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Significance and Use 3. Til 2 Standard Zstm Method for Clay Lumps and Friable Particles in Aggregates 1 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.

Black, malfic igneous rock fragments gabbroic ; medium hard to hard; slightly weathered; sub-angular to sub-rounded. The atsm is not to scale. Balances shall conform to the accuracy of the applicable sections of Specification C Fig Polished section view of an alkali reactive aggregate in concrete.

Expanded clay left and expanded shale right. When different sizes are combined, the void-content decreases.

The FM is an index of the fineness of the aggregate.

Full text of “C Standard Test Method For Clay Lumps And Friable Particles In Aggregates”

After all discernible clay lumps and friable particles have been broken, separate the detritus from the remainder of the sample by wet sieving over the sieve prescribed in the following asm If you wish to download it, please recommend it to your friends in any social system. We have no amendments or corrections for this standard.


White, black and pink, felsic igneous rock fragments fine-grained granitic ; hard; slightly weathered; sub-angular. Originally published as C – 38 T. George region consists primarily of mineral grains and fragments of igneous intrusive rocks with the following typical petrographic analysis: To make this website work, we log user data and share it with processors.

The values given in parentheses are provided for information purposes only. Combining values from the two systems may result in non-conformance with the standard. Share buttons are a little bit lower. The test sample shall have a mass not less than indicated in the following table: Auth with social network: Different aggregate grading may have the same FM. The composition of Sand varies, depending on the local rock sources and conditions, but the most common constituent of Sand is silica silicon dioxide, or SiO 2usually in the form of quartz.

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This standard is not included in any packages. Inset shows closeup of a popout. Only certain sources of these materials have shown reactivity. My presentations Profile Feedback Log out.


Do not use the fingernails to break up particles, or press particles against a hard surface or each other. Observe the alkali-silica reaction rim around the reactive aggregate and the crack formation.

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Fine Aggregate Sand

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Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters. 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. Earth science Rock cycle, Igneous rocks.