Stabilization of the Clay Soil of the Increased Humidity for Road Construction

In the work, the influence of stabilizing additive «Baustab» (produced by the Scientific and Production Enterprise «Plant of Innovative Industrial Equipment») on the change in humidity, water-holding capacity of soil with increased humidity was studied. We also studied changes in the maximum density and optimal moisture content of the modified soil using the example of light sandy loam. It has been established that the use of the additive slightly affects the change in soil moisture over time. Despite this, «Baustab» - added soil becomes denser, more viscous, partially aggregated, and no water separation is observed. A study of the water retention capacity of the percentage of stabilizing additives «Baustab» showed an increase in this indicator compared with soil without additives in the range from 3 to 7%. In addition, the use of additives in the soil composition increased its compaction and mobility even at low humidity of the modified soil. The effect of water on compaction of modified soil is also negligible. Such soil is likely to be subject to minimal subsidence and loss of strength characteristics in the autumn-spring period.