March 28, 2020

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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Among other things, the initial and final time of set are influenced by: Register for a trial account. This standard is also available to be included in Standards Subscriptions. At temperatures less than 85 degrees Fahrenheit, concrete containing slag cement can have longer times of set, when compared with percent portland cement concrete. Medias this blog was made to help people to easily download or read PDF files.

This test method may also be used to determine compliance with specified time-of-setting requirements. ASTM C identifies initial and final time of set as: 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. Sign up for our newsletter.

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Referenced Documents purchase separately The documents listed below are referenced within the subject standard but asmt not provided as part of the standard. 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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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.

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Standards Subsctiption may be the perfect solution. It is the responsibility of the user of this standard to establish appropriate safety and health sstm and determine the applicability of regulatory limitations prior to use. Combining values from the two systems may result in non-conformance with asm standard.

ASTM grants you a license as follows: Historical Version s – view previous versions of standard. Please sign into an account with a subscription aetm this content, or email aastm help at support madcad.

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If the document is revised or amended, you will be notified by email. Slower times of set are beneficial in hot weather because the contractor has a longer time to deliver, place, and finish the concrete. The percentage of slag cement used can also affect times of set.

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

If times of set need to be c03, accelerators, heated materials or reduced slag cement content may be used Figure 2. Remember me for one month. No items in cart. In addition the electronic files may not be downloaded or distributed elsewhere over computer networks or otherwise. No further reproductions authorized.

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?

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. However, replacement rates of less than 30 percent generally will not affect times of set significantly.

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The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with 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 when using the prepared mortar.

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Follow us on Twitter. Link to Active This link will always route to the current Active version of the standard. Initial aztm final set times are important because they give an indication of when the concrete can be properly placed, consolidated and finished.

The right to access the electronic files of ASTM Standards is for purposes of viewing for individual use only. Enter your personal account email address to request a password reset: There were no books found for the applied search filters.

Why is Time of Set Significant? Please first verify your email before subscribing to alerts. 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. Historical Version s — view previous versions of standard. This reaction combines water with cement forming chemical compounds, increasing d403 strength of the material and changing it from a plastic, moldable material to a solid capable d403 withstanding substantial loads.

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