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  • Resurfacing concrete. Although concrete is one of the most durable building materials

  • available, time, traffic and the elements can cause the concrete surface to spall, wear

  • and discolor. QUIKRETE Concrete Resurfacer can provide a new, durable, wear-resistant

  • surface on old, worn concrete driveways, sidewalks and patios that will last the life of the

  • concrete. QUIKRETE Concrete Resurfacer will renew your concrete surface at a fraction

  • of the cost to tear out and replace old concrete slabs. As with any concrete repair project,

  • proper surface preparation is essential for a successful result. This is especially true

  • for concrete resurfacer. Old concrete must be rigorously cleaned to ensure proper adhesion

  • to the new surface. A high-strength, 3500 PSI pressure washer must be used to remove

  • any dirt, oil, grease or deteriorating concrete, prior to the application of concrete resurfacer.

  • Concrete Resurfacer is ideal for resurfacing large areas, like driveways, patios and pool

  • decks, but because it sets quickly, it is important to section off your work areas to

  • no larger than 144 square feet. This will allow enough time for placing and finishing

  • the resurfacer, before it begins to set. It's essential that control joints and expansion

  • joints are maintained, to allow for slab movement. These joints can usually be used to define

  • your work area. Weather stripping can be used to prevent concrete resurfacer from spilling

  • into the joints. Before resurfacing your slab, deeply spalled areas and large cracks should

  • be repaired using concrete resurfacer that has been mixed to a trowel-able consistency.

  • The repairs should be allowed to harden, before resurfacing the entire area. To mix concrete

  • resurfacer, a 5-gallon bucket and a 1/2 inch drill and paddle mixer should be used. Hand-mixing

  • in standard concrete barrel-type mixers cannot be used for this application. When mixing

  • or placing concrete resurfacer, as with any cement mix, it is important to wear safety

  • glasses and water-proof gloves. Measure and add 3.5 quarts of clean, cool water to the

  • five gallon bucket, to mix one 40 lb. bag of concrete resurfacer. Then, begin to add

  • the powder to the water, while mixing. Mix for about five minutes, until a lump-free,

  • pourable consistency is achieved. If the mix is too thick, add water, sparingly, to reach

  • the consistency of syrup. If the mix is too thin, additional powder can be added. One

  • 40 lb. bag of concrete resurfacer covers about 90 square feet at 1/8 of an inch thick, so

  • a typical 16 foot by 24 foot driveway would use about five bags of resurfacer. Because

  • the application process is continuous, it is always best to have a few extra bags, to

  • allow for any changes in thickness or waste. Prior to applying concrete resurfacer, saturate

  • the surface with water, and then, remove any standing water. Concrete acts like a rigid

  • sponge. Dampening the concrete will cool the slab and prevent the mixing water from being

  • drawn out of the material, during the resurfacer application. You are now ready to begin the

  • application process. Pour the resurfacer onto the concrete in one-foot wide strips. Then,

  • using a long-handled squeegee, scrub the material into the concrete surface. Working back and

  • forth, evenly spread the resurfacer onto the slab. After about five minutes, a non-slip

  • finish can be applied, using a concrete broom. Make long strokes, across the full distance

  • of the work area, without stopping. All broom strokes should be made in the same direction,

  • for uniformity of appearance. A concrete edging tool can also be used within about 20 minutes

  • of pouring the resurfacer. Concrete resurfacer has a working time of about 30 minutes at

  • 73 degrees. In hotter weather, the working time will be reduced. Using cold mixing water

  • and keeping the bags of concrete resurfacer shaded will help extend the application time.

  • Under normal conditions, no special curing is required. Although, in temperatures over

  • 90 degrees, moist cure with a fine water mist for 24 to 48 hours. Because concrete resurfacer

  • is polymer-modified, temperatures should remain above 50 degrees, for at least 8 hours, and

  • should be protected from freezing for 24 hours after application. Concrete resurfacer will

  • support foot traffic in about 6 hours and vehicle traffic in 24 hours.

Resurfacing concrete. Although concrete is one of the most durable building materials

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B1 INT US concrete resurfacer application mixing slab surface

How to Resurface Concrete

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    劉晉溢   posted on 2016/01/29
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