Principal factors in unconfined compression strength of the solidified soil for the catchment area

Taking the unconfined compression strength as an indicated index, the principal factors such as dosage, aging, density, water content, the concreting time and the condition of concrete curing, which affected the solidified soil strength, and the measures to enhance the strength of the solidified soil for the catchment with soil stabilizer were analyzed. Results show that the dosage of soil stabilizer is about 12%, the aging is at least 7 d and the compactness is controlled above 0.94. Under the same density, the strength is the greatest if the water content is in the range of 75%～85% as optimum moisture content. The mixture must be compacted in 12 hours as soon as possible. After the catchment area is constructed, the surface is covered to defend the water evaporation at once and it is not sprayed water or immersion cured until 24 hours. The strength and appearance of the catchment area with soil stabilizer are better with the higher temperature and humidity than those of lower ones.