To expose the deterioration rule of cemented soil eroded by sewage

soaking the cemented soil blocks made of two types of cement (ordinary Portland cement

slag Portland cement) and silty clay in three different solutions (tap water

domestic sewage and industrial sewage)

the laboratory experiments were conducted. First

the effect of sewage on liquid-plastic limit of soil was described. Second

the influence of curing age

cement type and sewage type on compressive strength and electrical resistivity of cemented soil were discussed. Then

the relationship between electrical resistivity of cemented soil and compressive strength was analyzed. The results show that: After contaminated by sewage

the liquid-plastic limit of soil increases; whereas the plasticity index decreases; the compressive strength and electrical resistivity increase with increasing curing age; the sewage reduces the compressive strength and the resistivity of the cemented soil; however

the compressive strength and electrical resistivity of slag Portland cemented soil are higher than that of the ordinary Portland cemented soil; therefore slag Portland cement can improve the ability of resistance to degradation. Under different curing ages

no matter what type of cement and sewage

the electrical resistivity and compressive strength of the cemented soil vary follow the same rule. The relationship between electrical resistivity and compressive strength is linear.