Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Evaluating Clay Resources from Clay County, Georgia, for Structural Clay Products.

Authors
Liles-KJ; Heystek-H
Source
MISSING :28 pages
Link
NIOSHTIC No.
10006839
Abstract
To encourage the development and conservation of the nation's ceramic raw materials, the Bureau of Mines, U.S. Department of the Interior, under an agreement with the Georgia Department of Natural Resources, evaluated samples from a clay resource located in Clay County, Georgia, 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.
Publication Date
19800101
Document Type
IH; Report of Investigation;
Fiscal Year
1980
NTIS Accession No.
NTIS Price
Identifying No.
RI 8421
NIOSH Division
TURC;
Source Name
MISSING
State
GA;
TOP