"This paper is the report of a feasibility study of the combined use of hydrated lime and portland cement to stabilize the troublesome Putnam soil of northern Missouri. In its natural state, this soil is highly plastic, possesses great shrinkage and swell characteristics when the moisture content is changed and is classified as an A-7-5 soil by the A. A. S. H. O. Standards for the Classification of Highway Subgrade Materials.
During the course of this investigation, the following tests were performed: (1) Moisture-Density Relationships for soil with admixtures; (2) Triaxial Compression Test; (3) Unconfined Compression Tests; (4) Freeze-Thaw Tests; and (5) Wet-Dry Tests. In the above tests, the following percentages of lime/cement admixtures were used: 2/6, 2/8, 2/10, 4/4, 4/6, 4/8, 4/10, 6/4, 6/6, 6/8, 8 /4, 8/6 and 10/4. In no case were more than fourteen percent total additive used to insure economy and practicality.
The results obtained showed the use of lime increases the friability and caused the soil to be flocculated, thus permitting easy mixing. The shrinkage and swell characteristics were virtually eliminated as were abnormal volume changes. Increases in the percent of constant lime additive generally reduced the unit weight.
The results of the Confined and Unconfined Compression Tests were erratic, but did show the structure of the soil was changed sufficiently to increase the internal angle of friction and cohesion to a range generally accepted for base course material.
The Freeze-Thaw and Wet-Dry Tests investigated the durability aspect of the soil with admixtures and showed that samples with as low as six percent lime and four percent cement by weight successfully withstood the complete twelve (12) cycle tests"--Abstract, pages 5-6.
Heagler, John B., 1924-1999
Davidson, Robert F., 1911-1971
Gevecker, Vernon A. C., 1909-1992
Civil, Architectural and Environmental Engineering
M.S. in Civil Engineering
Missouri School of Mines and Metallurgy
© 1960 John H. Kern, All rights reserved.
Thesis - Open Access
Soils -- Additives -- Testing
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Electronic OCLC #
Link to Catalog Record
Kern, John Henry, "A study of the feasibility of stabilizing Putman soil with hydrated lime and portland cement in combination" (1960). Masters Theses. 2795.