Published August 1993 | Version v1
Report Metadata-only

Preliminary estimation of the contribution of sand in concrete to the indoor dose

Creators

Description

The indoor dose from natural radioactivity content in sand used in the concrete manufacture was estimated for the case of 25 m3 room with a concrete floor. The walls and ceiling are considered to be made of materials that present no contributions. The 40 K, 226 Ra and 228 Ac concentrations of our sand samples from the Sao Paulo region were measured. This preliminary estimation shows that the contribution of sand in concrete to the indoor dose is comparable to the outdoor dose due to the terrestrial radiation if the world average levels for natural radioactivity are considered. (author)

Availability note (English)

Available from the Nuclear Information Center of Comissao Nacional de Energia Nuclear, RJ (BR).

Additional details

Publishing Information

Imprint Pagination
13 p.
ISSN
0101-3084
Report number
IPEN-PUB--393

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
24074397
Subject category
S54: ENVIRONMENTAL SCIENCES;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
ACTINIUM 228; CONCRETES; DOSE RATES; NATURAL RADIOACTIVITY; POTASSIUM 40; RADIATION DOSES; RADIUM 226; SAND
Descriptors DEC
ACTINIDE NUCLEI; ACTINIUM ISOTOPES; ALPHA DECAY RADIOISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; BUILDING MATERIALS; CARBON 14 DECAY RADIOISOTOPES; ELECTRON CAPTURE RADIOISOTOPES; EVEN-EVEN NUCLEI; HEAVY ION DECAY RADIOISOTOPES; HEAVY NUCLEI; HOURS LIVING RADIOISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; LIGHT NUCLEI; MATERIALS; NANOSEC LIVING RADIOISOTOPES; NUCLEI; ODD-ODD NUCLEI; POTASSIUM ISOTOPES; RADIOACTIVITY; RADIOISOTOPES; RADIUM ISOTOPES; YEARS LIVING RADIOISOTOPES