GeoTesting Express is a provider of Aggregate Testing Services – ASTM C, Standard Test Method for Total Evaporable Moisture Content of Aggregate by. ASTM C Standard Test Method for Total Evaporable Moisture Content of Aggregate by Drying. 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.

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It will generally measure the moisture in the test sample more reliably than the sample can be made to represent the aggregate supply. However, this measurement method is not always accurate since it depends on the impurities, or minerals, present in the water. Lastly, radar-type probes consist of guided radar waves to facilitate measurements. For SCC processes made without moisture probes or meters and automatic mixing water adjustment systems, the aggregate surface moisture content must be determined at least once per day prior to the batch and once every four hours after the first batch.

The right to access the electronic files of ASTM Standards is for purposes of viewing for individual use only. For specific precautionary statements, see 5. This standard is not included in any packages. The probe sends radar waves into the sand and measures the reflection returned.

Controlling Moisture to Ensure Quality – NPCA

The alternative designation given in parentheses is for information only and does not represent a different standard sieve size. ASTM grants you a license as follows: Subscription pricing is determined by: There were no books found for the applied search filters. These technologies allow automatic moisture evaluations of materials.

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Thank you for your comment Sufian. Probes can be placed in bins just under the discharge gates and above the weigh belt or directly in the path of the aggregates after they have dropped onto the belt.

Register for a trial account. You may delete a document from your Alert Profile at any time. 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.

Such water is not evaporable and is not included in the percentage determined by this test method. Search book title Enter keywords for book title search. Remember me for one month. By measuring the reflection points, a sine wave, or data pattern, is then created to guarantee an accurate moisture reading.

Controlling Moisture to Ensure Quality

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. Content only available by subscription. So the real question is: For specific precautionary statements, see 5.

However, with either choice, accurate accounting of moisture in aggregates is essential to keep your mix on target and within specified limits. Note 1 — Sieve size is asm by its standard designation in Specification Asgm One of the biggest advantages over manual methods is they obtain values of aggregate moisture as they are batched in real time or with very minimal delay.

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Then, take the pair of cylinders and break them.

Standards Subsctiption may be the perfect solution. Probes do not eliminate the need to perform manual tests for verification of aggregate moisture. However, they significantly reduce the frequency of manual tests.

Link to Active This link will always route to the current Active version of the standard. Once the moisture of the aggregates has been determined, these values are typically given to the batcher for entry into the batching computer or to make the appropriate manual proportioning changes.

Work Item s – proposed revisions of this standard. Approximate relationship between compressive strength and water-cementitious materials ratio for concrete.

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Probes can also be placed in the mixer. Discovering the detrimental effects can be easily seen in a small-scale experiment using compressive-strength cylinders and a common mix design.

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Comments How is the price for the probe including installation charge? ASTM C uses the sampled aggregate mass against the same sample following drying. Aggregate moisture requirements are addressed in Section 5. Enter your account email address to request a password reset: This standard is also available to be included in Standards Subscriptions.

Resistance-type probes measure the resistance of an electric potential between two locations.