Accession Number : AD0479427

Title :   PRELIMINARY INVESTIGATION OF STRUCTURAL PROPERTIES OF STABILIZED PRESSED EARTH BLOCKS.

Descriptive Note : Technical rept. Jun-Nov 65,

Corporate Author : AIR FORCE WEAPONS LAB KIRTLAND AFB NM

Personal Author(s) : Kent, Richard B. ; Gurner, Roger A.

Report Date : MAR 1966

Pagination or Media Count : 76

Abstract : A preliminary investigation was made of the engineering properties of pressed earth blocks manufactured in a manually-operated block making machine. Different admixtures were tested using Type 1 (normal Portland cement, Type 3 (high early strength) Portland cement, masonry cement, hydrated lime, SS-KH and RS-KH asphalt emulsions, Coherex, aggregates, and various combinations of these mixtures. Compressive strength and stress-strain characteristics of the blocks were determined. Tests were also conducted on the absorption and moisture content of the different percentages of admixtures. Nine 4-foot by 4-foot wall panels were constructed using the various combinations of additives, and tested with .30-caliber, .50-caliber, and 20-millimeter weapons to evaluate resistance of the blocks to penetration by small arms fire. The results obtained indicate the blocks may be used in any construction where compressive strength and mass density are controlling criteria. (Author)

Descriptors :   *CONSTRUCTION, *SOILS, STRUCTURAL PROPERTIES, FEASIBILITY STUDIES, SOIL MECHANICS, STABILIZATION, COMPRESSIVE PROPERTIES, MECHANICAL PROPERTIES, PLASTIC PROPERTIES, DENSITY, SOLUBILITY, PENETRATION, COSTS, CEMENTS, STRESSES, ASPHALT, HYDRATES, SMALL ARMS, FIRING TESTS(ORDNANCE), GUNS, RIFLES, ADDITIVES.

Subject Categories : Geology, Geochemistry and Mineralogy
      Construction Equipment, Materials & Supplies
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE