: Apply an acrylic fortifier or a concrete bonding agent with a paintbrush. This seals the old cement and helps the new patch stick.
inch thick over the entire surface after the bonding agent is applied. how to repair concrete window sill
A properly prepared and cured polymer-modified concrete patch, with an integral drip edge and positive slope, will last 5–10+ years. Failure is almost always due to inadequate surface preparation, lack of bonding agent, or skipped curing. : Apply an acrylic fortifier or a concrete
: If rebar is exposed and rusted, it must be cleaned or removed, as it can cause the new concrete to "spall" or crack again. lack of bonding agent