• Title/Summary/Keyword: Recycling Construction Material

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An Adiabatic Characteristic on the Waste tyre Powders Mortar-Containing (폐타이어 분말을 혼입한 몰탈의 단열특성)

  • Choi, Jae-Nam;Son, Ki-Sang
    • Journal of the Korean Society of Safety
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    • v.20 no.2 s.70
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    • pp.105-112
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    • 2005
  • This is to find out that cement mortar mixed with waste tie particle can be applied for recycling it and enhanced to have shock absorption capacity. Therefore, architectural material specification and its related references for the disposal of it are based on for the study. Test has been performed with procedure, based on the Korea Standard insulation mortar and Compressive Strength Test has been done at K remicon factory approved by Korea Government in Korea, in order to decrease any possible error in mixing procedure. Test molds far insulation capacity and cohesive strength have been delivered to the expert agency for having more exact results. The result from the above test shows that waste tyre mixed with cement mortar has almost equal to the common concrete. This means that the recycling of the waste t)re will be demanded more and more in case of having continued development for this recycling area. And also waste t)to-using construction material can be more applied for construction area than existing material. Thus, this recycling method can be very usefully applied for solving environmental problem and for establishing economic aspect.

Experimental Research on 2nd generation of Cyanobacteria Living Building Material (2세대 남세균 혼입 생체 건축 자재 생산을 위한 잔골재-젤라틴 복합체의 실험적 연구)

  • Park, Jiyoon;Son, Dasom;Yi, Chongku
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2023.11a
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    • pp.197-198
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    • 2023
  • Construction waste takes about 50% of total industrial waste. Researchers focuses to decrease the amount of construction waste by recycling the waste during the construction site. However, research about recycling the gelatin-sand composite is not yet been studied. This research is an experimental research on recycling the total specimen of gelatin-sand composite. Two methods were held when making the 2nd generation of the gelatin-sand specimen. As a result, there was no difference in flexural strenght between two different method of 2nd generation of specimen. However, the second method of 2nd generation showed about 20% higher compressive strength than the first method.

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A Study on Area Types of Recycling Agriculture (지역별 순환농업의 유형에 관한 연구)

  • 조익환
    • Korean Journal of Organic Agriculture
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    • v.11 no.3
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    • pp.91-108
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    • 2003
  • So far, we have pursued only convenient and efficient growth of economy, as a result, environment surrounding us has been destroyed and the rights of our existence gotten to be even threatened. We need to ensure our lives and at the same time, need a power with which agriculture undertakes global circulation structure and a power that is able to preserve our environment we live per so. Therefore, in the near future, the final objectives of agriculture structure for 21st century would be to increase productivity of highly developed agricultural products in accordance with the ecosystem and a recycling agriculture. What is a recycling agriculture\ulcorner In the narrow sense, it means provisions-producing- system related to interactive recycle of material among forestry, livestock husbandry and seeding agriculture. In the broad sense, it means to produce credible agricultural product by keeping balanced resources via conversion to complete degradable material of organic wastes produce within rural village. Based on this concept, finally, our goal is to construct the resources recycling community. Environment friendly agriculture ⇒ organic agriculture ⇒ recycling (circulation) agriculture ⇒ construction of community with resources recycling. Therefore, in order to construct recycling agriculture, most of all, it is considered that the following, it should be established reasonable standard amounts for fertilizer, manure and liquid fertilizer based on results of soil test by each region, nature-recycling form of crops production and livestock production systems by maximizing utilization of different recycling byproducts occurring in the crop producing process by each region.

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Basic Factors for Quality Stability of Material Recycling Product Using Plastic Waste from Households (생활계 폐플라스틱 물질 재활용 제품의 품질안정화를 위한 기초 요인 검토)

  • Kang, Suk-Pyo;Kang, Hye-Ju;Shin, Sung-Chul;Kim, Young-Sik;Lee, Hoo-Seok
    • Journal of the Korean Recycled Construction Resources Institute
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    • v.8 no.4
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    • pp.436-443
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    • 2020
  • In this paper, we tried to examine the composition ratio of plastic waste from households according to the generated city and the qualities according to the production time of material recycling products. As a result, the composition ratio of recyclable plastic waste among the total plastic waste according to the generated cities is 64.5~90.4%, showing a big difference by city. In addition, the quality evaluation of material recycling products by production time for four months showed that the average tensile strength was 12.33MPa, the average elongation rate was 5.94%, the average density was 1.35g/㎤ and the average ash content was 3.66%.

The Actual State of Demolition and Pilot Dismantling in Apartment Building (해체공사의 수행실태 및 공동주택 분별해체 시험시공)

  • Kim, Hyo-Jin;Sohn, Jeong-Rak;Park, Seong-Sik;Yoon, Yung-Sang
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2007.04a
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    • pp.113-118
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    • 2007
  • Now a performance process of Demolition works is 'Before-Removal & After-Classification' method in Korea. This method is short of demolition time, but construction wastes contained substances lower recycling rate of construction, raise expenses of reclamation & treatment. Then the government has decided upon a positive 'Before-Classification & After-Removal' method, and substantially raise a recycling rate of construction wastes. Therefore, this study makes an investigation into state of internal and external demolition field through evaluating technological level, we make a proposal of dismantling method from there. Also, we put dismantling to the test in an apartment by proposed work process. As the result, it made a term of works increased for removing interior material. To solve this problem, we need to develop tools and methods of construction that can remove efficiently. From now on, we continuously need to study a breakdown system of dismantling, analysis of dismantling process and general system by inspecting entire demolition process. And we have to study details for making a specific thesis of method of removing interior material which was based on developing a suitable partial demolition machine and dismantling works.

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A Study of CFRD using a Gravel Fill (하상사력재를 이용한 CFRD의 연구)

  • Jeong, Chan-Kyun;Noh, Tae-Gil;Lee, Song
    • Proceedings of the Korean Geotechical Society Conference
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    • 2008.10a
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    • pp.842-853
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    • 2008
  • In the construction of dam, the key factor which decides the type of dam is security of materials resource. Because of the large scale earth work, the ability to supply the materials is essential part about economical efficiency. The research is the case study about controlling the plan to secure the material resources in the design of Buhang multipurpose dam. In case of Buhang multipurpose dam, at that time of basic design, it was planned to use a rock fill material. From the detail investigation about the river bed accumulative layer widely spread on the submerged district on the basic design, the research is accomplished to replace rock material with gravel material. After the investigation of whole reserves of gravel material, estimation of conformity as dam construction material from analysis of grain size distribution, the case study of oversea construction, and the material property comparison between rock fill material and gravel fill material, it is verified th possibility of using the gravel fill. Thereafter, the analysis of dam stability using a gravel fill material is accomplished. Finally, A gravel fill material can be used as the main construction material of CFRD, therefore the efficiency of resource recycling in the submerged area is maximized, and the established plan is more advantageous to stability, constructibility, environmentibility than the case of using a rock fill.

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A study for recycling plan of excavated soil and filter cake of slurry shield TBM for road construction (도로공사 이수식 쉴드 TBM 굴착토 및 필터케이크 재활용방안 연구)

  • Nam, Sung-min;Park, Seo-young;Ahn, Byung-cheol
    • Journal of Korean Tunnelling and Underground Space Association
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    • v.24 no.6
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    • pp.599-615
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    • 2022
  • In order to excavate underground tunnel most safely such as Han river, the slurry shield TBM method is applied to cope with face of high water pressure for many metro projects. In downtown subway project most of excavated soil is discharged externally whereas in road construction excavated soil is used as filling materials so it becomes important factor for success of the project. After excavated soil, weathered rock and soft rock are discharged with bentonite through discharge pipe to slurry treatment plant then those soils are separated in separation plant according to those size. Fine grained soil has been discarded together with filter cake but it is not toxic and can be mixed with coarse aggregate in proper ratio so this study is performed to find use of qualified filling material to meet quality standard. Therefore, in this study, legal standards and quality standards for the utilization of excavated soil of the slurry shield TBM method were examined and test was conducted to derive recycling way for filter cake and aggregate. And a plan for using it as a filling material for road construction was derived. Because bentonite is a clay composed of montmorillonite, and the excavated soil in the tunnel is also non-toxic, disposal of this material can waste social cost so it is expected to be helpful in the underground space development project that carries out the TBM project by recycling it as a valuable resource.

A Study on the Recycling of Red Mud as the Raw Materials for the Manufacture of Clay Brick (점토벽돌 제조용 원료로서 레드머드 재활용에 관한 연구)

  • Kang, Hye-Ju;Lee, Yeong-Hun;Lee, Hee-Ra;Kang, Suk-Pyo
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2019.05a
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    • pp.21-22
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    • 2019
  • This study is designed to apply natural clay replaceable redmud as ceramic material by mixing redmud with the materials used in existing brickmaking in laboratory environment. Therefore, through this study, the redmud is recycled as a raw material for clay bricks and presented as a basic material for the use of redmud in clay bricks.

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Development of Non-cement Material using Recycled Resources (유동층연소방식 석탄재를 활용한 무시멘트 결합재)

  • Mun, Kyoung-Ju;Lee, Min-Hi;Yoon, Seong-Jin
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2014.11a
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    • pp.156-157
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    • 2014
  • Inorganic binding material was made by recycled resource and its applicability as pile-filling material was examined. The result was that the material had same liquidity with the liquidity of OPC and high reactivity with site soil. According to dynamic/static loading tests by site test-construction, the inorganic binding material met both design bearing capacity and settlement. Since the inorganic binding material showed same or better performance than OPC, the utilization possibility of the inorganic binding material made of recycled resource as pile-filling material was verified.

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Performance evaluation of cement-zero ECO pile-filling material utilizing recycled resource (순환자원을 활용한 Cement Zero형 ECO 파일채움재의 성능평가)

  • Song, Sang Hwon;Yoon, Seong Jin;Lee, Young Won;Eum, Hyun Mi;Mun, Kyoung Ju;Ko, Hyoung Woo
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2013.11a
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    • pp.8-10
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    • 2013
  • Inorganic binding material was made by recycled resource and its applicability as pile-filling material was examined. The result was that the material had same liquidity with the liquidity of OPC and high reactivity with site soil. According to dynamic/static loading tests by site test-construction, the inorganic binding material met both design bearing capacity and settlement. Since the inorganic binding material showed same or better performance than OPC, the utilization possibility of the inorganic binding material made of recycled resource as pile-filling material was verified.

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