How to Build a Concrete Table. Concrete furniture looks amazing and really is cheap to do. Tables can be made without expensive or specialty tools and will jazz up. Current structural design, construction support, inspection and maintenance engineering of all State highway structures. Links to motor vehicle and road information. Resurfacing concrete is a breeze with Perfect Patch It permanently repairs cracks, holes and pitted concrete surfaces. Available Today at Mr O Chem BUY EVERYTHING YOU NEED TO COMPLETE THIS PROJECT HERERedoing a kitchen or bathroom with concrete countertops is a home improvement project you can do yourself. How to repair an expansion joint or a crack that has fail in a concrete driveway. Using backer rod and self leveling caulk. Check out how to craft and make with concrete, tips and tricks for concrete crafting and information about various concrete mixes, how to finish. Experimenting. If you are really into this stuff, and enjoy experimenting, I recommend you buy a couple of bags of premixed dry concrete at Home Depot about 67. Perfect Patch Mr O Chem. Perfect Patch, the most effective permanent 1. Epoxy concrete patching system. Extremely strong formulation makes Perfect Patch the ideal 1. Resurfacing concrete is a breeze with Perfect Patch Feather Edge down to a 11. Three part mixture includes epoxy, hardener, and silica filler. Apply with a trowel. With expansion and contraction of concrete due to the freeze thaw cycles concrete slabs will eventually develop cracks. This can be augmented at the cold joints of 2 slabs poured at different times. The primary objective of patching and sealing a crack in the patio, driveway or walkway is to stop water seepage from getting underneath the concrete where the ground becomes unstable holding the concrete slab. Concrete Crack Sealer Home Depot' title='Concrete Crack Sealer Home Depot' />The best way to seal a crack in the concrete slab is by using a 1. Using sealers or fillers from the local big box store like Home Depot will only be temporary. You must use a 1. Here is what you do 1 Clean any loose debris out of the crack or pitted area on the concrete slab. Use a pick, screwdriver, or stiff broom. Next Mix the Perfect Patch Epoxy parts the resin and hardener together in the included pail. Fill the crack, hole or pitted area. Use a trowel and featheredge as thin as you can giving it a smooth surface. Let it dry. Again, all you do is mix the resin, the hardner, and the aggregate together which makes a 4. PSI. If you have any concrete surfaces that are worn out or have hairline cracks and crevices applying Perfect Patch will restore and in most cases exceed the strength of the original concrete. Once you put down Perfect Patch its permanent and 1. X stronger than the surrounding concrete. Concrete surfaces in manufacturing plants, garages, sidewalks, and patios are ideal places to apply Perfect Patch. Even 1. 0,0. 00 lbs forklifts with heavy loads that create heavy abrasive traffic to floors are not goingto put a dent in Perfect Patch. Concrete Sealer System. Perfect for High Traffic Areas and impervious to Corrosives, Rock Salt, and chemical spills. Use on walkways, stair cases, streets, walls, ramps, and any concrete surfaces indoors or outdoors. Perfect Patch can be used in federally inspected food processing plants. Dries in 4 6 hours and is ready for light traffic in 1. Three part mixture includes epoxy, hardener, and Aggregate. Apply with a trowel, hand tamp or roller. The 5. 0 lb. pail covers 1. Pot life is 4. 5 6. Color is concrete gray. Othercolors available by calling 8. Dries to a permanent 1. PSI All directions are on the label. Resealable lid only use what you need long shelf life store the rest for concrete repair needs as they arise. Keep them Watertight and Crack Resistant. Concrete expansion joints are important for your sidewalk or driveway. Keeping your joints watertight will prevent moisture from seeping under concrete pads and causing them to heave or sink. This post shares how to accomplish this task. The purpose of a concrete expansion joint is to allow the pads to expand and contract get bigger and smaller with temperature humidity changes. If youve got kids think of the expansion joint as yourself and the concrete pads as your children queue memory of standing between two kids as they try to tear each other apart. Well, this is how I feel sometimes with my daughters is it bad if I view myself as an expansion joint that buffers arguments about clothes, food, and hair. Good news Protecting and repairing a concrete expansion joint is super easy. And its far cheaper to do this weekend project than it is to hire a contractor to replace a severely damaged concrete driveway or sidewalk. Here are the supplies youll need. This supply list may sound intimidating because of the angle grinder. But what better time to begin using one of these awesome tools, and they can be very affordable. So lets get started and seal your concrete expansion joint so its protected from the effects of weather Removing Old Material from a Concrete Expansion Joint Concrete expansion joints are also known as isolation joints. Like I said in the intro these joints allow concrete pads to expand and contract during freeze thaw cycles. Without a concrete expansion joint your sidewalk or driveway would crack. If you look at the expansion joints between your concrete you might see black felt or old sealant. Old sealant and worn out felt needs to be removed. When I called Sika, the company that makes the self leveling sealant for this kind of project, they told me to use a utility knife to remove old material and clean off any remaining residue with acetone. If you do this step, make sure the Acetone flash dries Sika said to wait about 1 hour. You could give this utility knife technique a try. But I found that the people who owned our house applied a layer of new sealant over an old layer. And I had a true hot mess because both sealants were pulling away from the concrete. If youre in the same predicament, using an angle grinder with a standard cutting wheel is the way to go. Sure, neighbors might think youre a bit crazy. But they also will think twice about sending their kids over for fundraisers which could be a good thing if theyre selling wrapping paper or other stuff, bad if theyre offering Girl Scout cookies. Yes, the angle grinder is an extra purchase but you can get one cheaper than a pair of running shoes. And if youre only going to use the grinder for one project you could resell it on Craigslist in case you havent heard of Craigslist check it out here www. In my example I had to cut through two layers of old sealant. The angle grinder cutting wheel had to penetrate about 12 to 1 inch down through the sealant layers. You should also remove any old foam backer rod that is beneath the sealant Ill explain what this is in the next section. The concrete joint doesnt have to be perfectly clean for the new sealant. And old sealant thats left behind after you use the angle grinder will be pretty well adhered to the concrete and wont interfere with the new sealants bonding capacity. Loose sealant on the edge of the expansion joint can be scraped off with your utility knife. This step is perhaps the most important one. Its definitely the most time consuming. Make sure you wear safety glasses and protective gloves since the cutting wheel sparks a bit when it occasionally touches the concrete. Heres a short video to give you an idea of what needs to be done to remove old sealant from a concrete expansion joint. Concrete Expansion Joints Part 1 Remove Old Sealant. Prepping Your Concrete Expansion Joint for Sealant. If youre as nerdy as me when it comes to remodeling you may have wondered what the heck that rubber stuff is between concrete pads or walkways. Its okay if youve never had this thought, this means youre normal and the rest of us DIYers are at risk of tripping over ourselves while pondering such questions. The stuff that looks like rubber is a self leveling sealant. The brand you can find at the local store here in the states is called Sikaflex Self Leveling Sealant heres a link to the product description on Sikas website http usa. Sikaflex can be used to seal horizontal expansion joints. Its a great product because it remains permanently flexible, dries quickly, sticks to anything, is self leveling, and highly resistant to weather conditions. You should apply Sikaflex when the temperature is between 4. F 1. 00. F. The ideal temperature is in the middle of this range because the joint will be less likely to be fully contracted or expanded. Sikaflex will be tack free in 1 to 2 hours and fully cured in 3 to 5 days. I didnt drive on it for 5 days. Who wants tires tracks of sealant on their driveway not me and I certainly dont want to explain this to my wife. Also, make sure rain isnt in the forecast for 2. After removing all the old sealant use a vacuum or wetdry vac to suck up any debris from your concrete joints. Then use a closed cell foam backer rod in between the joints. Foam backer rods act to fill in space between concrete joints so you dont need to use a ton of self leveling sealant. Heres a BIG TIP the diameter of the backer rod should be 18 inch larger than the width of your concrete expansion joint. This will ensure a water tight seal. Push the backer rod down into the joint with your hand. Death To Spies Moment Of Truth Trainer. The depth of the joint should be a minimum of 14 inch and a maximum of 12 inch below the concrete pads. This means the backer rod should be this far below the concrete pad surface. If your joint is wider than the backer rod you can twist two stands together like rope. Heres a Second BIG TIP double check the backer rod sits beneath the surface of the concrete pad. Otherwise youll have a little hump that develops when you apply the sealant. And yes, Im speaking from experience By the way, the backer rod can be found in the same section as the concrete supplies at the hardware store. Keep Your Concrete Expansion Joint Watertight and Crack Resistant with Sikaflex Sealant. Gather all your old socks and a few worn out T shirts. Youll need them as rags dont whine about using your old Pink Floyd concert shirt, nobody thinks youre cool if you wear it to the mall in 2. Hey, I love Pink Floyd but seriously, if youre reading this youre probably old enough to know they arent touring anytime soon. Sikaflex self leveling sealant comes in two size tubes. The large tube is 2. If you have a huge concrete expansion joint to fill I highly recommend the 2. Youll have to buy a large caulking gun but this will save you a ton of time. Heres a Third BIG TIP Think about how many tubes you need then BUY twice as many. Again, talking from experience here. Its so much easier to buy a ton of sealant then return what you dont use. With the backer rod in place you can cut the Sikaflex tube so that it will make a 14 inch bead. You might be tempted to cut the tube bigger but dont. Once the sealant starts flowing it can be hard to stop and a bigger bead means youll have to work faster. Not to mention, but I will anyway, the huge potential mess you might have. Visualize sealant on your pants, hands, shoes, hair.