How to Grout in a Brick Sidewalk

Completely clean the brick sidewalk of debris before you begin grouting it. If you have covered the sidewalk with a concrete blanket to protect it from the elements, remove the blanket and check the joints. Use a whisk broom to clean out the joints as you grout, but keep a vacuum or a leaf blower handy to clean out the debris.

Mix the grout in a container and add sufficient water as per the manufacturer’s instructions on the container the grout came in. Use a low-speed drill under 300 RPMS or mix the grout by hand with the trowel. Add water with a measuring cup if you are mixing a full bag, and eyeball the water amount if you are mixing only a partial batch. You want a consistency of thick cake batter. Let the grout sit and soak in the chemicals for 10 minutes, then remix it for use.

Insert the appropriate-sized grout tip into the bag and fill the bag with grout by scooping grout into the bag from the bucket with your margin trowel. Your grout tips needs to be just small enough to slide into the joint, but not so small it falls completely into the joint. Press the tip against a joint and apply pressure to the bag to force grout out of the tip and into the joint. Fill all of the joints full with grout and let them sit for a minimum of 20 minutes before tooling them.

Place the jointer tool against the joint so that the edges rest on the face of the tile and the edge of the jointer is dipped into the joint itself. Pull it along the grout joints to cut off any excess grout and make all of the joints uniform for a finished look. Whisk broom the surface after you are finished to remove any excess crumbles.