Comparison of retrofit failure to pull out single anchor of plain steel and deformed cast inplace and post installed chemical epoxy methods

Abstract

One of the anchor functions is to connect the construction steel joint to the concrete to transfer the tensile force of steel to concrete. The research aimed to compare the theoretical and experimental adhesive stress and the pullout capacity of plain steel single anchors and deformed cast in place and retrofit post-installed chemical epoxy sika anchor fix-2. The experimental result of the cast in place method of the plain steel anchors to the theoretical increase by 3.657% and deformed steel anchor increased by 50.13%; retrofit post-installed chemical epoxy sika anchor fix-2 method of plain steel to the theoretical increased by 23.29% and deformed steel anchor increased 63.69% and plain steel anchor method and retrofit postinstalled chemical epoxy sika anchor fix-2 to the cast in place increased by 18.404% and steel anchor deform increased by 8.905%. Therefore, retrofit post-installed chemical epoxy sika anchor fix-2 plain anchor and deformed steel anchor give better results than cast in place theory so that the basis for the planning can be used as the basis for retrofit post-installed chemical epoxy sika anchor fix-2 while overall, deformed steel anchor is still better than plain steel anchor.