Evaluation of Polymer Emulsions to Serve as Soil Treatments for Dust Control

摘要

The report describes research work conducted to develop an improved polyvinyl acetate (PVA) polymer emulsion. Various manufacturers were contacted for information, recommendations, and samples of basic PVA systems. Some systems were modified with various additives. Tests were conducted on both modified and unmodified samples. These tests included determination of physical properties with particular emphasis placed on toughness. Environmental tests included exposure to ultraviolet light and water spray, soil bacteria, and fungi and heat aging. Modifications studied included viscosity, plasticizers, and fungicides. The above data were analyzed and six of the most promising formulations were submitted to the U.S. Army Engineer Waterways Experiment Station (WES) for evaluation. Laboratory screening tests and weathering tests were performed on these materials at the WES. Procurement specifications were prepared using analysis of the 034001B test data. (Author)