Stabilization of Expansive Clays Using Granulated Blast Furnace Slag (GBFS) and GBFS-Cement


ÇOKÇA E., Yazici V., Ozaydin V.

GEOTECHNICAL AND GEOLOGICAL ENGINEERING, vol.27, no.4, pp.489-499, 2009 (ESCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 27 Issue: 4
  • Publication Date: 2009
  • Doi Number: 10.1007/s10706-008-9250-z
  • Journal Name: GEOTECHNICAL AND GEOLOGICAL ENGINEERING
  • Journal Indexes: Emerging Sources Citation Index (ESCI), Scopus
  • Page Numbers: pp.489-499
  • Keywords: Expansive soil, Granulated blast, furnace slag, Granulated blast furnace slag cement, Leachate analysis, Soil stabilization, Swelling potential
  • Middle East Technical University Affiliated: Yes

Abstract

Expansive clays undergo swelling when subjected to water. This can cause damage, especially to light weight structures, water conveyance canals, lined reservoirs, highways, and airport runways unless appropriate measures are taken. In this study, granulated blast furnace slag (GBFS) and GBFScement (GBFSC) were utilized to overcome or to limit the expansion of an artificially prepared expansive soil sample (sample A). GBFS and GBFSC were added to sample A in proportions of 5-25% by weight. The effects of these stabilizers on grain size distribution, Atterberg limits, swelling percentage and rate of swell of soil samples were determined. GBFS and GBFSC were shown to successfully decreasing the total amount of swell while increasing the rate of swell.