• Proceedings of the Korea Concrete Institute Conference
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• 1998.04b
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• pp.661-664
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• 1998

In this paper, the properties of inter-lacking block by the kind of aggregate and fineness modulus are investigated. According to the experimental results, compressive strength and flexural strength increase and absorption ratio decrease with larger fineness modulus in the range of 2.15~4.20. Flexural strength with river sand is higher than that with crushed sand by about 19%, compressive strength with river sand, that with crushed sand by about 11% and absorption ratio with river sand is smaller than that with crushed sand by abort 2%.

• Proceedings of the Korea Concrete Institute Conference
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• 1994.04a
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• pp.197-202
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• 1994

This study is designed for analyzing the physical properties of grading, shape, specific gravity and etcetera of mine-waste as the aggregate of concrete when mine waste is crushed by jaw crusher, and is aimed presenting the using the possibility, content and reference data for the quality control of practical use on the concrete using the mine-waste aggregate.

• Magazine of the Korea Concrete Institute
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• v.14 no.2
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• pp.6-8
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• 2002

제로 에미션(zero emission)이란 영어를 뜻대로 번역하면 "배출을 없게 한다"라고 할 수 있다. 그러나, 이는 현재까지의 기술로 대기오염의 배출영역까지 제로화는 불가능하므로 이 부분을 포함시키는 것은 적합하지 않고, 유상이던 무상이던 매립되는 최종 처분량인 배출물(폐기물)을 제로화 시키는 운동으로 정의되고 있다. 즉, 대상으로 하는 산업에서 발생하는 배출물을 다른 산업의 자원으로 재이용(recycling)하고, 산업 관련망으로 배출물이 나오지 않게 네트워크 시스템을 구축하는 일종의 환경운동으로 이해하면 좋을 것이다.(중략)

• Proceedings of the Korea Concrete Institute Conference
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• 1998.10c
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• pp.117-120
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• 1998

The objective of this study is to investigate the possibility for application of E.P-dust as both admixture and fillers for aggregates under various mixproportion, replacing method and the ratios of replacement. According to the experimental results, improvement of viscosity and reducing of segregation at fresh state and gain in strength at hardened state can be achieved by applying E.P-dust. It can be considered from the results that application of E.P-dust will be more efficient as fillers for aggregates than as binder

• Proceedings of the Korea Concrete Institute Conference
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• 2001.11a
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• pp.141-146
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• 2001

Permeable polymer concrete has a lot of internal voids, which has more excellent performance in permeability and durability than asphalt and cement concrete. Therefore, in this paper, influences of grading distribution of aggregates on the permeable polymer concrete are presented using polyester resin as binders. According to test results, it shows that compressive strength and unit weight increase with continuous grading distribution and increase of binder content, while void and permeability coefficient shows decline tendency

• Proceedings of the Korea Concrete Institute Conference
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• 2001.11a
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• pp.232-328
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• 2001

This paper investigates the influences of water content and viscosity agent on the bleeding of concrete. According to test results, fluidity shows decline tendency as water content decreases, and dosage of viscosity agent increases. PEO viscosity agent does not affect the air contents while, MC viscosity agent causes air loss. As for bleeding, bleeding decreases with decrease of water content. As dosage of viscosity agent increase, bleeding decreases, regardless of viscosity kinds. It is thought that viscosity agents have the favorable effect of reducing bleeding, if fluidity and air loss are improved.

• Proceedings of the Korea Concrete Institute Conference
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• 1994.10a
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• pp.111-114
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• 1994

This study is aimed for reusing the mine wastes as aggregates for concrete. In this part, the test results by analyzing the several properties in case of reusing the mine waste as mortar and concrete aggregates show that compressive strength has the similar value, although there are a little differences according to the mines and producing areas.

• Proceedings of the Korea Concrete Institute Conference
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• 1994.10a
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• pp.137-142
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• 1994

This study is aimed for producing the high strength Re-Mi-Con about 400kg/$\textrm{cm}^2$ with Fly-Ash in consideration of the field condition and material in practice. Test results show that compressive strength for 28 days is 300~470kg/$\textrm{cm}^2$ within 30~40% of W/C according to the 15~21cm of target slump.

• Proceedings of the Korea Concrete Institute Conference
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• 1994.10a
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• pp.157-160
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• 1994

Recently, many studies on the ultra high strength concrete are performed in our country. so, this study is aimed for analyzing the effects for replacement of silica fume and fly ash. As results, slump, slump flow and compressive strength is showed the high values in replacement silica fume. Tensile strength ratio is 1/17 and bending strength ratio is 1/6 for compressive, there are results of the test.

• Proceedings of the Korea Concrete Institute Conference
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• 1991.04a
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• pp.33-36
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• 1991

This study is designed for analyzing the properties of water-proofing on cement mortar according to the using ethylene vinyle acetate emulsion, and the fine aggregate grading such as uniform, gab and continuosly grading. And is aimed for presenting the reference data on the practical use.