Effects of cyclic drying and wetting on strength and stiffness properties of chemically stabilized sulfate-rich expansive clay
- 出版日期：2002.
- 页数：112 p. :
- 第一责任说明：Phayak Takkabutr.
- 分类号：a478 ; a390
- ISBN：049384905X(ebk.) :
MARC全文
02h0025732 20111011143148.0 cr un||||||||| 111011s2002 xx ||||f|||d||||||||eng | AAI1410974 049384905X(ebk.) : CNY371.35 NGL NGL NGL a478 ; a390 Takkabutr, Phayak. Effects of cyclic drying and wetting on strength and stiffness properties of chemically stabilized sulfate-rich expansive clay [electronic resource] / Phayak Takkabutr. 2002. 112 p. : digital, PDF file. Source: Masters Abstracts International, Volume: 41-02, page: 0586. ; Supervisor: Laureano R. Hoyos. Thesis (M.S.C.E.)--The University of Texas at Arlington, 2002. A series of unconfined compressive strength (UCS, ASTM D 2166), unconsolidated undrained triaxial (UU, ASTM D 2850), and resonant column (RC, ASTM D 4015-92) tests were conducted on several chemically stabilized specimens of high-plasticity, sulfate-rich expansive clay from southeast Arlington, Texas. Test results were used to assess the influence of cyclic drying and wetting on strength and stiffness properties of treated soil. Specimens were tested for different stabilized types, stabilizer dosages, compaction moisture contents, and number of drying-wetting cycles.;In this work, three novel chemical stabilizers were used: (1) Sulfate resistant “Type V” cement, (2) Low calcium “Class F” fly ash, and (3) Lime mixed with polypropylene fibers. Soil's strength and stiffness properties investigated include unconfined compressive strength (qu), undrained shear strength (su), dynamic shear modulus (G), and material damping ratio (D). An 8%-by-weight dosage of lime, mixed with 0.3%-by-weight polypropylene fibers, appears to yield best soil performance under cyclic drying and wetting. Soil mechanics. ; Swelling soils. Electronic books. aeBook. aCN bNGL http://proquest.calis.edu.cn/umi/detail_usmark.jsp?searchword=pub_number%3DAAI1410974&singlesearch=no&channelid=%CF%B8%C0%C0&record=1 NGL Bs1029 rCNY371.35 ; h1 bs1108