COMPACTION CHARACTERISTICS AND CBR VALUES OF COMPACTED SAND UTILIZING BASSANITE -RECYCLING OF WASTE PLASTERBOARD-

• 亀井 健史

  宮崎大学 工学部社会環境システム工学科

• 志比 利秀

  島根大学大学院 総合理工学研究科地球資源環境学領域

• 塚本 真希

  西日本高速道路エンジニアリング中国（株）

• 伊藤 哲男

  西日本高速道路（株） 関西支社

• 出口 宗浩

  西日本高速道路（株） 中国支社

Bibliographic Information

Other Title

• 半水石膏を添加した締固め土の締固め特性とCBR値－廃石膏ボードのリサイクル－

Abstract

 The present situation in waste plasterboard disposal looks bleak due to a shift to the controlled disposal of waste plasterboard, an increase in the amount of discharged waste plasterboard, and other factors. To reduce the volume of waste plasterboard disposal, this paper investigates utilization in subgrade soil of bassanite reproduced from waste plasterboard. CBR tests of sands compacted with both 0-40% bassanite and 5% blast furnace slag cement (B type) were carried out. Optimum water content increased with increasing bassanite/soil (B/S) ratio. Maximum dry density fell at B/S ratio of 40%, but increased up to B/S ratio of 20%. The CBR value was the maximum at the optimum water content, at all B/S ratios. The CBR values at the optimum water content increased with increasing B/S ratio. Consequently, addition of a large volume of recycled bassanite to ground can create lightweight ground with large CBR values.

Journal

• Journal of Japan Society of Civil Engineers, Ser. C (Geosphere Engineering)

  Journal of Japan Society of Civil Engineers, Ser. C (Geosphere Engineering) 68 (3), 466-474, 2012

  Japan Society of Civil Engineers

Keywords

• bassanite
• CBR value
• compaction characteristics
• waste plasterboard

Details

• CRID: 1390282680332212352
• NII Article ID: 130004559386
• DOI: 10.2208/jscejge.68.466
• BIBCODE: 2012JSCGE..68..466K
• ISSN: 21856516
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed