KWIK HUS-EZ Minimum Member Thickness

Hi Joseph,

Spacing dimensions, edge distances, and concrete thicknesses that are published in the ICC-ES evaluation reports for mechanical anchors and adhesive anchors installed in concrete are based on specific tests in the ICC-ES acceptance criteria for mechanical anchors in concrete (AC193) and the acceptance criteria for adhesive anchors in concrete (AC308). The tests are noted in Section 9.3 of AC193 and Section 9.10 of AC308. The tests are related to the installation torque, and the dimensions depend on whether or not 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 in the ESR 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. If the concrete member is thinner than 6", for a 3/4" KH-EZ, onsite testing is recommended to determine if the anchorage is suitable in the given condition.

Regards,
Ashley