A synthetic cover for bulk material piles and loads in transit may be
formed from a slurry mixture of liquid and powder made from recycled
gypsum wallboard. These constituents may be mixed and applied to cover a
bulk material pile and/or waste pile, and/or to control erosion. The cover
will harden to minimize water infiltration, wind blown dust, odor and
affinity to birds, flies and other insects. The liquid may include water,
landfill leachate and wastewater; the powder from heated recycled gypsum
wallboard may include alpha-hemihydrate and shredded paper,
beta-hemihydrate and shredded paper or anhydrate and shredded paper. When
clean water is used, the cover is non-toxic, non-combustible and harmless
to fish, birds, plants and animals.