North & East re-bar steel work. A re-bar is a round steel rod that looks like raised ridges that form figure eights around the steel rod from one end to the other .So that other re-bar can be tied to it,with tie wire. The re-bar in forces  the concrete so if a crack should developed  in the basement wall due to the settling of the earth below the footer ,the re-bar helps hold the  footer & basement wall from collapsing  .