KR100438139B1 - Manufacturing Methods of Noise Reducing Porous Sound Absorption Concrete Block Using Waste Concrete By-product, Lightweight Aggregate and Artificial Zeolite - Google Patents

Manufacturing Methods of Noise Reducing Porous Sound Absorption Concrete Block Using Waste Concrete By-product, Lightweight Aggregate and Artificial Zeolite Download PDF

Info

Publication number
KR100438139B1
KR100438139B1 KR10-2003-0080432A KR20030080432A KR100438139B1 KR 100438139 B1 KR100438139 B1 KR 100438139B1 KR 20030080432 A KR20030080432 A KR 20030080432A KR 100438139 B1 KR100438139 B1 KR 100438139B1
Authority
KR
South Korea
Prior art keywords
noise
sound
absorbing
porous sound
concrete
Prior art date
Application number
KR10-2003-0080432A
Other languages
Korean (ko)
Other versions
KR20030095382A (en
Inventor
박승범
Original Assignee
재단법인 충남대학교 산학연교육연구재단
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 재단법인 충남대학교 산학연교육연구재단 filed Critical 재단법인 충남대학교 산학연교육연구재단
Priority to KR10-2003-0080432A priority Critical patent/KR100438139B1/en
Publication of KR20030095382A publication Critical patent/KR20030095382A/en
Application granted granted Critical
Publication of KR100438139B1 publication Critical patent/KR100438139B1/en

Links

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
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/16—Waste materials; Refuse from building or ceramic industry
    • C04B18/167—Recycled materials, i.e. waste materials reused in the production of the same materials
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C1/00—Building elements of block or other shape for the construction of parts of buildings
    • E04C1/40—Building elements of block or other shape for the construction of parts of buildings built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts
    • 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

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)

Abstract

본 발명은 도시화 및 교통량의 증가로 인해 발생하는 소음 및 유해가스를 감소시키며, 건설부산물의 Recycling을 통한 지구환경 부하를 저감시키는 폐콘크리트 부산물과 경량골재 및 인공 Zeolite를 이용한 소음저감형 포러스 흡음콘크리트 블록의 제조방법에 관한 것이다.The present invention reduces noise and harmful gases generated by urbanization and increased traffic volume, and reduces noise-porous sound-absorbing concrete blocks using waste concrete by-products and lightweight aggregates and artificial zeolites to reduce global environmental load through recycling of construction byproducts. It relates to a manufacturing method of.

본 발명의 제조방법은 보통 포틀랜드시멘트, 조강시멘트를 사용하고 골재는 입도범위가 2.0∼5mm, 5∼13mm, 13∼20mm의 부순돌, 폐콘크리트 재생골재 또는 경량골재를 사용한다. 소음저감형 포러스 흡음콘크리트 블록의 인성확보 및 내구성 증진을 위하여 내알칼리성 유리섬유(Glass fiber), 폴리플로필렌섬유 (Polypropylene fiber)를 사용하고, 압축강도, 부착강도, 내충격성 및 내화학성 등의 증진을 위하여 아크릴계 수지를 혼입하여 사용한다. 또한, NOx(질소산화물)등의 유해가스를 흡수하여 저감시킬 수 있도록 입상형 인공 Zeolite를 사용하며, 시멘트 분산작용에 의해 콘크리트의 워커빌리티를 개선시키는 혼화제로서 고성능 AE감수제를 사용하고 물-결합재비를 15∼30%로 하여 연속공극률이 15∼30%인 소음저감형 포러스 흡음콘크리트 블록을 제조한다. 블록의 성형에 있어서 수직입사 소음은 물론 경사입사 소음의 흡음률을 증대시키기 위하여 블록 상부에 마름모형 홈(20), 원형 홈(30), "ㄱ"자형 홈(50) 및 "1/4"원형 홈(60)을 형성시키는 것을 특징으로 한다.The production method of the present invention usually uses portland cement, steel cement and the aggregate is used in the particle size range of 2.0-5mm, 5-13mm, 13-20mm crushed stone, waste concrete recycled aggregate or lightweight aggregate. Alkali-resistant glass fiber and polypropylene fiber are used to secure the toughness and durability of the noise-reducing porous sound-absorbing concrete block, and to improve compressive strength, adhesion strength, impact resistance and chemical resistance. For this purpose, acrylic resin is mixed and used. In addition, granular artificial zeolite is used to absorb and reduce harmful gases such as NOx (nitrogen oxide), and high-performance AE water reducing agent is used as a admixture to improve the workability of concrete by cement dispersion. A noise reduction porous sound-absorbing concrete block having a continuous porosity of 15 to 30% is produced at 15 to 30%. In the shaping of the block, the rhombic groove 20, the circular groove 30, the "a" groove 50 and the "1/4" circle in the upper part of the block to increase the sound absorption rate of the vertical incidence noise as well as the inclined incidence noise. The groove 60 is formed.

상술한 바와 같이 본 발명은 소음저감형 포러스 흡음콘크리트 블록을 제조하는데 있어 폐콘크리트 부산물인 재생골재를 사용함으로서 자원의 재활용을 통한 천연자원의 고갈방지, 환경오염 방지 및 국가에너지 절약효과와 비중이 작은 경량골재를 사용함으로서 경량흡음블록의 제조가 가능하다. 또한, 기존의 흡음벽 재료로 사용되는 암면, 유리면과 같은 다공성 섬유재질의 재료들은 발암물질과 같은 유해물질을 발산하고 강우시 물을 흡수하여 흡음성능이 저하되는 단점 등을 가지고 있다. 따라서, 인체에 무해한 다공질 포러스콘크리트로 흡음블록을 제조하여 도로, 지하철, 철도, 공항 및 주거공간과 같은 지역에 적용함으로서 교통소음 및 생활소음의 저감과 인공 Zeolite의 흡착기능에 의한 유해가스 저감 등의 환경부하저감을 통하여 인류의 쾌적한 주거환경 조성에 기여할 것으로 판단된다.As described above, the present invention uses recycled aggregates, which are waste concrete by-products, in the production of noise-reducing porous sound-absorbing concrete blocks, to prevent the exhaustion of natural resources through the recycling of resources, to prevent environmental pollution, and to reduce the national energy saving effect and the specific gravity. By using light weight aggregates, it is possible to manufacture light weight sound absorbing blocks. In addition, porous fiber materials such as rock wool and glass wool, which are used as conventional sound absorbing wall materials, have disadvantages such as sound absorption performance is degraded by emitting harmful substances such as carcinogens and absorbing water during rainfall. Therefore, by making sound-absorbing blocks made of porous porous concrete, which is harmless to the human body, and applying them to areas such as roads, subways, railways, airports and residential spaces, it is possible to reduce traffic noise and living noise, and to reduce harmful gases by adsorption function of artificial zeolite. It is expected to contribute to the creation of a pleasant living environment through the reduction of environmental load.

Description

폐콘크리트 부산물과 경량골재 및 인공 Ｚｅｏｌｉｔｅ를 이용한 소음저감형 포러스 흡음콘크리트 블록의 제조방법{Manufacturing Methods of Noise Reducing Porous Sound Absorption Concrete Block Using Waste Concrete By-product, Lightweight Aggregate and Artificial Zeolite}Manufacturing Methods of Noise Reducing Porous Sound Absorption Concrete Block Using Waste Concrete By-product, Lightweight Aggregate and Artificial Zeolite

본 발명은 도로, 철도, 지하철, 공항 및 주거지역 등에 적용되는 흡음 블록에 관한 것으로 환경친화적인 다공질의 포러스콘크리트로 흡음블록을 제조함으로서 소음의 흡수 능력이 우수하고 무기질 재료인 포러스콘크리트로 흡음블록을 제조·적용함으로서 인체에 무해하며, 흡음블록 제조시 흡착기능이 있는 인공 Zeolite를 사용하여 차량 등에서 발생하는 NOx(질소산화물) 등과 같은 유해가스를 저감시켜 쾌적한 인류의 생활공간 형성에 기여한다. 또한 건설폐기물인 폐콘크리트 재생골재를 사용하여 자원의 재활용을 통한 환경보전 효과가 있으며, 비중이 작은 경량골재를 사용함으로서 경량의 흡음블록 제조가 가능하다. 고인성·고내구성의 블록제조를 위해 아크릴계 수지 및 보강용 섬유신소재를 사용하며, 블록의 성형시 블록 표면에 마름모형 홈(20), 원형 홈(30), "ㄱ"자형 홈(50) 및 "1/4"원형 홈(60) 등을 형성시켜 수직입사 소음의 흡음뿐만 아니라 경사입사 소음의 흡음률을 향상시키는 폐콘크리트 부산물과 경량골재 및 인공 Zeolite를 이용한 소음저감형 포러스 흡음콘크리트 블록의 제조방법에 관한 것이다.The present invention relates to a sound absorbing block applied to roads, railroads, subways, airports, and residential areas. The sound absorbing block is made of porous concrete, which is an inorganic material, having an excellent sound absorption ability by producing a sound absorbing block made of environmentally friendly porous concrete. It is harmless to human body by manufacturing and applying, and it uses artificial zeolite with adsorption function in manufacturing sound absorbing block to reduce harmful gas such as NOx (nitrogen oxide) generated in vehicles, contributing to the formation of pleasant living space. In addition, waste concrete recycled aggregates, which are construction wastes, have an environmental conservation effect through the recycling of resources, and light weight sound absorbing blocks can be manufactured by using lightweight aggregates having a small specific gravity. Acrylic resin and reinforcing fiber new material are used to make the block of high toughness and durability, and when the block is formed, rhombic groove 20, circular groove 30, “a” shaped groove 50 and Method for manufacturing noise-reduced porous sound-absorbing concrete blocks using waste concrete by-products and lightweight aggregates and artificial zeolites to form "1/4" circular grooves 60 and the like, as well as sound absorption of vertical incidence noise It is about.

최근 도시화·산업화로 인하여 차량이 급속하게 증가함에 따라 도시내부의 주요도로 및 고속도로에는 자동차의 소음과 배기가스의 증가로 인해 정신적, 물질적 피해가 증가되고 있는 실정이다. 따라서 이에 대한 해결책으로 흡음 및 방음시설의 확충이 절실히 요구되고 있는 실정이다. 흡음시설은 우수한 흡음성능, 안정성, 무해성 및 주변경관과의 조화 등이 요구되고 있으나, 기존의 흡음시설은 암면, 유리섬유 등의 다공성 섬유질의 흡음재료를 사용하고 있으며, 이러한 흡음재들은 흡음성능은 우수하나 발암물질과 같은 유해물질을 발산하여 인체에 유해하며 재료의 열화 및 강우시 물의 흡수에 의한 흡음성능 저하 등의 문제점을 지니고 있다. 또한 기존의 흡음시설은 대부분 철재로 이루어져 있고 형태 또한 일률적이어서 설치시 주변환경과의 조화가 떨어진다. 따라서 기존의 흡음벽의 우수한 흡음성능 및 구조적 기능을 만족시키면서 인체에 무해하고 주변경관과의 조화가 우수한 환경친화적인 흡음블록의 제조기술 개발이 절실한 실정이다.Recently, due to urbanization and industrialization, as vehicles increase rapidly, mental and physical damages are increasing on the main roads and highways in the city due to the increase of noise and emissions of automobiles. Therefore, there is an urgent need for expansion of sound absorbing and soundproofing facilities. Sound absorption facilities require excellent sound absorption performance, stability, harmlessness and harmony with the surrounding landscape. However, the existing sound absorption facilities use sound absorbing materials of porous fiber such as rock wool and glass fiber. Although it is excellent, it is harmful to the human body by emitting harmful substances such as carcinogens and has problems such as deterioration of material and sound absorption by water absorption during rainfall. In addition, the existing sound-absorbing facilities are mostly made of steel and uniform in shape, which makes them incompatible with the surrounding environment. Therefore, it is urgent to develop an eco-friendly sound absorbing block manufacturing technology that is harmless to the human body and has excellent harmony with the surrounding landscape while satisfying the excellent sound absorbing performance and structural function of the existing sound absorbing wall.

본 발명은 도로, 철도, 지하철, 공항 및 주거지역 등에 적용되는 흡음 블록을 환경친화적인 다공질의 포러스콘크리트로 흡음블록을 제조함으로서 블록의 내부에 형성된 다량의 연속공극 및 넓은 비표면적에 의해 차량 등에서 발생하는 소음에 대한 흡음성능이 우수하고, 블록 제조시 미세다공성의 구조로 이루어져 있어 흡착기능이 있는 인공 Zeolite를 사용하여 차량 등에서 발생하는 NOx(질소산화물) 등과 같은 유해가스를 저감시킬 수 있다. 또한, 건설폐기물인 폐콘크리트 재생골재를 사용하여 자원의 재활용을 통한 환경보전 효과와 비중이 작은 경량골재를 사용함으로서 경량의 흡음블록 제조가 가능하며, 고인성·고내구성의 블록제조를 위해 아크릴계 수지 및 보강용 섬유신소재를 사용한다.According to the present invention, a sound absorbing block applied to a road, a railroad, a subway, an airport, a residential area, etc. is made of environmentally friendly porous concrete to produce a sound absorbing block, which is generated in a vehicle by a large amount of continuous voids and a large specific surface area formed inside the block. It has excellent sound-absorbing performance against noise, and has a microporous structure when manufacturing blocks, so it is possible to reduce harmful gases such as NOx (nitrogen oxide) generated in vehicles by using artificial zeolite with adsorption function. In addition, it is possible to manufacture light-weight sound-absorbing blocks by using environmentally-preserved effects through recycling resources and using lightweight aggregates with a low specific gravity by using recycled concrete recycled aggregates, which are construction wastes, and acrylic resins for high toughness and high durability block manufacturing. And a new fiber material for reinforcement.

성형시 블록 상단부에 각종 모양의 홈을 형성시켜 수직입사 소음의 흡음 뿐만 아니라 경사입사 소음의 흡음률을 향상시키는 폐콘크리트 부산물과 경량골재 및 인공 Zeolite를 이용한 소음저감형 포러스 흡음콘크리트 블록의 제조를 목적으로 한 것이다.For the purpose of manufacturing noise-reduced porous sound-absorbing concrete blocks using waste concrete by-products and lightweight aggregates and artificial zeolites that improve the sound absorption of vertical incidence noise as well as the absorption of vertical incidence noise by forming grooves of various shapes at the upper end of the block. It is.

도 1은 폐콘크리트 부산물과 경량골재 및 인공 Zeolite를 이용한 소음저감형 포러스 흡음콘크리트 블록의 제조순서도1 is a manufacturing flowchart of the noise-reduced porous sound-absorbing concrete block using waste concrete by-products and light aggregate and artificial zeolite

도 2는 본 발명에 사용된 입상형 인공 ZeoliteFig. 2 is a granular artificial zeolite used in the present invention.

도 3은 본 발명에 사용된 경량골재3 is a lightweight aggregate used in the present invention

도 4는 본 발명에 의해 제조된 소음저감형 포러스 흡음콘크리트 블록의 잔향실법에 의한 평균흡음률 측정 전경Figure 4 is a foreground measurement of the average sound absorption by the reverberation chamber method of the noise-reducing porous sound-absorbing concrete block produced by the present invention

도 5는 본 발명에 의해 제조된 소음저감형 포러스 흡음콘크리트 블록 Type-A의 평면도5 is a plan view of the noise-reducing porous sound-absorbing concrete block Type-A produced by the present invention

도 6은 본 발명에 의해 제조된 소음저감형 포러스 흡음콘크리트 블록 Type-A의 내부단면 투시도Figure 6 is a cross-sectional perspective view of the noise-reducing porous sound-absorbing concrete block Type-A produced by the present invention

도 7은 본 발명에 의해 제조된 소음저감형 포러스 흡음콘크리트 블록 Type-A의 전경Figure 7 is a front view of the noise-reducing porous sound-absorbing concrete block Type-A produced by the present invention

도 8은 본 발명에 의해 제조된 소음저감형 포러스 흡음콘크리트 블록 Type-B의 평면도8 is a plan view of the noise-reducing porous sound-absorbing concrete block Type-B produced by the present invention

도 9는 본 발명에 의해 제조된 소음저감형 포러스 흡음콘크리트 블록 Type-B의 내부단면 투시도Figure 9 is a cross-sectional perspective view of the noise reduction porous sound-absorbing concrete block Type-B produced by the present invention

도 10은 본 발명에 의해 제조된 소음저감형 포러스 흡음콘크리트 블록 Type-B의 전경10 is a front view of the noise-reducing porous sound-absorbing concrete block Type-B produced by the present invention

[도면의 주요부분에 대한 부호의 설명][Explanation of symbols on the main parts of the drawings]

10 : 소음저감형 포러스 흡음콘크리트 블록의 구체, 20 : 마름모형 홈10: sphere of noise-reducing porous sound-absorbing concrete block, 20: rhombus groove

30 : 원형 홈, 40 : 반구형 홈, 50 : "ㄱ"자형 홈 60 : "1/4"원형 홈30: circular groove, 40: hemispherical groove, 50: "a" groove 60: "1/4" circular groove

본 발명의 목적을 달성하기 위하여 다음과 같은 재료를 사용한다.In order to achieve the object of the present invention, the following materials are used.

본 발명에 사용된 시멘트는 비중 3.14∼3.22, 분말도 3,000∼3,500cm2/g 이고 화학적 주성분은 CaO 60.0∼65.0%, SiO220.0∼24.0%, Al2O33.5∼5.5%인 보통포틀랜드시멘트나 조강시멘트를 사용하며, 골재는 입도범위 2.0∼5.0mm,5.0∼13.0mm, 13.0∼20.0mm의 부순돌 또는 KS 규격의 폐콘크리트 재생골재를 사용하며 경량흡음블록의 제조시는 경량골재를 사용한다. 부순돌은 비중 2.60∼2.75, 단위용적중량은 1,450∼1,600kg/m3의 것을 사용하고, 폐콘크리트 재생골재는 비중 2.42∼2.55, 단위용적중량 1,300∼1,400kg/m3인 KS 규격을 만족시키는 것을 사용하며, 경량골재는 비중 0.8∼1.8, 흡수율 1.2∼1.8%, 단위용적중량 700∼880kg/m3의 것을 사용한다. 소음저감형 흡음콘크리트 블록의 강도, 내충격성, 내화학저항성 등의 증진을 위하여 비중 1.05∼1.06, 점도 50∼70mPa·s의 아크릴계 수지를 사용하며, 고인성·고내구성의 블록제조를 위하여 비중 0.90∼0.92, 인장강도 2,500∼2,700kgf/cm2, 탄성계수 3.5∼3.8×104kgf/cm2, 길이 3∼40mm의 폴리프로필렌섬유를 사용하거나, 비중 2.50∼2.55, 인장강도 25,000∼26,000kgf/cm2, 길이 3∼40mm의 내알칼리성 유리섬유를 혼입한다. 또한, 내부의 매트릭스 구조가 미세다공성의 구조로 이루어져 있어 이온교환에 의한 흡착기능으로 차량 및 공장 등에서 발생하는 NOx(질소산화물) 등의 유해가스를 흡착·저감시킬 수 있는 입상형 인공 Zeolite로서 2.0∼5.0mm, 5.0∼13.0mm, 13.0∼20.0mm인 것을 골재 대체로 사용한다.The cement used in the present invention has a specific gravity of 3.14 to 3.22, a powder of 3,000 to 3,500 cm 2 / g, and the chemical main components are CaO 60.0 to 65.0%, SiO 2 20.0 to 24.0%, and Al 2 O 3 3.5 to 5.5%. B. The steel cement is used, and the aggregate is made of crushed stone with particle size range of 2.0 ~ 5.0mm, 5.0 ~ 13.0mm, 13.0 ~ 20.0mm or waste concrete recycled aggregate of KS standard. do. Crushed stone uses specific gravity 2.60 ~ 2.75, unit volume weight 1,450 ~ 1,600kg / m 3 , and waste concrete recycled aggregate meets KS specification with specific gravity 2.42 ~ 2.55, unit volume weight 1,300 ~ 1,400kg / m 3 and using the light weight aggregate was used as specific gravity of from 0.8 to 1.8, water absorption 1.2~1.8%, unit weight 700~880kg / m 3. In order to improve the strength, impact resistance and chemical resistance of the noise-reducing sound-absorbing concrete block, acrylic resin with specific gravity of 1.05 to 1.06 and viscosity of 50 to 70 mPa · s is used, and specific gravity 0.90 is used for manufacturing high toughness and high durability block. ~ 0.92, tensile strength 2,500 ~ 2,700kgf / cm 2 , elastic modulus 3.5 ~ 3.8 × 10 4 kgf / cm 2 , polypropylene fiber with length 3-40mm, or specific gravity 2.50 ~ 2.55, tensile strength 25,000 ~ 26,000kgf / Alkali-resistant glass fiber of cm <2> and 3-40 mm in length is mixed. In addition, the internal matrix structure is made of microporous structure, and is a granular artificial zeolite that can adsorb and reduce harmful gases such as NOx (nitrogen oxide) generated in vehicles and factories by adsorption function by ion exchange. 5.0 mm, 5.0 to 13.0 mm, and 13.0 to 20.0 mm are used as aggregate substitutes.

입상형 인공 Zeolite의 화학적 조성 및 물리적 특징Chemical Composition and Physical Characteristics of Granular Artificial Zeolite 화학적 조성Chemical composition 물리적 특징Physical characteristics SiO2 SiO 2 Na2ONa 2 O Al2O3 Al 2 O 3 K2OK 2 O CaOCaO FeFe 비 중importance 실적률Performance rate 48.348.3 7.67.6 21.621.6 1.11.1 5.35.3 3.33.3 1.70∼1.751.70-1.75 55∼60%55 to 60%

본 발명에서 사용된 배합은 다공질의 포러스콘크리트를 이용한 소음저감형 흡음콘크리트 블록의 성능에 가장 큰 영향을 미치는 공극률과 내부 비표면적을 극대화 시키기 위하여 물-결합재비를 15∼30%로 하고, 이에 아크릴계 수지를 시멘트 중량비로 5∼20% 혼입하고, 섬유신소재인 폴리프로필렌섬유, 유리섬유를 용적비로 각각 1.0∼5.0 Vol.% 혼입하며, 입상형 인공 Zeolite는 골재 대체비로 0∼100 Vol.%로 혼입한다. 또한, 시멘트 페이스트의 일정한 워커빌리티 확보 및 강도증진을 위해 고성능 AE감수제를 시멘트 중량비로 0.5∼1.2% 혼입하여 소음저감형 포러스 흡음콘크리트 블록의 연속공극률을 15∼30% 형성시킨다.The blending used in the present invention is 15 to 30% water-bonding material ratio in order to maximize the porosity and the internal specific surface area which has the greatest effect on the performance of the noise-reduction sound-absorbing concrete block using porous porous concrete. Resin is mixed by 5 to 20% by weight of cement, and polypropylene fiber and glass fiber, which are new fiber materials, are mixed by 1.0 to 5.0 Vol.% By volume ratio, and granular artificial zeolite is mixed by 0 to 100 vol.% As aggregate replacement ratio. do. In addition, 0.5 ~ 1.2% of a high performance AE reducing agent is mixed in a cement weight ratio to form a continuous porosity of the noise-reducing porous sound-absorbing concrete block to secure constant workability and strength of the cement paste.

혼합방법은 섬유의 균등분산을 위하여 Omni Mixer를 사용하여 물, 시멘트, 고성능 AE 감수제를 선투입하여 270초간 믹싱을 한 후 이에 골재, 섬유, 아크릴계 수지, 입상형 인공 Zeolite를 투입하여 90초간 믹싱을 하는 분할투입방식을 사용하여 소음저감형 포러스 흡음콘크리트 블록을 제조하고, 2일간 기건양생을 실시한 후 탈형하여 소정의 재령까지 23℃±2℃에서 수중양생을 실시하였다.Mixing method is to mix the fiber, acrylic resin and granular artificial zeolite for 90 seconds by mixing 270 seconds by pre-injecting water, cement and high-performance AE water reducing agent using Omni Mixer to uniformly disperse the fibers. The noise reduction type porous sound-absorbing concrete block was manufactured using the divided injection method, and after curing for 2 days, the mold was demolded and subjected to underwater curing at 23 ° C. ± 2 ° C. until a predetermined age.

본 발명에 의해 제조된 소음저감형 포러스 흡음콘크리트 블록의 구성을 이하에 상세히 설명한다.The configuration of the noise reduction porous sound-absorbing concrete block produced by the present invention will be described in detail below.

도5, 도6, 도7은 본 발명에 따른 소음저감형 포러스 흡음콘크리트 블록 Type-A의 평면도, 내부단면 투시도, 전경을 나타낸 것이다. 도5와 도6에 도시한 것과 같이 블록의 상부에 마름모형 홈(20) 및 원형 홈(30)을 블록두께의 30∼70% 높이까지 다수 형성시켜 블록의 비표면적을 증대시켜 수직입사 소음 및 경사입사 소음의 흡음률을 극대화 시키는 것은 물론, 블록을 도로, 터널, 철도 및 주거생활 공간에 설치시 주변경관과의 조화가 뛰어나며, 마름모형 홈(20) 및 원형 홈(30)의 내부 바닥에 반구형 홈(40)을 형성시켜 입사되는 소음의 체류 시간을 증대시켜 흡음률을 향상시키는 것을 특징으로 한다.5, 6, and 7 are a plan view, an internal sectional perspective view, and a foreground of a noise reduction porous sound-absorbing concrete block Type-A according to the present invention. 5 and 6, a plurality of rhombic grooves 20 and circular grooves 30 are formed in the upper portion of the block up to 30 to 70% of the block thickness to increase the specific surface area of the block to increase vertical incidence noise and In addition to maximizing the sound absorption rate of inclined incidence noise, the block is installed in roads, tunnels, railways, and residential living spaces, and has excellent harmonization with the surrounding landscape, and has a hemispherical shape on the inner bottom of the rhombic groove 20 and the circular groove 30 Forming the groove 40 is characterized by improving the sound absorption rate by increasing the residence time of the incident noise.

도8, 도9, 도10은 본 발명에 따른 소음저감형 포러스 흡음콘크리트 블록 Type-B의 평면도, 내부단면 투시도 및 전경을 나타낸 것이다. 도8과 도9에 도시한 것과 같이 블록의 상부에 "ㄱ"자형 홈(50) 4개, "1/4"원형 홈(60) 4개 및 마름모형 홈(20)을 블록 두께의 30∼70% 높이까지 형성시켜 블록의 비표면적 증대로 인하여 입사되는 소음의 저항면적률을 극대화 시켜 흡음성능이 우수하며, 흡음콘크리트 블록의 현장적용시 미관이 수려하여 주변경관과의 조화가 우수한 것을 특징으로 한다.8, 9, and 10 illustrate a plan view, an internal cross-sectional perspective view, and a foreground of a noise reduction porous sound-absorbing concrete block Type-B according to the present invention. As shown in Figs. 8 and 9, four "A" shaped grooves 50, four "1/4" circular grooves 60, and a rhombic groove 20 are formed in the upper portion of the block from 30 to 30 mm thick. It is formed up to 70% height to maximize the resistive area ratio of incident noise due to the increase of specific surface area of the block, so it has excellent sound absorption performance, and it is excellent in harmony with the surrounding landscape due to its beautiful appearance when applying the sound-absorbing concrete block. do.

본 발명에서는 소음저감형 흡음콘크리트 블록의 품질특성을 파악하기 위하여 다음과 같은 실험을 수행하였다. 연속공극률은 일본 에코콘크리트위원회의 시험방법(안)중 용적법에 준하여 측정하였으며, 압축강도 시험은 ψ10×20cm의 원주형 공시체를 제작하여 KS F 2405『콘크리트 압축강도 시험 방법』에 준하여 실시하였다. 휨강도 시험은 15×15×55cm의 보(Beam) 공시체를 제작한 후 KS F 2408『콘크리트 휨강도 시험 방법』에 준하여 휨강도를 평가하였고, 화학저항성은 ψ10×20cm의 원주형 공시체를 제작하여 재령 6개월까지 1% 황산(H2SO4) 용액에 침지시켜 중량변화율을 측정하였으며, 내충격성 시험은 본 발명에 의해 제조된 소음저감형 포러스 흡음콘크리트 블록을 80cm의 높이에서 3kg의 강구를 자유낙하 시켜 초기균열 및 파괴균열시의 낙하회수를 측정하여 충격에 대한 저항성을 측정하였다.In the present invention, the following experiment was carried out to grasp the quality characteristics of the noise reduction sound-absorbing concrete block. The continuous porosity was measured according to the volumetric method of the test method of the ECO Concrete Committee of Japan, and the compressive strength test was carried out in accordance with KS F 2405 『Concrete compressive strength test method』 by making a cylindrical specimen of ψ10 × 20cm. The flexural strength test was made for beam specimens of 15 × 15 × 55cm, and the flexural strengths were evaluated according to KS F 2408 『Concrete Flexural Strength Test Method』, and the chemical resistance was produced by the cylindrical specimen of ψ10 × 20cm. The weight change rate was measured by immersing in a 1% sulfuric acid (H 2 SO 4 ) solution until the impact resistance test, the noise reduction type porous sound-absorbing concrete block manufactured by the present invention by freely dropping the steel ball of 3kg at a height of 80cm Drop resistance during cracking and fracture cracking was measured to measure impact resistance.

소음저감형 포러스 흡음콘크리트 블록의 흡음특성의 분석은 KS F 2805『잔향실내의 흡음률 측정방법』에 준하여 랜덤입사 소음의 평균 흡음률을 측정하였다.The sound absorption characteristics of the noise-reduced porous sound-absorbing concrete blocks were measured in accordance with KS F 2805, "Measurement of Sound Absorption Rate in Reverberation Chamber".

입상형 인공 Zeolite를 이용한 소음저감형 포러스 흡음콘크리트 블록의 유해가스( NOx 등) 제거율 특성을 분석하기 위하여 흡음콘크리트 블록을 밀폐된 용기내에 투입한 후 11ppm의 NOx(질소산화물)가스를 주입하여 시간경과(180min까지)에 따른 NOx(질소산화물)의 농도를 질소산화물자동측정기(NOx 메타)를 이용하여 제거율을 측정하였다.In order to analyze the removal rate of harmful gases (NOx, etc.) of noise-reducing porous sound-absorbing concrete blocks using granular artificial zeolite, the sound-absorbing concrete blocks were put in a sealed container and 11 ppm of NOx (nitrogen oxide) gas was injected. The concentration of NOx (nitrogen oxide) according to (up to 180 min) was measured using a nitrogen oxide automatic measuring device (NOx meta).

소음저감형 포러스 흡음콘크리트 블록의 배합 실시예 1Mixing Example 1 of Noise Reducing Porous Sound-absorbing Concrete Block 골재종류Aggregate Type 부 순 돌+재생골재Crushed Stone + Recycled Aggregate 골재입경Aggregate particle size 5.0∼13.0mm5.0-13.0mm 배합번호Formulation Number 물-시멘트비%Water-cement ratio% 설계공극률%Design Porosity% 재생골재혼입률1)(Vol.%)Recycled aggregate mixing rate 1) (Vol.%) 아크릴계수지혼입률3)(wt.%)Acrylic resin content 3) (wt.%) 섬유혼입률4)(Vol.%)Fiber mixing rate 4) (Vol.%) 고성능AE 감수제5)(wt.%)High performance AE water reducer 5) (wt.%) PF6) PF 6) GF7) GF 7) 100100 2525 2525 -- -- -- -- 0.5∼1.20.5 to 1.2 101101 1010 33 -- 102102 1010 -- 33 103103 1010 -- -- -- 104104 1010 33 -- 105105 1010 -- 33 106106 3030 -- -- -- 107107 1010 33 -- 108108 1010 -- 33 109109 5050 -- -- -- 110110 1010 33 -- 111111 1010 -- 33 112112 100100 -- -- -- 113113 1010 33 -- 114114 1010 -- 33 골재종류Aggregate Type 부 순 돌+경량골재Crushed Stone + Light Aggregate 골재입경Aggregate particle size 2.0∼13.0mm2.0-13.0mm 배합번호Formulation Number 물-시멘트비%Water-cement ratio% 설계공극률%Design Porosity% 경량골재혼입률2)(Vol.%)Light weight aggregate mixing rate 2) (Vol.%) 아크릴계수지혼입률3)(wt.%)Acrylic resin content 3) (wt.%) 섬유혼입률4)(Vol.%)Fiber mixing rate 4) (Vol.%) 고성능AE 감수제5)(wt.%)High performance AE water reducer 5) (wt.%) PF6) PF 6) GF7) GF 7) 200200 2525 2525 -- -- -- -- 0.5∼1.20.5 to 1.2 201201 1010 33 -- 202202 1010 -- 33 203203 1010 -- -- -- 204204 1010 33 -- 205205 1010 -- 33 206206 3030 -- -- -- 207207 1010 33 -- 208208 1010 -- 33 209209 5050 -- -- -- 210210 1010 33 -- 211211 1010 -- 33 212212 100100 -- -- -- 213213 1010 33 -- 214214 1010 -- 33

(주1) 재생골재 혼입률(%) : (재생골재)/(골재)×100 용적비(Note 1) Recycled Aggregate Content (%): (Recycled Aggregate) / (Aggregate) × 100

(주2) 경량골재 혼입률(%) : (경량골재)/(골재)×100 용적비(Note 2) Light aggregate aggregate mixing rate (%): (light aggregate) / (aggregate) × 100 volume ratio

(주3) 아크릴계 수지 혼입률(%) : (아크릴계 수지)/(시멘트) ×100 중량비(3) Acrylic resin mixing ratio (%): (acrylic resin) / (cement) × 100 weight ratio

(주4) 섬유 혼입률(%) : (섬유)/(시멘트) ×100 용적비(Note 4) Fiber mixing rate (%): (fiber) / (cement) × 100 volume ratio

(주5) 고성능 AE감수제 혼입률(%) : (고성능 AE감수제)/(시멘트) ×100 중량비(5) High-performance AE water reducing agent mixing ratio (%): (High performance AE water reducing agent) / (cement) × 100 weight ratio

(주6) PF(Polypropylene Fiber) : 폴리프로필렌섬유(Note 6) PF (Polypropylene Fiber): Polypropylene Fiber

(주7) GF(Glass Fiber) : 유리섬유(Note 7) GF (Glass Fiber): Glass Fiber

소음저감형 포러스 흡음콘크리트 블록의 배합 실시예 2Example 2 of Noise-Reducing Porous Sound-absorbing Concrete Block 골재입경Aggregate particle size 5.0∼13.0mm5.0-13.0mm 배합번호Formulation Number 물-시멘트비(%)Water-cement ratio (%) 설계공극률(%)Design Porosity (%) 입상형 인공Zeolite1)(Vol.%)Granular Artificial Zeolite 1) (Vol.%) 아크릴계수지혼입률2)(wt.%)Acrylic resin mixing rate 2) (wt.%) 섬유혼입률3)(Vol.%)Fiber mixing rate 3) (Vol.%) 고성능AE 감수제4)(wt.%)High performance AE water reducer 4) (wt.%) PF5) PF 5) GF6) GF 6) 300300 2525 2525 1010 -- -- -- 0.5∼1.20.5 to 1.2 301301 1010 33 -- 302302 1010 -- 33 303303 3030 -- -- -- 304304 1010 33 -- 305305 1010 -- 33 306306 5050 -- -- -- 307307 1010 33 -- 308308 1010 -- 33 309309 100100 -- -- -- 310310 1010 33 -- 311311 1010 -- 33

(주1) 입상형인공Zeolite 혼입률(%):(입상형 인공 Zeolite)/(골재)×100 용적비(1) Granular artificial zeolite mixing ratio (%): (Granular artificial zeolite) / (aggregate) x 100 volume ratio

(주2) 아크릴계수지 혼입률(%) : (아크릴계 수지)/(시멘트) ×100 중량비(Note 2) Acrylic resin mixing ratio (%): (acrylic resin) / (cement) × 100 weight ratio

(주3) 섬유 혼입률(%) : (섬유)/(시멘트) ×100 용적비(Note 3) Fiber mixing rate (%): (fiber) / (cement) × 100 volume ratio

(주4) 고성능 AE감수제 혼입률(%) : (고성능 AE감수제)/(시멘트) ×100 중량비(Note 4) High-performance AE water reducing agent mixing ratio (%): (High performance AE water reducing agent) / (cement) × 100 weight ratio

(주5) PF(Polypropylene Fiber) : 폴리프로필렌섬유5) PF (Polypropylene Fiber): Polypropylene Fiber

(주6) GF(Glass Fiber) : 유리섬유6) GF (Glass Fiber): Glass Fiber

다음 표 4 는 표 2, 3의 배합 실시예 1, 2에 대한 소음저감형 포러스 흡음콘크리트 블록의 품질특성을 평가한 것이다.The following Table 4 evaluates the quality characteristics of the noise-reducing porous sound-absorbing concrete blocks for the compounding examples 1 and 2 of Tables 2 and 3.

소음저감형 포러스 흡음콘크리트 블록의 품질특성Quality Characteristics of Noise Reduction Porous Sound Absorbing Concrete Block 실시예Example 연속공극률(%)Continuous Porosity (%) 압축강도(MPa)Compressive strength (MPa) 휨감도(MPa)Flexural Sensitivity (MPa) 화학저항성1) Chemical resistance 1) 충격저항성2) Impact resistance 2) 100100 25.225.2 17.017.0 3.73.7 보통usually 보통usually 101101 23.423.4 18.118.1 4.74.7 우수Great 우수Great 102102 23.923.9 18.018.0 4.64.6 우수Great 우수Great 103103 24.824.8 16.716.7 3.83.8 보통usually 보통usually 104104 23.123.1 17.917.9 4.44.4 우수Great 우수Great 105105 23.723.7 17.717.7 4.34.3 우수Great 우수Great 106106 24.724.7 16.416.4 3.53.5 보통usually 보통usually 107107 22.922.9 17.517.5 4.24.2 우수Great 우수Great 108108 23.623.6 17.217.2 4.14.1 우수Great 보통usually 109109 24.524.5 16.016.0 3.33.3 보통usually 보통usually 110110 22.422.4 17.117.1 3.93.9 우수Great 우수Great 111111 23.323.3 17.017.0 3.83.8 보통usually 보통usually 112112 24.224.2 15.715.7 3.13.1 보통usually 보통usually 113113 22.022.0 16.716.7 3.53.5 우수Great 우수Great 114114 23.023.0 16.516.5 3.43.4 보통usually 보통usually 200200 23.323.3 17.517.5 3.93.9 보통usually 보통usually 201201 22.122.1 18.518.5 4.64.6 우수Great 우수Great 202202 22.722.7 18.318.3 4.64.6 우수Great 우수Great 203203 23.523.5 17.117.1 3.93.9 보통usually 보통usually 204204 22.022.0 18.218.2 4.64.6 우수Great 우수Great 205205 22.822.8 18.218.2 4.54.5 우수Great 우수Great 206206 24.024.0 17.017.0 3.83.8 보통usually 보통usually 207207 22.322.3 18.118.1 4.44.4 우수Great 우수Great 208208 23.023.0 17.917.9 4.44.4 보통usually 보통usually 209209 24.324.3 16.616.6 3.53.5 보통usually 보통usually 210210 22.522.5 17.717.7 4.24.2 우수Great 우수Great 211211 23.123.1 17.517.5 4.04.0 보통usually 보통usually 212212 23.923.9 16.216.2 3.23.2 보통usually 보통usually 213213 22.222.2 17.217.2 3.83.8 우수Great 우수Great 214214 22.922.9 17.117.1 3.73.7 보통usually 보통usually 300300 24.724.7 15.715.7 3.63.6 보통usually 보통usually 301301 22.622.6 16.816.8 4.24.2 우수Great 우수Great 302302 23.623.6 16.616.6 4.04.0 우수Great 우수Great 303303 25.325.3 15.415.4 3.33.3 보통usually 보통usually 304304 23.123.1 16.516.5 3.93.9 우수Great 우수Great 305305 23.923.9 16.216.2 3.93.9 보통usually 보통usually 306306 25.125.1 15.115.1 3.13.1 보통usually 보통usually 307307 23.423.4 16.116.1 3.73.7 우수Great 우수Great 308308 23.923.9 16.016.0 3.63.6 보통usually 보통usually 309309 25.325.3 15.015.0 3.03.0 보통usually 보통usually 310310 23.523.5 15.715.7 3.33.3 우수Great 우수Great 311311 24.024.0 15.515.5 3.23.2 보통usually 보통usually

(주1) 화학저항성은 1%의 황산(H2SO4)용액에 180일 침지 시킨 후의 중량감소율로서 보통은 15%이하이며 우수는 9%이하이다.(1) Chemical resistance is the weight loss rate after immersion in 1% sulfuric acid (H 2 SO 4 ) solution for 180 days.

(주2) 충격저항성은 강구의 낙하회수가 2∼3회이면 보통이고, 4회 이상은 우수이다.(Note 2) Impact resistance is moderate when the number of drops of steel balls is two to three times, and four or more times are excellent.

실시예에 대한 품질특성 시험결과, 연속공극률의 경우 모든 종류의 골재에서 아크릴계 수지 및 섬유를 혼입함에 따라 공극률은 감소하는 것으로 나타났으나, 그 차이는 1.7∼3.0%로 미미한 것으로 나타나 배합설계시의 목표공극률을 만족하는 것으로 나타났다. 압축강도 특성은 폐콘크리트 재생골재, 경량골재, 인공 Zeolite의 혼입률이 증가함에 따라 강도는 감소하는 경향을 나타냈으나, 모든 실시예에서 15.0MPa 이상의 압축강도를 나타냈다. 또한, 아크릴계 수지를 혼입한 경우가 혼입하지 않은 경우에 비하여 6∼10%의 강도증진을 나타냈으며, 이러한 경향은 시멘트 중량비로 점성이 큰 아크릴계 수지를 혼입함으로서 시멘트 페이스트의 접착력이 증대되어 강도가 증가한 것으로 판단된다. 휨강도 특성은 부순돌의 경우 3.7∼4.7MPa, 폐콘크리트 재생골재의 경우에는 3.1∼4.4MPa, 경량골재의 경우에는 3.2∼4.6MPa, 입상형 인공 Zeolite의 경우에는 3.0∼4.2MPa로 나타났으며, 섬유 및 아크릴계 수지를 혼입한 경우가 혼입하지 않은 경우에 비하여 우수한 휨강도 특성을 나타냈다. 이러한 경향은 아크릴계 수지 및 섬유를 혼입함에 따라 시멘트 페이스트의 점성증대와 휨거동시 시멘트 페이스트의 내부에 균일하게 분포되어 있는 섬유에 의해 휨균열에 대한 저항성이 향상되어 강도가 증가한 것으로 판단된다. 화학저항성 및 충격저항성은 골재 종류에 관계없이 아크릴계 수지 및 섬유를 혼입한경우가 혼입하지 않은 경우에 비하여 우수한 화학저항성 및 내충격성을 나타냈으며, 이러한 원인은 섬유 및 아크릴계 수지를 혼입함으로서 시멘트 페이스트와 골재간의 부착력 증대로 인하여 황산염과 에트링가이트(Ettringite)에 의한 팽창압 및 충격에 대한 저항성이 증진되어 우수한 화학저항성 및 내충격성이 나타난 것으로 판단된다.As a result of the quality characteristics test for the examples, the porosity decreased with the mixing of acrylic resin and fiber in the aggregate of all kinds of aggregates, but the difference was found to be insignificant as 1.7 ~ 3.0%. The target porosity was found to be satisfied. The compressive strength characteristics showed a tendency to decrease as the mixing ratio of waste concrete recycled aggregate, lightweight aggregate, and artificial zeolite increased, but the compressive strength of all the examples showed more than 15.0 MPa. In addition, when the acrylic resin was mixed, the strength was increased by 6 to 10% compared with the case where the acrylic resin was not mixed, and this tendency was increased by incorporating the acrylic resin having a high viscosity by the cement weight ratio, thereby increasing the adhesive strength of the cement paste. It seems to be. The flexural strength characteristics were found to be 3.7 ~ 4.7MPa for crushed stone, 3.1 ~ 4.4MPa for recycled concrete aggregate, 3.2 ~ 4.6MPa for lightweight aggregate, 3.0 ~ 4.2MPa for granular artificial zeolite. The case where fiber and acrylic resin were mixed showed superior flexural strength characteristics as compared with the case where no fiber and acrylic resin were mixed. This tendency is believed to increase the strength and resistance to flexural cracking due to the increase in viscosity of cement paste and the uniform distribution of the cement paste during bending behavior as the acrylic resin and fiber are mixed. Regardless of the aggregate type, chemical resistance and impact resistance showed better chemical resistance and impact resistance than when the acrylic resin and the fiber were not mixed. This is caused by the incorporation of the fiber and the acrylic resin. Due to the increase in adhesion strength, the resistance to expansion pressure and impact caused by sulfate and ettringite is enhanced, and thus, excellent chemical resistance and impact resistance are considered.

다음 표 5 는 표 2와 표3 의 배합 실시예 1, 2에 대한 소음저감형 포러스 흡음콘크리트 블록의 평균흡음률을 평가한 것이다.Table 5 below is an evaluation of the average sound absorption rate of the noise-reducing porous sound-absorbing concrete blocks for the blending examples 1 and 2 of Table 2 and Table 3.

소음저감형 포러스 흡음콘크리트 블록의 평균흡음률Average Sound Absorption Rate of Noise Reduction Porous Sound Absorbing Concrete Block 실시예Example 평균흡음률(%)Average Sound Absorption Rate (%) 실시예Example 평균흡음률(%)Average Sound Absorption Rate (%) 100100 7272 206206 7575 101101 6868 207207 7272 102102 7171 208208 7373 103103 7171 209209 7777 104104 6969 210210 7575 105105 7070 211211 7777 106106 7070 212212 7878 107107 6969 213213 7676 108108 7070 214214 7676 109109 6868 300300 7171 110110 6767 301301 7070 111111 6767 302302 7070 112112 6767 303303 7373 113113 6666 304304 7171 114114 6767 305305 7272 200200 7171 306306 7373 201201 7070 307307 7070 202202 7070 308308 7272 203203 7373 309309 7474 204204 7171 310310 7272 205205 7272 311311 7272

실시예에 대하여 250, 500, 1,000, 2,000Hz에서의 흡음률을 KS F 2805『잔향실내의 흡음률 측정방법』에 준하여 각각의 주파수대에서의 흡음률을 측정하여 이들의 평균값으로 평균흡음률을 산출하였다. 실시예에 대한 평균흡음률 특성은 부순돌을 사용한 경우 68∼72%, 폐콘크리트 재생골재의 경우 66∼71%, 경량골재의 경우에는 70∼78%, 입상형 인공 Zeolite의 경우에는 70∼74%의 평균흡음률을 나타내 경량골재를 사용한 경우가 가장 우수한 흡음특성을 나타냈다. 이러한 경향은 입도범위가 2.0∼13.0mm의 경량골재를 사용함에 따라 동일의 설계공극률일 경우 상대적으로 내부의 비표면적이 증대되어 소음이 포러스 흡음콘크리트 블록에 입사되었을 때 공기의 점성저항 및 내부 공극 벽면과의 마찰로 인하여 소음이 열에너지로 전환·소비되는 정도가 상대적으로 높아 평균흡음률이 증가한 것으로 판단된다.According to the KS F 2805 "Method of measuring sound absorption in a reverberation chamber", the sound absorption rate at 250, 500, 1,000, and 2,000 Hz was measured and the average sound absorption was calculated from these average values. The average sound absorption characteristics for the examples are 68-72% for the use of crushed stone, 66-71% for the waste concrete recycled aggregate, 70-78% for the light aggregate, and 70-74% for the granular artificial zeolite. The average sound absorption was shown to be the best when the light weight aggregate was used. This tendency is due to the use of lightweight aggregates with a particle size range of 2.0 to 13.0 mm, which increases the relative specific surface area at the same design porosity. The average sound absorption rate is considered to be increased due to the relatively high degree of conversion of noise into heat energy due to friction with.

다음 표 6 은 표3 의 배합 실시예 2에 대한 인공 Zeolite를 사용한 소음저감형 포러스 흡음콘크리트 블록의 NOx(질소산화물) 제거율을 평가한 것이다.Table 6 shows the NOx (nitrogen oxide) removal rate of the noise-reduced porous sound-absorbing concrete block using artificial zeolite for the compounding example 2 of Table 3.

인공 Zeolite를 사용한 소음저감형 포러스 흡음콘크리트 블록의 NOx(질소산화물) 제거율NOx removal rate of noise-reducing porous sound-absorbing concrete blocks using artificial zeolite 실시예Example NO 제거율(%)NO removal rate (%) 실시예Example NO 제거율(%)NO removal rate (%) 300300 4.84.8 306306 15.715.7 301301 4.54.5 307307 15.115.1 302302 4.64.6 308308 15.415.4 303303 10.210.2 309309 21.521.5 304304 9.39.3 310310 20.320.3 305305 9.79.7 311311 20.820.8

인공 Zeolite를 사용한 소음저감형 포러스 흡음콘크리트 블록의 NOx(질소산화물)의 제거율은 입상형 인공 Zeolite의 혼입률이 증가함에 따라 증가하는 경향을 나타냈으며, 입상형 인공 Zeolite의 혼입률이 10%일 경우에는 4.5∼4.8%, 혼입률이 30%일 경우에는 9.3∼10.2%, 혼입률이 50%일 경우에는 15.1∼15.7%, 혼입률이 100%일 경우에는 20.3∼21.5%의 NOx(질소산화물)의 제거율을 나타냈다. 이와 같이 입상형 인공 Zeolite를 소음저감형 흡음콘크리트 블록의 재료로 사용함에 따라 NOx(질소산화물)가 제거되는 원인은, 인공 Zeolite 내부 매트릭스 구조가 미세다공질의 구조로 이루어져 있어 대기중의 유해가스인 NOx(질소산화물)를 흡착하기 때문으로 판단된다.The removal rate of NOx (nitrogen oxides) in the noise-reduced porous sound-absorbing concrete block using artificial zeolite tended to increase as the mixing rate of granular artificial zeolite increased. The removal rates of NOx (nitrogen oxides) of 4.8% and 30% were 9.3-10.2%, 50% and 15.1-15.7%, and 100% and 20.3-21.5%, respectively. The reason why NOx (nitrogen oxide) is removed by using granular artificial zeolite as a material of noise-absorbing concrete block is that the artificial zeolite internal matrix structure is composed of microporous structure, which is a noxious gas in the atmosphere. It is considered to be because it adsorbs (nitrogen oxide).

상술한 바와 같이 본 발명은 소음저감형 포러스 흡음콘크리트 블록을 제조하는데 있어 폐콘크리트 부산물인 재생골재를 사용함으로서 자원의 재활용을 통한 천연자원의 고갈방지, 환경오염 방지 및 국가에너지 절약효과와 비중이 작은 경량골재를 사용함으로서 경량흡음블록의 제조가 가능하다. 또한, 기존의 흡음벽 재료로 사용되는 암면, 유리면과 같은 다공성 섬유재질의 재료들은 발암물질과 같은 유해물질을 발산하고 강우시 물을 흡수하면 흡음성능이 저하되는 단점 등을 인체에 무해한 다공질 포러스콘크리트로 흡음블록을 제조하여 도로, 지하철, 철도, 공항 및 주거공간과 같은 지역에 적용함으로서 교통소음 및 생활소음의 저감과, 인공 Zeolite의 흡착기능에 의한 유해가스인 NOx(질소산화물) 저감 등의 환경부하저감을 통하여 인류의 쾌적한 주거환경을 조성할 수 있는 것이다.As described above, the present invention uses recycled aggregates, which are waste concrete by-products, in the production of noise-reducing porous sound-absorbing concrete blocks, to prevent the exhaustion of natural resources through the recycling of resources, to prevent environmental pollution, and to reduce the national energy saving effect and the specific gravity. By using light weight aggregates, it is possible to manufacture light weight sound absorbing blocks. In addition, porous fiber materials such as rock wool and glass wool, which are used as conventional sound absorbing wall materials, emit harmful substances such as carcinogens and absorb sound when raining. By producing a sound absorbing block and applying it to areas such as roads, subways, railways, airports and residential spaces, it is possible to reduce traffic noise and living noise, and to reduce NOx (nitrogen oxide), a harmful gas by adsorption function of artificial zeolite. By reducing the load, we can create a pleasant living environment for humankind.

Claims (6)

소음저감형 포러스 흡음콘크리트 블록의 제조시 비중이 3.14∼3.22이고 화학적 주성분은 CaO 60.0∼65.0%, SiO220.0∼24.0%, Al2O33.5∼5.5%인 보통포틀랜드시멘트나 조강시멘트를 사용하고, 골재는 입도범위가 2.0∼5.0mm, 5.0∼13.0mm, 비중 2.60∼2.75의 부순돌 또는 비중 2.42∼2.55인 KS 규격의 폐콘크리트 재생골재와 비중 0.8∼1.8, 흡수율 1.2∼1.8%인 건재용 경량골재를 부순돌 대체비(용적비)로 0∼100% 혼입하여 사용하고, NOx(질소산화물) 등의 유해가스 흡착을 위하여 비중 1.70∼1.75, SiO2함량이 48.3%, 입도범위 2.0∼5.0mm, 5.0∼13.0mm의 입상형 인공 Zeolite를 골재 대체비(용적비)로 0∼100% 혼입하며, 시멘트 페이스트의 일정한 워커빌리티 확보 및 강도증진을 위하여 고성능 AE감수제를 시멘트 중량비로 0.5∼1.2%로 혼입하고 물-시멘트비(중량비)를 15∼30%로 하여 연속공극률을 15∼30% 형성시켜 공극면의 마찰에 의한 음 에너지를 감쇄시키는 것을 특징으로 하는 소음저감형 포러스 흡음콘크리트 블록의 제조방법.When manufacturing noise-reducing porous sound-absorbing concrete blocks, use ordinary portland cement or steel cement with specific gravity of 3.14∼3.22, chemical main components of CaO 60.0∼65.0%, SiO 2 20.0∼24.0%, Al 2 O 3 3.5∼5.5%. , Aggregate is 2.0 ~ 5.0mm, 5.0 ~ 13.0mm, crushed stone with specific gravity 2.60 ~ 2.75 or waste concrete recycled aggregate of KS standard with specific gravity 2.42 ~ 2.55, and dry matter with specific gravity 0.8 ~ 1.8, absorption rate 1.2 ~ 1.8% Light aggregate is used by mixing 0-100% as the replacement stone (volume ratio), and specific gravity 1.70 ~ 1.75, SiO 2 content 48.3%, particle size range 2.0 ~ 5.0mm for adsorption of harmful gas such as NOx (nitrogen oxide). , 5.0 ~ 13.0mm granular artificial zeolite is mixed with 0-100% as aggregate replacement ratio (volume ratio), and high performance AE water reducing agent is mixed with 0.5 ~ 1.2% by cement weight ratio to secure uniform workability and increase strength of cement paste. The water-cement ratio (weight ratio) is 15 to 30% and the continuous porosity is 1 A method for producing a noise-reducing porous sound-absorbing concrete block, which is formed by 5 to 30% to attenuate sound energy due to friction of a void surface. 삭제delete 제 1항에 있어서,The method of claim 1, 소음저감형 포러스 흡음콘크리트 블록의 제조시 휨인성 및 균열저항성의 확보를 위하여 비중 0.90∼0.92, 인장강도 2,500∼2,700kgf/cm2, 섬유길이 3∼40mm인 폴리프로필렌섬유를 시멘트 용적비로 1.0∼5.0% 혼입하거나, 비중 2.50∼2.55, 인장강도 25,000∼26,000kgf/cm2, 섬유길이 3∼40mm인 내알칼리성 유리섬유를 시멘트 용적비로 1.0∼5.0% 혼입하는 것을 특징으로 하는 소음저감형 포러스 흡음콘크리트 블록의 제조방법.In order to secure the flexural toughness, and crack resistance in the production of porous sound-absorbing concrete block-shaped noise absorbing 0.90 to 0.92 specific gravity, tensile strength 2,500~2,700kgf / cm 2, a fiber length of 1.0 to 5.0 the 3~40mm of polypropylene fibers to cement ratio for Sound-absorbing porous sound-absorbing concrete block, characterized by mixing 1.0% to 5.0% of alkali-resistant glass fibers having a specific gravity of 2.50 to 2.55, a tensile strength of 25,000 to 26,000 kgf / cm 2 , and a fiber length of 3 to 40 mm. Manufacturing method. 제 1항에 있어서The method of claim 1 소음저감형 포러스 흡음콘크리트 블록의 제조시 강도, 충격저항성 및 화학저항성 등의 확보를 위하여 비중 1.05∼1.06, 점도 50∼70mPa·s의 아크릴계 수지를 시멘트 중량비로 5∼20% 혼입하는 것을 특징으로 하는 제조방법In the production of noise-reducing porous sound-absorbing concrete blocks, acrylic resins having a specific gravity of 1.05 to 1.06 and a viscosity of 50 to 70 mPa · s are mixed at a cement weight ratio of 5 to 20% in order to secure strength, impact resistance and chemical resistance. Manufacturing method 제 1항에 있어서,The method of claim 1, 소음저감형 포러스 흡음콘크리트 블록의 제조시 블록 표면에 마름모형 홈(20), 원형 홈(30), "ㄱ"자형 홈(50) 및 "1/4" 원형 홈(60)을 블록 두께의 30∼70% 깊이까지 형성시켜 흡음면적의 극대화로 인하여 수직입사 소음은 물론 경사입사 소음의 흡음률을 확보하는 것을 특징으로 하는 소음저감형 포러스 흡음콘크리트 블록의 제조방법.In the manufacture of the noise-reducing porous sound-absorbing concrete block, the rhombic groove 20, the circular groove 30, the "a" shaped groove 50 and the "1/4" circular groove 60 are formed on the surface of the block. Method of producing a noise-reducing porous sound-absorbing concrete block, characterized in that to form a depth up to ~ 70% to ensure the sound absorption rate of the vertical incidence noise as well as the inclined incidence noise by maximizing the sound absorption area. 제 3항 또는 제 4항 중 어느 한 항에 있어서,The method according to claim 3 or 4, 소음저감형 포러스 흡음콘크리트 블록의 제조시 블록 표면에 마름모형 홈(20), 원형 홈(30), "ㄱ"자형 홈(50) 및 "1/4" 원형 홈(60)을 블록 두께의 30∼70% 깊이까지 형성시켜 흡음면적의 극대화로 인하여 수직입사 소음은 물론 경사입사 소음의 흡음률을 확보하는 것을 특징으로 하는 소음저감형 포러스 흡음콘크리트 블록의 제조방법.In the manufacture of the noise-reducing porous sound-absorbing concrete block, the rhombic groove 20, the circular groove 30, the "a" shaped groove 50 and the "1/4" circular groove 60 are formed on the surface of the block. Method of producing a noise-reducing porous sound-absorbing concrete block, characterized in that to form a depth up to ~ 70% to ensure the sound absorption rate of the vertical incidence noise as well as the inclined incidence noise by maximizing the sound absorption area.
KR10-2003-0080432A 2003-11-14 2003-11-14 Manufacturing Methods of Noise Reducing Porous Sound Absorption Concrete Block Using Waste Concrete By-product, Lightweight Aggregate and Artificial Zeolite KR100438139B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR10-2003-0080432A KR100438139B1 (en) 2003-11-14 2003-11-14 Manufacturing Methods of Noise Reducing Porous Sound Absorption Concrete Block Using Waste Concrete By-product, Lightweight Aggregate and Artificial Zeolite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR10-2003-0080432A KR100438139B1 (en) 2003-11-14 2003-11-14 Manufacturing Methods of Noise Reducing Porous Sound Absorption Concrete Block Using Waste Concrete By-product, Lightweight Aggregate and Artificial Zeolite

Publications (2)

Publication Number Publication Date
KR20030095382A KR20030095382A (en) 2003-12-18
KR100438139B1 true KR100438139B1 (en) 2004-07-14

Family

ID=32389414

Family Applications (1)

Application Number Title Priority Date Filing Date
KR10-2003-0080432A KR100438139B1 (en) 2003-11-14 2003-11-14 Manufacturing Methods of Noise Reducing Porous Sound Absorption Concrete Block Using Waste Concrete By-product, Lightweight Aggregate and Artificial Zeolite

Country Status (1)

Country Link
KR (1) KR100438139B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100917452B1 (en) 2009-06-08 2009-09-14 충남대학교산학협력단 The methods to manufacture an environmentally friendly, highly durable and high-functional concrete utilizing multi-component-blended cement, na type - artificial zeolite and new-materials for performance improvement
KR101172256B1 (en) 2012-02-07 2012-08-09 주식회사지이티-피씨 Noise Barrier
CN104724988A (en) * 2015-01-29 2015-06-24 安徽鑫润新型材料有限公司 Novel lightweight porous coal gangue brick with sound absorption effect and preparation method thereof

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100754910B1 (en) * 2006-10-10 2007-09-03 (주)한남개발 Concrete paving blocks for side walk and road using waste stone and the making method thereof
KR101037073B1 (en) * 2011-03-17 2011-05-26 (주)포크리트 High fire resistant mortar composition using recycled aggregate and its construction method
KR101136947B1 (en) * 2011-11-22 2012-04-20 고재웅 Lightweight aggregate material and method for manufacturing thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100917452B1 (en) 2009-06-08 2009-09-14 충남대학교산학협력단 The methods to manufacture an environmentally friendly, highly durable and high-functional concrete utilizing multi-component-blended cement, na type - artificial zeolite and new-materials for performance improvement
KR101172256B1 (en) 2012-02-07 2012-08-09 주식회사지이티-피씨 Noise Barrier
CN104724988A (en) * 2015-01-29 2015-06-24 安徽鑫润新型材料有限公司 Novel lightweight porous coal gangue brick with sound absorption effect and preparation method thereof

Also Published As

Publication number Publication date
KR20030095382A (en) 2003-12-18

Similar Documents

Publication Publication Date Title
Raj et al. Physical and functional characteristics of foam concrete: A review
CN101244920B (en) Concrete base sound absorption material for road sound screen and method of manufacturing the same
CN101205697B (en) Concrete paving brick capable of purifying air and method for manufacturing the same
CN101050129A (en) Heat preservation and energy saving type lightweight, gas filled wall bricks, and preparation method
CN105658881B (en) Concrete element comprising a sound absorber
KR101135018B1 (en) A Composition of Reinforcement Mortar Having Quick-hardening and Lightweight
CN101580365A (en) Wall material of polystyrene aeroconcrete
CN102795813B (en) Dense-graded asphalt concrete with continuous skid-resistant and noise-reduction functions
CN101603347A (en) Be with light heat-insulation mortar bed yi word pattern recycled concrete block and preparation method thereof
KR100438139B1 (en) Manufacturing Methods of Noise Reducing Porous Sound Absorption Concrete Block Using Waste Concrete By-product, Lightweight Aggregate and Artificial Zeolite
Wongkvanklom et al. Strength, thermal conductivity and sound absorption of cellular lightweight high calcium fly ash geopolymer concrete.
KR20040100202A (en) Concrete Composition for Lightweight and Sound Absorber and Method of Making The Same
Hameed et al. Using the glass and rubber waste as sustainable materials to prepare foamed concrete with improved properties
CN104496309A (en) Method for preparing underground railway track acoustical board
CN102518251A (en) Wall body board and manufacture method thereof
CN101818484B (en) Special silicon-magnesium-polymer cement acoustic panel of road sound barrier and preparation method thereof
KR0135578B1 (en) Concrete material for sound-absorbing
KR20060096239A (en) Sound absorption panel
CN113373833A (en) Plug-in type light high-strength durable composite structure sound barrier and mounting method thereof
CN106186907A (en) A kind of High-performance cast-in-place foam concrete
KR100334141B1 (en) Manufacturing Methods of Environmental Absorption Concrete with Continuous Voids using Recycled Aggregate and New Materials (Steel Fiber, Polypropylene Fiber)
CN202337952U (en) Cement base pearlite composite sound barrier
KR100532540B1 (en) Bubble concrete mortar composition and its manufacturing process
KR20150027944A (en) Sound proofing panel combined the no fine concrete for sound absorbing effect with the cement extruding panel for sound proofing effect and its manufacturing method
KR100704653B1 (en) Board using peright and method of producing thereof

Legal Events

Date Code Title Description
A201 Request for examination
A302 Request for accelerated examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20130603

Year of fee payment: 10

FPAY Annual fee payment

Payment date: 20140602

Year of fee payment: 11

FPAY Annual fee payment

Payment date: 20150602

Year of fee payment: 12

FPAY Annual fee payment

Payment date: 20160601

Year of fee payment: 13

FPAY Annual fee payment

Payment date: 20170609

Year of fee payment: 14

FPAY Annual fee payment

Payment date: 20180530

Year of fee payment: 15