Process of making material for and constructing a road

Details Process of making material for and constructing a road Process of making material for and constructing a road

1988-01-07

1988-12-27

Novosad, Stephen J.

Road structure, process, or apparatus

Process

1062811, 106409, E01C 700, C08L 9500

Patent

active

047937297

ABSTRACT:
A process of making materials for road construction and other purposes includes separating water from oil well drilling mud or other waste material sludge to form a partially dried sludge. The partially dried sludge is subjected to heat to further dry the sludge. The dried sludge is combined with an open cell aggregate or sand and caustic soda in a pug mill and ground to form relatively small particles. The small particles are expanded to a size which is at least 2 to 10 times the original size of the particles. When a road is to be built, the expanded particles are mixed with asphalt to form a product. This product has a thermal conductivity of approximately 0.36 B.t.u./(hr.)(sq.ft.) (deg.F./ft.). The product is then deposited over frozen and/or unfrozen ground during the construction of a road.

REFERENCES:
patent: 2313199 (1943-03-01), Heyning
patent: 2667425 (1954-01-01), Bierly et al.
patent: 3791443 (1974-02-01), Burt et al.
patent: 3818711 (1974-06-01), Condo et al.
patent: 3909474 (1975-09-01), Borchert et al.
patent: 3986781 (1976-10-01), Condo et al.
patent: 4364773 (1982-12-01), Veronneau et al.

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