This is where you can run into raveling when cut to early or uncontrolled cracks when cut to late.
Early entry concrete cutting.
A number of approaches were tried.
Husqvarna soff cut is a system developed for ultra early entry tm sawing of contraction joints after pouring concrete slabs.
Published on jul 13 2017 norton clipper early entry green and decorative concrete cutting will never be the same.
The idea of creating a saw that would allow contraction control joints to be cut soon after final finish was born out of necessity.
Generally you want to saw cut 6 18 hours after the concrete has been finished unless you use an early entry soft cut saw.
Controlled planning and cutting of joints in the early stages of a concrete project can help to reduce stress on structural joints.
The u s saws early entry saw was designed for cutting control joints in green concrete but it can also be used for joint clean out applications.
Though often crucial to the early stages of many concrete projects planning early entry joint saw cutting can be just as challenging as early entry sawing.
The biggest challenge to saw cutting at an early age was the raveling that would take place at the top edges of the joint if cutting was started too soon.
The saw s skid plate prevents concrete from unraveling when new joints are being cut.
A soff cut early entry saw can be used within a couple hours of finishing so you have less chance of uncontrolled cracking.
It s the optimal solution for minimizing the risk of random cracking which is one of the most costly and aggravating problems faced by a concrete contractor.
The first successful early entry saw was a small 25 pound electric unit that made a 3 4 inch deep cut.
Early entry saws sometimes called green concrete saws were first introduced to the market in 1988.
First cut expert early entry blades are part of the true early entry system for cutting control relief joints in green concrete.
The early age sawcutting was typically done less than three hours after concrete placement.
Soff cut 4000 early entry concrete saw husqvarna self propelled gasoline saw is designed for heavy duty commercial industrial and paving applications.
Joints in the test sections were sawed at 15 foot intervals using two different methods conventional water cooled sawcutting to a 3 inch depth and early age sawcutting to a 1 inch depth without cooling water.
The gc55 for early entry the gc25e for electric indoor cutting and the new.
The main benefits are the high production rates combined with the opportunity to pour and cut the same day.
Another innovation that has significantly changed and improved the way concrete floors are constructed is the early entry saw.