ASTM C1244 PDF

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ASTM C() Standard Test Method for Concrete Sewer Manholes by the Negative Air Pressure (Vacuum) Test Prior to Backfill Paperback – April 1. ASTM A/AMa Testing Mechanical Splices for Steel Reinforcing Bars .. ASTM C Concrete Sewer Manholes by the Negative Air Pressure. This standard is issued under the fixed designation C; the 1 This test method is under the jurisdiction of ASTM Committee C13 on.

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Significance and Use This is not a routine test. The test and criteria have been widely and successfully used in testing manholes. Users are hereby cautioned that misuse or misapplication of the test criteria contained herein can cause permanent damage to the system being tested.

Vacuum Testing Precast Concrete Manholes

So in your example, we would round the depth of bury up to 16 feet, meaning we would need the mercury to hold for at least 40 seconds. Enter your account email address to request a password reset: This standard is not included in any packages.

For your example, this length of time must be greater than or equal to 40 seconds for the manhole to be accepted. For simplicity, the effects of soil pressure are not taken into account in the following information and examples. F Standard Specification for Driven Fasteners: Therefore, to be more conservative, it is recommended that you round your depth of bury up to the nearest measurement on the table.

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Subscription pricing is determined by: We have no amendments or corrections for this standard. I hope this explanation helps clarify the procedure a bit.

Today, some 12, ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. Proceed to Checkout Continue Shopping. Thank you for the comment Taylor.

Enter your personal account email address to request a password reset: Subscription pricing is determined by: Already Subscribed to this document. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server.

Standards Subsctiption may be the perfect solution. As the voice of the U. Remember me for one month. We have no amendments or corrections for this standard. Subscription pricing is determined by: Need more than one copy? To determine the actual loads induced on a backfilled structure, use the following information in addition to the actual in-place soil properties to properly calculate the effective stress at the critical location.

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ASTM-C, –

This test method is used for testing concrete manhole sections xstm mortar, mastic, or gasketed joints. Adjusting vacuum pressure Most flexible connectors have a pressure rating of only 10 psi when deflected, which is fairly common in a field installation; therefore we will use the more conservative 10 psi pressure rating as a base point.

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Search book title Enter keywords for book title search. Your Alert Profile lists the documents that will be monitored. Need more than one copy? You may delete a document from your Alert Profile at any time. A vacuum test should not be performed when the hydrostatic head exceeds 22 feet. Leave a Reply Cancel reply Your email address will not be published.

Nails, Spikes, and Cc1244. We have no amendments or corrections for this standard. The values recorded are applicable only to the manhole being tested and at the time of testing. I want to point out the second paragraph on Page 3. Copyright Compu-tecture, Inc. This standard is also available to be included in Standards Subscriptions.

It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the c244 of regulatory limitations prior to use.