PROPERTIES OF RADIATION SHIELDING CONCRETE

Journal Article · Fri Feb 01 04:00:00 EST 1963 · J. Am. Concrete Inst., Proc.

OSTI ID:4728337

Shirayama, K

A study of boron-containing aggregates from the United 8tates and England and of seven heavy aggregates from Japan is reported. Data are presented and discussed concerning mix proportions, workability, unit weight, strength, drying shrinkage, and absorption coefficients for gamma - and xrays. Based on data obtained for mix proportions, formulas for estimating the unit weight of concrete from the specific gravity of the aggregate are proposed. The hematite ore used is found to be unsuitable for concrete aggregate because of an excessive amount of fines coating its surface. The tests indicate that, of the boron- containing material, the deleterious effects of colemanite on concrete strength and setting time is greater than that of borocalcite. This effect increases with increased fineness. The barite concretes provide better shielding against x-rays than anticipated from density calculations. Barite or magnetite concretes are more suitabie in shielding against gamma rays. (auth)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-17-011218
• OSTI ID: 4728337
• Journal Information: J. Am. Concrete Inst., Proc., Journal Name: J. Am. Concrete Inst., Proc. Vol. Vol: 60
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
BARITE
BARIUM SULFATES
BORATES
BOROCALCITE
BORON
CALCIUM COMPOUNDS
CONCRETES
CORROSION
DEFORMATION
DENSITY
EVAPORATION
GAMMA RADIATION
HEMATITE
IRON OXIDES
MACHINING
MAGNETITE
METALS, CERAMICS, AND OTHER MATERIALS
MINERALS
SHIELDING MATERIALS
SHRINKAGE
TENSILE PROPERTIES
VOLUME
WEIGHT
X RADIATION