EVALUATING CLAY RESOURCES FROM CLAY COUNTY, GEORGIA FOR STRUCTURAL CLAY PRODUCTS
The Georgia Department of Natural Resources, evaluated samples from a clay resource located in Clay County, Ga., for use as a raw material for lightweight aggregate. The physical properties of clay samples, taken from 5-foot increments of drill cores from 11 holes, were determined. Raw materials were plasticized and extruded to produce 1/2-inch by 1-inch pieces and fired in a rotary kiln to produce lightweight aggregate samples. The resulting expanded material had excellent loose pour weights ranging from 30 to 37 lb/cu ft. The expanded test materials were crushed, sized, and used as aggregate to form concrete cylinders. The unit weight and compressive strength of the cylinders averaged 106 lb/cu ft and 3,350 lb/sq in, respectively; these values meet American Society for Testing and Materials specifications for structural concrete. The clay from the drill cores was also used to make test bars that were evaluated for building brick.
- Prepared in cooperation with Alabama Univ., University.
Bureau of MinesTuscaloosa Metallurgy Research Center
University, AL United States
- Liles, K J
- Heystek, H
- Publication Date: 1980
- Pagination: 34 p.
- TRT Terms: Clay; Compressive strength; Evaluation; Expanded clay aggregates; Lightweight aggregates; Mines and mineral products; Performance based specifications; Physical properties; Raw materials; Specifications; Structural materials
- Geographic Terms: Georgia
- Old TRIS Terms: Structural clay products
- Subject Areas: Geotechnology; Highways; I36: Aggregates;
- Accession Number: 00326540
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: BUMINES-RI-8421
- Files: TRIS
- Created Date: Feb 18 1981 12:00AM