Coating processes – Coating pavement or the earth
Patent
1975-08-07
1978-02-28
Smith, Ronald H.
Coating processes
Coating pavement or the earth
106111, 106118, 169 45, 169 64, 252 2, 427427, B05C 116
Patent
active
040768627
ABSTRACT:
A method of treating barren earthen areas for inhibiting air and sun spoilation is disclosed, the method comprising forming an aqueous slurry of calcium sulfate hemihydrate with a small amount of defoamer using a quantity of water about 25-56% above normal consistency, the hemihydrate particles having a surface area of about 4,000-16,000 square centimeters per gram; and spraying the slurry onto the barren area to form a set, substantially air-impermeable covering to the barren area that will substantially exclude outside air from the area. The method is particularly applicable to controlling burning coal spoils and inhibiting spontaneous combustion of coal refuse banks.
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Blosser William Ivan
Kobeski Walter Dan
Needham James Joseph
Srocki Sigismund Walter
Childs Sadie L.
Kurlandsky Samuel
Roberts Kenneth E.
Robinson Robert H.
Smith Ronald H.
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