wedges

EK563

When a primary flexural crack forms and crosses the reinforcing steel, the concrete adjacent to the crack slips against the steel. Slip, or bond-slip, is defined as the relative movement […]

EK398

During the leveling and plumbing operations wedges and packings are driven into the grout space. Before final grouting these should be removed, otherwise, after shrinkage of the grout filling material, […]