Construction of seabed structures by new development covering material using fly ash

Hideki Shimada, Takashi Sasaoka, Shuichi Fujita, Sugeng Wahyudi, Yasuhiro Yoshida

Research output: Contribution to journalArticle

Abstract

In recent years, many seabed structure materials are needed for extraction of methane hydrate and submarine hydrothermal polymetallic ore in Japan. Although covering material is required to make the protection disturbance for environmental issues at seabed, it has high mobility, and does not bleed, etc. after construction. Therefore, a construction material which uses a material mixture of the surface-active agent with fly ash was developed. Usage of fly ash instead of cement leads to improved mobility, reduced construction cost and so on. In considering these points, in order to clarify to what degree the contents of surfactant affects the properties of the injected fly ash mixture into the construction of seabed structures, different combinations of fly ash, surfactant and water were considered by means of multiple experiments.

Original languageEnglish
Pages (from-to)143-151
Number of pages9
JournalInzynieria Mineralna
Volume17
Issue number1
Publication statusPublished - Jan 1 2016

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Coal Ash
Fly ash
fly ash
Surface-Active Agents
Surface active agents
surfactant
Methane
Hydrates
environmental issue
Ores
Cements
cement
methane
disturbance
material
Water
cost
Costs
experiment
Experiments

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology
  • Geochemistry and Petrology

Cite this

Construction of seabed structures by new development covering material using fly ash. / Shimada, Hideki; Sasaoka, Takashi; Fujita, Shuichi; Wahyudi, Sugeng; Yoshida, Yasuhiro.

In: Inzynieria Mineralna, Vol. 17, No. 1, 01.01.2016, p. 143-151.

Research output: Contribution to journalArticle

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