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액상 항균제를 도포한 하수시설용 단면복구재의 내구특성에 관한 실험적 연구
이동혁(Lee Dong Heck),박종호(Park Jong-Ho),이의배(Lee Eui Bae),나철성(Na Chul-Sung),조봉석(Cho Bong Suk),김무한(Kim Moo Han) 한국구조물진단유지관리학회 2005 한국구조물진단학회 학술발표회논문집 Vol.- No.-
Recently, Deterioration of the sewer concrete structures by biochemical corrosion has been issued and a development of the inhibition system of corrosion that has been demanded. In this study, To prevent deterioration from biochemical corrosion of the sewer repair mortar that was spread with liquefied antibiotic and then its experimental properties were experimentally investigated and to estimate the effect of absorbed condition of restorative mortar, the number of coating times and coating contents with antibiotic on the durability properties of restorative mortar spread with antibiotics. Also, carbonation depth, chloride ion penetration depth and chemical resistance was tested to estimate the durability properties in third study. As a result, carbonation depth and chloride ion penetration depth of the specimen spread with liquefied antibiotic were superior to non spread. Also, chemical resistance of the specimen spread with liquefied antibiotic was superior to non spread.
액상 항균제를 도포한 하수시설용 단면복구재의 내구특성에 관한 실험적 연구
이동혁 ( Lee Dong Heck ),박종호 ( Park Jong-ho ),이의배 ( Lee Eui Bae ),나철성 ( Na Chul-sung ),조봉석 ( Cho Bong Suk ),김무한 ( Kim Moo Han ) 한국구조물진단유지관리공학회 2005 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.9 No.1
Recently, Deterioration of the sewer concrete structures by biochemical corrosion has been issued and a development of the inhibition system of corrosion that has been demanded. In this study, To prevent deterioration from biochemical corrosion of the sewer repair mortar that was spread with liquefied antibiotic and then its experimental properties were experimentally investigated and to estimate the effect of absorbed condition of restorative mortar, the number of coating times and coating contents with antibiotic on the durability properties of restorative mortar spread with antibiotics. Also, carbonation depth, chloride ion penetration depth and chemical resistance was tested to estimate the durability properties in third study. As a result, carbonation depth and chloride ion penetration depth of the specimen spread with liquefied antibiotic were superior to non spread. Also, chemical resistance of the specimen spread with liquefied antibiotic was superior to non spread.
항균제를 도포한 하수시설용 단면복구 모르타르의 내구특성에 관한 실험적 연구
이동혁 ( Lee Dong-heck ),이의배 ( Lee Eui Bae ),조봉석 ( Cho Bong-suk ),김재환 ( Kim Jae-hwan ),김규용 ( Kim Gvu-yong ),김무한 ( Kim Moo-han ) 한국구조물진단유지관리공학회 2005 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.9 No.2
Deterioration of sewer concrete is representative that biochemical corrosion according to the H<sub>2</sub>S has growth by inhabit sulfur-oxidzing bacteria because of special environment in sewer but in case of domestic, fundamentally, sulfur-oxidzing bacteria could moderate development of repair material · method is need because of corrosion prevent method is inconsideration with carry out to improve project. In this paper, after development of spread type antibiotic with antibio-metal, antibacterial performance about sulfur-oxidzing bacteria of antibiotic and tested to estimate fundamental properties of bonding strength, abrasion contents, contents of water absorption, contents of air permeability, carbonation depth, chloride ion penetration depth and chemical resistance of spread with antibiotic restorative mortar.
항균제를 도포한 하수시설용 단면복구 모르타르의 내구특성에 관한 실험적 연구
이동혁(Lee Dong-Heck),이의배(Lee Eui Bae),조봉석(Cho Bong-Suk),김재환(Kim Jae-Hwan),김규용(Kim Gyu-Yong),김무한(Kim Moo-Han) 한국구조물진단유지관리학회 2005 한국구조물진단학회 학술발표회논문집 Vol.9 No.2
Deterioration of sewer concrete is representative that biochemical corrosion according to the H₂S has growth by inhabit sulfur-oxidzing bacteria because of special environment in sewer but in case of domestic, fundamentally, sulfur-oxidzing bacteria could moderate development of repair materialㆍmethod is need because of corrosion prevent method is inconsideration with carry out to improve project. In this paper, after development of spread type antibiotic with antibio-metal, antibacterial performance about sulfur-oxidzing bacteria of antibiotic and tested to estimate fundamental properties of bonding strength, abrasion contents, contents of water absorption, contents of air permeability, carbonation depth, chloride ion penetration depth and chemical resistance of spread with antibiotic restorative mortar.
항균제 도포에 의한 하수시설 콘크리트의 기초물성 및 내구성능 향상에 관한 실험적 연구
이의배 ( Lee Eui-bae ),이동혁 ( Lee Dong-heck ),김영덕 ( Kim Young-duck ),조봉석 ( Cho Bong-suk ),김재환 ( Kim Jae-hwan ),김무한 ( Kim Moo-han ) 한국구조물진단유지관리공학회 2005 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.9 No.1
Sewage facilities are positively necessary for environment improvement such as rainwater removal, sewage disposal, preservation of the quality of water and health of the citizens in present-day. Meanwhile, a deterioration of the concrete sewer facilities is increasing rapidly due to the chemical and physical attack and especially biochemical attack caused by sulfur-oxidizing bacteria. In this study, to prevent biochemical corrosion of the sewer concrete, surface of the concrete was spread with liquefied organic and inorganic complex antibiotics and then its engineering properties such as water absorption coefficient, ratio of air permeability, chloride ion penetration depth and weight reduction ratio were investigated according to experimental factors.
항균제 도포에 의한 하수시설 콘크리트의 기초물성 및 내구성능 향상에 관한 실험적 연구
이의배(Lee Eui-Bae),이동혁(Lee Dong-Heck),김영덕(Kim Young-Duck),조봉석(Cho Bong-Suk),김재환(Kim Jae-Hwan),김무한(Kim Moo-Han) 한국구조물진단유지관리학회 2005 한국구조물진단학회 학술발표회논문집 Vol.- No.-
Sewage facilities are positively necessary for environment improvement such as rainwater removal, sewage disposal, preservation of the quality of water and health of the citizens in prescnt-day. Meanwhile, a deterioration of the concrete sewer facilities is increasing rapidly due to the chemical and physical attack and especially biochemical attack caused by sulfur-oxidizing bacteria. In this study, to prevent biochemical corrosion of the sewer concrete, surface of the concrete was spread with liquefied organic and inorganic complex antibiotics and then its engineering properties such as water absorption coefficient, ratio of air permeability, chloride ion penetration depth and weight reduction ratio were investigated according to experimental factors.
부순모래 대체율에 따른 EEZ모래 콘크리트의 공학적 특성 및 내구특성에 관한 실험적 연구
박종호(Park Jong Ho),이동혁(Lee Dong heck),나철성(Na Chul Sung),김재환(Kim Jae Hwan),김규용(Kim Gyu Yong),김무한(Kim Moo Han) 한국구조물진단유지관리학회 2005 한국구조물진단학회 학술발표회논문집 Vol.9 No.2
Recently, Trouble of sand supply is occurred according to exhaustion of natural sand resources, therefore, various measures are proposed for solution of trouble of sand supply, also the government settled trouble of sand supply through application of EEZ sand and crushed sand, but because both EEZ sand and crushed sand are poor against general sand, they lead to lowering of Quality of ready-mixed" concrete. Therefore, this study evaluated engineering property and durability of concrete using EEZ sand and crushed sand and applied evaluation result to fundamental data for quality control of concrete using crushed sand and EEZ sand. The results of this study have shown that quality of concrete using EEZ sand independently is poor against general concrete, but, the workability, compressive strength and durability of concrete mixed crushed sand with EEZ sand can be similar in those of concrete used general sand.
부순모래 대체율에 따른 EEZ모래 콘크리트의 공학적 특성 및 내구특성에 관한 실험적 연구
박종호 ( Park Jong Ho ),이동혁 ( Lee Dong Heck ),나철성 ( Na Chul Sung ),김재환 ( Kim Jae Hwan ),김규용 ( Kim Gyu Yong ),김무한 ( Kim Moo Han ) 한국구조물진단유지관리공학회 2005 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.9 No.2
Recently, Trouble of sand supply is occurred according to exhaustion of natural sand resources, therefore, various measures are proposed for solution of trouble of sand supply, also the government settled trouble of sand supply through application of EEZ sand and crushed sand, but because both EEZ sand and crushed sand are poor against general sand, they lead to lowering of quality of ready-mixed concrete. Therefore, this study evaluated engineering property and durability of concrete using EEZ sand and crushed sand and applied evaluation result to fundamental data for quality control of concrete using crushed sand and EEZ sand. The results of this study have shown that quality of concrete using EEZ sand independently is poor against general concrete, but, the workability, compressive strength and durability of concrete mixed crushed sand with EEZ sand can be similar in those of concrete used general sand.