Next morning for sure you always run the risk of an overnight Crack. Wet it down as soon as solid enough if you can to slow the cure. Or better yet cover with plastic after wetting down. Do this for as many days as you can and it will add psi to you mix by slowing your curing process.
I would have at least one control joint or zip strip in a slab that large at only 4 inch done with pour.
For the rest of the joimts a cut off saw is decent but hard for one man and you definitely need a straight edge for a guide. Also the blades are a little wide. Circular saw decent but slow.
Soffcut saw is best and reduces the risk of pulling off chips out of top edge of cut. It has a bottom plate that "holds" down the concrete. Also it has a narrower blade and 4 wheels to guide you very straight. I would put down chalk line at shoe edge but they cut straight.
Make sure your stone is watered down and wellllllll compacted. If no vapor barrier then wet the top of stone when concrete is placed so the moisture isn't sucked out of your concrete too fast.
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A walk-behind concrete saw is a powerful cutting tool used to cut through hard materials such as concrete, asphalt, and stone. It is an essential piece of equipment for construction professionals who need to make precise and efficient cuts in concrete for a variety of applications, from creating expansion joints to cutting trenches for plumbing and electrical work.
A walk-behind concrete saw is designed to be operated by a single person and is pushed along the surface to be cut, allowing for easy and accurate control. Using a walk-behind concrete-saw requires proper knowledge and skills to ensure safety and effective results. Knowing how to use a walk-behind concrete saw is essential for achieving quality results on your building projects.
Different types of walk-behind concrete-saws are available in the market, each designed for specific cutting purposes. The most common types of walk-behind concrete-saws include the following.
1. Push Saw
Push saws are the most basic type of walk-behind concrete-saws, suitable for small to medium-sized jobs and easy to maneuver. They are typically powered by a gas engine or an electric motor and have a single blade.
Soff-Cut 150 Early Entry Push Saw
2. Self-Propelled Saws
Self-propelled saws have a motorized drive system allowing them to move forward independently. They are suitable for larger jobs or when a lot of cutting needs to be done quickly but are more expensive than push saws.
Soff-Cut 2500 Early Entry Self-Propelled Saw
3. Flat Saws
Flat saws are designed for cutting horizontal surfaces, such as floors, sidewalks, and driveways. These machines have a large blade that can be adjusted to different depths, allowing for precise cutting.
Husqvarna FS 500 Series Concrete Saws
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Some of the common uses of walk-behind concrete-saws include the following.
1. Cutting Concrete Floors
Walk-behind concrete-saws are commonly used for cutting through concrete floors, walls, and slabs to create openings or remove sections. Rebar, which reinforces the concrete, can also be cut using specialized Diamond blades on these machines.
2. Asphalt Cutting
Walk-behind concrete-saws can cut through asphalt surfaces such as roads, parking lots, and driveways. They are typically used to repair or replace damaged asphalt surfaces or to create new openings or designs in asphalt.
3. Demolition
Walk-behind concrete-saws are commonly used for cutting through reinforced concrete during demolition projects. They can create openings for new structures, remove damaged or unwanted concrete sections, and help shape the remaining concrete to fit the desired design.
Here are some questions that contractors may have when using walk-behind concrete saw.
1. Should you use water with a concrete saw?
Yes, it is recommended to use water with a concrete-saw. Water helps to cool the blade and reduces dust created during cutting, improving the saw's performance and increasing its lifespan.
2. Is using a concrete saw difficult?
Using a concrete saw can be challenging for beginners, but it can become easier with proper training and practice. It requires proper safety gear, knowledge of the equipment, and technique to ensure accurate and safe cutting. Professional training can help individuals learn how to use a concrete saw effectively and safely.
In conclusion, using a walk-behind concrete saw requires proper training, equipment, and technique to ensure safe and accurate cutting. Always wear the proper safety gear, read the manufacturer's instructions, and follow safe practices when using the machine.
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