| contributor author | Natalie M. Soule | |
| contributor author | Susan E. Burns | |
| date accessioned | 2017-05-08T21:27:13Z | |
| date available | 2017-05-08T21:27:13Z | |
| date copyright | April 2001 | |
| date issued | 2001 | |
| identifier other | %28asce%291090-0241%282001%29127%3A4%28363%29.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/52032 | |
| description abstract | This study quantified the effects of four quaternary ammonium cations (TMA, DTMA, HDTMA, and BTEA) on the mechanical properties of a modified Wyoming bentonite. TMA, DTMA, and HDTMA are organic cations with alkyl chains of lengths 1, 10, and 16 carbons, while BTEA has a benzyl ring attached. Substitution of the organic cations onto the bentonite surfaces altered the soil's behavior by: (1) reducing the soil's specific gravity, with the specific gravity decreasing linearly as the size of the exchanged organic cation was increased; (2) dramatically reducing the soil's liquid limit (from 458% for the unmodified bentonite to 52–65% for the organoclays); (3) reducing the compressibility of the clays (from a compression index of 5.5 for the unmodified bentonite to compression indices of 0.47–0.59 for the organoclays); (4) reducing the swell potential ( | |
| publisher | American Society of Civil Engineers | |
| title | Effects of Organic Cation Structure on Behavior of Organobentonites | |
| type | Journal Paper | |
| journal volume | 127 | |
| journal issue | 4 | |
| journal title | Journal of Geotechnical and Geoenvironmental Engineering | |
| identifier doi | 10.1061/(ASCE)1090-0241(2001)127:4(363) | |
| tree | Journal of Geotechnical and Geoenvironmental Engineering:;2001:;Volume ( 127 ):;issue: 004 | |
| contenttype | Fulltext | |