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KR0135578B1 - Method of manufacturing sound-absorbing concrete - Google Patents

Method of manufacturing sound-absorbing concrete

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Publication number
KR0135578B1
KR0135578B1 KR1019940013581A KR19940013581A KR0135578B1 KR 0135578 B1 KR0135578 B1 KR 0135578B1 KR 1019940013581 A KR1019940013581 A KR 1019940013581A KR 19940013581 A KR19940013581 A KR 19940013581A KR 0135578 B1 KR0135578 B1 KR 0135578B1
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KR
South Korea
Prior art keywords
sound
concrete
cement
absorbing material
sound absorbing
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Expired - Fee Related
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KR1019940013581A
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Korean (ko)
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KR960000800A (en
Inventor
이승한
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이승한
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Priority to KR1019940013581A priority Critical patent/KR0135578B1/en
Publication of KR960000800A publication Critical patent/KR960000800A/en
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Publication of KR0135578B1 publication Critical patent/KR0135578B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • 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
    • C04B20/0016—Granular materials, e.g. microballoons
    • C04B20/002—Hollow or porous granular materials
    • C04B20/004—Hollow or porous granular materials inorganic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/26—Producing shaped prefabricated articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor ; specially for manufacturing articles starting from a ceramic slip; Moulds therefor
    • B28B1/265—Producing shaped prefabricated articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor ; specially for manufacturing articles starting from a ceramic slip; Moulds therefor pressure being applied on the slip in the filled mould or on the moulded article in the mould, e.g. pneumatically, by compressing slip in a closed mould
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Porous Artificial Stone Or Porous Ceramic Products (AREA)
  • Building Environments (AREA)

Abstract

본 발명은 콘크리트 흡음재의 제조방법에 관한 것으로, 각종 건축구조물의 방음이나 도로, 철도변의 소음차단용 콘크리트 판재의 방음 및 차음효과를 높이기 위하여 삼차원적 미세공이 발달되어 있는 천연다공성골재(규조토, 제올라이트, Vermuculite, 화산석)나 인공골재 또는 고분자재를 사용하여 흡음특성을 갖는 연속기포 콘크리트를 제조하는 것을 목적으로 하였다.The present invention relates to a method for manufacturing a concrete sound absorbing material, natural porous aggregate (diatomaceous earth, zeolite, which is developed three-dimensional micropores in order to increase the sound insulation and sound insulation effect of the soundproofing of various building structures, or the noise prevention concrete plate of the road, railway Vermuculite (volcanic stone), artificial aggregates or polymer materials were used to produce continuous foamed concrete with sound absorption characteristics.

즉, 연속다공성 골재(천연, 인공, 고분자)와 시멘트를 적량 배합하고 이에 발포제와 물을 혼련시켜 기포를 발생시킨 다음 고온고압 양생을 실시하여 연속기포를 구성함을 특징으로 하는 콘크리트 흡음재의 제조방법에 관한 것이다.That is, a method for producing a concrete sound absorbing material, characterized in that the continuous porous aggregate (natural, artificial, polymer) and cement are appropriately blended, and the foaming agent and water are kneaded to generate bubbles, followed by high temperature and high pressure curing to form continuous bubbles. It is about.

Description

흡음콘크리트의 제조방법Method of manufacturing sound-absorbing concrete

제1도는 본 발명의 목적인 연속기공을 형성하는 제조방법 예시단면도.1 is a cross-sectional view illustrating a manufacturing method for forming continuous pores which is an object of the present invention.

제2도는 본 발명의 제법에 따라 연속기포가 형성된 흡음콘크린트의 단면예시도.2 is a cross-sectional view of a sound-absorbing concrete in which continuous bubbles are formed according to the manufacturing method of the present invention.

제3도는 종래의 경량기포콘크리트판에서 볼 수 있는 독립 기포모식도이다.3 is an independent bubble schematic diagram seen in the conventional lightweight foam concrete plate.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 다공성 골재 2 : 연속기공1: porous aggregate 2: continuous pore

3 : 시멘트풀 4 : 독립기공3: cement paste 4: independent pores

본 발명은 흡음콘크리트의 제조방법에 관한 것으로, 보다 구체적인 것은 시멘트에 미세공이 발달되어 있는 다공성 골재를 혼합하고 기포제를 투입하여 기포를 발생시킨후 이를 거푸집에 투입하여 고온고압하에서 장시간 양생하므로서 시멘트콘크리트 전체에 다량의 연속된 기공이 형성되어 초경량이면서 흡음성이 탁월한 흡음콘크리트가 제조되게 한 것이다.The present invention relates to a method for producing sound-absorbing concrete, and more specifically, to mixing a porous aggregate having fine pores in cement and adding a foaming agent to generate a bubble, and then to put it in a formwork to cure for a long time under high temperature and high pressure. A large amount of continuous pores are formed in the ultra-lightweight and sound-absorbing concrete with excellent sound absorption.

종래의 흡음재로 유리섬유(glass wool), 암면(岩綿) 및 유기섬유 등이 있고, 이중에서 유리섬유는 경제적이고 흡음특성이 뛰어난 이점이 있으나 인체에 유해하여 사용을 제한하고 있는 실정이라 인체에 무해하고 흡음성이 뛰어난 흡음재의 개발이 절실한 실정이다.Conventional sound-absorbing materials include glass wool, rock wool and organic fibers, among which glass fiber has the advantages of economical and sound-absorbing properties, but it is harmful to the human body and is restricted in use. The development of sound-absorbing materials harmless and excellent sound absorption is urgently needed.

따라서 종래에는 단열재를 흡음재로 전용하는 경우가 있는데 이것은 적절한 흡음재가 개발되어 있지 않기 때문이다.Therefore, conventionally, a heat insulating material may be diverted as a sound absorbing material because an appropriate sound absorbing material has not been developed.

한편, 단열재로 사용되는 ALC(Autoclave Lightweigh Concrete, 경량기포콘크리트)판은 시멘트, 생석회, 규산질원료, 발포제 및 혼화제를 주원료로 하고 있으며 물과 혼합하여 슬러리 상태로 만든 후 고온고압양생을 실시하여 콘크리트속에 기포를 형성시키는 방법을 실시하고 있다.On the other hand, ALC (Autoclave Lightweigh Concrete) plates used as thermal insulation materials are composed of cement, quicklime, siliceous raw materials, foaming agents and admixtures as the main raw materials, mixed with water to make slurry and high temperature and high pressure curing in concrete. The method of forming a bubble is implemented.

그러나 이것은 콘크리트내에 독립기포에 의한 기공이 형성되어 각 기공이 서로 통하지 못하는 까닭에 경량화와 우수한 단열효과를 가져오고 있지만 흡음효과는 기대할 수 없는 실정이다.However, this is due to the formation of pores by independent bubbles in the concrete, each of the pores do not pass through each other, resulting in light weight and excellent insulation effect, but the sound absorption effect is not expected.

본 발명은 이러한 문제점을 해결하기 위하여 시멘트에 다공성골재(괴상 석탄재, 슬래그 쇄사, 천연, 인공, 고분자)를 혼합하고 기포제를 혼합하여 기포시킨 후 일정용적의 형틀내에 투입하여 고온고압으로 양생시킴에 따라 성형되는 콘크리트내에 서로 연통된 통기성기공이 대량으로 형성되어 기공안으로 돌어온 음이 굴절, 반사, 소음되는 흡음효과를 발휘하게 한 것이 특징이다.In order to solve this problem, the porous aggregate (mass coal, slag chain, natural, artificial, polymer) is mixed with cement and foamed by mixing the foaming agent and then cured at a high temperature and high pressure by putting it in a mold of a certain volume. A large amount of breathable pores communicated with each other in the concrete to be formed is characterized by exhibiting the sound-absorbing effect that the sound returned to the pores are refracted, reflected, and noise.

이는 다공질의 골재와 혼합된 시멘트 혼련물에 기포를 형성시키고 Autoclave 양생을 실시하므로서 천연골재의 다공질 구조와 기포제에 의하여 만들어진 미세기공이 서로 연통되어 조기 강도증진을 도모하면서 구조적으로 안정된 토베르모라이트(Tobermorite) 결정을 만들면서 연속기공을 형성하기 때문이며 그 형태는 제2도에 나타낸 판과 같은 형태로 나타나게 된다.It forms bubbles in the cement mixture mixed with the porous aggregate and performs autoclave curing, so that the porous structure of natural aggregate and the micropores made by the foaming agent communicate with each other to promote early strength and structurally stable tobermorite ( Tobermorite) is because it forms continuous pores while making crystals, and the shape appears as the plate shown in FIG.

따라서 이를 흡음재로 사용하게 되면 음(소리)이 연속기공에 들어와서 이를 통과하는 동안에 몇번이고 반사, 굴절함으로써 감쇄되고 연속기공 내의 토베르모라이트(Tobermorite) 결정과 활성적인 3차원적 조직을 통해 흡음효과의 극대화를 가져오게 된다.Therefore, when it is used as a sound absorbing material, sound (sound) enters the continuous pores and is attenuated by reflection and refraction several times while passing through them. The effect is maximized.

또한, 본 발명의 흡음재는 콘크리트 제품으로 경량이면서 내후성과 내습성 등의 내구성이 뛰어나 옥외 건축구조물에도 사용할 수 있고 인체에도 무해하여 실내에서도 사용이 가능한 흡음재가 되는 것이다.In addition, the sound absorbing material of the present invention is a lightweight concrete product with excellent durability, such as weather resistance and moisture resistance, can be used in outdoor building structures, harmless to the human body to become a sound absorbing material that can be used indoors.

[실시예1]Example 1

소정의 크기(약 5mm이하)로 파쇄한 괴상석탄재를 시멘트와 3 : 1의 비율로 혼합하고 시멘트중량의 1%중량비 이하의 기포제를 넣어 물과 혼합하면서 발포기로 발포시킨 다음 이를 흡음판 크기의 거푸집에 타설하고 180℃의 고온과 10kg/㎠의 고압으로 15시간 정도 양생하여 통기성기공을 가진 제2도와 같은 흡음판을 얻었다.The lumped coal material crushed to a predetermined size (about 5mm or less) is mixed with cement at a ratio of 3: 1, and foamed with a foamer while mixing with water with a foaming agent of 1% by weight or less of cement weight. It was poured and cured at a high temperature of 180 ° C. and a high pressure of 10 kg / cm 2 for about 15 hours to obtain a sound absorbing plate as shown in FIG. 2 having breathable pores.

[실싱예2][Example 2]

슬래그쇄사를 5mm 이하의 크기로 파쇄하여 시멘트와 3 : 1의 비율로 배합하고 시멘트중량의 1%에 해당하는 알루미늄 분말과 물을 혼련시켜 기포를 발생시킨후 흡음판 크기의 거푸집에 타설하고 온도 180℃ 압력 10kg/㎠의 고온고압조(Autoclave)내에서 20시간 정도 양생을 실시하여 통기성기공을 갖인 제2도와 같은 흡음판을 얻었다.The slag yarn is crushed to the size of 5mm or less, mixed with cement at a ratio of 3: 1, and the aluminum powder corresponding to 1% of the cement weight and water are kneaded to generate air bubbles, and then placed in the formwork of the sound absorbing plate and the temperature is 180 ℃. Curing was carried out for about 20 hours in a high temperature autoclave at a pressure of 10 kg / cm 2 to obtain a sound absorbing plate as shown in FIG. 2 having breathable pores.

[실시예3]Example 3

규조토를 5mm 이하의 크기로 파쇄하여 시멘트와 2 : 1의 비율로 혼합하고 시멘트 중량의 1% 이하의 기포제를 넣고 물과 혼련하면서 기포기로 기포시켜 이것을 흡음판 크기의 거푸집에 넣고 180℃의 온도로 10kg/㎠의 압력하에 15시간 정도 양생하여 통기성기공을 가진 제2도와 같은 흡음판을 얻었다.Diatomaceous earth is crushed to the size of 5mm or less, mixed with cement at a ratio of 2: 1, and a foaming agent of 1% or less of the cement weight is added. Cured under pressure of / cm 2 for about 15 hours to obtain a sound absorbing plate as shown in FIG. 2 with breathable pores.

이와 같이 만들어진 흡음콘크리트는 다공성 골재에 의해서 소정의 강도를 확보하고, 고온고압 양생과정에서 시멘트풀 속에 형성된 기공과 다공성 골재속의 기공이 이어지는 연속기공이 형성되어 활성적인 3차원적 통기공을 형성하게 되므로 이를 흡음재로 사용할시 음의 반사, 굴절이 효과적으로 이루어져 월등한 흡음효과를 거둘수 있고 경량화된 흡음재를 얻게 되므로 산업이용도가 높은 효과를 얻는 것이다.The sound-absorbing concrete made as described above secures a predetermined strength by the porous aggregate, and in the high temperature and high pressure curing process, continuous pores are formed by connecting the pores formed in the cement paste and the pores in the porous aggregate, thereby forming an active three-dimensional ventilation hole. When it is used as a sound absorbing material, the sound reflection and refraction can be effectively performed, resulting in superior sound absorbing effect, and a light weighted sound absorbing material is obtained.

Claims (1)

다공성골재(괴상 석탄재, 슬래그쇄사, 천연 또는 인공고분자골재 포함)와 시멘트를 2 : 1 내지 3 : 1의 비율로 배합하고 이에 기포제를 투입하여 기포를 형성시킨 다음 형틀에 넣어 180℃의 고온과 10kg/㎠의 고압하에서 10-20시간 양생을 실시하여 제조되는 흡음콘크리트의 제조방법.Porous aggregates (including bulk coal, slag chains, natural or artificial polymer aggregates) and cement are mixed in a ratio of 2: 1 to 3: 1, and foaming agents are added to them to form bubbles, which are then put into a mold at a high temperature of 180 ° C and 10kg. Method for producing a sound-absorbing concrete produced by curing 10-20 hours under a high pressure of / cm 2.
KR1019940013581A 1994-06-14 1994-06-14 Method of manufacturing sound-absorbing concrete Expired - Fee Related KR0135578B1 (en)

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KR0135578B1 true KR0135578B1 (en) 1998-04-22

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WO2009049319A3 (en) * 2007-10-12 2009-05-28 Northeast Solite Corp Method for reducing curling and/or warping in poured concrete and structure made thereby
KR102535650B1 (en) 2022-09-19 2023-05-26 주식회사 케이비씨 Noise reduction type concrete panel

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KR20030016579A (en) * 2001-08-21 2003-03-03 한국에너지기술연구원 Moisture absorbing construction materials mixed natural zeolite and method for producing the same
KR100522850B1 (en) * 2002-10-31 2005-11-21 김문훈 Method for manufacturing boundary concrete curbs utilizing scoria
KR102107934B1 (en) * 2019-06-20 2020-05-07 이준배 Sound absorption thermal insulation material and floor noise prevention floor structure using it

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Publication number Priority date Publication date Assignee Title
KR100814964B1 (en) * 2007-02-22 2008-03-19 주식회사 포스코건설 Lightweight foamed concrete containing low ash and its manufacturing method
WO2009049319A3 (en) * 2007-10-12 2009-05-28 Northeast Solite Corp Method for reducing curling and/or warping in poured concrete and structure made thereby
KR102535650B1 (en) 2022-09-19 2023-05-26 주식회사 케이비씨 Noise reduction type concrete panel

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