ASTM C1252 PDF
ASTM C Standard Test Methods for Uncompacted Void Content of Fine Aggregate (as Influenced by Particle Shape, Surface Texture. Matest proposes a wide range of testing equipment for ASTM C standard. For more info contact us. Purchase your copy of ASTM C – 17 as a PDF download or hard copy directly from the official BSI Shop. All BSI British Standards available.
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Uncompacted void content is calculated using the bulk dry specific gravity of the fine aggregate. For a graded sample Test Method A or Test Method C the percent void content is determined directly, and the average value from two runs is reported.
When void content is measured on an as-received fine-aggregate grading, it can cc1252 an indicator of the effect of the fine aggregate on the workability of a mixture in which it may be used. Historical Version s – view previous versions of standard.
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When measured on any aggregate of a known grading, void content provides an indication of that aggregate’s angularity, sphericity, and surface texture compared with other fine aggregates tested in the same grading.
Typically, the material used to make up the standard axtm sample can be obtained from the remaining size fractions after performing a single sieve analysis of the fine aggregate.
Test Method C does not provide an indication of shape and texture directly if the grading from sample to sample changes. Please first verify your email before subscribing to alerts. Link to Active This link will always route to the c12522 Active version of the standard. Proceed to Checkout Continue Shopping. However, Test Method B provides additional information concerning the shape and texture characteristics of individual sizes. Uncompacted void content is calculated as the difference between the volume of the cylindrical measure and the absolute volume of the fine aggregate collected in the measure.
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For the individual size fractions Test Method Bthe mean percent void content is calculated using the results from tests asmt each of the three individual size fractions.
Standards Subsctiption may be the perfect solution. The fine aggregate is struck off and its mass is determined by weighing. When measured on any aggregate of a known grading, void content provides an indication of that aggregate’s angularity, sphericity, and surface texture compared with other fine aggregates c122 in the same grading.
We have no document history for this standard. Two use graded fine aggregate standard grading or as-received gradingand the other uses several individual size fractions for void content determinations This void content depends on grading as well as particle shape and texture.
See the Section 9 for the grading. Aggregate testing Back to Results Print. Therefore, use either one method or the other as a comparative measure of shape and texture, and identify which test method has been used to obtain the reported data.
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When void content is measured on an as-received fine-aggregate grading, it can be an indicator of the effect of the fine aggregate on the workability of a mixture in which it may be used. Two use graded fine aggregate standard grading or as-received gradingand the other uses several individual size fractions for void content determinations: You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server.
Subscription pricing is determined by: Aggregate testing Lab Services: If the document is revised or amended, you will be notified by email. In general, high void content suggests that the material could be improved by providing additional fines in the fine aggregate or more cementitious material may be needed to fill voids between particles.
The void content is actually a function of the volume of each size fraction. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards.
Need more than one copy? A decrease in void content results is associated with more rounded, spherical, or smooth-surfaced fine aggregate, or a combination thereof. The effectiveness of these test methods of determining void content and its relationship to particle shape and texture depends on the relative density specific gravity of the various size fractions being equal, or nearly so.
An astk in void content by these procedures indicates greater angularity, less sphericity, rougher surface texture, or combinations thereof. We have no amendments or corrections for this standard. Your Alert Profile lists the documents that will be monitored. Please first log in with a verified email before subscribing to alerts. A nominal mL calibrated cylindrical measure is filled with fine aggregate of prescribed grading by allowing the sample to flow through a funnel from a fixed height into the measure.
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