This is because fine RCS particles can penetrate deep into the lungs. Serious health effects, such as lung cancer or silicosis, can result from exposure to RCS. These particles are small and it is not always possible to see the RCS dust in normal lighting. Cutting these materials produces airborne dust containing very fine respirable crystalline silica (RCS) particles. Stones, rocks, sands and clays can contain large amounts of crystalline silica and are used to make kerbs, flags, bricks, tiles and concrete. Highway road workers using concrete saws and generating dust. Whilst if the saw has a low power output, the diamond concentration should be lower or the bond should be softer to make the blade become sharper to ensure the cutting speed needed. In this case, the diamond concentration of the diamond saw blade should be higher, or its bond should be harder. If the concrete saw has a high power output, the diamonds on the saw blade will receive a higher impact when cutting is performed. On this basis, a blade which has a faster cutting speed or a longer lifespan can be selected. The basic cutting speed of the diamond saw blades should be first determined.
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