Stabilization of Expansive Clays Using Granulated Blast Furnace Slag (GBFS) and GBFS-Cement |
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| Authors: | Erdal Cokca Veysel Yazici Vehbi Ozaydin |
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| Institution: | (1) Department of Civil Engineering, Middle East Technical University, 06531 Ankara, Turkey;(2) Design and Construction Department, State Hydraulic Works (DSI), 06100 Ankara, Turkey;(3) Present address: Faculty of Engineering, School of Civil and Mining Engineering, University of Wollongong, Northfields Avenue, Wollongong, NSW, 2522, Australia;(4) Soil Mechanics Laboratory, State Hydraulic Works (DSI), Ankara, Turkey |
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| 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 GBFS-cement (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. |
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| Keywords: | Expansive soil Granulated blast furnace slag Granulated blast furnace slag cement Leachate analysis Soil stabilization Swelling potential |
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