2. Is ProBlock "safer" than standard CMU for masons to use?
The answer is YES!
Reduces Shoulder + Back Injuries
Did you know that over the course of one day, a single mason can have lifted approximately 2 tons in CMU weight? That is why back injuries are the leading cause of worker's compensation claims and missed work days. When a mason is laying between 90 to 120 block per day, every pound matters. ProBlock is on average 30% lighter in weight than other CMU of the same material mix. Not only do you reduce the amount of weight a mason has to lift, there is also the opportunity for a mason to safely be able to lay more of them in a day.
No more OVERHEAD lifting
Overhead lifting and using unauthorized platforms is one of the leading causes for safety citations on masonry projects. ProBlock's open ended design allows masons to lay block around rebar instead of having to lay block over rebar. A mason can now safely lay block without having to stand on ladders, buckets, other CMU, or use any other unauthorized platform to extend themselves overhead.
Reduces Onsite Block Cutting = Reduced Silica Exposure
ProBlock's open ended units reduce the risk of silica exposure due to on site block cutting.
I. Is ProBlock more "efficient" for masons?
The answer is YES!
If you are a mason contractor, the physical demands of block laying is not new. Since the early 1900's, the design of a concrete masonry unit has not changed. With advances in building techniques and structural stability, ProBlock allows masons to install CMU in the safest way possible.
ProBlock is lighter
Due to its open ended design, ProBlock is by default 30% lighter in weight compared to a standard shaped CMU of the same material. A lighter block is easier and quicker to install.
Balanced Block Design
ProBlock has been engineered so that that center of gravity is where it should be; in the center web of that block. The finished result is a block that is balanced in the hands of a mason. Most open ended CMU's are inbalanced and can be troublesome to handle and can even cause injury. That is due to the center of gravity not actually being in the true "center" of the mass.
Open CMU Ends = Longer Vertical Rebar
On project sites, vertical rebar pieces have to be shortened to allow for masons to lay block over the pieces. With ProBlock's open ended design, masons can lay the block around vertical rebar by sliding the open end around the piece. This allows mason contractors to have longer lengths of vertical rebar which reduces the amount of rebar splicing and the total amount of steel needed for the project.
Enables High Lift Grouting with Less Blowouts.
The tapered face shell of the ProBlock design allows for high lift grouting. That tapered face shell reduces the risk of grouting blowouts.