• Journal of the Korean Society for Railway
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• v.14 no.5
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• pp.425-432
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• 2011

Concrete was identified as the significant GHG emission source resulting from a GHG emission analysis of railway infrastructure. An environmental assessment method (life cycle assessment; LCA) and low carbon railway infrastructure design strategy development method (ECODESISGN PILOT) were applied to develop low carbon railway infrastructure design strategies. The railway infrastructure was analyzed as a raw material intensive industry emitting large amount of greenhouse gas (GHG) at its construction stage. Therefore, in this study, it is analyzed that current status of GHG emission at its construction stage, and a method reducing GHG emission of railway infrastructure is proposed. In this study, eco-concrete, concrete aging prevention agent and a low carbon railway route decision method based on a need of low carbon railway infrastructure construction technology application for green railway development were considered.

• Water for future
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• v.40 no.3 s.164
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• pp.52-58
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• 2007

• Magazine of RCR
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• v.9 no.4
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• pp.42-47
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• 2014

• Journal of the Korea Construction Safety Engineering Association
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• s.46
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• pp.82-91
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• 2008

• Computational Structural Engineering
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• v.24 no.1
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• pp.8-13
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• 2011

• Cement
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• s.175
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• pp.53-61
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• 2007

• Journal of the Korea Concrete Institute
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• v.25 no.3
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• pp.261-269
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• 2013

In this study, it was developed eco-friendly inorganic binding material concrete using ground granulated blast furnace slag and alkali activator (water glass, sodium hydroxides). Eight reinforced concrete beam using inoganic binding material concrete were constructed and tested under monotonic loading. The major variables were mixture ratio of alkali activator, type of admixture and admixture. Experimental programs were carried out to improve and evaluate the flexural performance of such test specimens, such as the load-displacement, the failure mode, the maximum load carrying capacity, and ductility capacity. All the specimens were modeled in scale-down size. The eco-friendly concrete using inorganic binding material encouraged alkali activation reaction was rapidly hardening speed and showed possibility as a high strength concrete. Also, the RC beams using new materials showed similar behavior and failed similarly with RC beam used portland cement. It is thought that eco-friendly inorganic binding material concrete can be used with construction material and product as a basic research to replace cement concrete. If there is application to structures in PC member as well as production of 2nd concrete product, it could be improved the productivity and reduction of construction duration etc.

• Proceedings of the Korea Concrete Institute Conference
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• 2008.11a
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• pp.281-284
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• 2008

Recently, interest in eco-friendly structure has been increased and many researches about hwang-toh are being actively processed. However, most researches are about material properties of hwang-toh, and researches about structural performance are insufficient. Moreover, the usability of activated hwang-toh is being identified in some ways, but its use rate is low in economic aspect in reality. Non-activated hwang-toh is expected to be advantageous in respect of economy but its material and structural performance have not been identified. Therefore, the effect of activated hwang-toh and non-activated hwang-toh on flexural capacity of hwang-toh concrete beam is analyzed in this research.

• 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.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2021.05a
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• pp.138-139
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• 2021

The MiDF Cement Composite is a high-performance construction material with low defects that dehydrates surplus water through pressurization and minimizes air gap between particles. In other words, the performance expression of the MiDF cement complex is affected by pressurized conditions. Thus, this study analyzed the physical characteristics of MiDF cement complex according to the power and pressure of the ga-power and the time of application and intends to use it as a basic data for optimal mixing.