Abstract
The significant criterion for evaluating the merits of a new type of high molecular polymer lies in its engineering properties and eco-friendliness. The focus of this study was to determine the effects of preparation conditions on the viscosity of the polyvinyl acetate (PVAc) emulsion, including reaction temperature (Tr), initiator concentration (CAPS), monomer concentration (CVA), pH value, and degree of dilution (Ddi). Based on the results of a series of laboratory tests, the range of viscosity value of PVAc was obtained under different conditions, and one set of viscosity values out of these was applied to soil reinforcement tests. Meanwhile, based on the test results, the engineering properties of PVAc solution were evaluated using strength and moisture retention tests, and the reinforcement mechanism was analyzed using scanning electron microscopy (SEM). In addition, it was proven through a vegetation growth test that the PVAc was eco-friendly.
Highlights
Adding reinforcement material to soil is internationally considered as an effective method to improve soil properties [1,2,3,4,5,6].In general, the reinforcement material is divided into two types, namely, physical reinforcement material and chemical additives
A series of laboratory tests were carried out to determine the effect of reaction temperature, initiator concentration, monomer concentration, pH value, and degree of dilution on the viscosity of a polymer emulsion
The mechanism of these factors affecting the viscosity of the polymer emulsion was briefly analyzed
Summary
Adding reinforcement material to soil is internationally considered as an effective method to improve soil properties (i.e., strength performance, permeability behavior, and erosion resistance) [1,2,3,4,5,6].In general, the reinforcement material is divided into two types, namely, physical reinforcement material and chemical additives. Adding reinforcement material to soil is internationally considered as an effective method to improve soil properties (i.e., strength performance, permeability behavior, and erosion resistance) [1,2,3,4,5,6]. It is generally recognized that these methods reinforce soil by utilizing enforcing structures and, on the other hand, they do not modify the physical and chemical properties of the soil [12]. Chemical additives, including traditional and non-traditional additives in reinforced soil, are utilized for modifying soil properties and have been extensively used in soil stabilization [13,14]. The addition of traditional reinforcement materials (inorganic types including cement, fly ash, and their mixture) greatly enhances the properties of reinforced soil (i.e., strength and stiffness) [15,16,17,18]
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