The concrete wall I want to install the 3/8" anchor in, is only 3" thick. Minimal thickness required is 3.25"
How can I de-rate this connection and calculate a lower strength for this application
Hi Herman,
Spacing dimensions, edge distances, and concrete thicknesses that are in our published data for mechanical anchors or adhesive anchors in concrete are based on specific tests. The tests are related to the installation torque and the dimensions depend on whether the slab cracks during the test or if the concrete spalls on the bottom of the concrete during drilling. Thus, if anchors are used in conditions outside of the published dimensions for minimum spacing, edge distance, and concrete thickness, there is an increased risk of splitting the slab when the installation torque is applied and an increased risk of spalling the back side of the concrete when the hole is drilled. The final decision is left to the EOR.