Concrete base material is classified as either cracked or un-cracked. It is not possible for a reinforced concrete structure to be built without having cracks under working conditions, provided that they do not exceed a certain width limit, however it is not always necessary to regard cracks as defects in a structure. Concrete can often crack due to age, temperature variations or loads. Research and tests showed that cracks will run through these weak points where anchor exists and will influence anchor behavior and performance, therefore only specific anchors are qualified to work in cracked concrete.
This webinar will have a deep dive on how cracked concrete can influence fastening design