Ataollah and Afshin
Greener Journal of Science, Engineering and Technological Research Vol. 3 (4), pp. 110-117, April 2013.
ISSN: 2276-7835 © 2011 Greener Journals
Studying Increase in Strength of Clays by Including Calcium Chloride Solution
*Ataollah Abdollazadeh and Afshin Sedaghat
Department of Civil Engineering, University of Guilan, Rasht, Iran.
*Corresponding Author’s Email: maziyarniyakan @gmail. com
Increase of mechanical strength of fine-grained soils has been considered by the researcher to achieve different goals and stabilize landslides. Use of Calcium Chloride Solution (CaCl2) is a new method through which calcium chloride solution leaves free ion of calcium while passing through soil. Ion of calcium associates soil particles through Pozzolana reaction or by absorbing cation in double clay layer. In this paper, clay strengthening method and effect of the above solution on increase of mechanical strength of clay and improvement of its bearing capacity are studied by performing laboratory tests. A series of clay sample was prepared as a rectangular cube with grading and given density. The samples were affected by calcium chloride solution with different concentrations for definite term with hydraulic gradient of10%. After determining conductivity of soil which is equal for all samples, strengths of each sample were measured.
Key words: Calcium Chloride, soil stabilization, cohesion, internal friction angle, Normality.