It will provide a perfect cut but is very dusty, so be prepared for a bit of cleanup and the need for wearing face dust masks. 8. Tools Needed: Don’t force a blade into a cut. Make sure you have the right blade and that the blade is not dull to avoid kickback. Make a series of passes until you have cut through the concrete block. It’s advised to take a break from cutting for a few seconds, especially if you are working on a large block like the 12-inch concrete block. Turn on the circular saw's motor, and lower the saw's blade gradually onto one edge of the chalk or pencil line on the paver's upward-facing side. Marking out the area is like marking out the route the blade will follow. Tips to get the best cutting results when using a circular saw to cut through concrete, Safety measures to follow when using a circular saw to cut concrete blocks. These dust particles can affect the blade you are using and also the result you will get when you complete the task. The marks act as the guidelines on wear the circular saw blade will pass. Measure the area where you’ll install the cut cinder block. How to cut concrete blocks with circular saw? Make sure the surface that you want to cut is clean. Squeeze the trigger gently until the blade begins to move. Place the shoe of the reciprocating saw against the cinder block with the blade directly above the cut-line. Plugin the circular saw if you are using an electric saw. If you want to cut some concrete blocks, cut a wall or slab or whatever you want, then you need to do it the right way. Yes, a circular saw can cut concrete with the right blade. Place the blade of the saw on the concrete block. The wet cutting blades are on the top, but you must add a low stream of water during the cut, this will lubricate the blade during the cutting process and also it will prevent the silica dust from being produced. It can cut materials such as masonry, metal, plastic, and wood, and can be either mounted to a machine or hand-held. Have a superb cutting experience. This will not allow you to cut well. The steps above will also work well if you need to cut curves in the concrete block. Small rough cuts can be made using a sledgehammer and cold chisel. The easiest would be with a circular saw and a masonry cutting blade. Step 4: If you are cutting with wet blade, then make sure you have someone helping you add a slow stream of water to the blade during the process to overcome the heating and prevent the dust. He used to own a local shop where he sold different tools for 20+ years. Only buy the wet cutting blades if you have a specific concrete saw or a circular saw with special parts to add water stream to the cut during the process. Your safety is vital when using any tool. If you are using a battery-powered saw, slot in the battery. Take a tape measure and measure the length of the space where the cut cinder block will fit. Attach the blade and the washer, and then tighten the screws. Make sure you have the right blade and that the blade is not dull to avoid kickback. If you are cutting because you need both sides of the concrete block, then hitting it will not be your best bet.  for cutting retaining wall blocks. This step is a deciding factor on the type of cutting result you will get after sawing. Characteristics of the concrete you need to know include the compressive strength, the size and … Be sure of the places you want to cut and mark the concrete blocks with the chalk line. All you have to do is mark out the curve on the block and follow the curved line. With the diamond blade, the teeth are usually angled downwards like the shape of a comma (the punctuation mark). Mark the cut and clamp the stone or paver to a stable work surface. The circular saw has to be hands down one of the most aggressive power cutting tools ever made. A circular saw would be a power tool that uses an abrasive or a toothed disc to cut various materials by utilizing the motion spinning around its arbor. To make it easy you have to follow some steps, procedures and use the right tools like the proper blade type, the power of the circular saw…etc. To install the blade, first, check that your saw is turned off and unplugged. Also, check out other articles and posts on this website. Saw … The common concrete blocks are “4-inch, 8-inch, and 12-inch” blocks. For cutting masonry blocks with a circular saw, the most important thing is using an appropriately sized diamond blade. Mark your cutting line onto the concrete using a 2-by-4 as a straightedge to guide the chalk. 7. These types of reinforced blocks are used in the construction of dams and used in building foundations. Tip 2: Cut Concrete with the Right Diamond BladeFor maximum cutting speed and blade life, you should match the blade as closely as possible to the material you're cutting. A circular saw with a masonry blade can also be used to either score or completely cut through the block. The wet cutting method: This method requires using a smooth diamond blade. Tape the saw to prevent scratches. Another method for cutting concrete pavers is to use a hand-held power saw such as a Skillsaw with a masonry blade or a cut-off saw. Firstly, make sure your saw is unplugged. Quick Guide on How to Make Wood Molding with a Router, A Complete Guide on How to Use a Compound Miter Saw, How to Cut Plexiglass With a Circular Saw, A Complete Comparison: Sliding Miter Saw VS Compound Miter Saw, How to use a circular saw to cut straight, Best Miter Saw for Crown Molding for 2020 – Top Picks & Reviews, Best Benchtop Router Table for 2020 – Top Picks & Reviews, Best Router Bits for Cabinet Doors for 2020 – Top Picks & Reviews, How you can cut concrete with the circular saw, To be able to cut concrete with circular saw, the thickness must not exceed 15 cm max or things may become difficult.Â. Cutting cleanly through concrete blocks is not a task that can be executed with just any saw or power tool. The reason a diamond blade is advised for cutting concrete is that it is capable of ripping through the hardest of materials. However, certain building needs require different sizes and make of blocks. If you want to buy any other type, just make sure that the RPM is above 3000 just to increase the cutting speed. Reinforced concrete blocks are usually made with concrete, gravel, steel, and wire mesh. If you are making use of a smooth diamond blade, remember to use a saw that can apply water on the surface, or gently pour water as you are cutting. With the variety of the circular saw models and being versatile enough, these saws offer you with the corded and cordless functions and features. If you want to buy any other type, just make sure that the RPM is above 3000 just to increase the cutting speed. An angle grinder's design enables it to cut small square holes in a concrete block; a useful trait when installing electrical outlets in a concrete block wall. Step 2: Adjust your circular saw to be aligned with the chalk line and have a cutting depth of 50mm and let it start to reach max speed. Common concrete blocks are made with concrete, sand, and gravel. When you are done with the steps above, you should be proud of the cutting result. Cutting concrete blocks is a daunting task because of the materials that were put together to make the block. Score the length of the cut three or four times with the chisel. It can cut materials such as masonry, metal, plastic, and wood, and can be either mounted to a machine or hand-held. To be able to cut concrete with circular saw, the thickness must not exceed 15 cm max or things may become difficult. Set the saw blade so it will cut about 1/4 inch to 1/2 inch deep. A circular saw would be a power tool that uses an abrasive or a toothed disc to cut various materials by utilizing the motion spinning around its arbor. What are the tools required for cutting concrete blocks? Inspect every part of the saw before and during the task. Simply make a line on the concrete block, so you know which part you want to cut. While you can find vacuum systems designed to collect the dust material, the systems aren't fully effective. How To Use Reciprocating Saws To Cut Trees? Regular concrete blocks are usually measured in inches or millimeters. When cutting through concrete blocks, there is usually a large amount of dust and sand that is sawed out. Cutting concrete with a power saw produces enormous amounts of dust. With regular circular saw blades, you fix the blade in the saw with the teeth angled upwards. You can’t remove a blade if it is spinning around as you try to unscrew it. Reinforced concrete is a structural element in your building, so be careful when dealing with it, because cutting the rebar inside the RC may cause cracks in other parts of the RC. Sure, the blade is not made out of diamond, but only the teeth are made out of a compound of diamond and another reinforcing metal, it’s a composite material. You may want to cut some blocks for your yard, cut a wall or slab or whatever you want, but if you are trying to cut it, you have to do it in the right way because it’s actually a hard job to do, and instead of hiring a contractor to do the job and it may cost you a lot of money, you can do it all by yourself if you have the right tools. The concrete block varies in size and thickness. The blade can be made from many materials, but in our case, we will focus on three types designed specifically for our job: They are all can be used in cutting concrete, but each one has its own advantages and disadvantages. Place the block down on a surface that will prevent it from vibrating and thus, moving. If you are a contractor and doing many concrete cutting jobs, aim for the diamond blades. I had a sidewalk that was raised above a driveway and I knocked about a 45 degree angle into the corner of the side walk block to match the driveway. Michael is the Editor at thetoolgeeks.com. Cut the block, allowing the saw and blade to do most of the work — don't apply too much force. Im doing jobs for other people during the day or looking after my son so its really just a temporary thing for my own building projects. There are several types of blades; each has its own use. Set up workhorses or, preferably, a work stand with adjustable sides to secure the pavers. Step 1: Mark off the cutting path with the chalk line. If the blade can saw through concrete, think of what it could do to your fingers. Concrete blocks are usually made with gravel and cement which make them hard. So, let’s get to it. Diamond blades are more expensive; they do not wear easily and stay for a longer time, and if you are a contractor who always deals with concrete cutting jobs, diamond blades will be the prefect tool for you. Each method comes with a type of diamond blade that suits it. This will keep the saw from scratching the concrete surface as you cut. To cut concrete with a 15-amp circular saw, start by using chalk to mark cut lines on the surface of the slab. However, if you need to cut concrete blocks constantly, it would be convenient for you to buy or rent a concrete saw. Here, we are dealing with the strongest material on earth, the diamond. Type of circular saw is used for cutting concrete? The diamond blades are even better than the masonry abrasive ones. There are two methods that can be used when using a circular saw to cut concrete blocks. A 7” circular saw, for instance, can only cut to 2-¼ inches deep, meaning you’ll need to sledgehammer the rest of the concrete away; a 14” wet-cutting blade … This generates power for the circular saw. © PowerSawExpert.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com. Depending on the thickness of the concrete, you may have to raise the blade and cut through only a portion of the paver. He now enjoys researching DIY tools and writing guides about it. Secondly, slide the blade cover and make sure the blade is locked firm. However, a circular saw that has a special blade is the best choice. Therefore, I advise you to wear a respirator or dust mask. An angle grinder equipped with a concrete-cutting blade makes straight sharp-edged cuts in a concrete block's surface. When the dust becomes airborne, it's possible to inhale it into your lungs, which can create severe health problems. How to Cut Concrete Blocks with Circular Saw. A concrete block is a rectangular block used in construction. Modern circular saws have a “blade release switch” that allows you to remove the blade. Step 5 Lower the end of the blade to the cut-line, keeping the shoe of the saw against the cinder block. 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