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Featured researches published by Motoyuki Asada.


MRS Proceedings | 2006

Field Test of Ethanol/Bentonite Slurry Grouting into Rock Fracture

Motoyuki Asada; Hitoshi Nakashima; Takashi Ishii; Sumio Horiuchi

Crystalline rocks have fractures which may cause unexpected routes of groundwater seepage. Cement grouting is one of the most effective methods to minimize seepage; however, cement materials may not be suitable for the purpose of extra-long durability, because cement is neutralized or degraded by chemical and physical influence of chemical reaction. Natural clay like bentonite is one of the most promising materials for seepage barrier; however, water/bentonite grout is so viscous that enough amount of bentonite can not be grouted into rock fractures. To increase bentonite content in grout with low viscosity, the utilization of ethanol as a mixing liquid was studied. Ethanol suppresses bentonite swelling, and more bentonite can be injected more than that of water/bentonite slurry. In this paper, grouting into in-situ rock mass fracture from the ground surface was tested to investigate the barrier performance and workability of ethanol/bentonite slurry as a grouting material.


Archive | 2009

Navigation system for operation of air conditioning heat source machine

Motoyuki Asada; Masaaki Go; Yutaka Hayashi; Minoru Kawashima; Katsuhiro Kobayashi; Yoshiaki Kokubo; Kimihiko Koori; Mineo Kudo; Nobuo Kyoya; Junzo Mabuchi; Koji Murakami; Kazuto Nakamura; Takuji Nakamura; Noriyuki Odajima; Yoshifumi Oi; Hiroichi Sato; Kazuhiro Sato; Michiya Suzuki; Yuji Tsuji; Akihiro Yagawa; Hajime Yamaguchi; Katsuyoshi Yokoi; 卓司 中村; 和人 中村; 伸雄 京屋; 博一 佐藤; 和浩 佐藤; 慶史 多井; 吉章 小久保; 勝広 小林


Environmental Science & Technology | 2016

Vaporization Mechanisms of Water-Insoluble Cs in Ash During Thermal Treatment with Calcium Chloride Addition

Facun Jiao; Norie Iwata; Norikazu Kinoshita; Masato Kawaguchi; Motoyuki Asada; Maki Honda; Keisuke Sueki; Yoshihiko Ninomiya


Archive | 2004

Paper sludge treatment method

Motoyuki Asada; Sumio Horiuchi; Hiroyasu Tsutsumi; 澄夫 堀内; 博恭 堤; 素之 浅田


Chemical Engineering Journal | 2017

Role of CaCl2 and MgCl2 addition in the vaporization of water-insoluble cesium from incineration ash during thermal treatment

Facun Jiao; Norikazu Kinoshita; Masato Kawaguchi; Motoyuki Asada; Maki Honda; Keisuke Sueki; Yoshihiko Ninomiya


MRS Proceedings | 2006

Experimental Study on the Mechanism of Ethanol/Bentonite Slurry Grouting

Takashi Ishii; Kengo Iwasa; Tomonari Shiraishi; Akira Saito; Hitoshi Nakashima; Motoyuki Asada; Hiroyoshi Ueda; Yasushi Sakabe


Archive | 2001

Construction method and repair method of underground facility having a water-tight structure

Motoyuki Asada; Sumio Horiuchi; Taku Ishii; 澄夫 堀内; 素之 浅田; 卓 石井


Archive | 2000

METHOD OF WASHING DIOXIN-POLLUTED MEMBER

Motoyuki Asada; Sumio Horiuchi; Masato Kawaguchi; Takao Take; 澄夫 堀内; 正人 川口; 高男 武; 素之 浅田


Archive | 2007

System for water purification and rearing living aquatic resources by utilizing floating body

Motoyuki Asada; Sumio Horiuchi; Sotaro Yonemura; 澄夫 堀内; 素之 浅田; 惣太郎 米村


Fuel | 2018

Enhancement of Cs vaporization from simulated granular ash through thermal treatment in N2 atmosphere with the addition of a mixture of CaCl2 and CaO

Facun Jiao; Norikazu Kinoshita; Masato Kawaguchi; Motoyuki Asada; Maki Honda; Keisuke Sueki; Yoshihiko Ninomiya

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Dmitry Sergeev

Forschungszentrum Jülich

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