Study on the Mechanical Strength of Calcium Oxide-Calcium Phosphate Cured Heavy Metal Zinc Contaminated Red Clay Soil

With the continuous improvement of construction ecological economic system in new era, problem heavy metal pollution has become an important issue urban construction. In this paper, Zn2+ contaminated red clay is used as research object, and calcium superphosphate oxide are curing agents to conduct simultaneous test unconfined compressive strength-resistivity. The mechanical properties resistivity soil under different conditions were analyzed investigate their effects on cured clay. results showed that contamination concentrations weakening strength soils, soils increased significantly. age maintenance affects soil, growth most obvious 0–7 day. After that, it tends be stable with age. deformation modulus before after was reduced degrees. Before curing, decreased increase ion concentration, agent incorporation rate same concentration. can enrich treatment sites provide theoretical support for application type field engineering soil.