ACI Committee 355's ACI 355.4M-11 - Qualification of Post-Installed Adhesive PDF

By ACI Committee 355

ISBN-10: 0870314092

ISBN-13: 9780870314094

This ordinary prescribes checking out and evaluate specifications for post-installed adhesive anchor structures meant to be used in concrete lower than the provisions of ACI 318. standards are individually prescribed to figure out the suitability of adhesive anchors utilized in uncracked concrete merely, or in either cracked and uncracked concrete. standards are prescribed to figure out the layout parameters and function type for adhesive anchors. integrated are exams of the adhesive anchor approach for bond power, reliability, provider stipulations, and qc. specified inspection (13.3) is needed in the course of anchor install as famous in 10.22. desk 1.1 presents an outline of the scope.

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Extra info for ACI 355.4M-11 - Qualification of Post-Installed Adhesive Anchors in Concrete and Commentary (Metric)

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3 Slices removed from storage should be tested as soon as possible to avoid the potential effects of specimen drying on the measured bond strength. 3, Test 11. 9 The concrete capacity design method assumes that maximum concrete breakout or bond capacity is reached at edge distances equal to or greater than cac. To check this assumption for a specific anchor system, tests are performed with single anchors in a corner with ca1 = ca2 = cac. This edge distance represents the critical edge distance at which there is no edge influence on the tensile capacity of the anchor as governed by concrete failure.

2 Calculate the expected mean tension failure load corresponding to the edge distance and spacing of the anchor group to be tested considering the service-condition tests and effects of reduced spacing and edge distance. 3. 4. 2Tinst. After each increment, inspect the concrete surface for cracks. Stop the test when splitting or steel failure prevents the torque from being increased further. For each test, simultaneously record the torque at first formation of a hairline crack at one or both anchors and the maximum torque that can be applied to the anchors.

1. 7 Install anchors in accordance with the MPII. Perform a minimum of five confined and five unconfined tension tests to failure on anchors in concrete produced in accordance with Mixture Design A and a minimum of five confined and five unconfined tension tests to failure in concrete produced in accordance with Mixture Design B. 7 within the concrete age interval of 28 to 56 days. Confined round-robin tests may be omitted, however, if Eq. (9-1) is fulfilled. 4M-11) AND COMMENTARY Nu is the mean ultimate tension load in unconfined roundrobin tests, N.

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ACI 355.4M-11 - Qualification of Post-Installed Adhesive Anchors in Concrete and Commentary (Metric) by ACI Committee 355

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