Concrete Overlays & Toppings

Overlays and toppings typically range from 1/16 to ¾ inch deep and are applied to structurally sound concrete slabs to improve aesthetics, protect surfaces and extend life in lieu of ripping out and replacing existing slabs. There are several types of overlays including spray applied, troweled on, self-leveling, stamped and microtoppings.

Why Mock-ups of Polished Concrete Overlays Matter

Polishable overlays are a popular alternative to polished concrete where the existing concrete slab isn’t a good candidate to be polished. Infilling trenches, patching, spalling and removing existing modular floor coverings often result in a concrete surface that doesn’t meet with customer approval.

Consider an Overlayment’s Tensile and Flexural Strength

Compressive strength — the ability of a material to withstand being compressed or pushed together — is often used to determine mortar and concrete’s quality. This makes sense for floors and overlayments as the primary forces applied to them are downward, compressive loads from traffic, equipment or anything affected by the force of gravity.

Today’s Concrete Overlays are Durable and Good Looking

A baker knows when there’s a disaster in the kitchen, sometimes a little bit of icing can go a long way toward redemption. Concrete contractors have a similar option with overlays and an unsightly slab: The overlaid section not only looks better but the chemistry behind today’s overlay offerings often creates a much more durable surface than what was already there.

Quartz Versus Limestone: Which sand is better in concrete overlays?

Concrete overlays’ strength comes from combining specific amounts of portland cement, sand, water and polymer. Sand type is an important component in decorative concrete and concrete overlays because overlays are typically applied thinner than standard concrete, yet still need to withstand the forces of foot and automobile traffic.