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008			241197 th eng
035			_a.b10631847
099		9	_aAIT Thesis no. 203
100	1		_aLazaro, Rogelio Cruz
245	1	0	_aStabilization of clayey soils with lime-rice hull ash admixtures
260			_aBangkok : _bAsian Institute of Technology, _c1968
300			_a85 p.
490	1		_aThesis ; _vno. 203
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, 1968
520			_aThis thesis presents a preliminary evaluation of using rice hull ash, in conjunction with lime, to stabilize two clayey soils from the deltaic regions of Thailand and the Philippines. Effects of soil properties, amount of lime-ash admixture, ratio of lime to ash, curing time and artificial weathering test (wet-dry cycles)on the strength development of the stabilized soils are reported. Results showed that the response to lime-ash stabilization of the two clayey soils studied, viz. Bangkok Clay (TH)and Maligaya Clay (PH),is promising, and could be considered feasible. There are indications that factors affecting soil-lime and/or soil-lime-fly ash, and soil-lime rice hull ash stabilization are similar, all these stabilized systems appear to behave in a likely manner in modifying the physicochemical characteristics of clayey soils. The minimum amount of lime (with rice hull ash)required, to develop a 7-day immersed unconfined compressive strength of 150 .lb per sq in. or greater, ranges from 3 to 5 per cent, which is considerably lower than that needed in lime (alone) stabilization to produce equivalent strength values. Longer curing period was found to be beneficial to strength development of lime-rice hull ash stabilized soil.
650	1	0	_aLiming of soils
650	1	0	_aSoil stabilization
700	1		_aMoh, Za-Chieh, _eChairperson
700	1		_aMackey, Robert D., _eExamination Committee
700	1		_aChai Muktabhant, _eExamination Committee
810	2		_aAsian Institute of Technology. _tThesis ; _vno. 203
856			_3Full-Text _uhttp://203.159.5.9/ait-thesis/detail.php?q=B24540
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