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As concrete begins to cure or set it develops stresses inside the concrete which eventually causes random cracking. When this type of cracking occurs it negatively effects the reputation of the workmanship. This shrinkage of concrete during the drying or curing process happens as the drying cement tries to find its own ways to relieve the stress as it shrinks. Cracks arise randomly on the surface of the slab which does not affect the integrity of the slab other then the fact that no one likes seeing a crack in their newly poured floors.As concrete begins to cure or set it develops stresses inside the concrete which eventually causes random cracking. When this type of cracking occurs it negatively effects the reputation of the workmanship. This shrinkage of concrete during the drying or curing process happens as the drying cement tries to find its own ways to relieve the stress as it shrinks. Cracks arise randomly on the surface of the slab which does not affect the integrity of the slab other then the fact that no one likes seeing a crack in their newly poured floors.
The Husqvarna soff cut saw is a wet-cutting saw developed to lower the risk of cracks in green concrete as it cures. The system works by cutting control joints as part of the finishing process, in green concrete or newly poured concrete. When contraction joints are cut, it relieves the stress of concrete as it cures before the concrete itself looks for its own relief in the form of random cracking. With a soff cut saw the user can control cracking in slabs up to 9 inches thick, with only a 1-inch minimum depth cut. Cutting can start just one hour after pouring the slab.
A soff cut concrete saw controls random cracking at the early stages after the initial concrete pour. By cutting in predetermined locations to create weakened areas in the concrete so that the crack will form at the bottom of the cut rather at the surface creating a smooth surface. The cuts have to be implemented at a precise time to cut in the green zone before the final set is formed.
These cuts should be at a minimum of 1/8” in depth. Soft cut concrete cutting should start when the concrete will support the weight of the saw and the user without damaging the pour which is typically within 1 -2 hours. There are many different types and styles of joint layout, the contractor on the job should provide this layout pre pour for approval.
150Saw: Push saw that is recommended for residential and small commercial contractors, saw can handle decorative cutting and can fit where larger saws do not with a cutting depth up to 1-3/16".
150D Saw: Similar to the above saw for making quick decorative cuts in a high production environment without the need to use a hand saw. Great for spalled and profiled joints.
2000 Saw: High production rate mechanical saw for medium to heavy duty commercial application where 1-1/2" depth is need. Saw can be used with different blade widths to allow for multiple joint cutting sizes.
2500 Saw: Ideal for medium to large commercial applications,this is the fastest soff cut saw avaliable when cutting 6" - 8" slabs in retail or warehouse spaces.
4000 Saw: Made for large industrial projects this mechanical saw can cut from 1" - 2-3/4" in depth, with several blade width options, this saw is high versatile for large contractors.
4200 Saw: Built for heavy duty commercial applications where 1" - 3" joints are required, high production rate saw with ability to cut a variety of joint sizes.
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These blades are compatible for a variety of materials.
Excel 1000 Purple Blade: Recommended for ultra hard non abrasive sand and aggregate. Sizes from 6" - 13-1/2" available.
Excel 2000 Green Blade: Recommended for hard aggregate and non abrasive sand. Sizes from 6" -14".
Excel 3000 Red Blade: Recommended for medium to hard aggregate and medium abrasive sand. Sizes from 6" -13-1/2".
Excel 4000 Orange Blade: Recommended for medium aggregate and non abrasive sand. Sizes from 6" -14".
Excel 5000 Yellow Blade: Recommended for medium to soft aggregate and abrasive sand. Sizes from 6" -13-1/2".
Excel 6000 Black Blade: Recommended for medium to soft aggregate and abrasive sand. Sizes from 6" -13-1/2".
Husqvarna Proedge Soff Cutt Blade: Made to fit a variety of saws these blades are designed to bevel and cut which allows for straighter joints and a higher production rate versus labor intensive hand tooling.
Step 1: To begin run the engine at its maximum power, you should open up your throttle lever to full-open position.
Step 2: Orient the saw so that it aligns with your cut line. The front wheel should be set to white, and there are triangle pointers on both sides of this blade block for checking accuracy while cutting
Step 3: Push down on the saw handle and pull the blade release lever to lower the blade in the concrete slowly.
Step 4: Start pushing the saw forward and begin cutting, make sure to keep the front guide wheel in the cut lin.
Step 5: Push the saw at about half speed for the first 50 feet to allow the diamonds on the blade to open up and promote full blade life.
Step 6: Increase the forward speed of the saw but do not force it, the blade and engine are working at maximum efficiency.
Step 7: When approaching a wall, raise the front guide and use the triangle guide at the back of the blade block to cut the last few feet.
Step 8: When approaching a wall, use the front guide to raise it and then use your triangle blade block at back of machine for cutting last few feet.
Step 9: Do not hit the blade block assembly against any object. Damage may result.
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