Method for soil stabilization and fugitive dust control
AssigneeExxon Research & Engineering Co.
InventorVirgil H. Cargle
Life of this patent
Estimating the term…
Abstract
A method of enhancing the geotechnical properties of soil materials so as to control soil erosion including fugitive dust by treating the soil with a mixture of polyacrylic acids or polyacrylates, a dibasic acid or acid salt and a wetting agent in water utilizes an aqueous solution of a polyacrylate emulsion, (said active polymer having a Mw of 1-5 million), sodium citrate and a surfactant (nonylphenol plus 10 moles ethylene oxide). The mixture is applied directly to the soil to be stabilized in either diluted or undiluted form whereby surface erosion in both quiescent areas and road beds can be controlled.
Claims11
A method of treating soil comprising the steps of distributing a soil treating composition comprising an aqueous mixture of (a) homopolymers and copolymers of acrylic acid and salts thereof having a weight average molecular weight (Mw) ranging from 5,000 to about 30 million;
- (b) a monomeric polybasic carboxylic acid including salts thereof;
- and (c) a wetting agent, said homopolymers and copolymers of (a) having a weight ratio based on the weight of (b) ranging from 2 to 50, said water being from 90 to 99.9 weight percent of the total composition into the surface layer of said soil and thereafter drying said surface layer whereby the geotechnical properties of said surface layer are enhanced.
A method according to claim wherein said polybasic acid is present as the sodium, ammonium, potassium or lithium salt thereof.
Dependencies are inferred from the claim text.