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초지연 콘크리트의 타설 범위가 시공줄눈 일체화 성능에 미치는 영향
정준택 ( Jeong Jun-taek ),김수호 ( Kim Soo-ho ),정영진 ( Jeong Yeong-jin ),현승용 ( Hyun Seung-yong ),김종 ( Kim Jong ),한민철 ( Han Min-cheol ) 한국건축시공학회 2023 한국건축시공학회 학술발표대회 논문집 Vol.23 No.1
This study attempted to derive an appropriate application range by reviewing the integration performance of joints according to the application range of SRA concrete. As a result, it was confirmed that the integration performance was improved even if SRA concrete was placed only by 75mm, which is 0.5 times the thickness of the member.
플라이애시를 사용한 초지연 콘크리트의 타설범위가 시공줄눈의 수밀성 및 쪼갬인장강도에 미치는 영향
정준택 ( Jeong Jun-taek ),박재웅 ( Jeong Yeong-jin ),정영진 ( Park Jae-woong ),임군수 ( Lim Gun-su ),김종 ( Kim Jong ),한민철 ( Han Min-cheol ) 한국건축시공학회 2023 한국건축시공학회 학술발표대회 논문집 Vol.23 No.2
This study attempted to derive an appropriate application range by reviewing the integration performance of joints according to the application range of SRA concrete. As a result, it was confirmed that the integration performance was improved even if SRA concrete was placed only by 75mm, which is 0.5 times the thickness of the member.
콜드조인트 일체화를 위한 초지연 콘크리트의 적정 타설 범위 도출
정준택 ( Jeong Jun-taek ),김수호 ( Kim Soo-ho ),정영진 ( Jeong Yeong-jin ),현승용 ( Hyun Seung-yong ),김종 ( Kim Jong ),한민철 ( Han Min-cheol ) 한국건축시공학회 2023 한국건축시공학회 학술발표대회 논문집 Vol.23 No.1
This study attempted to derive an appropriate application range by reviewing the integration performance of joints according to the application range of SRA concrete. As a result, it was confirmed that the integration performance was improved even if SRA concrete was placed only by 75mm, which is 0.5 times the thickness of the member.
한국과 중국의 한중 콘크리트 표준시방서의 보온양생 규정 비교
후윈야오 ( Hu Yun-yao ),정준택 ( Jeong Jun-taek ),임군수 ( Lim Gun-su ),한준희 ( Han Jun-hui ),김종 ( Kim Jong ),한민철 ( Han Min-cheol ) 한국건축시공학회 2023 한국건축시공학회 학술발표대회 논문집 Vol.23 No.2
In this paper, standard specification of heat curing section of cold weather concrete between Korea and China were compared. First, Korea concrete specification (KCS 14 20 40) stipulates that the application period is less than 4℃ per day or less than 0℃ per day right after pouring, but in China, the outdoor daily average temperature is less than 5℃ for five consecutive days. This is believed to be due to the difference in temperatures between Korea and China in winter. Next, in the case of Korea, KCS do not show that the concrete temperature in curing should be 5℃ or higher to prevent early frost damage and obtain the minimum required compressive strength. On the other hand, in the case of China, the specificaion does not show that the curing method is selected based on the concrete surface coefficient after considering the outdoor temperature. In addition, in Korea and China regulation, the temperature of the space during thermal curing was shown to be similar.
하이브리드 미터를 이용한 양생조건에 따른 응결 및 압축강도 추정 Estimation
박재웅 ( Park Jae-woong ),정준택 ( Jeong Jun-taek ),임군수 ( Lim Gun-su ),한준희 ( Han Jun-hui ),김종 ( Kim Jong ),한민철 ( Han Min-cheol ) 한국건축시공학회 2023 한국건축시공학회 학술발표대회 논문집 Vol.23 No.2
This study aimed to evaluate a feasibility of estimating setting time and compressive strength of curing conditions using a Hybrid meter. As a result, It was determined that the measured hardness value at the initial set, final set and at 5MPa of the Hybrid meter were not affected by curing conditions. And the Hybrid meter(A) is confirmed to have a higher correlation, so it is judged to be more suitable for pratical use.