Get matched with top concrete resurfacing pros in Yah-ta-hey, NM

A layer of exposed aggregate concrete should be 1 to 2 inches thick if you’re installing it on top of existing concrete. If you’re pouring a new slab with the finish, slab thickness will depend on the application. Exposed aggregate concrete driveways should be 4 to 6 inches thick in most cases or 8 to 12 inches for commercial vehicles. Sidewalks, patios, and walkways should be 4 inches thick.

Concrete resurfacing is the process of applying a new, thin layer of concrete over an existing concrete slab to enhance its appearance and durability. The terms 'concrete resurfacing' and 'concrete overlay' are often used interchangeably, though the exact meaning can vary between contractors. Generally, both refer to applying a layer of pre-blended concrete, typically between 1/4-inch and 1-inch thick. Some contractors may use 'overlay' to describe a thicker application that adds structural integrity, while 'resurfacing' might refer to a thinner, more cosmetic layer. This process is a cost-effective alternative to completely replacing the concrete, as it uses significantly less material than pouring a new 4-inch slab. Resurfacing also provides an opportunity to add new colors or stamped textures. Other names for this process include concrete restoration, concrete refinishing, and concrete rejuvenation.

You'll find a slurry of natural and synthetic polymers, rubbers, epoxies, and resins used to bond old concrete to new concrete. The right bonding agent depends on the method of concrete pouring you choose and whether you're adhering concrete over concrete or concrete over sand and gravel. Some concrete resurfacing mixtures contain bonding chemicals as well.

You can apply an exposed aggregate finish to existing traditional concrete, but you’ll need to resurface the concrete and include aggregate in the top layer of concrete. You’ll also need to prepare the surface beforehand to ensure a good bond between the materials. Adding exposed aggregate is a job best handled by a concrete professional.