Basic study on application to Liquefied stabilized soils containing bassanite produced from waste plasterboard

• YAJIMA Juichi

  Department of Interdisciplinary Science and Engineering, Meisei University

• MUTO Yuu

  Nippon Concrete Industries Co., Ltd.

• KAMEI Takeshi

  Department of Civil and Environmental Engineering, Miyazaki University

Bibliographic Information

Other Title

• 廃石膏ボードから再生した半水石膏の流動化処理土への適用に関する基礎的研究

Abstract

It has been discussed recently what is the effective way to dispose of the waste plasterboard produced at the construction sites. The disposal method of construction generated soil is another issue to be discussed. In this study, as it was assumed that bassanite produced from waste plasterboard and construction generated soil could be effectively utilized through liquefied stabilization method, the flow properties with a flow test and the mechanical properties in unconfined and triaxial compression tests were examined in the liquefied stabilized soil made from Kanto loam, slag cement B-class, bassanite, and water. Furthermore, the leaching properties of hexavalent chromium, fluorine, and boron were examined, as it was assumed that application of liquefied stabilized soil into geo-environment could be utilized. The test results showed that the consistency properties were kept enough fluidity for an hour after mixture of the above mentioned materials and that the mechanical properties had unconfined compression strength by more than 200kN/m² in a certain condition of material mixture. In terms of the environment aspect, it proved that the leachated amount of hexavalent chromium, fluorine, and boron was complied with the environmental quality standards for soil pollution.

Journal

• Japanese Geotechnical Journal

  Japanese Geotechnical Journal 7 (4), 517-525, 2012

  The Japanese Geotechnical Society

Keywords

• bassanite
• liquefied stabilized soil
• flow test
• mechanical property
• geoenvironment

Details

• CRID: 1390001205256627072
• NII Article ID: 130004482911
• DOI: 10.3208/jgs.7.517
• ISSN: 18806341
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed