Lignin sulfonate has long been recognized as an effective dust control agent for unpaved roads. Lignin is a co-product of the paper industry and is the “glue” that holds cellulose fibers together in trees. Lignin is extracted from wood during the pulping process, which makes lignin soluble in water. The adhesive properties of lignin make it an effective dust control solution.
Lignin sulfonate is considered non-toxic when properly applied, making it safe for wildlife, foliage and waterways surrounding road. Lignosulfonate treatment eliminates the sliding hazards of loose dirt and gravel by binding it to a hard, skid-resistant surface. It is also considered non-corrosive and can be applied without special safety equipment or clothing. Vehicles can safely travel over roads treated with lignosulfonates almost immediately, eliminating road closures. When properly applied, lignin sulfonate creates a hardened road surface, is less likely to suffer “washboarding,” and reduces frost heaves common with untreated gravel or dirt roads. As a result, frequent grading and maintenance can be reduced.
Our commercial lignosulfonate product meets the specifications of the U.S. Forest Service Administration, General Service Administration, and local and regional government standards. Lignosulfonate use on roads has been endorsed by various agencies for decades.
Lignin is typically diluted with water prior to application. Most applications require about one-half gallon of lignin concentrate per square yard. We can ship lignin anywhere in the U.S. via LTL, truckload or railcar.
Contact EnviRoad® today to learn more!