By ACI Committee 355
This commonplace prescribes trying out and assessment requisites for post-installed adhesive anchor platforms 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 simply, 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 method for bond energy, reliability, provider stipulations, and quality controls. detailed inspection (13.3) is needed in the course of anchor deploy as famous in 10.22. desk 1.1 presents an outline of the scope.
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Additional info for ACI 355.4M-11 - Qualification of Post-Installed Adhesive Anchors in Concrete and Commentary (Metric)
These tests permit the selection of product-specific values for cac that, in conjunction with some value of hmin, will allow anchor installation without damage in the form of splitting cracks to the concrete. There can be more than one combination of these values. 1 Purpose—This test is performed to determine the critical edge distance cac in test members with the minimum specified thickness for that anchor. 2 General test conditions—Perform tests on single anchors in uncracked, low-strength concrete at a corner with equal edge distances of cac, and test member thickness hmin (Fig.
5 If the test is interrupted, the samples shall always be stored at a temperature of –20°C ± 2°C between cycles. 6 After the completion of 50 cycles, conduct a confined tension test to failure at standard temperature. 3, Test 5. 17 The sustained load, or creep test, is conducted to establish the creep behavior of the adhesive anchor system over its service life. Tests are performed at standard temperature of 23°C ± 4°C, and at long-term elevated temperature. 1. 1 Purpose—These reliability tests are performed to evaluate the performance of anchors under sustained loads at standard temperature and maximum long-term temperature.
Other methods of preventing rotation of the washer shall be permitted, provided it can be shown they do not affect the anchor performance. 3 for adhesive anchors qualified for use in both uncracked and cracked concrete. 2. 3 mm before anchor loading. This crack width is consistent with the expected response of reinforced concrete structures under sustained load. 3 Service-condition tests are to be performed on anchors installed in accordance with the MPII. 1 Prepare test members, install anchors, and test in accordance with Chapter 4 unless otherwise noted.