How to Apply Mortar to Concrete Stone

Apply mortar to concrete stone with the proper method.

Mortar is a common masonry material often used to bind together brick or stone. Often, those attempting to apply mortar for the first time have trouble keeping the material bound to the surface. If you want to apply mortar to concrete stone blocks, you can do so easily with the help of a bonding liquid. Using the bonding liquid will ensure that the mortar properly adheres to the concrete stone and remains in place for years.

Things You'll Need

• Wire brush
• Concrete bonding liquid
• Paintbrush (medium)
• Mortar mix
• Water
• Bucket
• Flat steel trowel

Instructions

1. Brush down the concrete stone with a wire brush to remove surface debris and further texture the stone.

2. Paint a thin layer of concrete bonding liquid on the concrete stone using a medium-sized paintbrush.

3. Mix the mortar with water in a bucket in the proper ratio outlined on the mortar's packaging. Stir thoroughly to achieve a uniform consistency.

4. Scoop the mortar onto the concrete stone using the trowel. If you want to fill in spaces, pack the concrete into the space using the pointed end of the trowel. Smooth over the mortar with the flat edge of the trowel for a professional finish.

References

• "The Old House Handbook: The Essential Guide to Care and Repair"; Roger Hunt; 2008