ASTM-C637 Standard Specification for Aggregates for Radiation-Shielding Concrete

ASTM-C637 - 2014 EDITION - CURRENT
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This specification covers special aggregates for use in radiation-shielding concretes in which composition or high specific gravity, or both, are of prime consideration. Aggregates covered by specification include the natural mineral aggregates of either high density or high fixed water content, or both. These include aggregates that contain or consist predominately of materials such as barite, magnetite, hematite, ilmenite, and serpentine. Also included are synthetic aggregates such as iron, steel, ferrophosphorus and boron frit or other boron compounds. Fine aggregate consisting of natural or manufactured sand including high-density minerals. Coarse aggregate may consist of crushed ore, crushed stone, or synthetic products, or combinations or mixture thereof. Aggregates shall meet the required uniformity of specific gravity and fixed water content. The materials shall also meet the required chemical composition for serpentine, limonite, goethite, barite, ilmenite, hematite, magnetite, iron, ferrophosphorus, boron frit, boron carbide, calcium carbide.

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Scope

1.1 This specification covers special aggregates for use in radiation-shielding concretes in which composition or high specific gravity, or both, are of prime consideration.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 The following precautionary caveat pertains only to the test method portion, Section 9, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Keywords

aggregates; boron frit; calcium boride; high-density aggregates; high water-content aggregates; hydrous aggregates; radiation shielding concrete; ICS Number Code 13.280 (Radiation protection); 91.100.30 (Concrete and concrete products)

To find similar documents by ASTM Volume:

04.02 (Concrete and Aggregates)

To find similar documents by classification:

13.280 (Radiation protection Including protection against radio-frequency radiation Radiation measurements, see 17.240)

91.100.30 (Concrete and concrete products Including admixtures)

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Document Number

ASTM-C637-14

Revision Level

2014 EDITION

Status

Current

Modification Type

Revision

Publication Date

June 15, 2014

Document Type

Specification

Page Count

4 pages

Committee Number

C09.20