ASTM C142 PDF

This standard is issued under the fixed designation C ; the number 1 This test method is under the jurisdiction of ASTM Committee C-9 on Concrete. 13 Jun American Association of StateHighway and Transportation Officials Standard AASHTO No. T Designation: C – 97 (Reapproved ). GeoTesting Express is a provider of Aggregate Testing Services – ASTM C, Test Method for Clay Lumps and Friable Particles in Aggregates.

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Originally approved in Based on this standard deviation.

Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Asym. Last previous edition approved in as C — Your comments will receive careful consideration at a meeting of the responsible technical committee.

Do not use the fingernails to break up particles.

Precision and Bias 8. Current edition approved Aug. 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. This standard has been approved for use by agencies of the Department of Defense.

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After all discernible clay lumps and friable particles have been broken. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phone.

Construction AggregateConcreteNature.

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The test sample shall have a mass not less than indicated in the following table: Please fill this form, we will try to respond as soon as possible.

June 13, Author: Home Tags Login Register Search. This ashm is subject to revision at any time by the responsible technical committee and must be reviewed every five years and if not revised. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards. To provide the quantities designated in 5.

A superscript epsilon e indicates an editorial change since x142 last revision or reapproval. The values given in parentheses are provided for information purposes only.

ASTM C – Free Download PDF Ebook

Significance and Use 3. A number in parentheses indicates the year of last reapproval.

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ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.

Classify any particles that can be broken with the fingers into fines removable by wet sieving as clay lumps or friable particles.

Users of this standard are expressly advised that determination of the validity of any such patent rights. Balances shall conform to the accuracy of the applicable sections of Ast C Roll and squeeze particles individually between the thumb and forefinger to attempt to break the particle into smaller sizes.

C — 97 Reapproved Standard Test Method for Clay Lumps and Friable Particles in Aggregates1 This standard is issued under the fixed designation C ; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.