Zobrazeno 1 - 10
of 134
pro vyhledávání: '"Hideaki Yasuhara"'
Autor:
Galih Bhekti Sula Pratama, Hideaki Yasuhara, Naoki Kinoshita, Heriansyah Putra, Abdullah Almajed, Satoru Fukugaichi, Zalfa Maulida Ihsani
Publikováno v:
International Journal of Geo-Engineering, Vol 15, Iss 1, Pp 1-22 (2024)
Abstract Calcium carbonate precipitation using a urease enzyme, referred to herein as Enzyme-Induced Carbonate Precipitation (EICP) is a technique for soil improvement. In this technique, a mixed solution composed of reagents and the urease enzyme, w
Externí odkaz:
https://doaj.org/article/a38aa57976d7444d95358681bc103be2
Publikováno v:
Case Studies in Construction Materials, Vol 20, Iss , Pp e02851- (2024)
Expansive soils are known as geotechnically problematic soils and represent a significant challenge for both civil engineering and geotechnical applications. The primary issue with expansive soils is their susceptibility to moisture-induced volume ch
Externí odkaz:
https://doaj.org/article/10923d6603614b049949dc605a7eedd1
Publikováno v:
International Journal of Geo-Engineering, Vol 14, Iss 1, Pp 1-18 (2023)
Abstract Soil is one of the most important construction materials in the world. It has been effectively exploited for various purposes, such as building social infrastructures, growing agricultural products, and promoting many other important activit
Externí odkaz:
https://doaj.org/article/895f451b04b34435a3f28e6ddc392235
Autor:
Naoki KINOSHITA, Hideaki YASUHARA
Publikováno v:
Journal of MMIJ, Vol 138, Iss 8, Pp 134-142 (2022)
EICP (Enzyme Induced Calcite Precipitation), which artificially precipitates calcium carbonate using urease purified from enzymes found in leguminous plants, is attracting attention as a ground improvement method with low environmental impact. Many m
Externí odkaz:
https://doaj.org/article/0995923cda644af7a0feb865c0eb2d7f
Publikováno v:
Journal of MMIJ, Vol 138, Iss 6, Pp 70-83 (2022)
It is obligatory to verify the performance of high-energy-absorbing pocket-type rockfall protection nets by full-scale experiments. While the performance verification by full-scale experiments can provide a practical evaluation, it requires a lot of
Externí odkaz:
https://doaj.org/article/200c4fa263204dbdb27ee86b18bf1ebf
Autor:
Naoki KINOSHITA, Hideaki YASUHARA
Publikováno v:
Journal of MMIJ, Vol 138, Iss 6, Pp 84-94 (2022)
The purpose of this study is to expand the application of wastepaper sludge ash (WPSA) as a construction material. The strength and thermal conductivity of WPSA solidified by hydration reaction were investigated for use as a ground improvement solidi
Externí odkaz:
https://doaj.org/article/ff0a1b8abc854d9ba25e9d13d92ba6be
Publikováno v:
Soils and Foundations, Vol 62, Iss 6, Pp 101207- (2022)
The aim of the current study was to establish a validated numerical model for addressing the changes in permeability and reactive transport behavior within rock fractures based on the fluid pH under coupled thermal-hydraulic-mechanical-chemical (THMC
Externí odkaz:
https://doaj.org/article/5cfa99e10d4449698d39ad15f77de7ee
Publikováno v:
Journal of the Civil Engineering Forum, Vol 7, Iss 1, Pp 59-70 (2021)
The effect of using soybean as a catalyst in the Enzyme-Mediated Calcite Precipitation (EMCP) method of crack healing concrete is discussed in this research. The existence of cracks in concrete reduces its quality, therefore, there is the need for re
Externí odkaz:
https://doaj.org/article/5397444b9d914d75b7d1ec82d8f6597e
Publikováno v:
Civil Engineering Dimension, Vol 20, Iss 2, Pp 91-95 (2018)
Several methods have been established for their various potential applications as soil improvement technique, and recently the application of grouting technique using biological process have been proposed. This study discussed the applicability of en
Externí odkaz:
https://doaj.org/article/02b6d825f3cf4d7f8fbc49dbc84edc04
Publikováno v:
Civil Engineering Dimension, Vol 22, Iss 1 (2020)
The applicability of bio-chemical grouting as the environmentally friendly and economically method for liquefaction remediation was evaluated. Several combinations of organic and in-organic precipitations methods were conducted to obtain the optimum
Externí odkaz:
https://doaj.org/article/6c86424cff0e4915a1f2c02abee4d90d