Properly clean the surface and make necessary repairs as described on the bag. Extending the life of your asphalt overlay one way to get a longer lasting asphalt overlay over concrete is to remove and replace just the bad areas of concrete instead of entire concrete slabs. Overlay concrete for crack repair in concrete structures. Concrete resurfacing using an overlay can make an old, cracked and pitted concrete patio look like new again. Suretex is a concrete knockdown overlay that has larger slightly larger aggregate than other overlays to help creates deeper textures and designs. Surebond is a single component, just add water, cementbased overlay bonding agent specifically developed for use with surestamp and deep patch. Dec 17, 2018 a decorative overlay could be a lovely addition to your front walkway. Latex modified concrete for bridge deck overlays cemen tech. Were so excited to start launching our new product in 2019 concrete overlays and the howto videos to go along with them. In certain situations, asphalt overlay can be applied to a concrete paved surface. Doody and rick morgan the results of a survey of polymer concrete bridge deck installations test patch and overlay in new york and the results of a canvassing of the experiences of other states with these overlays are summarized. You can also buy floor leveling and patch products along with moisture mitigation and subfloor primers from trusted brands like schonox, usg.
Bonded concrete overlays for repairing concrete structures. It is a preblended cement and sand mixture that also has the. Dampen old concrete slightly before applying the cement paint. Cover the overlay with plastic to cure it for 48 hours. Asphalt works as a driveway base under concrete only when it is strong, stable and at least 2 to 3 inches thick. Interior overlays are used when a concrete floor needs to be resurfaced and the owner wants an acid stained look or a polished appearance. How to repair concrete with overlay resurfacing products youtube. It is designed specifically for polishing and decorative flooring applications.
Ppc 1121 polyester polymer concrete kwik bond polymers. Adhesives, sealants and tape concrete, asphalt and masonry concrete and asphalt repair patches and compounds. Oct 14, 2019 resurface and patch cracked and worn surfaces on your driveway or sidewalk to a smooth, new finish. There is nothing in basic portland cement that will act as a bonding agent.
Concrete knockdown overlay thicker textures suretex by surecrete. Polymer modified pm structural repair is a multiuse product that can be used to fix damage to concrete and masonry surfaces. These materials are so versatile you can get really creative. Additional elements in overlay projects full depth patching when the concrete is unsound to the top layer of the bottom reinforcin g, all concrete will be removed and a full depth patch is warranted. A complete concrete surface cleaning for optiminal adhesion. Premixed concrete repair use for filling and sealing cracks in concrete up to 1 inch wide. Spec chem duo patch concrete overlay janell concrete and. Concrete knockdown overlay thicker textures suretex by.
Shop our extensive collection of supplies for making concrete countertops, decorative concrete sealers, stains, or epoxy floor coating. The bonded concrete overlay is a part of a composite concrete structure. A twocomponent, trowelable, polymer modified patching and topping system for horizontal concrete. Because both mixes are highly engineered, mixing at the job site eliminates several downsides associated with conventional delivery systems, including. Pressure wash the concrete, working in one direction so the debris will flow in one. Meets or exceeds astm c928r3 standard specification for packaged, dry, very rapid, hardening cementitious materials for concrete repair. If the concrete below wants to move, it can result in a crack in the overlay. Concrete overlays can last years if the concrete work is done properly. Use sakrete flocoat, a polymermodified, flowable, resurfacing material, as an alternative to expensive concrete replacement. Spray the polymer concrete on the surface using a hopper gun. But, more often than not, its movement in the substrate that will produce cracks in the overlay. The use of a strong adhesive to bond the asphalt pavement to the concrete below. Overlay stones no larger than thickness of the overlay. Fishman concrete overlay repair, howto ardex trm youtube.
Proper installation of any paving fabrics over the concrete expansion joints and cracks. Tru pc selfrepairs damaged floors or creates a brand new floor. Five star products concrete repair and overlays products. Asphalt overlay is an option for some asphalt surfaces that are in disrepair, but paving. Holes or cracks with depth of 2 inches or more require filling before concrete overlay is applied. Please reduce your quantity or change your pickup store to check stock nearby. The concrete walkways you describe do not sound like good candidates for an overlay.
The range of repair is for a maximum of 12 down to feather edge. The new concrete overlay kits are diy friendly, so dont be intimidated. How to level a concrete floor selfleveling overlays. Typically installed as a standalone overlay for concrete substrates, it provides an economical solution that has excellent abrasion resistance properties and.
Dont try to use a regular concrete mix for the 12inchthick area or over the plywood, rather use a polymer overlay cement rated for that thickness. Ppc easy patch is successful in a broad range of climates, even cold temperatures and humid conditions. Our condominium board plans to have a decorative concrete overlay applied to our 35 yearold concrete walkways, which have existing cracks and many unlevel areas. Because overlays are designed to provide protective concrete. Five star mp epoxy patch is a three component, 100% solids, multipurpose epoxy patching mortar for the repair of floors, trenches and ramps. Selfleveling overlays can fix a floor thats not level. Portland cement concrete works well in mass and provides great compressive strength but not bond. Overlay cements are sticky and require experience in terms of troweling a finish. If you find yourself in need of repairing your concrete overlay, here are the steps to take to remove it first. Talk to a concrete pro to ask about resurfacing products that can help your project stand out. Concrete broom overlay resurface old concrete mix 6000psi. Then, if you want to patch the concrete, apply a thin layer of cement paint, pour a wellmixed concrete patch into the holes, and wipe the surface with a wooden float. These flowable polymermodified toppings have the ability to self level without troweling, making them a quick solution for smoothing and.
No overlays are structural, says seth pevarnik, manager of technical service at ardex engineered cements. Suretex is specially formulated for quicker dry time and can be applied with a trowel or sprayed with a hopper gun. A pavement overlay is the application of a layer of bituminous paving to an existing paved surface. Concrete that was not properly mixed well when poured is especially prone to damage. When a concrete surface deteriorates there is not an easy option to repave the surface with concrete without ripping the surface up entirely.
Using special techniques and tools, skilled installers can precisely replicate the look and feel of natural stone, brick, tile, or slate. Doody and rick morgan the results of a survey of polymerconcrete bridge deck installations test patch and overlay in new york and the results of a canvassing of the experiences of other states with these overlays are summarized. Tru pc is a highperformance architectural topping that simulates polished concrete. Cracking the case of cracks in overlays and toppings concrete. Apply the cementitious overlay material, letting some of it fill the routed cracks. Use secret cement paint to bond overlay to the old concrete.
A concrete overlay makeover how i resurface ugly concrete. Aug 28, 2017 if your patio, driveway, or other concrete slab is falling apart and losing its appeal then you need to give it a facelift. Meets or exceeds astm c928r3 standard specification for packaged, dry. Rapid set tru pc is a favorite product of custom concrete prep and polish. This patio, i repaired the small cracks, lightly ground the surface, applied the overlay with a hand trowel at about 116 inch thick, then dragged a broom across the overlay to give it a broomed finished look. Aug 14, 2018 when an asphalt pavement surface deteriorates to the point of needing repair, an asphalt overlay is an effective solution. Overlay concrete change the appearance, texture, and elevation of the original concrete surface and a variety of different colors and finishes are available. How to resurface painted concrete home guides sf gate. Use concrete with at least 3,000 psi and good adhesion. Mix concrete resurfacer according to instructions on the bag.
Stamp the concrete with a stampable mat or skin, if applicable. You can also mill or grind the concrete prior to the overlay to ensure the new asphalt overlay will have a good bond to the concrete. When it does, you either have to patch it or replace it. Repairing cracks before applying overlays concrete construction.
The amounts of traffic, existing pavement condition, as well as an individual customers needs are considered in determining thickness. Ppc 1121 polyester concrete can be placed between 34. People install these overlays for different reasonssometimes they are necessary, as a repair step in fixing a badly flawed concrete floor. For example, different types of asphalt fabric can be installed to reduce the amount of reflective cracking that can occur in an asphalt overlay on concrete. Jun 24, 2014 a complete concrete surface cleaning for optiminal adhesion. Spalling, the pits that form in concrete, happen when too much water is used in a concrete mix, weakening it.
Though concrete is wellknown for its toughness, it can degrade over time, becoming marred with pits or cracks. What are the side effects of paving asphalt over concrete. Tape off the edges where you dont want new concrete. Five star products mp epoxy patch concrete repair and. Spec chem duo patch concrete overlay carrollconstsupply. Pouring a skim coat over the surface is exactly what your concrete needs. Patch over with the polymer resin concrete overlay. Resurface and patch cracked and worn surfaces on your driveway or sidewalk to a smooth, new finish. The simplest solution is to prevent cracks before they happen before you apply the overlay.
Section off work areas no larger than 144 square feet. Why did this integrally colored stampable overlay crack so drastically. Mobile concrete mixers are commonly used to produce highquality mix designs used to produce a latex modified concrete bridge deck overlay. A concrete overlay is a great way to patch your spalling concrete sidewalk, driveway or stucco. In this video, we demonstrate how to properly repair a joint intersection on a concrete overlay system that was not properly bonded with the. Concrete overlays are finishes that cover up concrete slabs.
Adding pattern, texture, and color to exterior concrete slabs, including patios, pool decks, driveways, and sidewalks. Prospec rapid patch commercial dot repair is a rapidsetting, highstrength, polymermodified, onecomponent hydraulic cement mortar designed for concrete repair and overlay applications requiring high durability. Tips for a better asphalt overlay before applying an overlay, repair damaged or distressed areas in the existing pavement. Follow these steps to resurface and patch concrete surfaces. How to level a concrete floor selfleveling overlays the.
The thickness of an overlay is typically 1 12 to 3 inches. Five star mp epoxy patch is specifically engineered to provide superior performance in dynamic load or chemical exposure environments. At other times, the overlays are made from epoxies and owners use them for decoration. Product costs, availability and item numbers may vary online or by market. Tf structural is a twocomponent, matte finish, interiorexterior concrete coating and structural repair mortar. Its only function is to join these products to the host surface like concrete.
Cover the patch with plastic sheeting while it dries and finish by spraying water on the new concrete for 4 to 7 days. Jul 17, 2017 asphalt works as a driveway base under concrete only when it is strong, stable and at least 2 to 3 inches thick. Selfleveling overlay systems for concrete floors offer numerous advantages. A decorative overlay could be a lovely addition to your front walkway. As long as your walkway isnt cracked all the way through, you can coat the slab with a concrete resurfacer, a noshrink blend of portland cement, sand, and polymer additives that fills divots and makes a uniform finish. Nov 08, 2017 so depending on how bad the concrete is before you do an asphalt overlay will determine how long the asphalt overlay will last. My recommendation is to staple down diamond mesh over the plywood before placing the overlay. Various thickness overlay concrete construction magazine.
Cracks in latexmodified concrete overlayshow they get there. Smooth the area with the surrounding concrete surface. Concrete bonding agent for overlays by surebond by surecrete. Concrete is marvelous stuff but in time it will deteriorate. This adds structural capacity and smoothness of ride all while improving the exterior appearance of your property. Overlays may bridge nonmoving cracks, but the active cracks may appear again. Is your concrete damaged due to spalling, scaling, cracking, deicing agents or a pour finish. These flowable polymermodified toppings have the ability to self level without troweling. The reason to use an overlay is if the concrete in place is in good shape and or it is located in an area thats not easy to access, resulting in damage to other structures or surrounding landscaping during the removal process. Overlays are surface depositions of 6 mm or greater in thickness that can be bonded, partially bonded, or unbonded to the surface of the concrete.
They dry very fast and can be walked on in a couple of hours. Duo patch is ideal for resurfacing concrete, small or large areas, interior and exterior applications. There are additional things that can be done prior to the overlay to get the maximum life out of it. This overlay is easy to mix, just add water and one of surecretes standard 30 overlay colors. Before concrete installation begins, the asphalt is inspected and repaired as needed. You can also buy floor leveling and patch products along with moisture mitigation and subfloor primers from trusted brands like schonox, usg durock, surecrete, sika, cheng, interstar. They can correct uneven floors, repair damaged concrete, and provide a smooth and durable new surface for decorative treatments. Adhesives, sealants and tapeconcrete, asphalt and masonryconcrete and asphalt repair patches and compounds. This allows for grade corrections if necessary, as well as a variety of uses from polyester concrete overlays, polyester concrete patching material, to high performance polyester concrete expansion joint headers and more. When to use a polymer overlay the concrete network. This patio, i repaired the small cracks, lightly ground the surface, applied the overlay with a hand trowel at about 116 inch thick, then dragged a broom across. If your patio, driveway, or other concrete slab is falling apart and losing its appeal then you need to give it a facelift.