Mar 28, Drilling four holes in the slab with a masonry bit on a drill is required. Depending on the size of the slab, the number of holes may vary. At least one or two holes are needed in the

Aug 07, Cut your foam backer rods to the proper length for your expansion gap and press them into the gap. Clean the area thoroughly and cover the rods and the gap with self-leveling

Jun 08, Dig a 4-inch wide trench along the sides of the slabs from the crack or gap closest to the house all the way down to the street or sidewalk. This trench should be as deep as the

Sep 17, Using the ACI 211.1 method, here is an abbreviated run-through on how to design a Choose the target slump. Choose the maximum aggregate that the larger the better for reducing shrinkage and curling. Estimate the water and air content using ACI 211.1 Table 6.3.3. Select the water-cement

Feb 14, Fill the crack with urethane caulk, similar to what you would use for driveway caulk. It works perfectly as a concrete expansion joint sealant. Snip the opening of the tube at a 30-degree angle, making the opening the same size as your gap. Use a smooth, even motion, filling the crack flush with the surface, beveling it if it\'s against the

Apr 11, The writers at Bob Vila state that the best kinds of concrete sealers for driveways are epoxy, latex patching and mortar mixes. You should use a mortar mix for cracks wider than inch, but opt

Feb 07, Continue switching from one hole to another until the void is compley filled. Step 6. Fill in the holes. Fill in the holes with a mixture of concrete mortar. Make sure to level the mortar to the slab using a trowel. Then allow the concrete to cure for two to three weeks if you used sand-cement

Concrete Driveway Resurfacing Cost. Concrete driveway resurfacing costs to per square foot or to for an average two-car driveway. Resurfacing makes the driveway look new and is cheaper than the cost of installing a new concrete driveway at to per square foot. Adding a heated driveway system costs to per square

The ideal concrete mix to use for constructing a driveway should have at least a 4,000 psi compressive strength, a water-cement ratio of 0.50, aggregates no larger than 1-inch in size, and a slump thickness of 4 to 5 inches. In colder climates, the mixture should have an

So, I panic about it. But if got an area sunken in where the driveway is, what you are going to have to do is cut that driveway out, fill that area in, tamp it down, pack it properly and have the driveway restored in that particular area. The driveway sunk yet. just where it always has

4. Mix quick-setting premix concrete in a bucket or wheelbarrow, using a small shovel. This product sets up in 10 minutes, so only mix a small amount at a time. Use a ratio of 1 part water to 5

Sep 22, STEP Insert the Backer Rod. Backer rod is a flexible rope that compresses to fill the It gives the sealant something to cling onto.It also helps reduce the quantity of sealant that you will need to fill the The backer rod is a lot cheaper than the sealant for the same volume of the

Jul 17, Prepare the concrete repair product as directed on the instruction label. Use a trowel or putty knife to fill the gap with the prepared product. Make sure to press down hard into the gap to eliminate any air bubbles. Smooth the product out on the surface, and prepare it for drying according to the product

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Jun 16, The best concrete mix for driveways is at least 3500 psi compressive strength and 5-6 inches thick over compacted gravel and earth with a water to cement ratio of .50 and aggregate less than an inch. Often times additional reinforcements are added like fiber, wire mesh or rebar and in cold climates the air-entrainment value should be around

Best concrete mix ratio for driveway repair. The ideal concrete mix for a driveway should have a slump of 4 to 5 inches, aggregates no larger than 1 inch in size, a water-cement ratio of at least 0.50 to increase concrete longevity, and a minimum

Aug 31, Hold the trowel over the gap and tilt it to pour the mortar into the space. Then scrape around the slabs to get any excess mortar into the gap. If the mortar overflows, just scrape it forward to fill more of the gap. Tap the trowel on the slab if