• Proceedings of the Korean Radioactive Waste Society Conference
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• 2015.10a
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• pp.313-314
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• 2015

• Proceedings of the Korean Radioactive Waste Society Conference
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• 2012.05a
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• pp.191-192
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• 2012

• Proceedings of the Korean Radioactive Waste Society Conference
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• 2011.10a
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• pp.515-516
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• 2011

• Proceedings of the Korea Concrete Institute Conference
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• 2008.11a
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• pp.573-576
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• 2008

Recently, it is the well-known that there are some kinds of problem the waste concrete generated while repairing, reinforcing and dismantling of structures in the domestic and overseas. In this paper, various tests were performed about the use of the recycled concrete fine aggregate for the materials of high quality and structural concrete. And also, in order to improve structural performance of the concrete structure the steel frame was under overcrowded arrangement of steel bar. Consequently, it was be necessary the Self-Consolidating Concrete(SCC) that can fill the concrete into the work-form corner which has become overcrowded arrangement of steel bar without any other vibration. The purpose of this study is related to the properties of Self-Consolidating Concrete(SCC) according to mixing ratio of recycled concrete fine aggregate.

• Journal of the Korean Recycled Construction Resources Institute
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• v.6 no.2
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• pp.115-122
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• 2018

In this paper, the feasibility of recycling concrete waste as a method to reduce final disposal amount of wastes generated through decommissioning of nuclear power plant has been analyzed based on experimental results of existing literature. When recycled concrete waste was used as recycled aggregate, it was investigated through literature that the concrete strength decreased by 30~40% depending on the mixing ratio. It was also investigated that concrete with recycled aggregate can be used as a structural material when the quality of recycled aggregate is well managed since no significant problem was found. When recycled cement produced from concrete waste was used, the strength of concrete or mortar decreased considerably as the recycled cement content increased. Therefore, it can be concluded that concrete or mortar with recycled cement can be used as a filling material for final disposal of large radioactive waste rather than for structural use. This paper is expected to be useful for reduction on disposal volume and decommissioning cost for nuclear power plants such as Kori 1.

• Proceedings of the Korea Concrete Institute Conference
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• 2010.05a
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• pp.381-382
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• 2010

The fiber dispersion performance in fiber-reinforced cementitious composites is a crucial factor with respect to achieving desired mechanical performance. Thus, fiber dispersion of ECC incorporated by recycled mineral wastes was evaluated to more accurately predict uniaxial tension behavior.

• Proceedings of the Korea Concrete Institute Conference
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• 2010.05a
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• pp.355-356
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• 2010

This study investigates freez-thow resistance and chloride migration of Eco-ECC which is produced with recycled mineral wastes. The experiments are performed according to Korea standard method and NT Build 492.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2022.04a
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• pp.107-108
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• 2022

This study aims to solve environmental problems by reducing complex degradation and recycling industrial waste by utilizing waste fibers and blast furnace slags, which are industrial by-products. In addition, it is intended to secure long-term durability to reduce cracks. To this end, the disadvantages of fiber-reinforced concrete are to solve the problem of lowering liquidity and ensuring curing time, and to find the optimal combination when waste fibers and blast furnace slag are used together.

• Magazine of the Korea Concrete Institute
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• v.27 no.4
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• pp.45-49
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• 2015

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2007.11a
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• pp.408-411
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• 2007

Many studies are currently in progress concerning about recycling due to the environmental problems and the drain of the resources. Nowaday, the problems on wastes are increasing thus studies on the construction waste are necessary which is the greater part of domestic wastes. And much more studies on the waste concrete which takes a large part of construction wastes are in progress but the studies on how to handle the waste concrete economically are unsatisfactory. This study suggests the analyzation of the economical way of handling the waste concrete by processes depending on the cost which needed in the each process, and can be the fundamental data of the future construction waste recycling system.