Optimizing the Use of Formalin Aqueous by using Disposed Formalin Aqueous to Improve Properties of Expansive Soil

摘要

With the recently increased interest for sustainable engineering and its applications in geotechnical engineering, soil treatment becomes a customary strategy used to enhance soils to accomplish the specifications of different projects. Soil stabilization, which includes soil stabilization by additives, is a well-known method to improve engineering properties of the expansive soil. The main purpose of this paper is to investigate the influence of using a formalin aqueous waste to improve the engineering properties of an expansive clayey-soil selected from the northern part of Jordan, Irbid city. To attain this target, several laboratory tests including Atterberg limits, standard proctor compaction, unconfined compression strength (UCS), and swell test were carried to compare the effect of adding different percentages of the formalin aqueous waste on the natural and the treated soil. The results showed that the used formalin improves the engineering properties of the expansive soil used in this study by increased the UCS, dry unite weight (γ_d), reducing the swelling potential. Therefore, it can be considered as a good stabilizing agent for soil at different percentages.