KR20040100202A - Concrete Composition for Lightweight and Sound Absorber and Method of Making The Same - Google Patents
Concrete Composition for Lightweight and Sound Absorber and Method of Making The Same Download PDFInfo
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- KR20040100202A KR20040100202A KR1020030032462A KR20030032462A KR20040100202A KR 20040100202 A KR20040100202 A KR 20040100202A KR 1020030032462 A KR1020030032462 A KR 1020030032462A KR 20030032462 A KR20030032462 A KR 20030032462A KR 20040100202 A KR20040100202 A KR 20040100202A
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- 239000000203 mixture Substances 0.000 title claims abstract description 37
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 239000004567 concrete Substances 0.000 title claims abstract description 18
- 239000006096 absorbing agent Substances 0.000 title 1
- 239000004568 cement Substances 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910001562 pearlite Inorganic materials 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 12
- 239000000835 fiber Substances 0.000 claims abstract description 11
- 239000004088 foaming agent Substances 0.000 claims abstract description 11
- 239000003607 modifier Substances 0.000 claims abstract description 9
- 229920000642 polymer Polymers 0.000 claims abstract description 8
- 239000002023 wood Substances 0.000 claims abstract description 8
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 7
- 239000010455 vermiculite Substances 0.000 claims abstract description 7
- 229910052902 vermiculite Inorganic materials 0.000 claims abstract description 7
- 235000019354 vermiculite Nutrition 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 5
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 5
- 239000003513 alkali Substances 0.000 claims description 4
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 2
- 235000012239 silicon dioxide Nutrition 0.000 claims description 2
- 239000011358 absorbing material Substances 0.000 abstract description 13
- 239000011148 porous material Substances 0.000 abstract description 10
- 239000002699 waste material Substances 0.000 abstract description 10
- 238000010521 absorption reaction Methods 0.000 abstract description 8
- 238000009413 insulation Methods 0.000 abstract description 8
- 238000005452 bending Methods 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 abstract description 4
- 230000005484 gravity Effects 0.000 abstract description 4
- 230000000704 physical effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008014 freezing Effects 0.000 abstract description 2
- 238000007710 freezing Methods 0.000 abstract description 2
- 238000010257 thawing Methods 0.000 abstract description 2
- 238000001035 drying Methods 0.000 abstract 1
- 239000010451 perlite Substances 0.000 abstract 1
- 235000019362 perlite Nutrition 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 239000011398 Portland cement Substances 0.000 description 7
- 239000000843 powder Substances 0.000 description 5
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 4
- 229910052601 baryte Inorganic materials 0.000 description 4
- 239000010428 baryte Substances 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 229910052613 tourmaline Inorganic materials 0.000 description 4
- 229940070527 tourmaline Drugs 0.000 description 4
- 239000011032 tourmaline Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000002940 repellent Effects 0.000 description 3
- 239000005871 repellent Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 239000002519 antifouling agent Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- HOOWDPSAHIOHCC-UHFFFAOYSA-N dialuminum tricalcium oxygen(2-) Chemical group [O--].[O--].[O--].[O--].[O--].[O--].[Al+3].[Al+3].[Ca++].[Ca++].[Ca++] HOOWDPSAHIOHCC-UHFFFAOYSA-N 0.000 description 2
- BCAARMUWIRURQS-UHFFFAOYSA-N dicalcium;oxocalcium;silicate Chemical compound [Ca+2].[Ca+2].[Ca]=O.[O-][Si]([O-])([O-])[O-] BCAARMUWIRURQS-UHFFFAOYSA-N 0.000 description 2
- 239000011381 foam concrete Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 239000000391 magnesium silicate Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 235000019976 tricalcium silicate Nutrition 0.000 description 2
- 229910021534 tricalcium silicate Inorganic materials 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000012243 magnesium silicates Nutrition 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 208000023504 respiratory system disease Diseases 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- JHJUUEHSAZXEEO-UHFFFAOYSA-M sodium;4-dodecylbenzenesulfonate Chemical compound [Na+].CCCCCCCCCCCCC1=CC=C(S([O-])(=O)=O)C=C1 JHJUUEHSAZXEEO-UHFFFAOYSA-M 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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
- C04B20/1055—Coating or impregnating with inorganic materials
- C04B20/1077—Cements, e.g. waterglass
- C04B20/1085—Waterglass
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/642—Cooling of the microwave components and related air circulation systems
-
- 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
- C04B28/04—Portland cements
-
- 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
- C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
-
- 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
- C04B2111/52—Sound-insulating materials
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Building Environments (AREA)
Abstract
본 발명은 다수의 연속 및 독립기공을 가지고 강도, 내구성, 방수성, 내열성 및 흡 차음성이 양호하고 생산성이 우수한 무기질계 다공질 경량콘크리트 흡 차음재로 철도, 도로, 및 공장 등에서 발생되는 소음을 억제하는 흡 차음 벽재 또는 건축물 등의 차음이나 흡음 성능을 향상시키고자 하는 새로운 경량 흡음 콘크리트 조성물과 복합판재의 제조방법에 관한 것이다.The present invention is an inorganic porous lightweight concrete sound absorbing material having a plurality of continuous and independent pores, good strength, durability, water resistance, heat resistance and sound insulation and excellent productivity, and suppresses noise generated in railways, roads, and factories. The present invention relates to a method for producing a new lightweight sound-absorbing concrete composition and composite plate to improve sound insulation and sound absorption performance of soundproof walls and buildings.
본 발명의 흡음 경량콘크리트 조성물은 보통시멘트와 속경성인 특수시멘트와의 혼합 비율이 80∼30 : 20∼70되게 혼합한 시멘트계 조성물 65∼75중량%에 표면 개질 발포 펄라이트 15∼30중량%, 및 폐 섬유 1∼5중량%를 혼합한 것으로 흡음 판재의 제조방법은 상기한 혼합 재료에 기포제 0.1∼0.5중량%와 폴리머 모디파이어 3∼10중량% 첨가하여 물/시멘트 비를 0.45∼0.65되게 물을 첨가하여 몰탈을 제조한다. 이 몰탈을 판상의 형틀에 투입하고 진동하여 상온(0∼40℃)에서 성형 한 후 자연 건조 양생시킨다. 펄라이트의 대체나 혼용재료로 발포 질석 또는 목편을 사용 할 수 도 있다.The sound-absorbing lightweight concrete composition of the present invention is 15 to 30% by weight of the surface-modified expanded pearlite to 65 to 75% by weight of the cement-based composition, which is mixed so that the mixing ratio between the ordinary cement and the special cement having a hard hardness is 80 to 30:20 to 70, and 1 to 5% by weight of waste fibers are mixed, and the method for producing a sound absorbing plate is 0.1 to 0.5% by weight of the foaming agent and 3 to 10% by weight of the polymer modifier in the above-described mixed material, and water is added so that the water / cement ratio is 0.45 to 0.65. To prepare mortar. The mortar is put into a plate-shaped mold, vibrated and molded at room temperature (0 to 40 ° C), followed by natural drying and curing. Foamed vermiculite or wood chips may be used as a substitute for or mixed with perlite.
본 발명 제품의 물성은 겉보기 비중이 0.5∼0.7이고 압축강도 약 40㎏/㎠이상, 굽힘강도 10㎏/㎠이상이며 평균 흡음율이 약 0.5∼0.8 이며 내수성 및 내구성을 가지고 있다.The physical properties of the product of the present invention has an apparent specific gravity of 0.5 to 0.7, compressive strength of about 40 kg / cm 2 or more, bending strength of 10 kg / cm 2 or more, and an average sound absorption rate of about 0.5 to 0.8, and has water resistance and durability.
본 발명의 경량 흡음 콘크리트 판넬은 종래의 ALC 판넬과 비교하여 고온 고압의 양생과정을 생략하고 비교적 가격이 저렴한 재료를 사용하여 제조하는 방법으로제품의 부가가치를 향상시킴으로서 경제성을 높이는데 그 효과가 있다. 한편 본 제품은 기존의 방음 판넬이 가지고 있는 여러 가지 단점을 극복하여 시공의 간편성, 수명연장(내후성, 동결융해성) 등을 기할 수 있게 되었다.The lightweight sound-absorbing concrete panel of the present invention has an effect of improving economics by improving the added value of the product by omitting the curing process of high temperature and high pressure compared to the conventional ALC panel and using a relatively inexpensive material. On the other hand, this product can overcome various shortcomings of the existing soundproofing panel, thus making it easy to install and extending its life (weather resistance, freezing and thawing).
Description
현재 보온, 단열, 흡음재로 사용하고 있는 유리섬유나 암면은 철거 및 붕괴 과정에서 많은 양의 분진이 발생하고 인체에 유해한 호흡기 질환과 발암물질을 발생시켜 세계적으로 그 사용을 규제하고 있으며 또한 점차 고층화 되어가고 있는 아파트의 층간 소음이나 진동 등이 사회 문제로 대두되고 있는 실정이다. 그러므로 주택이나 도로 및 공장 지역에서 사용되는 흡 차음벽은 새로운 소재의 개발을 필요로 하여 본 발명 제품을 개발하게 되었다.Glass fiber or rock wool, which is currently used as insulation, insulation and sound absorbing material, generates a large amount of dust during demolition and collapse, generates respiratory diseases and carcinogens that are harmful to the human body, and regulates its use worldwide. Floor noise and vibration in apartments are becoming a social problem. Therefore, the sound absorbing and insulating walls used in homes, roads, and factory areas require the development of new materials and thus the present invention.
본 발명은 다수의 연속 및 독립기공을 가지고 강도, 단열성, 방수성, 내열성 및 흡 차음성이 양호하고 생산성이 우수한 무기질계 다공질 경량콘크리트 흡 차음재로 철도, 도로, 및 공장 등에서 발생되는 소음을 억제하는 흡 차음 벽재 또는 건축물 등의 차음이나 흡음 성능을 향상시키고자 하는 새로운 경량 흡음 콘크리트 조성물과 복합판재의 제조방법에 관한 것이다.The present invention is an inorganic porous lightweight concrete sound absorbing material having a large number of continuous and independent pores, good strength, heat insulation, water resistance, heat resistance and sound insulation and excellent productivity, and suppresses noise generated in railways, roads, and factories. The present invention relates to a method for producing a new lightweight sound-absorbing concrete composition and composite plate to improve sound insulation and sound absorption performance of soundproof walls and buildings.
종래의 흡음재로 사용되는 대표적인 경량콘크리트 2차 제품은 시멘트, 석회 및 규산질 미분말에 기포제를 첨가하여 증기양생 또는 고온 고압의 수증기로 양생하여 제조하는 ALC 재료들로 흡음성이나 기타 재료의 물성 등은 우수하나 생산원가의 상승 등으로 지금까지 각광을 받지 못하고 있는 실정이다. 이와 관련된 기술들로는 대한민국 공개특허공보 제2002-003053의 "경량기포콘크리트를 이용한 흡차음재의 제조방법", 동 제2000-060707의 "경량기포콘크리트를 사용한 흡음형 방음판넬" 및 제1996-00800의 "콘크리트 흡음재의 제조방법" 등과 일본공개특허공보 제 소53-88024, 및 소58-187305 등이 있으며 이들 제조방법은 콘크리트 원료에 기포제와 물을 혼련시켜 기포를 발생시키고 일차 양생시킨 다음 오토클레이브를 사용하여 고온 고압 양생을 실시하는 방법으로 제조설비나 생산비용면에서 불리한 점이 많다.Representative lightweight concrete secondary products used as conventional sound absorbing materials are ALC materials manufactured by curing by steam curing or steam at high temperature and high pressure by adding foaming agent to cement, lime and siliceous fine powder. The company has not received much attention until now due to rising production costs. As related technologies, Korean Patent Laid-Open Publication No. 2002-003053, "Method of manufacturing sound absorbing and insulating material using light foamed concrete", "Sound absorbing soundproof panel using light foamed concrete" of No. 2000-060707 and "Concrete of No. 1996-00800" Manufacturing method of sound absorbing material "and Japanese Patent Application Laid-Open No. 53-88024, and 58-187305. These manufacturing methods are made by mixing foaming agent and water in the raw material of concrete to generate bubbles, curing them first, and then using autoclave. As a method of performing high temperature and high pressure curing, there are many disadvantages in terms of manufacturing equipment and production cost.
본 발명은 상기한 바와 같은 고온 고압 양생을 실시하지 않고도 소정의 강도와 제반 물성을 갖춘 경량 흡음 콘크리트의 조성물과 그 제조방법을 규명하고자 한 것으로 본 발명의 경량콘크리트 흡음재를 철도, 고속도로변의 방음벽이나 소음 발생이 심한 공장 등의 흡 차음재로 활용하고자 할 경우 흡 차음성 이외에도 표면경도, 강도, 단열성, 및 내구성이 우수하여야 하며 한편 판재의 비중 역시 가벼워야 하는 필수 조건을 갖추어야 한다.The present invention is to identify the composition of the light-weight sound-absorbing concrete having a predetermined strength and all physical properties and a method of manufacturing the same without the high temperature and high pressure curing as described above. In order to utilize as a sound absorbing and insulating material of a factory, which has a high occurrence, it should be excellent in surface hardness, strength, heat insulation, and durability in addition to the sound absorbing and insulating property.
따라서 본 발명은 상기한 여러 가지 조건을 만족시킬 수 있는 즉 겉보기 비중이 0.5∼0.7이고 압축강도 약 40㎏/㎠이상, 굽힘강도 10㎏/㎠이상이며 평균 흡음율이 약 0.5∼0.8 이며 내수성 및 내구성을 갖춘 복합판재의 조성물과 그 제조방법을 제시함으로서 본 발명의 기술적 과제를 달성하고자 한 것이다.Therefore, the present invention can satisfy the above various conditions, that is, the apparent specific gravity is 0.5 ~ 0.7, the compressive strength is about 40㎏ / ㎠ or more, the bending strength is more than 10㎏ / ㎠ and the average sound absorption is about 0.5 ~ 0.8 and the water resistance and durability It is intended to achieve the technical problem of the present invention by presenting a composition of the composite plate and a method of manufacturing the same.
본 발명의 경량 콘크리트 흡음재는 수경성 결합재의 조성물이 트리칼슘 알루미네이트(3CaO·5Al2O3), 트리칼슘 실리케이트(3CaO·SiO2), 칼슘알루미네이트 설페이트(4CaO·3Al2O3·SO3) 및 칼슘,철,마그네시움 실리케이트((Ca·Fe·Mg)SiO3)로 구성된 속경성이고 고강도를 나타내는 특수 시멘트와 보통 포트랜드 시멘트를 혼용한 것과 경량 골재 및 흡음재로 발포 펄라이트, 발포 질석, 목편 및 폐 섬유를 혼화재로 사용하고 기포제, 방수제, 및 방오제 등을 혼합한 재료에 물을 첨가하여 몰탈을 형성한 경량콘크리트 흡음재 패널을 제조하고자 한 것이다.Lightweight concrete sound absorbing material of the present invention is a composition of the hydraulic binder is tricalcium aluminate (3CaO 5Al 2 O 3 ), tricalcium silicate (3CaOSiO 2 ), calcium aluminate sulfate (4CaO 3Al 2 O 3 · SO 3 ) And a mixture of fast and high strength special cements composed of calcium, iron and magnesium silicates ((Ca · Fe · Mg) SiO 3 ) and ordinary portland cement, as well as light weight aggregates and sound absorbing materials. And it is intended to manufacture a light-weight concrete sound-absorbing material panel using a waste fiber as a mixed material and adding water to a material mixed with a foaming agent, waterproofing agent, antifouling agent and the like.
경량골재와 흡음재로 사용되는 발포 펄라이트는 연속기공 상태의 다공성 물질이어서 흡음 특성은 좋으나 흡수성 및 투수성이 심하여 복합소재로 혼합된 흡음 소재로 사용 할 경우 외부의 습기로부터 방수 및 발수 기능을 갖도록 하는 기술이 가장 큰 문제로 대두된다.Foamed pearlite, used as light weight aggregate and sound absorbing material, is a porous material in a continuous pore state, so it has good sound absorbing properties, but it has high absorbency and water permeability, so it is waterproof and water repellent from external moisture when used as a sound absorbing material mixed with composite materials. This is the biggest problem.
따라서 본 발명에서는 발포 펄라이트가 방수 발수 및 연속기공을 갖는 표면조직을 가질 수 있도록 개발하였다. 즉 펄라이트 입자 표면에 금속염 특히 콜로이탈 시리카에 물과 금속염을 몰비(SiO2/M2O, M=K, Na, Li)가 3.5∼5.8로 된 수용액을 분무 건조하여 펄라이트 표면이 다공질 상태의 방수물질로 코팅된 표면개질 펄라이트 흡음소재를 개발하였다.Therefore, in the present invention, the expanded pearlite was developed to have a surface structure having waterproof water repellent and continuous pores. In other words, water and metal salts are spray-dried on the surface of the pearlite particles, in particular colloidal silica, in which water and metal salts have a molar ratio (SiO 2 / M 2 O, M = K, Na, Li) of 3.5 to 5.8. A surface modified pearlite sound absorbing material coated with a material was developed.
상기한 흡음재 패널은 그 용도에 따라 비중이나 강도를 적절히 조절 할 수있으며 혼화재 및 기타 첨가재의 종류 및 첨가량이 국한되게 사용되는 것은 아니다.The sound absorbing panel described above can adjust the specific gravity or strength according to the purpose and is not limited to the type and amount of admixtures and other additives.
본 발명에 사용한 수경성 결합재는 그 조성물이 트리칼슘 알루미네이트(3CaO·5Al2O3), 트리칼슘 실리케이트(3CaO·SiO2), 칼슘알루미네이트 설페이트(4CaO·3Al2O3·SO3) 및 칼슘,철,마그네시움 실리케이트((Ca·Fe·Mg)SiO3)로 구성된 속경성 및 고강도 특수 시멘트와 보통 포트랜드 시멘트로 그 화학 조성은 다음 표 1.과 같다.The hydraulic binder used in the present invention is composed of tricalcium aluminate (3CaO.5Al 2 O 3 ), tricalcium silicate (3CaO.SiO 2 ), calcium aluminate sulfate (4CaO.3Al 2 O 3 .SO 3 ) and calcium. Fast and high-strength special cement composed of iron, magnesium silicate ((Ca · Fe · Mg) SiO 3 ) and ordinary portland cement, the chemical composition of which is shown in Table 1.
경량 골재와 연속 기공을 가진 흡음재용 골재로는 표면 개질 발포 펄라이트, 발포 질석, 목편 및 유기 섬유 (생산 공장에서 폐기되는 폐 섬유) 등을 이용한다. 폐 섬유는 판재의 굽힘 강도 향상과 크랙 등을 방지할 목적으로 첨가하며 발포 펄라이트는 비중이 약 0.02∼0.05정도의 경량으로 공극율이 약 50% 이상이고 연속 공극으로 이루어져 있어 입수된 사운드 에너지를 열 에너지로 변환시켜 흡수 소멸시킬 수 있으며 한편 발포 질석, 목편 및 폐 섬유 등 역시 흡음 효과를 발휘한다.As a light aggregate and a sound absorbing aggregate having continuous pores, surface-modified expanded pearlite, expanded vermiculite, wood chips and organic fibers (waste fibers discarded at the production plant) and the like are used. Waste fiber is added for the purpose of improving the bending strength and cracking of the plate, and foamed pearlite has a specific gravity of about 0.02 to 0.05, and has a specific porosity of about 50% or more and consists of continuous pores. Can be absorbed and extinguished, while foamed vermiculite, wood chips and waste fibers are also sound absorbing.
표 1. 시멘트 조성물의 화학분석치Table 1. Chemical Analysis of Cement Compositions
발포 질석은 팽창된 판상의 결정입자들로 구성되어 흡음 및 차음 효과와 경량 골재로의 역할을 담당하고 입자의 크기는 2∼3㎜것을 사용한다. 목편은 제재소 등에서 발생하는 폐 자재로 그 크기가 길이 약 1∼2㎝, 두께 약 0.1㎜ 이하, 폭 약 0.5㎝ 이하인 것과 평균 입경이 약 5㎜ 이하인 목편 등이다.Foamed vermiculite is composed of expanded plate-shaped crystal grains, which acts as a sound absorbing and insulating effect and a lightweight aggregate, and uses a particle size of 2-3 mm. Wood chips are waste materials produced in mills and the like, and are about 1 to 2 cm in length, about 0.1 mm or less in thickness, about 0.5 cm or less in width, and wood pieces having an average particle diameter of about 5 mm or less.
표면 개질 발포 펄라이트는 입자 크기가 약 0.2∼2㎜인 것으로 그 표면에 알카리성 규산염을 코팅 처리한 것으로 규산과 알칼리의 몰비(SiO2/M2O)가 3.5∼5.8인 저 알칼리성 규산염 수용액(콜로이달 실리카 30% 수용액)을 발포 펄라이트에 코팅 처리함으로서 펄라이트의 내수성, 내후성, 내식성, 내약품성, 내열충격성, 내마모성을 현저하게 향상시킬 수 있도록 하고, 저온(약 300℃이하)에서도 쉽게 경화되면서 견고한 접착강도를 유지할 수 있도록 한 것이다. 상기한 규산염 수용액의 분무량은 발포 펄라이트 중량에 대해여 5∼15중량% 범위이며 5%이하의 분무량은 충분한 발수 성능을 발휘 할 수 없고 15중량% 이상에서는 강도나 발수 성능은 향상되나 경제성 등에 문제가 있다. 표면 개질된 펄라이트는 조성물 중 시멘트와 반응하여 저온에서도 쉽게 경화되면서 견고하며 일정한 강도를 유지할 수 있다.The surface-modified expanded pearlite has a particle size of about 0.2 to 2 mm and is coated with an alkali silicate on its surface, and an aqueous solution of low alkaline silicate having a molar ratio of silicic acid and alkali (SiO 2 / M 2 O) of 3.5 to 5.8 (colloidal) By coating 30% aqueous silica solution on expanded pearlite, it is possible to remarkably improve the water resistance, weather resistance, corrosion resistance, chemical resistance, thermal shock resistance, and abrasion resistance of pearlite, and it is easily cured even at low temperature (below about 300 ℃) and firm adhesive strength To keep it. The spraying amount of the above-mentioned silicate aqueous solution is in the range of 5 to 15% by weight relative to the weight of the expanded pearlite, and the spraying amount of 5% or less may not exhibit sufficient water repellent performance. have. The surface-modified pearlite reacts with the cement in the composition to easily cure even at low temperatures and maintain a firm and constant strength.
본 발명에 특이할 사항은 표면 개질 처리된 발포 펄라이트는 연속발포기공을 이용한 모공(공극)을 유지하면서 방수 및 발수기능이 탁월하며 혼합조성물의 내수성을 월등히 향상시킨다.What is particular to the present invention is that the surface-treated foamed pearlite has excellent waterproofing and water repellency while maintaining pores (pores) using continuous foaming pores, and greatly improves the water resistance of the mixed composition.
기포제로는 도데실 벤젠 소디움 설포네이트를 사용하였고, 접착력, 내수성, 내구성, 및 동결 융해성 등의 성능 향상을 위해 폴리머 모디파이어로 산화 방지제가 함유된 비이온성 카복실 스티렌 코폴리머 에멀전(Non-ionic Carboxylated Stylene Copolymer Emulsion)을 사용하였다.As the foaming agent, dodecyl benzene sodium sulfonate was used.Non-ionic Carboxylated Stylene containing an antioxidant as a polymer modifier to improve performance such as adhesion, water resistance, durability, and freeze thawability (Non-ionic Carboxylated Stylene) Copolymer Emulsion) was used.
흡음 판재를 제조하기 위하여 상기한 재료들의 구성 비율을 보통시멘트와 속경성인 특수시멘트와의 혼합 비율이 80∼30 : 20∼70되게 혼합한 시멘트계 조성물 65∼75중량%에 펄라이트 15∼30중량%, 폐 섬유 1∼5중량%를 혼합한 재료에 기포제 0.1∼0.5중량%와 폴리머 모디파이어 3∼10중량% 첨가하여 물/시멘트 비를 0.45∼0.65되게 물을 첨가하여 몰탈을 제조한다. 이 몰탈을 판상의 형틀에 투입하고 진동하여 성형 한 후 상온(0∼40℃)에서 자연 건조 양생하였다. 7∼28일 양생한 제품은 적당한 모양과 크기로 절단하여 여러 물성을 측정하였다. 상기한 조성물 중 펄라이트 대신에 발포 질석 이나 목편 등을 대체 혹은 혼용하여 배합 할 수 도 있다. 방오제로는 천연 전기석과 중정석을 혼합한 광석을 -200메쉬 이하의 미분으로 분쇄한 것을 경량 흡음 콘크리트 조성물 전체 량에 대해 약 1∼5중량% 첨가하였다.In order to manufacture the sound absorbing plate, the composition ratio of the above-mentioned materials is 80 to 30: 20 to 70, and the mixing ratio of the normal cement and the special cement of fast hardening is 65 to 75 weight% of the cement composition, 15 to 30 weight% of pearlite. To the material mixed with 1 to 5% by weight of waste fibers, 0.1 to 0.5% by weight of the foaming agent and 3 to 10% by weight of the polymer modifier are added, and water is added so that the water / cement ratio is 0.45 to 0.65. The mortar was put into a plate-shaped mold, vibrated and molded, and then dried and dried at room temperature (0 to 40 ° C). The products cured for 7 to 28 days were cut into appropriate shapes and sizes and measured for various physical properties. Instead of pearlite, expanded vermiculite or wood chips may be substituted or mixed in the above composition. As antifouling agent, about 1 to 5% by weight of ore mixed with natural tourmaline and barite was ground to fine powder of -200 mesh or less based on the total amount of light-weight sound-absorbing concrete composition.
상기한 시멘트계 조성물 중 보통 포트랜드 시멘트와 속경성 시멘트의 혼합비율에 있어서 속경성 시멘트 첨가량의 최고 첨가량을 70중량%로 제한 것은 이 첨가량 이상에서는 몰탈의 초기 응결시간이 너무 짧아(약 15분) 작업시간의 확보가 어렵기 때문이며 20중량% 이하에서는 응결시간이 길어지고 강도 역시 감소하는 경향이 있다. 펄라이트의 첨가량이 30중량% 이상에서는 전체 조성물의 부피 비율에서 펄라이트가 차지하는 비율이 90% 이상이 되어 몰탈 형성이 어렵고 따라서 강도 역시 떨어지는 단점이 있다.In the above cement composition, the maximum addition amount of fast cement is limited to 70% by weight in the mixing ratio of Portland cement and fast cement. The initial setting time of mortar is too short (about 15 minutes) above this amount. This is because it is difficult to secure the temperature. At 20 wt% or less, the setting time is long and the strength tends to decrease. If the added amount of pearlite is 30% by weight or more, the proportion of pearlite in the volume ratio of the total composition is 90% or more, which makes it difficult to form mortar and thus has a disadvantage in that the strength is also low.
압축강도 측정용(KS L 5105)으로는 5㎝x5㎝x5㎝의 큐빅 모양으로 절단하고 흡음율 측정용(KS F 2805)으로는 직경이 10㎝인 원판 모양의 시료를 두께를 달리하여 절단한 후 수직입사 흡음 특성을 조사하였다.For the measurement of compressive strength (KS L 5105), cut into cubic shapes of 5 cm x 5 cm x 5 cm, and for the sound absorption measurement (KS F 2805), cut a disk-shaped sample of 10 cm in diameter with different thicknesses. Vertical incidence sound absorption characteristics were investigated.
다음에 구체적인 실시예를 통하여 흡음 판재의 제조방법에 대해 설명하고자 한다.Next, a method of manufacturing a sound absorbing plate will be described through specific examples.
＜실시예 1.＞<Example 1.>
시멘트계 조성물이 보통 포트랜드 시멘트 70중량%, 속경성 시멘트 30중량%를 혼합한 것에 규산염 코팅 발포 펄라이트를 30중량%를 첨가한 시멘트계 조성물 전체량에 대해 기포제 0.2중량%, 폴리머 모디파이어 5중량%, 폐섬유 5중량%를 첨가하여 혼합하고 이 혼합 조성물 전체 중량에 대해 1.5중량%의 전기석과 중정석을 혼합한 광석 분말을 첨가한다. 물/시멘트비가 0.40되게 물을 첨가하여 혼합 믹서에서 혼합 한 후 판상의 형틀에 투입하여 진동 성형하여 상온에서 자연 양생시켰다.0.2% by weight of foaming agent, 5% by weight of polymer modifier, waste fiber to the total amount of cement-based composition in which the cement composition is a mixture of 70% by weight of Portland cement and 30% by weight of fast cement, and 30% by weight of silicate-coated expanded pearlite. 5 weight% is added and mixed, and the ore powder which mixed 1.5 weight% of tourmaline and barite with respect to the total weight of this mixed composition is added. Water was added so that the water / cement ratio was 0.40, mixed in a mixing mixer, and then poured into a plate-shaped mold and vibrated to naturally cure at room temperature.
＜실시예 2.＞<Example 2.>
시멘트계 조성물이 보통 포트랜드 시멘트 30중량%, 속경성 시멘트 70중량%를 혼합한 것에 발포 질석을 30중량%를 첨가한 시멘트계 조성물 전체량에 대해 기포제 0.2중량%, 폴리머 모디파이어 5중량%, 폐 섬유 5중량%를 첨가하여 혼합하고 이 혼합 조성물 전체 중량에 대해 1.5중량%의 전기석과 중정석을 혼합한 광석 분말을 첨가한다. 물/시멘트비 0.35되게 물을 첨가하여 혼합 믹서에서 혼합 한 후 판상의 형틀에 투입하여 진동하여 성형한 후 상온에서 자연양생 시켰다.0.2% by weight of foaming agent, 5% by weight of polymer modifier, 5% of waste fiber to the total amount of cement-based composition in which cement composition is 30% by weight of Portland cement and 70% by weight of fast cement, and 30% by weight of expanded vermiculite is added. Mix by adding% and add ore powder of 1.5% by weight of tourmaline and barite with respect to the total weight of the mixed composition. Water was added at a water / cement ratio of 0.35, mixed in a mixer, mixed in a plate-shaped mold, vibrated, and naturally cured at room temperature.
＜실시예 3.＞<Example 3.>
시멘트계 조성물이 보통 포트랜드 시멘트 80중량%, 속경성 시멘트 20중량%를 혼합한 것에 목편을 30중량%를 첨가한 시멘트계 조성물 전체량에 대해 기포제 0.2중량%, 폴리머 모디파이어 5중량%, 폐 섬유 5중량%를 첨가하여 혼합하고 이 혼합 조성물 전체 중량에 대해 1.5중량%의 전기석과 중정석을 혼합한 광석 분말을 첨가한다. 물/시멘트비 0.35되게 물을 첨가하여 혼합 믹서에서 혼합 한 후 판상의 형틀에 투입하여 진동하여 성형한 후 상온에서 자연양생 시켰다.0.2% by weight of foaming agent, 5% by weight of polymer modifier, 5% by weight of waste fiber, based on the total amount of cement-based composition, in which the cement composition usually contains 80% by weight of Portland cement and 20% by weight of fast cement, and 30% by weight of wood chips. The mixture is added and mixed, and an ore powder obtained by mixing 1.5% by weight of tourmaline and barite with respect to the total weight of the mixed composition is added. Water was added at a water / cement ratio of 0.35, mixed in a mixer, mixed in a plate-shaped mold, vibrated, and naturally cured at room temperature.
＜비교예 1＞<Comparative Example 1>
시멘트계 조성물이 보통 포트랜드 시멘트 70중량%, 규산염 코팅 발포 펄라이트를 30중량%로 이루어진 조성물에 대해 기포제 0.2중량%, 폴리머 모디파이어 5중량%를 첨가하여 혼합하고 물/시멘트비가 0.40되게 물을 첨가하여 혼합 믹서에서 혼합 한 후 판상의 형틀에 투입하여 진동하여 성형한 후 상온에서 자연 양생시켰다.Mixing Mixer Mixing Cement Composition is usually 70% by weight of Portland Cement and 30% by weight of silicate coated expanded pearlite by adding 0.2% by weight of foaming agent and 5% by weight of polymer modifier and adding water so that the water / cement ratio is 0.40. After mixing in the plate-shaped mold was vibrated and molded and then naturally cured at room temperature.
표 2. 는 상기한 실시예 들에 의해 제조된 제품들의 물성을 측정한 결과를 나타낸 것이다.Table 2. shows the results of measuring the physical properties of the products produced by the above examples.
표 2. 흡음 판재의 물성Table 2. Properties of Sound Absorbing Plate
※KS F 2805에 의해 측정된 평균 흡음율※ Average sound absorption measured by KS F 2805
본 발명은 기존의 경량 흡음 콘크리트와 비교하여 고온 고압의 양생과정을 생략하고 비교적 가격이 저렴한 재료를 사용하여 제조하는 방법으로 제품의 부가가치를 향상시킴으로서 경제성을 높이는데 그 효과가 있다. 한편 본 제품은 기존의 방음 판넬이 가지고 있는 여러 가지 단점을 극복하여 시공의 간편성, 수명연장(내후성, 동결융해성) 등을 기할 수 있게 되었다.The present invention has the effect of improving the economics by improving the added value of the product by the method of manufacturing using a relatively inexpensive material, omitting the curing process of high temperature and high pressure compared to the existing lightweight sound-absorbing concrete. On the other hand, this product can overcome various shortcomings of the existing soundproofing panel, thus making it easy to install and extending its life (weather resistance, freezing and thawing).
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100704653B1 (en) * | 2005-12-21 | 2007-04-06 | 동아에스텍 주식회사 | Sound absorbing materials using perlite and inorganic binders and their manufacturing method. |
| KR100727382B1 (en) * | 2006-02-20 | 2007-06-12 | 한국생산기술연구원 | Cement composition for reducing floor impact sound |
| KR100778661B1 (en) * | 2005-11-28 | 2007-11-23 | 최린 | Method and construction of floor insulation sound insulation material of building structure using waste fiber |
| KR100799760B1 (en) * | 2006-09-22 | 2008-02-01 | 고광식 | Interior and exterior materials and manufacturing method using waste gypsum |
| KR100915018B1 (en) * | 2007-06-01 | 2009-09-02 | (주) 에스와이씨 | Preparation of nano pore control type Alc panel |
| KR100932728B1 (en) * | 2008-02-26 | 2009-12-21 | 상록환경 주식회사 | Manufacturing method of pop stone brick for building materials |
| CN103304196A (en) * | 2013-07-03 | 2013-09-18 | 内蒙古大学 | Preparation method of prefabricated cement block taking waste plant fiber powder as filler |
| CN104058654A (en) * | 2014-05-30 | 2014-09-24 | 蚌埠华东石膏有限公司 | Expanded vermiculite particle concrete and preparation method thereof |
| WO2018182119A1 (en) * | 2017-03-29 | 2018-10-04 | 주식회사 하은산업 | Lightweight concrete panel for heat and sound insulation of building floors and method for manufacturing same |
| KR20190011861A (en) * | 2017-07-25 | 2019-02-08 | 주식회사 하우이씨엠 | A method of manufacturing a board using bottom ash, and a board manufactured thereby |
| KR101964007B1 (en) * | 2018-08-02 | 2019-03-29 | 노재호 | Ultra high damping lightweight concrete composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100778661B1 (en) * | 2005-11-28 | 2007-11-23 | 최린 | Method and construction of floor insulation sound insulation material of building structure using waste fiber |
| KR100704653B1 (en) * | 2005-12-21 | 2007-04-06 | 동아에스텍 주식회사 | Sound absorbing materials using perlite and inorganic binders and their manufacturing method. |
| KR100727382B1 (en) * | 2006-02-20 | 2007-06-12 | 한국생산기술연구원 | Cement composition for reducing floor impact sound |
| KR100799760B1 (en) * | 2006-09-22 | 2008-02-01 | 고광식 | Interior and exterior materials and manufacturing method using waste gypsum |
| KR100915018B1 (en) * | 2007-06-01 | 2009-09-02 | (주) 에스와이씨 | Preparation of nano pore control type Alc panel |
| KR100932728B1 (en) * | 2008-02-26 | 2009-12-21 | 상록환경 주식회사 | Manufacturing method of pop stone brick for building materials |
| CN103304196A (en) * | 2013-07-03 | 2013-09-18 | 内蒙古大学 | Preparation method of prefabricated cement block taking waste plant fiber powder as filler |
| CN104058654A (en) * | 2014-05-30 | 2014-09-24 | 蚌埠华东石膏有限公司 | Expanded vermiculite particle concrete and preparation method thereof |
| WO2018182119A1 (en) * | 2017-03-29 | 2018-10-04 | 주식회사 하은산업 | Lightweight concrete panel for heat and sound insulation of building floors and method for manufacturing same |
| KR20190011861A (en) * | 2017-07-25 | 2019-02-08 | 주식회사 하우이씨엠 | A method of manufacturing a board using bottom ash, and a board manufactured thereby |
| KR101964007B1 (en) * | 2018-08-02 | 2019-03-29 | 노재호 | Ultra high damping lightweight concrete composition |
| CN118221402A (en) * | 2024-03-01 | 2024-06-21 | 华润水泥技术研发有限公司 | Cement-based sound absorbing board and preparation method and application thereof |
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