EXPERIMENTAL STUDY OF ENGINEERING PROPERTIES OF LOESS REINFORCED BY CONSOLID SYSTEM
ZHANG Huyuan1，2，LIN Chengbin2，SHENG Yumeng2
(1. Key Laboratory of Mechanics on Western Disaster and Environment Mechanics，Lanzhou University，Lanzhou，Gansu 730000，
China；2. School of Civil Engineering and Mechanics，Lanzhou University，Lanzhou，Gansu 730000，China)
Abstract：The consolid system is a chemical reinforcement reagent that has been succesfully used worldwide to improve the engineering properties of soils. However，few studies address the application of the consolid system in the Huangtu Plateau(China). Here we tested the the consolid reagent for the improvement of loess soils form Qingyang and Lanzhou，thus to evaluate the feasibility of Consolid system applied in loess region of China. Laboratory tests conducted include Atterberg limits tests，compaction tests，unconfined compression tests，swelling tests and the drying shrinkage tests in diverse mixed ratio of the consolid system to bulk solid. The results implied that，with the increasing proportion of Consolid system in the mixture，the liquid limit，plastic limit，plasticity index，optimum moisture content，compressive strength and anti-disintegration property increased. While the maximum dry density and the swelling percentage decreased. The liner drying shrinkage percentage decreased followed by increased. The optimum proportion of Consolid system added into loess soils is suggested to be 2%～2.5%，which made the comparable effect to the 5% modified cement or 5% modified lime，with respect to requirement of engineering construction in loess area of China.
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2015, Vol. 34 
