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035 _a.b10205810
099 9 _aAIT Thesis no. 512
100 1 _aRoque, Ernesto C.
245 1 0 _aDilatational characteristics of sedimented kaolinite
260 _aBangkok :
_bAsian Institute of Technology,
_c1973
300 _a79 p.
490 1 _aThesis ;
_vno. 512
500 _aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering at the Asian Institute of Technology, Bangkok, Thailand.
502 _aThesis (M.Eng.) - Asian Institute of Technology, 1973
520 _aA study of the effect of soil structure on dilatation was carried out on an artificially sedimented kaolinite clay. Various soil structures were produced by the use of different pore fluids i.e. distilled waters, sodium chloride and sodium hexametaphosphate. Conventional isotropically consolidated undrained triaxial compression tests with pore pressure measurements and oedometer tests were conducted in the investigation. In the oedometer tests, two samples for each soil were consolidated anisotropically at 320 psi and then rebounded at unloading ratios of 1.5 and 3.0 respectively. In the triaxial tests, the samples for different soil structures were first consolidated to a maximum past pressure of 120 psi and then allowed to swell under smaller consolidation pressures prior to shear. It was observed that the magnitude of rebound decrements did not affect appreciably the stored strain energy. The strength of the bonds and the tendency of the soil to dilate increased with higher over consolidation ratios. The greater the amount of locked in strain 'energy released after failure of interparticle bonds, the greater would be the tendency of the soil to dilate. Furthermore, it was observed that the dispersed soil, with weaker bonds, exhibited slightly greater tendency to dilate than those of the flocculated soils.
650 0 _aClay
650 0 _aSoil structure
650 0 _aSoil mechanics
700 1 _aNelson, John D.,
_eChairperson
700 1 _aChai Muktabhant,
_eExamination Committee
700 1 _aPetersen, Jens L.,
_eExamination Committee
710 2 _a United Kingdom,
_eScholarship Donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. 512
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B24250
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