Investigation of Soil Suction in a Compacted Low-plasticity Clay
| dc.contributor.advisor | Mohammed (Mo) Gabr, Committee Member | en_US |
| dc.contributor.advisor | Roy H. Borden, Committee Chair | en_US |
| dc.contributor.advisor | Shamimur Rahman, Committee Member | en_US |
| dc.contributor.author | Rorie, Dennis E | en_US |
| dc.date.accessioned | 2010-04-02T17:59:05Z | |
| dc.date.available | 2010-04-02T17:59:05Z | |
| dc.date.issued | 2006-12-08 | en_US |
| dc.degree.discipline | Civil Engineering | en_US |
| dc.degree.level | thesis | en_US |
| dc.degree.name | MS | en_US |
| dc.description.abstract | The purpose of this research is to investigate soil suction in low density silty sands. Research has been performed to develop the Soil Water Characteristic Curves for both the drying and wetting phases. The research attempts to mimic the behavior of partially saturated soil compacted at various degrees of as-compacted water contents and with varying compactive efforts. Pressure plate tests (ASTM D 6836-02) were conducted on compacted specimens (brown silty-soil classified as a low plasticity clay,CL according to USCS) with as-compacted water contents of 4.8% and 11.6%, and as-compacted dry densities of 1.60 Mg⁄m3 and 1.78 Mg⁄m3. Specimens were tested under 0 and 100 kPa overburden pressure. Results showed that the air-entry value increased with increasing as-compacted water content and overburden pressure, respectively. Filter paper tests (ASTM 5298-03) for determining the matric suction were performed on compacted specimens ranging in as-compacted water content and dry density from 4.7% to 22%, and 1.53 Mg/m3 to 1.90 Mg⁄m3, respectively. Results showed that the matric suction was influenced more by the as-compacted water content then the as-compacted dry density. Collapse potential (ASTM D 5333-03) tests were conducted on specimens prepared to the same water contents and dry densities as the filter paper tests. Data showed that the collapse potential increases with decreasing as-compacted water content, and relative compaction due the change in structure that occurs from change in compaction conditions | en_US |
| dc.identifier.other | etd-08192006-103140 | en_US |
| dc.identifier.uri | http://www.lib.ncsu.edu/resolver/1840.16/879 | |
| dc.rights | I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to NC State University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report. | en_US |
| dc.subject | collapse | en_US |
| dc.subject | soil water characteristic curve | en_US |
| dc.subject | Suction | en_US |
| dc.subject | pressure plate | en_US |
| dc.subject | filter paper | en_US |
| dc.title | Investigation of Soil Suction in a Compacted Low-plasticity Clay | en_US |
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