Expansive soils occurring in arid and semi-arid climate regions of the world
cause serious problems on civil engineering structures. Such soils swell when
given an access to water and shrink when they dry out. Several attempts are being
made to control the swell-shrink behavior of these soils. Soil stabilization using
chemical admixtures is the oldest and most widespread method of ground
improvement. In this study, waste limestone dust and waste dolomitic marble
dust, by-products of marble industry, were used for stabilization of expansive
soils. The expansive soil is prepared in laboratory as a mixture of kaolinite and
bentonite. Waste limestone dust and waste dolomitic marble dust were added to
the expansive soil with predetermined percentage of stabilizer varying from 0 to 30 percent. Grain size distribution, consistency limits, chemical and
mineralogical composition, swelling percentage, and rate of swell were
determined for the samples. Swelling percentage decreased and rate of swell
increased with increasing stabilizer percentage. Also, samples were cured for 7
days and 28 days before applying swell tests. Curing of samples affects swell
percentages and rate of swell in positive way.
| Identifer | oai:union.ndltd.org:METU/oai:etd.lib.metu.edu.tr:http://etd.lib.metu.edu.tr/upload/12610339/index.pdf |
| Date | 01 February 2009 |
| Creators | Baser, Onur |
| Contributors | Cokca, Erdal |
| Publisher | METU |
| Source Sets | Middle East Technical Univ. |
| Language | English |
| Detected Language | English |
| Type | M.S. Thesis |
| Format | text/pdf |
| Rights | To liberate the content for public access |
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