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윤준노,성찬용,김영익,Youn, Joon-No,Sung, Chan-Yong,Kim, Young-Ik 한국농공학회 2009 한국농공학회논문집 Vol.51 No.4
This study was performed to evaluate the physical and mechanical properties of porous concrete using waste activated carbon. Material used were ordinary portland cement, recycled coarse aggregate, waste activated carbon and superplasticizer. The replacement ratios of waste activated carbon were 0,1,2,3,4,5,6,7,8,9, and 10 %. The void ratio was decreased and ultrasonic pulse velocity was increased with increasing the waste activated carbon powder, respectively. The compressive strength and flexural strength of porous concrete using waste activated carbon powder were in the range of 8.21${\sim1}$6.58 MPa and 1.69${\sim1}$3.68 MPa, respectively. The pH degree of porous concrete in 1day and 77days were shown in 12.50${\sim1}$12.63 and 10.21${\sim1}$10.70, respectively. Accordingly, waste activated carbon can be used for porous concrete material.
Mechanical Behavior of Steel Fiber Reinforced Lightweight Polymer Concretese
윤준노,성찬용,Youn, Joon-No,Sung, Chan-Yong The Korean Society of Agricultural Engineers 2005 한국농공학회논문집 Vol.47 No.2
In this study, the physical and mechanical properties of steel fiber reinforced lightweight polymer concrete were investigated experimentally with various steel fiber contents. All tests were performed at room temperature, and stress-strain curve and load-deflection curve were plotted up to failure. The unit weight of steel fiber reinforced lightweight polymer concrete was in the range of $1,020{\sim}1,160\;kg/m^3$, which was approximately $50\%$ of that of the ordinary polymer concrete, The compressive strength, splitting tensile strength, flexural toughness and flexural load-deflection curves after maximum load were shown with increase of steel fiber content. The stress-strain curves of steel fiber reinforced lightweight polymer concrete were bilinear in nature with a small transition zone, Based on these results, steel fiber reinforced lightweight polymer concrete can be widely applied to the polymer composite products.
수처리 시설물에 적용되는 섬유패널 배면부의 입체 성형 각도에 따른 부착 성능 연구
윤준노 ( Youn Joon-no ),박완구 ( Park Wan-goo ),최수영 ( Choi Su-young ),김동범 ( Kim Dong-bum ),김병일 ( Kim Byoung-il ),오상근 ( Oh Sang-keun ) 한국건축시공학회 2018 한국건축시공학회 학술발표대회 논문집 Vol.18 No.2
The purpose of this study is to confirm the adhesion performance of the three - dimensional forming fiber panels by the dimensional forming angle. As a result of applying the three dimensional surface shape to the back side of the fiber panel and testing the adhesion strength by the three dimensional forming angle, it was confirmed that the bonding strength of the specimens to which the dimensional molding was applied was higher than that of the non dimensional molding. In addition, the highest adhesion strength was confirmed in a specimen having a three-dimensional forming angle of 70 °.
윤준노 ( Youn Joon-no ),성찬용 ( Sung Chan-yong ) 한국농공학회 2002 한국농공학회 학술대회초록집 Vol.2002 No.-
This study is performed to examine the non-destruction properties of the Hwangtoh mortar. The absorption ratio is in the range of 8.25% ~ 18.16%, it tend to increase with increase using the stone dust and Hwangtoh. The pulse velocity and dynamic modulus at the curing age 7 and 28days are in the range of 2,290m/s ~ 4,140m/s, 2,976m/s ~ 4,219m/s and 105×10<sup>3</sup>kgf/㎠ ~ 293×10<sup>3</sup>kgf/㎠, 137×10<sup>3</sup>kgf/㎠ ~ 318×10<sup>3</sup>kgf/㎠, respectively. They tend to decrease with increase using the stone dust and Hwangtoh.
윤준노 ( Youn Joon-no ),성찬용 ( Sung Chan-yong ) 한국농공학회 2003 한국농공학회 학술대회초록집 Vol.2003 No.-
Lightweight polymer concrete with steel fiber can be used for thin panel, high building and large span structures due to its may advantages such as its durability, low weight, control of crack propagation, high strength and toughness. This study experimented about steel fiber reinforcement of lightweight polymer concrete using synthetic lightweight aggregate. The test result shows that the maximum strain and elastic modulus are in the range of 0.012 -0.014 and 50.2 x 10<sup>3</sup>~51.0 X 10<sup>3</sup> kgf/cm<sup>2</sup>, respectively. The flexural load-deflection curves after maximum load are shown in smoothly with increase of steel fiber content
윤준노 ( Youn Joon No ),노경희 ( Noh Kyung Hee ),남기성 ( Nam Ki Sung ),성찬용 ( Sung Chan Yong ) 한국농공학회 2001 한국농공학회 학술대회초록집 Vol.2001 No.-
This study is performed to examine the development of the plantable concrete using excellent soil compound, crushed stone, stone dust and superplasticizer. The following conclusions are drawn ; The void ratio is in the range of 25.10-31.40% and the compressive strength is in the range of 69-113kgf/cm<sup>2</sup> at the curing age 28days, respectively. The plant length was showed higher block by 10% stone dust than 20%.
윤준노 ( Youn Joon No ),성찬용 ( Sung Chan Yong ),김영익 ( Kim Young Ik ) 한국농공학회 2008 한국농공학회 학술대회초록집 Vol.2008 No.-
Recently, with the rapid development of super high building and larger span concrete structure. Polymer concrete can make lightweight and high strength, and use of fiber is required to improve toughness. This study is performed to examine mechanical properties of polypropylene fiber reinforced recycled lightweight polymer concrete(PLPC) and steel fiber reinforced recycled lightweight polymer concrete(SLPC) for fiber content. The tests are carried out at 20±1℃ and 60±2% relative humidity. At 7 days of curing, their unit weight, compressive strength, flexural strength and pulse velocity ranged between 1.848~1.972kg/㎥, 40.13~52.75MPa, 14.25~18.10MPa and 3,380~3,560m/s, respectively.
비활성 황토와 석분을 혼입한 모르타르의 비파괴 및 중성화 특성
성찬용,윤준노 한국농공학회 2003 한국농공학회논문집 Vol.45 No.3
Hwangto would be an environment-friendly material that can be readily used. The purpose of this study is to obtain the absorption ratio, ultrasonic pulse velocity and neutralization of the mortar with non-active Hwangto and stone dust.The absorption ratio and neutralization depth are increased with increase of non-active Hwangto. But, the ultrasonic pulse velocity is decreased with increase of non-active Hwangto. In results of SEM analysis, the crystals are increased with increase of non-active Hwangto.
비활성 황토와 석분을 사용한 모르타르의 물리·역학적 특성
성찬용,윤준노,류능환 한국농공학회 2002 한국농공학회논문집 Vol.44 No.6
The purpose of this study is to obtain the basic data for the development of construction material products using non-active Hwangto and stone dust.The test result shows that the unit weight is in the range of 2,050∼2,135 kg/m3, the compressive strength is in the range of 107∼451 kgf/cm2, the bending strength is in the range of 23∼81 kgf/cm2 and the dynamic modulus is in the range of 137×103∼318×103 kgf/cm2. Also, it is decreased with increase using the non-active Hwangto and stone dust, respectively. The incorporation of non-active Hwangto for cement is possible to 40% in strength.
성찬용,윤준노,김경태,김영익 충남대학교 농업과학연구소 1998 농업과학연구 Vol.25 No.1
This study was performed to evaluate the engineering properties of permeable polymer concrete with rice-husk ash. The following conclusions were drawn; 1. The highest sterngth was achieved by 50% filled rice husk-ash permeable polymer concrete, it was increased 24% by compresseve, 123% by tensile and 90% by bending strength than that of the normal cement concrete, respectively. 2. The static modulus of elasticity was in the range of 1.27×10^5~1.75×10^5kgf/㎠, which was approximately 58~70% of the normal cement concrete. The higher elastic modulus was showed by 50% filled rice-husk ash permeable polymer concrete, relatively. The poisson's number of permeable polymer concrete was less than that of the normal cement concrete. 3. The ultrasonic pulse velocity was in the range of 2,503~3,083m/sec, which was showed about the same compared to that of the normal cement concrete. The higher pulse velocity was showed by 50% filled rice-husk ash permeable polymer concrete. 4. The water permeability was in the range of 4.612~5.913ℓ/㎠/hr, and it was largely dependent upon the mix design. These concrete can be used to the structures which need water permeability.