸-겔 코팅시켜 PCM을 골재 속에 가둠으로써 하나의 다른 골재를 생성하고, 이 골재를 아스팔트 도로 포장 중 아스팔트 표층에 사용함으로써 PCM의 발열성능을 활용하여 블랙아이스 현상을 지연시키는 효과를 가진다. According to the present invention, PCM is vacuum impregnated with fine aggregate, solidified, and then sol-gel coated to trap the PCM in the aggregate to create another aggregate, and this aggregate is applied to the asphalt surface layer during asphalt road pavement. By using it, it has the effect of delaying the black ice phenomenon by utilizing the heat generation performance of the PCM.
도 1은 PCM을 미세 골재에 함침 시키는 과정이다.
도 2는 본 발명에 따른 Sol-Gel 코팅 과정을 나타낸 것이다.
도 3은 본 발명에 따른 Sol-Gel 코팅을 한 미세골재를 도식한 것이다.
도 4는 PCM의 상변화 온도그래프이다.
도 5는 아스팔트 콘크리트 포장의 개략적인 도면이다.
도 6은 본 발명의 일 실시예에 따른 PCM 함침 활성탄 미세골재를 제조과정을 나타낸 것이고,
도 7은 PCM 함침 전 미세골재와 졸-겔 코팅된 PCM 함침된 후 미세골재의 주사전자현미경으로 표면 구조를 관찰한 사진이다. 1 is a process of impregnating PCM into fine aggregate.
2 shows a Sol-Gel coating process according to the present invention.
Figure 3 is a schematic diagram of fine aggregate coated with Sol-Gel according to the present invention.
4 is a phase change temperature graph of PCM.
5 is a schematic diagram of an asphalt concrete pavement.
Figure 6 shows the manufacturing process of the PCM-impregnated activated carbon fine aggregate according to an embodiment of the present invention,
FIG. 7 is a photograph of the surface structures observed with a scanning electron microscope of the fine aggregate before PCM impregnation and the fine aggregate after sol-gel coated PCM impregnation.
이하에서 본 발명을 더욱 상세하게 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail.
본 명세서에서 사용된 용어는 특정 실시예를 설명하기 위하여 사용되며, 본 발명을 제한하기 위한 것이 아니다.Terms used in this specification are used to describe specific embodiments and are not intended to limit the present invention.
본 명세서에서 사용된 바와 같이, 단수 형태는 문맥상 다른 경우를 분명히 지적하는 것이 아니라면, 복수의 형태를 포함할 수 있다. 또한, 본 명세서에서 사용되는 경우 "포함한다(comprise)" 및/또는 "포함하는 (comprising)"은 언급한 형상들, 숫자, 단계, 동작, 부재, 요소 및/또는 이들 그룹의 존재를 특정하는 것이며, 하나 이상의 다른 형상, 숫자, 동작, 부재, 요소 및/또는 그룹들의 존재 또는 부가를 배제하는 것이 아니다.As used herein, the singular form may include the plural form unless the context clearly indicates otherwise. Also, when used herein, "comprise" and/or "comprising" specifies the presence of the recited shapes, numbers, steps, operations, elements, elements, and/or groups thereof. and does not exclude the presence or addition of one or more other shapes, numbers, operations, elements, elements and/or groups.
본 발명은 졸-겔 공법을 활용한 PCM 함침 미세골재를 기층, 중간층, 표층으로 구성된 아스팔트 콘크리트의 표층으로 포함하는 아스팔트 포장 도로 조성물과 이의 제조방법에 관한 것이다. The present invention relates to an asphalt pavement composition comprising PCM-impregnated fine aggregate using a sol-gel method as a surface layer of asphalt concrete composed of a base layer, an intermediate layer, and a surface layer, and a manufacturing method thereof.
특히 본 발명에서는 미세 골재에 PCM을 진공함침을 진행한 후 고체화시킨 다음, 이를 졸-겔 코팅시켜 PCM을 골재 속에 가둠으로써 하나의 다른 골재를 생성하고, 이 골재를 아스팔트 도로 포장 중 아스팔트 표층에 사용함으로써 PCM의 발열성능을 활용하여 블랙아이스 현상을 지연시키는 데 특징이 있다.In particular, in the present invention, PCM is vacuum impregnated with fine aggregate, solidified, and then sol-gel coated to trap the PCM in the aggregate to create another aggregate. This aggregate is used for the asphalt surface layer during asphalt road pavement. By doing so, it is characterized by delaying the black ice phenomenon by utilizing the heat generation performance of the PCM.
아스팔트 포장 도로 시공은 기층재를 까는 것을 시작으로 경계석을 위치시키고, 굴착기를 이용한 측구 타설, 기층제 다짐, 피니셔 장비를 이용한 아스콘 기층 타설, 다짐을 한 후에 중간층, 혹은 표층을 타설하고 다짐하는 방식으로 마무리된다. Asphalt pavement construction starts with laying the base material, places the boundary stone, pours the gutter using an excavator, compacts the base layer, lays the asphalt base layer using finisher equipment, and after compaction, pours and compacts the middle layer or surface layer. It is finished.
이때 아스콘 기층은 무게를 견디기 위해 굵은 골재를 사용하고 표층은 주행성을 위해 미세골재(잔골재)를 혼합하여 사용하게 된다. 아스팔트 혼합물에서는 2.5mm체를 통과하고 0.08mm체에 남는 골재를 잔골재라고 칭한다.At this time, coarse aggregate is used for the asphalt base layer to withstand the weight, and fine aggregate (fine aggregate) is used for the surface layer in order to drive. In asphalt mixtures, aggregate that passes through a 2.5 mm sieve and remains on a 0.08 mm sieve is called fine aggregate.
본 발명에서는 아스팔트 표층 콘크리트 조성물에 포함되는 골재 중 상기 잔골재의 일부를 졸-겔 공법을 활용한 PCM 함침 미세골재로 치환시켜, PCM의 발열성능을 활용하여 아스팔트 도로에서의 블랙아이스 등의 문제를 해결하고자 하였다.In the present invention, some of the fine aggregate among the aggregates included in the asphalt surface layer concrete composition is substituted with PCM-impregnated fine aggregate using a sol-gel method to solve problems such as black ice on asphalt roads by utilizing the heating performance of PCM. wanted to
이러한 본 발명에 따른 졸-겔 공법을 활용한 PCM 함침 미세골재는 PCM을 미세골재인 입상의 활성탄에 함침시켜 PCM 함침 미세골재 제조 공정, 상기 PCM 함침 미세골재를 졸-겔 공법을 이용하여 코팅시켜 졸-겔 코팅된 PCM 함침 미세골재 제조 공정으로 이루어진다. The PCM-impregnated fine aggregate using the sol-gel method according to the present invention is a process for manufacturing PCM-impregnated fine aggregate by impregnating PCM into granular activated carbon, which is a fine aggregate, and coating the PCM-impregnated fine aggregate using the sol-gel method It consists of a sol-gel coated PCM impregnated fine aggregate manufacturing process.
상기 PCM을 미세골재인 입상의 활성탄에 함침시키는 공정은 다음 도 1에 나타낸 바와 같이 야자나무 활성탄과 같은 다공성 미세 골재를 진공 함침기에 넣고 PCM을 주입 후 압력을 가한다. 진공과 압력으로 인해 활성탄의 기공에 PCM이 가득하게 차게 되고 이를 꺼내어 와이어 매시와 같은 넓은 체에 소산시킨 다음, 이를 상기 상변화물질의 상변화온도보다 낮은 저온에서 방치하여 상기 PCM 함침 활성탄 미세골재를 고체화시키는 과정으로 진행될 수 있다. In the process of impregnating the PCM into granular activated carbon, which is a fine aggregate, as shown in FIG. 1, porous fine aggregate such as coconut activated carbon is put into a vacuum impregnator, PCM is injected, and then pressure is applied. Due to vacuum and pressure, the pores of the activated carbon are filled with PCM, which is taken out and dispersed through a wide sieve such as a wire mesh, and then left at a low temperature lower than the phase change temperature of the phase change material to obtain the PCM-impregnated activated carbon fine aggregate. It can proceed through the process of solidification.
상기 상변화물질(PCM)은 옥탄(Octane, C8H18), 노난(Nonane, C9H20), 데칸(Decane, C10H22), 테트라데칸, 운데칸(Undecane, C11H24), 도데칸(Dodecane, C12H26), 펜타데칸(Pentadecane, C15H32), 헥사데칸(Hexadecane, C16H34), 이코산(Icosane, C20H42), 도코산(Docosane, C22H46), 트리아콘탄(Triacontane, C30H62), 테트라콘탄(Tetracontane, C40H82), 펜타콘탄(Pentacontane, C50H102) 및 헥사콘탄(Hexacontane, C60H122)으로 이루어진 그룹으로부터 선택되는 1종 이상의 파라핀 알칸 계열의 물질이 바람직하다.The phase change material (PCM) is octane (C 8 H 18 ), nonane (C 9 H 20 ), decane (C 10 H 22 ), tetradecane, undecane (C 11 H 24 ), Dodecane (C 12 H 26 ), Pentadecane (C 15 H 32 ), Hexadecane (C 16 H 34 ), Icosane (C 20 H 42 ), Docosane , C 22 H 46 ), triacontane (C 30 H 62 ), tetracontane (C 40 H 82 ), pentacontane (C 50 H 102 ) and hexacontane (Hexacontane, C 60 H 122 ), at least one paraffinic alkane-based material selected from the group consisting of is preferred.
상기 상변화물질(PCM)은 0 ~ 100℃ 사이의 상변이온도를 가지는 것일 수 있다. The phase change material (PCM) may have a phase change temperature between 0 and 100 °C.
상기 PCM을 미세골재인 입상의 활성탄에 함침시키는 공정에서는 상기 상변화물질 100부피비에 대하여 미세골재 활성탄을 60~90부피비로 혼합해서 약 1~5시간 동안 함침시키는 것이 바람직하다. In the step of impregnating the PCM into granular activated carbon, which is a fine aggregate, it is preferable to mix the fine aggregate activated carbon at a volume ratio of 60 to 90 with respect to 100 volume ratio of the phase change material and impregnate for about 1 to 5 hours.
또한 본 발명에서는 상기 PCM을 함침시키기 위한 미세골재로서 1mm 이하, 바람직하기로는 2.5mm체를 통과하고 0.08mm체에 남는 골재 크기를 가지는 입상의 활성탄을 사용할 수 있다.In addition, in the present invention, granular activated carbon having an aggregate size of 1 mm or less, preferably passing through a 2.5 mm sieve and remaining on a 0.08 mm sieve, may be used as the fine aggregate for impregnating the PCM.
상기 공정으로 제조된 PCM 함침 활성탄 미세골재는 다음 도 2에서와 같이, 졸-겔 용액을 이용하여 졸-겔 코팅시킨 PCM 함침 활성탄 미세골재를 제조하는 공정을 거친다. As shown in FIG. 2, the PCM-impregnated activated carbon micro-aggregate prepared by the above process goes through a process of manufacturing PCM-impregnated activated carbon micro-aggregate coated with a sol-gel solution using a sol-gel solution.
구체적으로는, 에틸 실리게이트(TEOS)와 에탄올(Etoh)를 이용하여 만들어 둔 졸 형태의 용액에 넣어준 뒤 겔 형태가 될 때까지 저어준 후 말려서 나온 뭉쳐진 코팅 미세골재를 갈아주면 졸-겔 공법을 활용한 PCM 함침 활성탄 미세골재가 완성된다. 즉, 본 발명에 따른 졸-겔 코팅은 졸 상태의 액체를 겔 상태의 고체로 변이하여 만들어진 실리카겔 박막을 이용하여 PCM 함침 활성탄 미세골재를 코팅하는 방법이다. Specifically, after putting it in a sol-type solution made using ethyl silicate (TEOS) and ethanol (Etoh), stirring it until it becomes a gel form, and then grinding the agglomerated coating fine aggregates that come out of the drying process, the sol-gel method The PCM-impregnated activated carbon fine aggregate using the is completed. That is, the sol-gel coating according to the present invention is a method of coating PCM-impregnated activated carbon micro-aggregate using a silica gel thin film made by transforming a liquid in a sol state into a solid in a gel state.
이때 사용되는 졸-겔 용액은 유기 실란계(silane) 화합물과 금속 알콕사이드(alkoxide) 화합물을 포함하는 통상의 것으로 상기 졸-겔 용액이 특별히 한정되는 것은 아니다.The sol-gel solution used at this time is a conventional one containing an organic silane compound and a metal alkoxide compound, and the sol-gel solution is not particularly limited.
구체적으로는 TEOS(에틸 실리게이트)와 EtOH를 몰비 1:4의 비율로 60℃ 정도의 항온교반기에서 10분정도 섞어준 후 증류수를 TEOS와 8:1로, TEOS 중량 대비 10%의 실란 커플링제를 섞어 80℃ 정도의 항온교반기에서 20분 정도 섞어준다. Specifically, TEOS (ethyl silicate) and EtOH were mixed at a molar ratio of 1:4 in a constant temperature stirrer at about 60 ° C for about 10 minutes, and then distilled water was mixed with TEOS at a ratio of 8: 1, 10% by weight of TEOS Silane coupling agent and mix in a constant temperature stirrer at about 80 ° C for about 20 minutes.
이때 가수분해 속도와 혼화성 향상을 위해 HCl을 첨가하여 PH를 3~4 정도 맞추고 5분정도 저어준다. 또한, 겔화 시간을 단축하기 위해 NH4OH를 PH 7~8 정도 되도록 넣어준 후, 상기에서 제조된 PCM 함침 활성탄 미세골재를 위 용액에 넣어준 뒤 겔 형태가 될 때까지 저어주고 80℃ 상태의 항온기에서 건조시키는 것이 바람직하다.At this time, to improve the hydrolysis rate and miscibility, add HCl to adjust the PH to 3-4 and stir for 5 minutes. In addition, in order to shorten the gelation time, NH 4 OH was added to a pH of about 7 to 8, and then the PCM-impregnated activated carbon fine aggregate prepared above was added to the above solution, stirred until it became a gel, and Drying in a thermostat is preferred.
상기 제조된 졸-겔 코팅된 PCM 함침 미세골재는 다음 도 3에 나타낸 바와 같은 구조를 가진다. The prepared sol-gel coated PCM-impregnated fine aggregate has a structure as shown in FIG. 3 below.
본 발명과 같이 졸-겔 코팅된 PCM 함침 미세골재는 다음 도 4에서와 같이, 상변화, 대부분 물에서 얼음으로 변할 때의 잠열의 성능이 매우 뛰어나다. 물로 예시를 들게 된다면 0℃ 에서 물이 열을 방출하게 되고 물은 그로 인해 온도가 더욱 떨어져서 얼음으로 상변화를 하게 된다. PCM의 장점은 이 상변화 온도를 임의적으로 설정을 할 수 있다는 것이다. 예를 들어, 상기 상변화 온도를 5.9℃ 로 설정하게 되면 그때부터 PCM은 열을 방출하게 되고 서서히 주변의 온도가 올라가게 된다. 방출되는 온도가 피크가 되는 지점은 1~2℃ 사이이고 방출되는 온도에너지가 없어지는 지점은 약 영하 2℃ 이다. 이 온도는 물이 아스팔트도로 표층에서 블랙아이스가 되는 현상을 공략하기 위한 설정이다. As shown in FIG. 4, the sol-gel coated PCM-impregnated fine aggregate as in the present invention has excellent latent heat performance when phase change, most of which changes from water to ice. If we take water as an example, water releases heat at 0 ° C, and the temperature of the water drops further and changes to ice. The advantage of PCM is that the phase change temperature can be arbitrarily set. For example, when the phase change temperature is set to 5.9° C., the PCM releases heat from then on, and the ambient temperature gradually rises. The point at which the emitted temperature peaks is between 1 and 2 ° C, and the point at which the emitted temperature energy disappears is about minus 2 ° C. This temperature is set to target the phenomenon where water becomes black ice on the surface of the asphalt road.
본 발명은 블랙아이스라는 기온이 갑작스럽게 내려갈 경우 도로 위에 녹았던 눈이 얇은 빙판으로 얼어붙는 현상을 지연하고 그로 인한 사고에 대한 확률을 줄이기 위함으로 물이 얼어붙는 온도인 0℃ 근처는 물론 0 ~ 100℃ 사이의 상변이온도를 가지는 파라핀 계열의 알칸 화합물을 사용하는 것이 인프라 시설물과 건축물 등에 가장 적절히 사용될 수 있어 바람직하다. 이러한 파라핀계 상변화물질의 종류로는 옥탄(Octane, C8H18), 노난(Nonane, C9H20), 데칸(Decane, C10H22), 테트라데칸, 운데칸(Undecane, C11H24), 도데칸(Dodecane, C12H26), 펜타데칸(Pentadecane, C15H32), 헥사데칸(Hexadecane, C16H34), 이코산(Icosane, C20H42), 도코산(Docosane, C22H46), 트리아콘탄(Triacontane, C30H62), 테트라콘탄(Tetracontane, C40H82), 펜타콘탄(Pentacontane, C50H102) 및 헥사콘탄(Hexacontane, C60H122) 등을 예시할 수 있으나, 특별히 이를 한정하는 것은 아니다. 탄소 수가 올라갈수록 융점온도가 높은 상변화물질이다.The present invention is to delay the phenomenon of freezing of the snow melted on the road into a thin ice sheet when the temperature of black ice suddenly drops and to reduce the probability of an accident caused by it. It is preferable to use a paraffin-based alkane compound having a phase transition temperature between 100 ° C. because it can be most appropriately used for infrastructure facilities and buildings. Types of these paraffinic phase change materials include octane (C 8 H 18 ), nonane (C 9 H 20 ), decane (C 10 H 22 ), tetradecane, undecane (C 11 H 24 ), Dodecane (C 12 H 26 ), Pentadecane (C 15 H 32 ), Hexadecane (C 16 H 34 ), Icosane (C 20 H 42 ), Docosan (Docosane, C 22 H 46 ), triacontane (C 30 H 62 ), tetracontane (C 40 H 82 ), pentacontane (C 50 H 102 ) and hexacontane (Hexacontane, C 60 H 122 ) and the like, but are not particularly limited thereto. The higher the number of carbon atoms, the higher the melting point.
다음 도 5는 아스팔트 콘크리트 포장의 개략적인 도면으로서, 아스팔트 콘크리트는 기층, 중간층, 표층으로 구성되며 표층이 가장 밖에 위치함으로써 도로에서 자동차의 타이어와 마찰되는 부분이다. 5 is a schematic diagram of an asphalt concrete pavement, wherein the asphalt concrete is composed of a base layer, an intermediate layer, and a surface layer, and the surface layer is located at the outermost part, which is the part that rubs against the tire of a car on the road.
이에 본 발명에서는 아스팔트 콘크리트를 구성하는 기층, 중간층, 표층 중에서 상기 표층에 본 발명에 따른 졸-겔 코팅된 PCM 함침 미세골재를 포함할 수 있다. Therefore, in the present invention, the sol-gel coated PCM-impregnated fine aggregate according to the present invention may be included in the surface layer among the base layer, intermediate layer, and surface layer constituting asphalt concrete.
상기 표층의 아스팔트 도로 포장 콘크리트 조성물은 굵은 골재 50~85중량%, 잔골재 10~35중량%, 채움재 0.01~5중량%, 및 아스팔트 바인더 1~10중량%를 포함할 수 있다. The asphalt road pavement concrete composition of the surface layer may include 50 to 85% by weight of coarse aggregate, 10 to 35% by weight of fine aggregate, 0.01 to 5% by weight of a filler, and 1 to 10% by weight of an asphalt binder.
본 발명에 사용되는 상기 굵은 골재는 5mm 이상의 골재를 말하며 사용되는 아스팔트 바인더에 따라 아스팔트 도로 포장 조성물 중 50~85중량%의 범위 내에서 적절히 혼합하여 사용될 수 있다. The coarse aggregate used in the present invention refers to an aggregate of 5 mm or more, and may be appropriately mixed and used within the range of 50 to 85% by weight of the asphalt road paving composition according to the asphalt binder used.
또한, 본 발명에 따른 상기 잔골재는 0.075mm 이상 5mm 미만의 크기를 가지는 것으로서, 전체 아스팔트 도로 포장 조성물 중 10~35중량%의 범위 내에서 적절히 혼합하여 사용될 수 있다. In addition, the fine aggregate according to the present invention has a size of 0.075 mm or more and less than 5 mm, and may be appropriately mixed and used within the range of 10 to 35% by weight of the total asphalt road paving composition.
본 발명에서는 상기 잔골재 중 60~80중량%를 졸-겔 코팅된 PCM 함침 잔골재로 대체하여 발열 특성 향상을 위해 바람직하며, 60중량% 미만으로 치환되는 경우 발열 특성 향상 효과가 미흡하고 80중량%를 초과하여 잔골재의 함량이 너무 적은 경우 굵은 골재 사이의 공극을 채우게 되어 상대적으로 가격이 비싼 졸-겔 코팅된 PCM 함침 잔골재의 함량이 많아져 경제적으로 불리하다. In the present invention, 60 to 80% by weight of the fine aggregate is preferably replaced with sol-gel coated PCM-impregnated fine aggregate to improve heating characteristics, and when substituted with less than 60% by weight, the effect of improving heating characteristics is insufficient and If the content of the fine aggregate is too small, it is economically unfavorable because the content of the relatively expensive sol-gel coated PCM-impregnated fine aggregate increases because it fills the voids between the coarse aggregates.
또한, 상기 아스팔트 바인더는 일반적인 포장의 표층에 사용되는 밀립도 아스팔트 콘크리트(내유동성, 미끄럼 저항성 우수), 중교통량 이하 일반적인 포장의 내마모용 표층에 사용되는 밀립도 아스팔트 콘크리트(내마모성 우수 내유동성 비교적 낮음), 및 대형차 교통량이 많은 경우의 표층에 사용되는 내유동 아스팔트 콘크리트(내구성, 내유동성 우수) 등이 있으며, 소정의 용도에 맞도록 전체 아스팔트 도로 포장 조성물 중 1~10중량%의 범위 내에서 적절히 혼합하여 사용될 수 있다. In addition, the asphalt binder is a high-density asphalt concrete used in the surface layer of general pavement (excellent fluid resistance and slip resistance), a high-density asphalt concrete used in the surface layer for wear resistance of general pavement under medium traffic volume (excellent wear resistance, relatively low fluid resistance) ), and fluid-resistant asphalt concrete (excellent in durability and fluidity resistance) used for the surface layer in case of heavy vehicle traffic, etc., appropriately mixed within the range of 1 to 10% by weight of the total asphalt road paving composition to suit a given purpose and can be used.
또한, 상기 채움재는 통상의 아스팔트 도로 포장 콘크리트에 사용되는 것을 사용할 수 있다.In addition, the filling material used for ordinary asphalt road pavement concrete may be used.
이하에서 본 발명의 바람직한 실시예를 상세히 설명하기로 한다. 이하의 실시예는 본 발명을 예시하기 위한 것일 뿐, 본 발명의 범위가 이들 실시예에 의해 제한되는 것으로 해석되어서는 안 된다. 또한, 이하의 실시예에서는 특정 화합물을 이용하여 예시하였으나, 이들의 균등물을 사용한 경우에 있어서도 동등 유사한 정도의 효과를 발휘할 수 있음은 당업자에게 자명하다.Hereinafter, preferred embodiments of the present invention will be described in detail. The following examples are only for illustrating the present invention, and the scope of the present invention should not be construed as being limited by these examples. In addition, in the following examples, specific compounds were exemplified, but it is obvious to those skilled in the art that equivalent or similar effects can be exerted even when equivalents thereof are used.
실시예 1Example 1
1) PCM 함침 활성탄 잔골재 제조1) Manufacturing PCM impregnated activated carbon fine aggregate
다공성 골재로 입자 크기 1mm 이하인 야자계열의 입상 활성탄(㈜제성화학공업)을 사용하였다. 먼저 잘 씻은 골재를 24시간 동안 105℃의 오븐을 활용하여 말려주었다. 그 후 진공함침기(진공종합상사, 규격 지름 390mm 높이 500mm의 데시케이터에 에드워드8 진공펌프를 사용)를 이용하여 상변화물질(이수화학, N-Par 14(tetradecane)) 100ml을 상기 활성탄 80ml에 넣고 4시간 가량 함침시켰다. 그 다음, 이를 저온(15℃)에서 방치하여 상기 상변화물질의 상변화를 이용하여 상기 PCM 함침 활성탄 잔골재를 고체화시켰다. (도 6 참조)Coconut-based granular activated carbon (Jeseong Chemical Industry Co., Ltd.) with a particle size of 1 mm or less was used as a porous aggregate. First, the well-washed aggregate was dried using an oven at 105 °C for 24 hours. Then, 100 ml of the phase change material (Isu Chemical, N-Par 14 (tetradecane)) was mixed with 80 ml of the activated carbon using a vacuum impregnator (Vacuum General Co., Ltd., using an Edward 8 vacuum pump for a desiccator with a standard diameter of 390 mm and a height of 500 mm). and impregnated for about 4 hours. Then, it was left at a low temperature (15° C.) to solidify the PCM-impregnated activated carbon fine aggregate using the phase change of the phase change material. (See Fig. 6)
이후, 상변화물질이 함침된 다공성 골재의 표면에서 상변화물질을 제거하기 위하여 필터링 과정(filtering process)을 진행하였다. 참고로, 필터링 과정은 거름지나 메쉬 와이어와 같이 골재가 통과하지 않을 매우 미세한 구멍이 나있는 소재 위에 상변화물질이 함침된 다공성 골재를 두어 표면에 묻은 상변화물질을 흘러내리게 하여 제거하는 과정이다.Thereafter, a filtering process was performed to remove the phase change material from the surface of the porous aggregate impregnated with the phase change material. For reference, the filtering process is a process in which a porous aggregate impregnated with a phase change material is placed on a material having very fine holes through which the aggregate does not pass, such as a filter or mesh wire, and the phase change material deposited on the surface is removed by flowing down.
2)졸-겔 코팅된 PCM 함침 미세골재 제조2) Preparation of sol-gel coated PCM impregnated fine aggregate
TEOS(에틸 실리게이트)와 EtOH를 몰비 1:4의 비율로 60℃ 의 항온교반기에서 10분정도 섞어준 후 증류수를 TEOS와 8:1로, TEOS 중량 대비 10%의 실란 커플링제를 섞어 80℃의 항온교반기에서 20분 정도 섞어준다. 가수분해 속도와 혼화성 향상을 위해 HCl을 첨가하여 PH를 3~4 정도 맞추고 5분정도 저어준다. 겔화 시간을 단축하기 위해 NH4OH를 PH 7~8정도 되도록 넣어준 후, 상기 1)에서 제조된 PCM 함침 활성탄 미세골재를 위 용액에 넣어준 뒤 겔 형태가 될 때까지 저어주고 80℃ 상태의 항온기에서 건조시켰다. 상기 건조 후 뭉쳐진 졸-겔 코팅 미세골재를 잘게 갈아주어 나온 골재를 졸-겔 공법을 활용한 PCM 함침 미세골재를 제조하였다. After mixing TEOS (ethyl silicate) and EtOH at a molar ratio of 1:4 in a constant temperature stirrer at 60 ° C for about 10 minutes, distilled water was mixed with TEOS at a ratio of 8: 1 and a silane coupling agent of 10% by weight of TEOS, and then heated at 80 ° C. Mix for 20 minutes in a constant temperature shaker. To improve the hydrolysis rate and miscibility, add HCl to adjust the pH to 3-4 and stir for 5 minutes. In order to shorten the gelation time, NH 4 OH was added to a pH of about 7 to 8, then the PCM-impregnated activated carbon fine aggregate prepared in 1) was added to the above solution, stirred until it became a gel, and dried in an incubator. After the drying, the compacted sol-gel coated fine aggregate was finely ground to produce PCM impregnated fine aggregate using the sol-gel method.
3) 아스팔트 포장 도로용 콘크리트 제조3) Manufacture of concrete for asphalt pavement
아스팔트 포장 도로용 콘크리트 혼합물의 생산 제조 과정은 국토교통부 '아스팔트 혼합물 생산 및 시공 지침'을 따랐으며, 아스팔트 바인더 5중량%, 채움재 3.5중량%, 20mm 굵은 골재 20중량%, 13mm 굵은 골재 56.5중량%, 0.075mm 이상 5mm 이하 잔골재 5중량%, 상기 2)에서 제조된 졸-겔 공법을 활용한 PCM 함침 미세골재를 10중량%를 아스팔트 플랜트 믹서에 첨가하고, 이를 5 초 이상 혼합한 후 규정된 온도에서 ±10℃의 범위를 넘으면 안 되도록 조정된 온도 130℃로 가열된 아스팔트를 주입하고 균일한 혼합물이 될 때까지 30 초 이상 계속 혼합시켜 아스팔트 포장 도로의 표층용 콘크리트를 제조하였다.The production and manufacturing process of the concrete mixture for asphalt pavement followed the 'Asphalt Mixture Production and Construction Guidelines' of the Ministry of Land, Infrastructure and Transport, 5% by weight of asphalt binder, 3.5% by weight of filler material, 20% by weight of 20mm coarse aggregate, 0.075mm or more and 5mm or less fine aggregate 5% by weight and 10% by weight of the PCM-impregnated fine aggregate using the sol-gel method prepared in 2) above were added to the asphalt plant mixer, mixed for 5 seconds or more, and then mixed at the prescribed temperature. Concrete for the surface layer of an asphalt pavement was prepared by injecting asphalt heated to a temperature of 130 ° C, adjusted not to exceed the range of ± 10 ° C, and continuing to mix for more than 30 seconds until a uniform mixture was obtained.
실험예 1 : PCM 함침 전후 구조 확인 Experimental Example 1: Confirmation of structure before and after PCM impregnation
본 발명과 같이 PCM 물질이 활성탄 내에 잘 함침되어 있는지를 함침 전후의 주사전자현미경으로 관찰하였으며, 그 결과를 다음 도 7에 나타내었다.As in the present invention, whether the PCM material was well impregnated into the activated carbon was observed with a scanning electron microscope before and after impregnation, and the results are shown in FIG. 7 below.
다음 도 7을 참조하면, PCM 함침전 다공성 활성탄 미세골재는 그 표면에 무수한 다공이 형성되어 있음을 확인할 수 있다. 또한, 이러한 다공성 구조의 활성탄에 PCM을 함침시킨 다음, 이의 표면을 졸-겔 코팅시킨 후에는 그 표면 다공성 구조없이 졸-겔 코팅층으로 덮혀있는 것을 확인할 수 있다. 이러한 결과로부터 본 발명에 따라 제조된 졸-겔 코팅된 PCM 함침 미세골재는 미세골재로 사용된 다공성 활성탄 안으로 PCM이 잘 함침되고, 그 표면에는 졸-겔 코팅층이 형성되어 있어 PCM 물질을 포함하는 축열 성능을 잘 발휘할 수 있음을 기대할 수 있다. Referring to FIG. 7 below, it can be seen that countless pores are formed on the surface of the porous activated carbon fine aggregate before PCM impregnation. In addition, after impregnating PCM into the activated carbon having a porous structure and then applying a sol-gel coating on its surface, it can be seen that the surface is covered with a sol-gel coating layer without a porous structure. From these results, the sol-gel coated PCM-impregnated fine aggregate prepared according to the present invention is well impregnated with PCM into the porous activated carbon used as the fine aggregate, and a sol-gel coating layer is formed on the surface thereof to store heat containing the PCM material. You can expect it to perform well.
Claims (11)
An asphalt pavement composition comprising substituting a part of the fine aggregate with a sol-gel coated PCM-impregnated fine aggregate.
상기 졸-겔 코팅된 PCM 함침 미세골재는:
상변화물질(PCM)이 미세골재에 함침되고, 이를 졸-겔 용액으로 코팅시켜 이루어진 것인 아스팔트 포장 도로 조성물.
According to claim 1,
The sol-gel coated PCM impregnated fine aggregate is:
An asphalt pavement composition comprising a phase change material (PCM) impregnated into fine aggregate and coated with a sol-gel solution.
상기 상변화물질(PCM)은 옥탄(Octane, C8H18), 노난(Nonane, C9H20), 데칸(Decane, C10H22), 테트라데칸, 운데칸(Undecane, C11H24), 도데칸(Dodecane, C12H26), 펜타데칸(Pentadecane, C15H32), 헥사데칸(Hexadecane, C16H34), 이코산(Icosane, C20H42), 도코산(Docosane, C22H46), 트리아콘탄(Triacontane, C30H62), 테트라콘탄(Tetracontane, C40H82), 펜타콘탄(Pentacontane, C50H102) 및 헥사콘탄(Hexacontane, C60H122)으로 이루어진 그룹으로부터 선택되는 1종 이상의 파라핀 알칸 계열의 물질인 것인 아스팔트 포장 도로 조성물.
According to claim 2,
The phase change material (PCM) is octane (C 8 H 18 ), nonane (C 9 H 20 ), decane (C 10 H 22 ), tetradecane, undecane (C 11 H 24 ), Dodecane (C 12 H 26 ), Pentadecane (C 15 H 32 ), Hexadecane (C 16 H 34 ), Icosane (C 20 H 42 ), Docosane , C 22 H 46 ), triacontane (C 30 H 62 ), tetracontane (C 40 H 82 ), pentacontane (C 50 H 102 ) and hexacontane (Hexacontane, C 60 H 122 ) Asphalt pavement composition which is at least one paraffin alkane-based material selected from the group consisting of.
상기 상변화물질(PCM)은 0 ~ 100℃ 사이의 상변이온도를 가지는 것인 아스팔트 포장 도로 조성물.
According to claim 2,
The phase change material (PCM) is an asphalt pavement composition having a phase change temperature between 0 and 100 ° C.
상기 미세골재는 1mm 이하의 크기를 가지는 입상의 활성탄을 포함하는 것인 아스팔트 포장 도로 조성물.
According to claim 1,
The asphalt pavement composition of claim 1, wherein the fine aggregate includes granular activated carbon having a size of 1 mm or less.
상기 졸-겔 코팅시킨 PCM 함침 미세골재는 전체 잔골재 중 60~80중량%로 포함되는 것인 아스팔트 포장 도로 조성물.
According to claim 1,
The asphalt pavement composition of the sol-gel coated PCM impregnated fine aggregate is included in 60 to 80% by weight of the total fine aggregate.
상기 졸-겔 코팅시킨 PCM 함침 미세골재는 PCM이 함침된 미세골재를 졸 상태의 액체를 겔 상태의 고체로 변이하여 만들어진 실리카겔 박막을 이용하여 이루어진 것인 아스팔트 포장 도로 조성물.
According to claim 1,
The sol-gel coated PCM-impregnated fine aggregate is composed of a silica gel thin film made by transforming the PCM-impregnated fine aggregate into a solid in a gel state from a liquid in a sol state.
An asphalt paved road concrete comprising the asphalt paved road composition according to claim 1 as a surface layer of an asphalt paved road.
상기 PCM 함침 미세골재를 졸-겔 공법을 이용하여 코팅시켜 졸-겔 코팅된 PCM 함침 미세골재 제조하는 단계,
아스팔트 도로 포장 콘크리트 조성과 상기 졸-겔 코팅된 PCM 함침 미세골재를 배합시켜 배합 슬러리를 제조하는 단계,
상기 배합 슬러리에 보강철근을 사용하여 강도를 보강시키고 몰드에 세팅한 후 배합 슬러리를 타설하는 단계, 및
상기 배합 슬러리를 경화 및 양생시키는 단계를 포함하는 제1항에 따른 아스팔트 도로 포장 콘크리트의 제조방법.
Preparing a PCM-impregnated fine aggregate by impregnating a phase change material (PCM) into granular activated carbon, which is a fine aggregate;
Coating the PCM-impregnated fine aggregate using a sol-gel method to prepare a sol-gel coated PCM-impregnated fine aggregate,
Preparing a mixed slurry by mixing the asphalt road pavement concrete composition and the sol-gel coated PCM-impregnated fine aggregate,
Reinforcing the strength of the blended slurry using reinforcing bars, setting it in a mold, and pouring the blended slurry, and
A method for producing asphalt road pavement concrete according to claim 1, comprising curing and curing the mixed slurry.
상기 PCM 함침 미세골재 제조시, PCM 100부피비에 대하여 미세골재는 60~90부피비로 포함되는 것인 제조방법.
According to claim 9,
When manufacturing the PCM-impregnated fine aggregate, the fine aggregate is included in a volume ratio of 60 to 90 with respect to the PCM 100 volume ratio.
상기 졸-겔 코팅시, 졸 용액의 pH는 3~4이고, 겔화시 상기 용액의 pH는 7~8로 유지시키는 것인 제조방법.
According to claim 9,
In the sol-gel coating, the pH of the sol solution is 3 to 4, and the pH of the solution is maintained at 7 to 8 during gelation.
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| US20160067609A1 (en) | 2012-03-15 | 2016-03-10 | Game Complex. Inc. | Novel real time physical reality immersive experiences having gamification of actions taken in physical reality |
| KR101618352B1 (en) * | 2014-11-07 | 2016-05-04 | 라성에너지(주) | Heat resistant thermal storage materials using paraffin phase change materials and preparation method thereof |
| KR102300808B1 (en) | 2020-12-22 | 2021-09-13 | 한국건설기술연구원 | Heat accumulation and releasing material using phase change material-embedded natural cellulose fiber, and manufacturing method using the same |
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2021
- 2021-11-15 KR KR1020210156495A patent/KR102631304B1/en active IP Right Grant
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| KR20050076271A (en) * | 2004-01-20 | 2005-07-26 | 정길례 | An incombustible construction mineral material having coating surface, and the manufacturing method |
| KR20060067803A (en) * | 2004-12-15 | 2006-06-20 | 주식회사 엘지화학 | Light-weight panel with high strength for access floor and preparation thereof |
| US20160067609A1 (en) | 2012-03-15 | 2016-03-10 | Game Complex. Inc. | Novel real time physical reality immersive experiences having gamification of actions taken in physical reality |
| KR101618352B1 (en) * | 2014-11-07 | 2016-05-04 | 라성에너지(주) | Heat resistant thermal storage materials using paraffin phase change materials and preparation method thereof |
| KR102300808B1 (en) | 2020-12-22 | 2021-09-13 | 한국건설기술연구원 | Heat accumulation and releasing material using phase change material-embedded natural cellulose fiber, and manufacturing method using the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117973094A (en) * | 2024-03-29 | 2024-05-03 | 中交第一公路勘察设计研究院有限公司 | Phase-change coarse aggregate mixing amount calculating method, manufacturing method and temperature-regulating pavement |
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| KR102631304B1 (en) | 2024-01-29 |
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