• Title/Summary/Keyword: eco-friendly concrete

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Study on Clay Paint using photocatalyst reacts to a visible ray (가시광선 반응형 광촉매를 이용한 점토 도료의 개발과 대기정화성능에 관한 특성 연구)

  • Lee, Jun-Cheol;Kim, Wha-Jung
    • Proceedings of the Korea Concrete Institute Conference
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    • 2006.05a
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    • pp.542-545
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    • 2006
  • In the domestic atmosphere environment, the VOCs and the NOx have a large proportion of the pollutant, and the HCHO is the main environmental pollutant factor within the house. In this study, the inorganic paint which can absorb and remove VOCs, NOx and HCHO is developed by using day-titania carrier. The basic data to develope eco-friendly inorganic paint is collected with the performance test to remove the VOCs, NOx and HCHO in the condition of the addition of several inorganic materials to the paint, and also the plan to practical use of eco-friendly inorganic paint is studied.

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A Eco-friendly Construction Plan of bridge cross over and parallel to rivers (하천 병행 및 횡단교량의 친환경 건설계획)

  • Kim, Young-Sang;Ko, Seung-Young;Kim, Hyoung-Su;Min, Young-Taek
    • Proceedings of the Korea Concrete Institute Conference
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    • 2009.05a
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    • pp.131-132
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    • 2009
  • A road construction From Gyegok to Shinduk, korea was ordered for the alternative design by Jeollabuk-do, 2008. The propose of study is to introduce the planning process for a optimal eco-friendly design and construction of bridge cross over and parallel to rivers.

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Development of the Inorganic Paint Using Clay-Titania Carrier and the Removal Property of Air Pollutant (점토와 광촉매를 이용한 무기도료의 개발과 대기정화성능에 관한 특성 연구)

  • Kim, Wha-Jung;Lee, Jun-Cheol;Chai, Han-Sik
    • Proceedings of the Korea Concrete Institute Conference
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    • 2005.11a
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    • pp.655-658
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    • 2005
  • In the domestic atmosphere environment, the VOCs and the NOx have a large proportion of the pollutant, and the HCHO is the main environmental pollutant factor within the house. In this study, the inorganic paint which can absorb and remove VOCs, NOx and HCHO is developed by using clay-titania carrier. The basic data to develope eco-friendly inorganic paint is collected with the performance test to remove the VOCs, NOx and HCHO in the condition of the addition of several inorganic materials to the paint, and also the plan to practical use of eco-friendly inorganic paint is studied.

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A Study on the Technology Trends related to Development of Eco-Friendly Concrete Product (친환경 콘크리트 제품 개발관련 기술동향 조사연구)

  • Kim, Jong-Gurl;Kwon, Byung-Moo
    • Proceedings of the Safety Management and Science Conference
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    • 2011.04a
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    • pp.359-363
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    • 2011
  • 현재 4대강 유역개발과 하천 정비 등 관련된 대규모 토목공사가 진행되고 있다. 친환경적인 수자원 정비를 가능하게 하는 친환경 콘크리트 제품의 개발은 환경오염 방지 및 환경보전에 있어서 필수적이다. 현재 국내에서는 콘크리트에 다양한 자원 순환형 재료를 적용하고 있지만, 적극적 친환경 콘크리트의 연구는 아직 미미한 상태이다. 본 논문에서는 친환경적인 수자원 정비를 가능하게 하는 콘크리트의 필요성과 활용측면에 대해 논해 보고자 한다. 또한 국내외 관련 기술현황을 비교하여 현 콘크리트 제품 개발 산업에 적용방안을 제시하고자 한다.

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A Study on the Eco-Friendly Durable Pre-Painting for Concrete Structure (콘크리트 구조물의 친환경 내구성 도장에 관한 기초 연구)

  • Jo, Byung Wan;Choi, Ji Sun;Lee, Seong Won
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.17 no.2
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    • pp.110-116
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    • 2013
  • A concrete structure has become bigger and higher because of development of construction technology and a change in construction environment. Also it tends to focus on repairing, reinforcement and exterior in harmony with environment for structure maintenance and performance improvement. The research is about eco friendly durable painting applicable to concrete structure using civil and architecture. it purpose to improve external beauties and durable problems due to flexibility by variation of temperature, adhesion of exterior wall, crack and delamination in existing organic and mineral painting. For those problems, we made a eco friendly pre-paint that is made with preliminary treatment mixture as a highly enriched waterproof agent and adhesive increasing agent in preprocessing mixture. Then we performed an experiment on durability of prevention neutralization of concrete, durability abrasion, hiding power, adhesion, temperature resistance and resistance to chemical attack. The result of an experiment shows that hiding power is over 0.96 in standard test, durability abrasion test got higher value 1mg than water paint 75mg and tensile strength is 6 times higher than standard waterproof specification.

Development of Polypropylene Fiber Reinforced Environmental Friendly Pavement Material for Farm Road (폴리프로필렌 섬유보강 환경친화형 포장재료의 개발)

  • Sung, Chan-Yong;Kim, Young-Ik
    • Journal of The Korean Society of Agricultural Engineers
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    • v.46 no.1
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    • pp.35-40
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    • 2004
  • This study is performed to examine the physical and mechanical properties of eco-concrete using soil, natural coarse aggregate, excellent soil compound and polypropylene fiber. The test result shows that mass loss ratio is decreased with increasing the content of coarse aggregate and excellent soil compound. The compressive and flexural strengths are increased with increasing the content of coarse aggregate, excellent soil compound and polypropylene fiber. The coefficient of permeability is decreased with increasing the content of coarse aggregate and excellent soil compound, but it is increased in 0.2% polypropylene fiber content. The lowest coefficient of permeability is showed in $5.066\times 10^{-9}$cm/s. These eco-concrete can be used for farm road.

Performance Evaluation of Eco-friendly Insulating Finish According to the Addition Ratio of Granular Cork (입상 코르크 첨가율에 따른 친환경 단열마감재의 성능평가)

  • Kim, Yong-Gu;Kim, Yeon-Ho;Lee, Sang-Soo
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2020.06a
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    • pp.148-149
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    • 2020
  • Currently, the most commonly used EPS insulation material has been mainly used because its ease of adhesion with concrete. However, due to poor adhesion with wallpaper, separate adhesion needs to be strengthened and there are cases of breakage or grooves in the process of dismantling the mold. The biggest problem is that when a fire breaks out, various harmful substances are present and highly flammable. Cork used in this study is a truly eco-friendly building material that is taken from between the outer and inner bark of cork trees and does not damage the wood. Also, it is a porous material that is made up of countless cells and contains an air gap between the cells. It is very light in weight between 0.06 and 0.07 and has excellent insulation with a heat conductivity of 0.04W/mK. In addition, it has high stability in the topic of conversation because it does not produce harmful gas when burned and has self-sustaining properties. However, research on cork, an eco-friendly building material with excellent performance to date, is scarce Therefore, we encourage existing scholars to raise interest in new eco-friendly building materials through this study. It also aims to manufacture insulation boards with new inorganic properties using the low weight and heat conductivity held by the cork.

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Water Purification Properties of Porous Zeolite Concrete (다공성 제올라이트 콘크리트의 수질정화 특성)

  • Choi, Min Ji;Sung, Nack Kook;Park, Sung Jae;Lee, Jung Ah;Yun, Hong Su;Hong, In Kwon
    • Applied Chemistry for Engineering
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    • v.22 no.3
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    • pp.332-335
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    • 2011
  • As our interests in eco-friendly materials have been significantly increased, the utilization of porous zeolite concrete that has structural functionality and permeability has been increased. In this paper, the mixture of porous concrete and zeolite, which can be used as multirole boulders, was investigated for the suitability of an environment-friendly product by evaluating of the water purification ability. The contamination removal rates of BOD, TOC, T-N, and T-P in stagnant water tank were 70.6, 67.0, 57.7, and 50.6%, respectively. Also for the non-point source pollution with the inflow and the outflow, the removal rates of Zn, Pb, BOD, and COD were 99.9, 90.0, 69.2, and 33.5%, respectively. The performance of the heavy metal contamination removal for the porous zeolite showed better than that of stagnant system. Therefore, it is expected that the installation of the porous zeolite concrete can play a role as an eco-friendly products by its high contamination removal.