ASTM C403 PDF

Time of Setting of Concrete Mixtures by Penetration Resistance. Standard Test Method for Time of Setting of Concrete Mixtures by Penetration Resistance. The resistance of the concrete mixture to penetration by standard. Extracted, with permission, from ASTM C / CM Standard Test Method for A copy of the standard may be purchased from ASTM International, phone.

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Sign up for our newsletter. Typically to a concrete contractor, initial time of set refers to the time at which a concrete surface c40 bear qstm weight of an individual with minimal indentation.

You currently cannot view this content. Link to Active This link will always route to the current Active version of the standard. However, when the setting time of concrete is desired, the test shall be performed on mortar sieved from the concrete mixture and not on a prepared mortar intended to simulate the mortar fraction of the concrete; it has been shown that the initial and final setting times may be increased c4003 using the prepared mortar.

This standard is also available to be included in Standards Subscriptions. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server.

Among other things, the initial and final time of set are influenced by: The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Link to Active This link will always route to the current Active version of the standard. Slower times of set are beneficial in hot weather because the contractor has a longer time to deliver, place, and finish the concrete.

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In this test method, the times required for the mortar to reach specified values of resistance to penetration are used to define times of setting. Combining values from the two systems may result in non-conformance with the standard. You may delete a document from your Alert Profile at any time.

This test method may also be used to determine compliance with specified time-of-setting requirements. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.

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Why is Time of Set Significant? The resistance of the concrete mixture to penetration by standard. In addition the electronic files may aetm be downloaded or distributed elsewhere over computer networks or otherwise. Your Alert Profile lists the documents that will be monitored. Please sign into an account with a subscription aetm this content, or email for help at support madcad.

Are you sure you want to empty the cart? The right to access the electronic files of ASTM Standards is for purposes of viewing for individual use only. Enter your account email address to request a password reset: When water comes into contact with hydraulic cement, a chemical reaction called hydration occurs.

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This standard is not included in any packages. Already Subscribed to this document. However, when the setting time of concrete is desired, the test shall be performed on mortar asrm from the concrete mixture and not on a prepared mortar intended to simulate the mortar fraction of the concrete; it has been shown that the initial and final setting times may be increased when using the prepared mortar. Please first verify your email before subscribing to alerts.

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If the document is revised or amended, you will be notified by email. Need more than one copy? No further reproductions authorized. We have no amendments or corrections for this standard. Cementitious material chemistry Cementitious material fineness Cementitious material content Water to cementitious materials ratio Concrete and ambient temperatures Admixture types Fly ash and pozzolan properties How Does Slag Cement Affect Time of Set?

The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. ASTM grants you a license as follows: Subscription pricing is determined by: No items in cart. Combining values from the two systems may result in non-conformance with asm standard. If times of set need to be c03, accelerators, heated materials or reduced slag cement content may be used Figure 2.

ASTM C Setting of Concrete Mix by Penetration Resistance | CTL Grp

Add to Alert PDF. ASTM C identifies initial and final time of set as: However, replacement rates of less than 30 percent generally will not affect times of set significantly.

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