Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Kyung-Taek Koh"'
Autor:
Yong-Sik Yoon, Seung-Jun Kwon, Kyong-Chul Kim, YoungSeok Kim, Kyung-Taek Koh, Won-Young Choi, Kwang-Mo Lim
Publikováno v:
Materials, Vol 16, Iss 23, p 7459 (2023)
In this study, accelerated chloride diffusion tests are performed on ordinary Portland cement (OPC), ground granulated blast furnace slag (GGBFS), and fly ash (FA) concretes aged 4–6 years. Passed charge is evaluated according to ASTM-C-1202 for 12
Externí odkaz:
https://doaj.org/article/733a1d2e1c474400a90a74a70672e844
Autor:
Haena Kim, Byungkyu Moon, Xinyu Hu, Hosin (David) Lee, Gum-Sung Ryu, Kyung-Taek Koh, Changbin Joh, Byung-Suk Kim, Brian Keierleber
Publikováno v:
Infrastructures, Vol 6, Iss 9, p 121 (2021)
The application of Ultra-High-Performance Concrete (UHPC) materials in rehabilitating bridges and constructing primary bridge components is increasing rapidly across the world because of their superior strength and durability characteristics when com
Externí odkaz:
https://doaj.org/article/e2413a407a3e4f59abaa8c9045906a79
Publikováno v:
Materials, Vol 14, Iss 6, p 1437 (2021)
Although carbon textile reinforcement widely used to replace the steel reinforcing bars but the bonding strength of carbon textile is generally much smaller than that of common steel bars. This study examines the strengthening effect of concrete slab
Externí odkaz:
https://doaj.org/article/e9e2bb220fad4716844d0ee57d87ff18
Publikováno v:
Materials, Vol 13, Iss 19, p 4432 (2020)
This study investigated the hardening process of alkali-activated material (AAM) mortar using calcium sulfoalumiante (CSA) expansive additive (CSA EA), which accelerates the initial reactivity of AAMs, and subsequent changes in ultrasonic pulse veloc
Externí odkaz:
https://doaj.org/article/cd6a19493aa341059b14cef28d07619b
Publikováno v:
Materials, Vol 13, Iss 17, p 3856 (2020)
Textile reinforced concrete (TRC) has widely been used for strengthening work for deteriorated reinforced concrete (RC) structures. The structural strengthening often requires accelerated construction with the aid of precast or prefabricated elements
Externí odkaz:
https://doaj.org/article/227d4c0fb4254ed38c155a4c2170c71c
Publikováno v:
Materials, Vol 13, Iss 10, p 2246 (2020)
This paper deals with flexural strengthening of reinforced concrete (RC) slabs with a carbon textile reinforced concrete (TRC) system. The surface coating treatment was applied to a carbon grid-type textile to increase the bond strength. Short fibers
Externí odkaz:
https://doaj.org/article/d67c081bb82349578b179188aeb85207
Publikováno v:
Materials, Vol 8, Iss 3, Pp 1213-1229 (2015)
Ground granulated blast furnace slag is widely used as a mineral admixture to replace partial Portland cement in the concrete industry. As the amount of slag increases, the late-age compressive strength of concrete mixtures increases. However, after
Externí odkaz:
https://doaj.org/article/ae83b2ae9fe2433faaf8fc07daf66253
Publikováno v:
Nuclear Engineering and Technology, Vol 45, Iss 3, Pp 393-400 (2013)
Concrete undergoing early frost damage in cold weather will experience significant loss of not only strength, but also of permeability and durability. Accordingly, concrete codes like ACI-306R prescribe a minimum compressive strength and duration of
Externí odkaz:
https://doaj.org/article/aa92fc3a11204496bf5b6a5d7d55f5c4
Publikováno v:
Advances in Materials Science and Engineering, Vol 2016 (2016)
Ground granulated blast furnace slag, which is a byproduct obtained during steel manufacture, has been widely used for concrete structures in order to reduce carbon dioxide emissions and improve durability. This paper presents a numerical model to ev
Externí odkaz:
https://doaj.org/article/3bba449e25b040de98c6da57297168c8
Autor:
Yong-Sik, Yoon, Hwa-Sung, Ryu, Hee-Seob, Lim, Kyung-Taek, Koh, Jeong-Su, Kim, Seung-Jun, Kwon
Publikováno v:
In Construction and Building Materials 20 October 2018 186:1005-1015