The potential utilization of sediment of river in hydrothermal solidification process

Z. Jing, F. Jin, N. Yamasaki, E. H. Ishida

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Solidification of sediment of river has been carried out using a hydrothermal processing method, in which the sediment was first compacted in a mold at 20 MPa, and then hydrothermally cured in an autoclave under saturated steam pressure at 200 °C for 12 hrs. The riverbed sediment could be solidified hydrothermally with tobermorite formation, and the addition of slaked lime was favorable to tobermorite formation. The strength development of the solidified specimen depended on amount of tobermorite formed, and the more the tobermorite, the higher the strength. At addition of slaked lime 20-40 mass%, the flexural strength was about 23 MPa, which could be used as construction materials. As such, the hydrothermal processing method may have a high potential of utilization of riverbed sediments as construction materials.

Original languageEnglish
Title of host publicationWATER DYANMICS
Subtitle of host publication4th International Workshop on Water Dynamics
Pages197-200
Number of pages4
DOIs
Publication statusPublished - 2007 May 11
Event4th International Workshop on Water Dynamics - Sendai, Japan
Duration: 2006 Nov 72006 Nov 8

Publication series

NameAIP Conference Proceedings
Volume898
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other4th International Workshop on Water Dynamics
CountryJapan
CitySendai
Period06/11/706/11/8

Keywords

  • Hydrothermal solidification processing
  • Sediment of river
  • Tobermorite

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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