Mechanism of Experimental Loess Reinforced by F1 Ionic Soil Stabilizer in Physical and Mechanical Properties
WANG Jinglong1, WANG Xu1,2, LI Jiandong1, ZHANG Yanjie1, JIANG Daijun1, LIU Deren1, LI Xun1
1 School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China 2 National and Provincial Joint Engineering Laboratory of Road & Bridge Disaster Prevention and Control, Lanzhou 730070, China
Abstract: The purpose of this paper is to research the effect of loess reinforced by soil stabilizer. A series of experiments are conducted to analyze the physico-mechanical properties and microscopic mechanism of the experimental loess reinforced by ionic soil stabilizer (F1). The experimental results indicate that the F1 stabilizer can provide strongly positive or cationic molecules, and adsorb clay mineral particles with permanent negative charge through ion exchange, so that the soil particles can be rearranged into a layered stacked structure with stronger bonding force under external load to increase the strength of soil; F1 stabilizer hinder the adsorption of clay particles to polar water molecules, reduce the water sensitivity, liquid and plastic limit, and optimum moisture content of soil, but increase the maximum dry density and unconfined compressive strength; SEM and NMR test show that, the F1 can reduce pore volume, area ratio, diameter, and connectivity. Compared with traditional reinforced materials such as lime and cement, F1 stabilizer has many unique advantages such as convenient utilization, low cost, and short curing period.
王景龙, 王旭, 李建东, 张延杰, 蒋代军, 刘德仁, 李迅. F1离子固化剂加固试验黄土的物理力学特性变化机理[J]. 材料导报, 2021, 35(8): 8070-8075.
WANG Jinglong, WANG Xu, LI Jiandong, ZHANG Yanjie, JIANG Daijun, LIU Deren, LI Xun. Mechanism of Experimental Loess Reinforced by F1 Ionic Soil Stabilizer in Physical and Mechanical Properties. Materials Reports, 2021, 35(8): 8070-8075.
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2021, Vol. 35 
