| Description |
vi, 91 leaves : illustrations, photographs ; 29 cm |
| Summary |
"This thesis is a study to determine the values and characteristics of modulus of elasticity and the modulus of rupture of a clay soil stabilized with lime and cement in an effort to pave the way for including these values in design criteria. The modulus of elasticity and the Poisson's ratio were obtained by sonic method. Specimens were broken in flexure for modulus of rupture. Experiments were performed with; (1) untreated soil, (2) soil with 4, 6, and 12 percent cement additive, (3) soil with a 3 percent lime additive and 0, 4, 6, and 12 percent cement additive, (4) soil with a 6 percent lime additive and 0, 4, 6, 8, and 12 percent cement additive, (5) soil with a 9 percent lime additive and 0, 4, 6, 8, and 12 percent cement additive. Effect of cement content, lime content, combined cement and lime content, and length of curing on the strength and elastic properties are shown. Modulus of elasticity of moist-cured specimens ranged from 0.65.10⁶ psi. to 2.26.10⁶ psi.; modulus of rupture ranged from 32 psi. to 300 psi. The strength and modulus of elasticity of all soil-cement-lime mixtures increased with an increase in cement and lime contents and with an increase in moist curing time. Poisson's ratio seemed to be independent of cement and lime contents and age of curing"--Abstract, leaf ii. |
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