Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Jae-Heum Moon"'
Publikováno v:
International Journal of Concrete Structures and Materials, Vol 18, Iss 1, Pp 1-17 (2024)
Abstract In an explosion test using a shock tube, the behavior of pressure waves can be reproduced with high reliability. However, the explosion in a shock tube occurs in a confined space. It is difficult to predict the behavior of pressure waves and
Externí odkaz:
https://doaj.org/article/ac3098655cb94c3fb1f9b5c376b22c5a
Autor:
Won-Woo Kim, Jae-Heum Moon
Publikováno v:
International Journal of Concrete Structures and Materials, Vol 17, Iss 1, Pp 1-10 (2023)
Abstract This study evaluated the setting time, mechanical properties and microstructure of Portland cement (OPC) by adding SiO2 nano- and micro-particles. The setting time was reduced due to the pozzolanic reaction of the nano- and micro-SiO2, and t
Externí odkaz:
https://doaj.org/article/ec3b8a8581c647c799d2bc9ae75b1a76
Publikováno v:
Case Studies in Construction Materials, Vol 18, Iss , Pp e01909- (2023)
This study investigated the hydration of nano-silica-incorporated cement paste using multiphase voxels in the developed CEMHYD3D model. Multiphase voxels were firstly proposed to be able to consider the effects of nano particles on cement hydration p
Externí odkaz:
https://doaj.org/article/4376c6a3a0ae465bb4df8314ebc3d3e4
Autor:
Won-Woo Kim, Jae-Heum Moon
Publikováno v:
Buildings, Vol 13, Iss 12, p 3085 (2023)
Silicate-based nano- and micro-sized binders were used with ordinary Portland cement to evaluate their influence on the setting time, activation energy, mechanical properties, and microstructure. It was found that the setting time was reduced due to
Externí odkaz:
https://doaj.org/article/59abaa863cd24170a35f8135e572372e
Publikováno v:
Materials, Vol 16, Iss 21, p 6880 (2023)
The development of high-performance concrete using carbon nanotubes (CNTs), which is used in various industries owing to its excellent mechanical properties, has attracted much attention, leading to ongoing research in this area. However, when mixing
Externí odkaz:
https://doaj.org/article/d7e946608fde47a3a83ec20aaefd3bc8
Publikováno v:
Materials, Vol 14, Iss 24, p 7764 (2021)
In this study, we experimentally analyzed the deformation shape of stacked layers developed using three-dimensional (3D) printing technology. The nozzle traveling speed was changed to 80, 90, 100, and 110 mm/s when printing the layers to analyze its
Externí odkaz:
https://doaj.org/article/d4a65f18b34e44eeb5958e61abbe0a6e
Publikováno v:
Materials, Vol 14, Iss 21, p 6278 (2021)
Three-dimensional concrete printing (3DCP) materials require a relatively low water-to-binder ratio (W/B) of 0.3 or less to ensure their buildability and flow properties are sufficiently maintained after mixing. In this study, the rheological propert
Externí odkaz:
https://doaj.org/article/0816caa93f144e3baeb85ee33f5fd3b0
Publikováno v:
Journal of the Computational Structural Engineering Institute of Korea. 35:333-342
Publikováno v:
Construction and Building Materials. 384:131333
Publikováno v:
Journal of the Computational Structural Engineering Institute of Korea. 33:339-349