Alternate materials of construction for geothermal applications. Progress report No. 15, October 1977--March 1978

Technical Report · Wed Mar 01 04:00:00 EST 1978

DOI:https://doi.org/10.2172/6848925· OSTI ID:6848925

Steinberg, M; Kukacka, L E

A program to determine if non-metallic materials such as polymers, concrete polymer composites, and refractory cements can be utilized as materials of construction in geothermal processes is in progress. To date, several high temperature polymer concrete systems have been formulated, laboratory and field tests performed in brine, flashing brine, and steam at temperatures up to 260/sup 0/C (500/sup 0/F), and economic studies started. Laboratory data for exposure times > 2 years are available. Test results indicate that polymer concrete (PC) containing mixtures of styrene--acrylonitrile--acrylamide or methacrylamide produces composites with the best high temperature and chemical resistance obtained to date. The results show that the use of a 12 wt % concentration of a 55 wt % styrene--35 wt % acrylonitrile--5 wt % acrylamide--5 wt % trimethylolpropane trimethacrylate monomer mixture in conjunction with 88 wt % of a 70 wt % silica sand--30 wt % Portland cement aggregate produces a composite with a compressive strength at 20/sup 0/C (68/sup 0/F) in the range 25,000 to 30,000 psi. The PC is thermally stable to approximately 240/sup 0/C (464/sup 0/F). Results are also available from field exposures of up to 24 months in four geothermal environments. Good durability is indicated. Work at four of these sites is continuing, and plans to initiate tests at other sites are being implemented.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• DOE Contract Number: EY-76-C-02-0016
• OSTI ID: 6848925
• Report Number(s): BNL-50834
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
150901 -- Geothermal Engineering-- Drilling Technology & Well Hardware
150902 -- Geothermal Engineering-- Fluid Transmission
150903* -- Geothermal Engineering-- Corrosion
Scaling & Materials Development
ACRYLAMIDE
ACRYLONITRILE
ADSORPTION
AMIDES
AROMATICS
BRINES
BUILDING MATERIALS
CARBOXYLIC ACID SALTS
CEMENTS
COMPOSITE MATERIALS
COMPRESSION STRENGTH
CONCRETE-PLASTIC COMPOSITES
ELECTRON MICROSCOPY
FLUIDS
GEOTHERMAL FLUIDS
Geothermal Legacy
HIGH TEMPERATURE
HYDROCARBONS
LINERS
MATERIALS
MATERIALS TESTING
MECHANICAL PROPERTIES
METHACRYLATES
MICROSCOPY
NITRILES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHYSICAL PROPERTIES
PIPES
POLYMERS
PORTLAND CEMENT
SAND
SCALING
SORPTION
STABILITY
STEAM
STYRENE
TEMPERATURE EFFECTS
TESTING