Expansive soils are a worldwide problem that poses several challenges for civil
engineers. Such soils swell when given an access to water and shrink when they
dry out. The most common and economical method for stabilizing these soils is
using admixtures that prevent volume changes. In this study the effect of using
Bigadic zeolite (boron by-product) in reducing the swelling potential is examined.
The expansive soil is prepared in the laboratory by mixturing kaolinite and
bentonite. Bigadic zeolite (boron by-product) is added to the soil at 0 to 25 percent
by weight. Grain size distribution, Atterberg limits and swell percent and rate of
swell of the mixtures are determined. Specimens are cured for 7 and 28 days. As a
result of the experimental study, it was seen that addition of Bigadic zeolite (boronby-product) decreased swelling potential and rate of swell of the artificially
prepared expansive soil specimen at laboratory conditions. The swell percentage
and rate of swell of the stabilized specimens are affected positively by curing.
| Identifer | oai:union.ndltd.org:METU/oai:etd.lib.metu.edu.tr:http://etd.lib.metu.edu.tr/upload/12610671/index.pdf |
| Date | 01 June 2009 |
| Creators | Demirbas, Gunes |
| 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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