Read e-book online ACI 355.4M-11 - Qualification of Post-Installed Adhesive PDF

By ACI Committee 355

ISBN-10: 0870314092

ISBN-13: 9780870314094

This typical prescribes checking out and assessment requisites for post-installed adhesive anchor structures meant to be used in concrete below the provisions of ACI 318. standards are individually prescribed to figure out the suitability of adhesive anchors utilized in uncracked concrete purely, or in either cracked and uncracked concrete. standards are prescribed to figure out the layout parameters and function classification for adhesive anchors. incorporated are checks of the adhesive anchor method for bond energy, reliability, provider stipulations, and qc. targeted inspection (13.3) is needed in the course of anchor set up 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)

Sample text

1 Measure the load-displacement relationship up to load Nw. At load Nw, measure the displacements of the anchor and the crack-opening widths Δw1 and Δw2, either continuously or at least after 1, 2, 5, 10, 20, 50, 100, 200, 500, and 1000 cycles of crack opening and closing. 3 mm and perform a tension test of the anchor to failure with continuous measurement of load and displacement. 3, Test 4. 16 The test for sensitivity to freezing and thawing is intended to simulate in-service temperature fluctuations that the anchor might be subjected to during its service life.

Crack closing is accomplished with the embedded reinforcement and may be influenced by slippage of the anchor in the crack. It is not intended that crack closure should be controlled externally, for example, with a hydraulic cylinder. 1 Measure the load-displacement relationship up to load Nw. At load Nw, measure the displacements of the anchor and the crack-opening widths Δw1 and Δw2, either continuously or at least after 1, 2, 5, 10, 20, 50, 100, 200, 500, and 1000 cycles of crack opening and closing.

1 Purpose—These tests are used to establish the bond resistance of the anchor system. 7 in both low- and high-strength concrete. 3. 3, Test 9a. 2—elevated concrete temperature). Temperature Category A provides a standard approach that assumes a potential long-term elevated temperature consistent with hot climate exposures and a short-term temperature reflective of diurnal cycling in such climates for a given sun exposure duration and concrete mass. Typical sources of elevated concrete temperature are anticipated, with the exception of heat of hydration in earlyage concrete, extreme elevated temperature (for example, boiler rooms), and exposure to nuclear radiation in containment structure.

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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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