Key parameters controlling electrical resistivity and strength of cement treated soils

Laboratory Electrical Resistivity Studies on Cement Stabilized Soil

“…In the meantime, the free water space and porosity decrease and tortuosity increases. Consequently, electrical resistivity increases more significantly [ 4 ].…”

“…Cement content has a great effect on electrical resistivity of soil-cement. The measured electrical resistivity of cement treated soils increases with the increase of cement content [ 4 ]. For a given curing time, higher cement content yields higher amount of hydration products resulting in a denser structure.…”

“…With the increase in percentage of cement and river sand added, UCS is found to increase as particles become more clustered and get bonded by the cementing action and the sand particles which replace the finer particles of soil take up more load. The difference in controlling parameters of the electrical resistivity and the compressive strength such as ion concentration in pore fluid and surface charges of the soil particles, which are factors affecting ER but not UCS, was suggested as the reason behind the nonlinear relationship between electrical resistivity and unconfined compressive strength of soil-cement by Zhang et al [ 4 ].…”

“…Zhang et al [ 4 ] worked on quantifying the effect of cement content, porosity, and curing period on the electrical resistivity and UCS of cement treated soil. The general Archie law, which includes the effect of water content and porosity, was modified to evaluate the effect of cement content and curing periods on the electrical resistivity of cement stabilized soil.…”

Electrical Resistivity of Freezing Clay: Experimental Study and Theoretical Model

“…As one of the natural characteristic indices, electrical resistivity is not only a requirement for geological prospecting but also an important indicator for soil mechanical properties (Bryson & Bathe, 2009;Chu et al, 2017;Samouelian et al, 2005). Since the electrical resistivity technique was introduced to measure the engineering properties of geomaterials (Rømoen & Lecomte, 2012), with decades of development, electrical properties have been widely used in evaluating geotechnical parameters (Zha et al, 2009;Cai et al, 2012;Revil et al, 2014), detecting contaminated soil layers (Brillante et al, 2015;Fukue et al, 2001), estimating the result of foundation soil treatment (Kalinski & Kelly, 1994;Zhang et al, 2012), evaluating sand liquefaction (Jinguuji et al, 2007;Jones et al, 2011), and evaluating soil salinity in agriculture (Corwin & Lesch, 2005).…”