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CBS Dust 치환 콘크리트의 Durometer를 이용한 응결시간 추정
신세준 ( Sin Se-jun ),이혁주 ( Lee Hyuk-ju ),백승복 ( Baek Seung-bok ),현승용 ( Hyun Seung-yong ),신용섭 ( Shin Yong-sub ),한민철 ( Han Min-cheol ) 한국건축시공학회 2019 한국건축시공학회 학술발표대회 논문집 Vol.19 No.1
In this study, it was intended to confirm the possibility of using the Durometer in estimating the setting time by comparing the Proctor penetration resistance with the Durometer type A of hardness in concrete substituting CBS Dust. With the hardness of Durometer type A, it is expected to be used conveniently in the field of practice as it is determined to be about 18 HD for the initial determination and 31 HD for the end measurement.
매스콘크리트의 수화열 해석 및 현장 계측을 통한 수화발열량차 공법의 현장적용성
한준희 ( Han Jun-hui ),임군수 ( Lim Gun-su ),신세준 ( Shin Se-jun ),전충근 ( Jeon Choung-keun ),김종 ( Kim Jong ),한민철 ( Han Min-cheol ) 한국건축시공학회 2023 한국건축시공학회 학술발표대회 논문집 Vol.23 No.1
In this study, the hydration heat differential method was applied to mass concrete structures, and the hydration heat analysis was compared and analyzed with on-site measurement results. The results showed that the temperature history measurements of mass concrete were managed at a difference of 8.4°C, and although there was some deviation in thermal stress, a similar trend was observed. Consequently, it was determined that the thermal stress on the surface of mass concrete is less than its tensile strength, which would prevent the occurrence of thermal cracks.
수화발열량차 및 단열양생 공법을 활용한 매스콘크리트의 현장적용
한준희 ( Han Jun-hui ),임군수 ( Lim Gun-su ),신세준 ( Shin Se-jun ),전충근 ( Jeon Choung-keun ),김종 ( Kim Jong ),한민철 ( Han Min-cheol ) 한국건축시공학회 2023 한국건축시공학회 학술발표대회 논문집 Vol.23 No.1
This study is tocompare and analyze the results of hydration heat analysis and on-field measurements using the method with hydration heat difference and insulation curing method for controlling hydration heat in mass concrete. As a result of the analysis, the temperature difference between the center and the surface was predicted very similarly, and the mass concrete surface was controlled to a safe level when evaluating with a temperature crack index, and after being finished, it was confirmed that there was no hydration crack.
적산온도 기반의 무선센서 네트워크(CIMS)를 이용한 현장타설 슬래브 및 벽체 콘크리트의 압축강도 추정
김상민 ( Kim Sang-min ),신세준 ( Shin Se-jun ),서항구 ( Seo Hang-goo ),김종 ( Kim Jong ),한민철 ( Han Min-cheol ),한천구 ( Han Cheon-goo ) 한국건축시공학회 2020 한국건축시공학회 학술발표대회 논문집 Vol.20 No.1
In this study, the concrete compressive strength estimation system Concrete IoT Management System (hereinafter referred to as CIMS) was developed, and CIMS was applied to domestic field structure slabs and wall concrete to check whether CIMS is practically available and to estimate the accuracy of the initial strength estimation of concrete. As a result, it shows a very high correlation when the compressive strength of the specimen for structural management is compared with the estimated strength of CIMS in terms of integrated temperature, and it is expected to be gradually applied to domestic construction sites in the future.
적산온도 기반 무선센서 네트워크(CIMS)를 이용한 현장타설 콘크리트의 압축강도 추정
김상민 ( Kim Sang-min ),신세준 ( Shin Se-jun ),서항구 ( Seo Hang-goo ),김종 ( Kim Jong ),한민철 ( Han Min-cheol ),한천구 ( Han Cheon-goo ) 한국건축시공학회 2020 한국건축시공학회 학술발표대회 논문집 Vol.20 No.1
In this study, by applying the concrete compressive strength estimation system Concrete IoT Management System (hereinafter referred to as CIMS) to the concrete slab concrete in the domestic field, the purpose of this study is to confirm the practical use of CIMS and to verify the accuracy of estimating the initial strength of concrete. As a result, it shows a high correlation when the compressive strength and CIMS estimated strength of the specimen for structural management are converted and compared with the integrated temperature. However, in order to determine a more accurate experimental constant, it is necessary to consider the results up to 28 days.