This is the recipe you need if you decide to use lime: It's a fine white powder and it's going to look great on your home. Some great methods and materials transform from history, to legend to myth. Lime is one of those magic ingredients that's rapidly becoming myth. If you want to really make the overlay mixture sticky, then consider adding hydrated mason's lime to the overlay mixture. It should flow out of a wheelbarrow like pancake batter pours from a bowl. You should add enough water to the mix to make the mixture plastic. If you decide to do a thick overlay, here's the recipe I'd use:įeel free to add another half measure of cement for an extra strong overlay. Simply mix the two parts sand and one part cement together before you add any water. If your overlay will just contain sand and cement, make the mixture rich. Simply drive stakes next to the furring strips to pinch them against the existing concrete work. It's not necessary to attach them to the existing slab. The top of these pieces of lumber should be set at the final height of the overlay. Use furring strips that are braced against the sides of the existing concrete work. This sand is perfect for one half to 3/4 inch thick overlays.įor a thin overlay, you need to get fine sand.īefore you mix any material you need to set up some small form boards. If you decide to mix your own, realize that sand purchased from a traditional gravel pit or building supply yard often is available in three grades: fine, medium and coarse.Ĭoarse sand has very small stones in it that can be as large as 1/8 inch in diameter. CLICK THE IMAGE NOW TO ORDER THIS PRODUCT. You just follow the instructions on the label. This is a resurfacer material that's premixed. You can purchase these products already premixed in a bag or pail. In these instances you would use fine sand mixed with Portland cement. Overlays can be as thin as 1/16th inch thick. Small pea gravel often has stones larger than 1/4 inch in diameter, thus it can only be used in overlays that are greater than 3/4 inch thick. The maximum diameter of any stone in a concrete mix should never exceed 1/3 the thickness of the pour. The size of stone in concrete mixes is very critical. If the thickness will be 3/4 inch or less you will not need any small stone aggregate. Hold the wand close to the concrete at a low angle and use it much like a paint scraper trying to get the water jet spray under the thin layers of peeling concrete.īefore you purchase the materials for the job you need to decide how thick the overlay will be. The surface that will receive the overlay must be clean, oil and dust free. The concentrated stream of water removes weak concrete. Industrial-strength power washers can also be used. CLICK THE IMAGE NOW TO BUY THIS GREAT POWER TOOL. If you've got a bigger job that's going to last a few days, you should BUY one, keep it in good shape and then SELL it on Craigslist once done. This is a great demolition hammer tool to chip out rotten concrete. Weak concrete can be removed by hand with a chisel and hammer or you can rent a lightweight demolition chipping hammer that blasts away material.ĬLICK HERE to get FREE & FAST BIDS from local concrete contractors that do overlays. The most important step in the process is to make sure that all loose concrete material is removed. I believe you can tackle this project if you take your time. The best part is that the material cost is minimal and you can do the work on different days to suit your schedule. The new surface will be durable and certainly more long lasting than the original finish if you diligently follow a few simple steps. Believe it or not, this is a great DIY project if you just practice first on a smaller concrete slab. I've got the fix.ĭEAR MARCIA: Resurfacing concrete with an overlay over existing concrete surfaces is a fantastic way to extend the life of a driveway, sidewalk, patio or porch. CLICK this image and listen to the first story - Vic has a gorgeous patio on the back of his house.
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