Physicochemical stabilization of soil, a lab methodology for its evaluation, case Cd. Hermosillo, Sonora, Mexico

Abstract

<p>In cities in development air pollution by dust, due to the lack of paved streets, is an ongoing problem. Although there are advanced technological products directed to mitigate this problem, in most of the cases their acquisition is not economically feasible. This research propounds a methodology to evaluate common regional products to be implemented as soil stabilizers. Some of these products are: hydrous lime, natural zeolite, calcium lignosulfonate and lime. The evaluation is carried out by means of the strength parameters to direct load and saturation-immersion test. The latter one with the aim of evaluating if mixture is liable to be easily weaken by humidity as the ground critical condition. In the particular case of the named products, the mixture of hydrous lime and zeolite (natural zeolitic tuff) showed a better behavior when combined with studied ground which was classified as sand with fine argillaceous slime. The evaluating methods include the soil characterization by means of traditional ground mechanics test in addition with instrumental techniques like: x-ray diffraction, electronic microscopy of sweeping and petrography, as well as ground mineralogical characterization techniques. The aim of these techniques incorporation is to get a more precise soil characterization as well as a better understanding of the physicochemical stabilization behavior</p>