By ACI Committee 355
This common prescribes trying out and review necessities for post-installed adhesive anchor structures meant to be used in concrete less 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 class for adhesive anchors. integrated are tests of the adhesive anchor procedure for bond energy, reliability, carrier stipulations, and quality controls. specific inspection (13.3) is needed in the course of anchor install as famous in 10.22. desk 1.1 offers an summary 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)
1 Purpose—These reliability tests are used to assess the sensitivity of the anchor system installed in low-strength concrete to a wide crack in the concrete passing through the anchor location. 2 General test conditions—Perform tension tests in cracked concrete. Tests on adhesive anchors shall be confined tension tests. 3 Initiate the crack in the test member and install the anchor at the crack location so that the axis of the anchor lies approximately in the plane of the crack. 2. Open the crack by the specified value Δw.
C) Apply a constant tension load Nsust,ft as given by Eq. (7-2). Raise the temperature of the test chamber at a constant rate to standard temperature for 72 to 96 hours while monitoring the displacement response for each anchor. A thermocouple inserted into the test member may be used to confirm test member temperatures during the test. Once the test member attains standard temperature, conduct a confined tension test to failure with continuous measurement of load and displacement. 3, Test 9c. 7 Cure time of most adhesive compounds is inversely proportional to temperature.
3 Initiate the crack in the test member and install the anchor at the crack location so that the axis of the anchor lies approximately in the plane of the crack. 2. Open the crack by the specified value Δw. Perform a confined tension test to failure with continuous measurement of load, displacement, and crack width. 2, Test 4. 5 mm. This corresponds to a tolerable crack width for interior exposures. 1 Purpose—These reliability tests are used to assess the sensitivity of the anchor system installed in high-strength concrete to a wide crack in the concrete passing through the anchor location.