Concrete breaking. You may need to break up a section of concrete to reach an underground utility in need of repair, or perhaps you’re ready to turn a paved area into a green space. These steps will teach you how to complete this task and to dispose of the waste afterward.
Call the utility company in Miami Fort Lauderdale Florida. Always call the local utility company to make sure there are underground utilities beneath the concrete. Hire a professional in Miami Fort Lauderdale Florida if there are: Digging above a utility line like gas or electric is very dangerous.
Use safety equipment. Concrete removal creates hazardous dust and sharp fragments, so protect yourself and coworkers with safety goggles, dust masks or respirators, steel toe or other heavy boots, thick gloves, and thick clothing that covers arms and legs.
If you’re going to be using power tools, especially a jackhammer, use ear protection.
Cover the slab with plastic sheets to contain dust and debris if practical. This will cause a possible slipping and tripping hazard, and will make it difficult to see your work, but in some situations, it could be worthwhile.
If you don’t use plastic sheeting, protect any nearby windows and breakable objects with plywood sheets to protect the glass from concrete fragments.
Obtain a large pry bar. Whether you’re using a sledgehammer or jackhammer, you may need to pry apart the pieces of concrete as you break them apart.
This job will be much quicker if you have one person breaking apart the concrete and one person following along and prying the pieces apart.
Consider a sledgehammer for thin slabs. If your concrete is 4″ (10cm) thick or less, try using a sledgehammer.
Start at a corner or edge where possible. Keep in mind that the lateral strength of concrete increases with thicker cross sections. You may find that undermining, or removing soil from beneath the slab will help you it breaks away more easily.
Use the pry bar to pull apart the chunks of concrete after you break them apart.
If after ten minutes you’ve failed to make significant cracks or you are exhausted, you may want to try a demolition hammer.
Use an electric demolition. A 60-pound breaker should be sufficient for most home jobs. Only rent a heavy duty pneumatic jackhammer for extremely difficult concrete.
Only use a chisel point bit to break up concrete. This concentrates force for the best results
Let the weight of the machine do the job; it’s not necessary to add force by pushing down. Forcing the bit will cause damage to the machine and possibly wedge the bit.
If the concrete doesn’t crack immediately, stop hammering and move over a few inches. More hammering could get the drill bit stuck and you would have to waste a lot of time pulling it out again.
Break pieces 2–3 inches (5–8cm) away from each other to minimize chances of a stuck drill bit.
Use the pry bar to pull apart chunks of concrete after you crack them apart.
Deal with any mesh or reinforcing bars you encounter. You may encounter supports inside the concrete after you start cutting. Deal with them as you go to separate the chunks of concrete:
If the concrete is held together by wire mesh, you’ll need bolt cutters to snip it apart. Large welded wire fabric will require bolt cutters, but number 10 wire can be cut with side cutting pliers.
Metal reinforcing bars will take much longer to cut apart. Use a reciprocating saw or an angle grinder with a cutoff blade.
Pull apart stuck chunks with a mattock. If chunks of concrete remain locked together, making it hard to break the surrounding area, clear the surrounding rubble and use a heavy mattock to pry them apart:
Determine where you need to break the concrete. If you are looking for a broken water or drain line, and you can locate the general area you suspect the problem to be in, you can save a lot of work and expense. Here are some things to look for:
For plumbing problems, try to determine the location and depth of the underground pipes. Look for an outdoor faucet or sewer cap.
For water problems, look for areas where water is either bubbling up through cracks in the concrete or seeping out around the edges of the slab.
For electrical lines, you may find you have to locate the conduit outside the slab area and dig up a length of it to determine where the rest of it runs.
For other types of repairs, or for installing new utilities that require excavating a ditch through an area paved with concrete, you may have to research construction plans to determine where to begin.
Mark the location of the portion of the slab you intend to remove. You may wish to measure distances from the slab’s edge to make an even, parallel hole for less visible repairs. Use a pencil or chalk to mark off the location.
Shut off any relevant utilities. If you are digging for a specific line or pipe, shut off the power or water before you begin. You don’t want to risk electrocution or other dangers.
Always call the utility company in Miami Fort Lauderdale Florida to find out the location of power lines and other dangerous items before beginning projects that involve digging.
Saw cut the line as deeply as possible. Rent a cutoff or demolition saw for use on concrete. Cut the line evenly to create a clean edge when your work is complete. If you are searching for a broken water pipe,you may have to enlarge the hole after the initial break is done.
Be very cautious while sawing. These saws are powerful and can cause a fatal injury. Always wear a respirator or face mask to protect against dust and follow the instructions carefully. For any application where it is possible, use a wet cut saw and keep enough flow of water to prevent air born dust and damage to the saw blade.
Chip the concrete near the cut. Use a heavy duty hammer drill or a breaking chisel attachment in a rotary hammer to chip the concrete next to the line you sawed.
Tilt the chisel so the side you will be removing cracks loose, not the side you’re keeping.
Gradually deepen the hole. Using the same tool, work the area around the cut, penetrating deeper each time until you’ve reached the bottom of the slab. This is the hardest part of the job since the pieces you break off cannot come free until there is a space for them to drop into.
You may need to leave tightly wedged pieces of concrete until the adjacent concrete is broken and removed.
Chip inward to make the gap wider. Once a gap has been created between the concrete you’re removing and the concrete that’s staying, chip further with the same tool to widen it to at least 3 inches (8 cm), or enough to fully remove the broken pieces.
Keep your chisel point slanted toward the beginning hole while you work around, so it doesn’t try to penetrate straight down without breaking a section of the concrete free. If it is allowed to go too deep, the bit will become lodged in its hole and will be difficult to remove.
If a bit is truly stuck, you may need to use a new drill bit to break the concrete around it and free it.
Break larger pieces using a sledgehammer or electric jackhammer. Once there is a wide enough gap to avoid damaging the concrete you wish to keep, you can use the methods detailed for removing a whole slab.
Use a pry bar as you go for the quickest and most effective results.
Do not use a jackhammer or similar power tool if you are near a water pipe, electrical line, or similar item.
Remove the broken chunks and bits of concrete from the hole as it becomes larger, so subsequent pieces have plenty of room to drop in without becoming wedged. This will also make it easier to spot pipes and electrical wires.
Use bolt cutters to snip reinforcing mesh and an angle grinder to cut through rebar.
Clean up the walls of the hole. Once all the concrete is removed, chip the vertical walls of the hole to make them smooth and even. This will ensure a stronger repair (or a more attractive edge if you don’t plan on replacing the concrete).
Search for the damaged pipe (if applicable). If you’re trying to find a damaged utility such as a water pipe, look for signs as you go to help you locate the pipe (such as water puddles or stains). Once you find the pipe, you may need to continue breaking concrete along its length to find the damaged section.
Avoid hitting cast iron or PVC pipes with the breaking hammer, as these are brittle and can easily sustain further damage.
Use the rubble as fill. If you have a large hole in your yard, such as following a repair, use some of the rubble to fill it back again. Cover any pipes or other objects with soil first to avoid damaging them.
Use a heavy duty wheelbarrow. Move the rubble to a larger disposal container using only a very heavy duty wheelbarrow. Concrete is very heavy and will break light wheelbarrows.
Do not overload the wheelbarrow. Taking more trips with smaller loads is much more sustainable.
Rent a dumpster from a disposal company. If you want to get rid of a large amount of concrete, this is your best bet. Many disposal companies have a reduced rate for disposing of clean broken concrete that can be recycled or used for riprap.
Ask in advance how full you can load it, or you’ll be forced to take the excess out or pay them to do so.
Drive it to the landfill. Be careful — your truck will not carry as much concrete as you think. Use a powerful pickup truck and do not fill the entire bed.
You can also use a utility trailer for your truck, but be especially cautious loading in that case. A too-heavy trailer will smash into your truck or spill when you attempt to stop.
In some locations, only landfills that accept “C&D” (Construction and Demolition) materials will accept concrete, and the fees may be pricey.
Building supply companies may take your old concrete for free if you call them in advance and agree to deliver it yourself.
Build a wall out of the broken pieces. Or reuse it to raise a flower bed, create a footpath, or even create urban grunge decoration.
Finally, what is concrete breaking? How can concrete breaking techniques help you in Miami Fort Lauderdale Florida? Concrete breaking is the controlled breaking of mass in Fort Lauderdale concrete structures usually for the precision removal of concrete to keep the remaining structure intact and undamaged. The concrete breaking industry in Miami Fort Lauderdale Florida has evolved from the use of sledgehammers and jackhammers to the use of concrete cutting saws and concrete drilling rigs to the use of robotic breaking technology, such as the Brokk Robotic Demolition Machine. These new concrete breaking methods provide the benefits of safer demolition methods, surgical precision removal of concrete, dust-free concrete removal and quiet demolition operations while providing speedy demolition with up to 10 times faster production speeds over conventional demolition methods of Miami Fort Lauderdale Florida.
How can the industry in Miami Fort Lauderdale Florida provide help for my concrete breaking project? Demolition engineers of Fort Lauderdale can provide detailed concrete breaking plans tailored to your specific needs. Will perform concrete breaking in virtually any worksite no matter how difficult the environment may be, or whether the work is in a hard to reach area or a highly sensitive area, technicians and specialized concrete breaking equipment can execute any concrete breaking job without disrupting your job site or the normal operations of the facility.
Technicians and demolition engineers of Miami Fort Lauderdale Florida are ready to assist you with not only your concrete breaking needs but also all of your concrete cutting, concrete coring, boring and drilling needs. Concrete breaking experts are happy to help you with your job whether it is in a nuclear power plant, on a tower, bridge, road or any other structure located throughout the country.
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