Can exposed aggregate be repaired?
The cement in a concrete slab usually holds the surface layer of aggregate in an exposed aggregate slab securely in place. To restore the appearance of the slab, you must patch these damaged areas. An epoxy mix, combined with new aggregate, can provide the patch you need.
How do you fix bad Exposed aggregate concrete?
This uneven exposed aggregate surface needs to be treated with an acid wash. This is one of the few times I recommend an acid for a concrete repair. A strong acid wash should help even out the surface. Start with a muriatic acid diluted 1:1 with water.
How do I restore exposed aggregate?
Oil & Grease Stains The best way to clean oil and grease stains from your exposed aggregate driveway is to apply a driveway cleaning solution that will break down the oil. Luckily, you can make this mixture using household products like dishwashing liquid or baking soda.
Can you overlay exposed aggregate?
If a few aggregate particles come off but the matrix is sound, proceed with the overlay. After any water puddles on the rinsed surface have dried, mix the polymer-modified overlay to a wetter-than-normal consistency, and apply it with a squeegee to fill the spaces between the exposed-aggregate particles.
How do I fix my Pebblecrete?
Loose or drummy areas of pebblecrete should be removed and then repaired using a combination of Epoxacote HF (filled with graded sand/aggregate) and/or Luxapool SEF (Structural Epoxy Filler) or similar epoxy mortar. Loose stones may also be re-adhered in this way.
How do you acid wash exposed aggregate concrete?
An acid-wash treatment (1 hydrochloric acid to between 10 and 20 parts water) is usually necessary to brighten up the stones by removing the fine cement film from the surface. The surface should first be thoroughly wetted to prevent acid soaking into the concrete and weakening the bond to the exposed aggregates.
Can you resurface exposed aggregate concrete?
Exposed aggregate concrete is a decorative finish where the top layer of concrete is removed to reveal the small aggregates beneath the surface. This means if you have an existing concrete surface that is structurally sound, we can resurface it to look like exposed concrete.
Can you stain Pebble concrete?
The finished look is that of pebble sized aggregate throughout the concrete and the coloration is primarily derived from the color of the aggregate chosen. Exposed aggregate can be stained or dyed to shift or change the color upon completion.
Can you pave over aggregate?
If you’ve been thinking about updating your driveway or parking lot, you might be wondering if asphalt can be paved right over the top of the concrete. Well, the answer is yes! It is safe to pave asphalt over concrete. In fact, many miles of concrete roads are paved over with asphalt every year.
Can you pour concrete over aggregate?
If done properly, new concrete can often be poured right over an existing slab. For this to be feasible, the contractor needs to pour at least 2 inches thick, use smaller aggregate, and incorporate reinforcement such as welded wire mesh or fiber mixed into the concrete.