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A serious problem in the development of geothermal energy is the availability of durable and economical materials of construction for handling hot brine and steam. Hot brine and other aerated geothermal fluids are highly corrosive, and they attack most conventional materials of construction. The Brookhaven National Laboratory, Upton, N.Y., has been investigating the use of concrete polymer materials as alternative materials of construction for geothermal processes. To date, successful field tests have been demonstrated at the Geysers, Calif., the U.S. Bureau of Mines Corrosion Facility, Niland, Calif., and the Department of Energy Geothermal Facility at East Mesa, Calif. This report is a survey of field and laboratory evaluations of concrete polymer materials that have been shown to be durable and economical as alternative materials of construction.
geothermal, polymer concrete, polymer-impregnated concrete, brine, aggregate, monomer, liner, corrosion, scaling
Research scientist, Brookhaven National Laboratory, Process Sciences Division, Department of Energy and Environment, Upton, N.Y.
Associate chemical engineer, Brookhaven National Laboratory, Process Sciences Division, Department of Energy and Environment, Upton, N.Y.