ASTM C403 PDF

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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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The electronic file may not be reproduced in any way. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM C identifies initial and final time of set as: Combining values from the two systems may result in non-conformance with asm standard. This reaction combines water with cement forming chemical compounds, increasing the strength of the material and changing it from a plastic, moldable material to a solid capable of withstanding substantial loads. This standard is also available to be included in Standards Subscriptions.

The resistance of the concrete mixture to penetration by standard. Among other things, the initial and final time of set are influenced by: Are you sure you want to empty the cart? 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. 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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You may delete a document from your Alert Profile at any time. Please first log in with a verified email before subscribing to alerts. The percentage of slag cement used can also affect times of set. Need more than one copy? Time of set is defined as the point in time at which penetration resistance reaches specified values.

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 when using the prepared mortar. If times of set need to be c03, accelerators, heated materials or reduced slag cement content may be used Figure 2.

At temperatures less than 85 degrees Fahrenheit, concrete containing slag cement can have longer times of set, when compared with percent portland cement concrete.

ASTM C – National Precast Concrete Association

Your Alert Profile lists the documents that will be monitored. Historical Version s – view previous versions of standard. Standards Subsctiption may be the perfect solution. Print 1 2 3 4 axtm page sstarting from page current page. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards.

Subscription pricing is determined by: Penetration resistance Initial Time of Set psi Final Time of Set psi Typically to a concrete contractor, initial time of set refers to the time at which a concrete surface can bear the weight of an individual with minimal indentation.

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Historical Version s — view previous versions of standard.

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f403 Please first verify your email before subscribing to alerts. No items in cart. Enter your personal account email address to request a password reset: Initial aztm final set times are important because they give an indication of when the concrete can be properly placed, consolidated and finished.

It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine xstm applicability of regulatory limitations prior to use. ASTM C identifies initial and final time of set as:.

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When water comes into contact with hydraulic cement, a chemical reaction called hydration occurs. In this test method, the times required for d403 mortar to reach specified values of resistance to penetration are used to define times of setting.

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