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Less cement and water are required in mixtures having large coarse aggregate Bureau of Reclamation Expanded clay left and expanded shale right. Observe the alkali-silica reaction rim around the reactive aggregate and the crack formation. A superscript epsilon e indicates an editorial change since the last revision or reapproval. Inset shows closeup of a popout. Do not use the fingernails to break up particles, or press particles against a hard surface or each other.
This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and if not revised, either reapproved or withdrawn. Based on this standard deviation, the acceptable range of two test results on samples from the same aggregate sent to different laboratories is 1.
Clay Lumps and Friable Particles in Aggregates (ASTM C142)
If you wish to download it, please recommend it to your friends in any social system. 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.
When different sizes are combined, the void-content decreases. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor zstm astm. Aggregate Uses Rock like material that has many Civil Engineering applications: To make this website work, we log user data and share it with processors.
ASTM C – 97 Standard Test Method for Clay Lumps and Friable Particles in Aggregates
The Sand located in Bay St. Earth science Rock cycle, Igneous rocks. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.
Black, malfic igneous rock fragments gabbroic ; medium hard to hard; slightly weathered; sub-angular to sub-rounded. My presentations Profile Feedback Log out.
This standard is not included in any packages. Current edition approved Aug. Fig Polished section view of an alkali reactive aggregate in concrete. The values given in parentheses are provided for information purposes only.
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ASTM C / CM – 17 Standard Test Method for Clay Lumps and Friable Particles in Aggregates
Proceed to Checkout Continue Shopping. The test sample shall have a mass not less than indicated in the 1c42 table: This standard is also available to be included in Standards Subscriptions.
Standards Subsctiption may be the perfect solution. It is the responsibility of the user of this standard to establish appro- priate safety and health practices and determine the applica- bility of regulatory limitations prior to use. Granite, limestone and quartz, are low shrinkage-producing aggregates ACI R.
Aggregate Acceptance Testing Results: The American Society for Testing and Materials takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.
Some Potentially Harmful Reactive Minerals, Rock, and Synthetic Materials Several of the rocks listed granite gneiss and certain quartz formations for example react very slowly adtm may not show c1442 of any harmful degree of reactivity until the concrete is over 20 years old.
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