Mesh-up, the new all plastic "chair," is flexible, elastic, easily and quickly attached to the mesh without ties. Above all it`s capable of returning the mesh approximately to its original position after being subjected to the loads commonly encountered while placing the mesh in the forms and spreading the concrete.
Install 1 per 2 sqft - Ex. For 400sqft, order 2boxs (100pc) of Mesh-Ups
(Designed to receive #6, #8, and #10 wire mesh)
The flexible plastic support chair Mesh-up helps solve the problems of concrete slabs at grade will:
1. Aid in getting the mesh off the ground.
2. Help to support mesh above the membrane before and during pouring.
3. Snap easily, quickly and firmly to mesh where the wires intersect; therefore, they do not rotate or fall off. See new design.
4. Deflect when mesh is pressed down and then rebound; preventing wire bending over Mesh-up.
5. Resist being pressed into subsurface because of large base ring. Use sand disk over soft fill.
6. Reduce membrane puncture from sharp wire ends.
7. Reduce supervision and require no "hook man."
It should be explained to the mechanics who place the chairs that Mesh-ups are plastic springs and when placed properly on rnesh can produce excellent results with little effort. They are not magic and after deflection they must be allowed to rebound. Mesh-Ups are Easily Applied
Mesh-ups are attached where wires intersect so they will not rotate or fall off. The lower slot in the Mesh-ups is to receive the lower wire at the intersection. This seems minor, but it should be pointed out so that units will be applied properly the first time. Use 4" high 4" x 4" blocks or larger, to elevate the wire to facilitate Mesh-up application. Wire Should Be Straight
To position wire properly, it must be straight with no tendency to curl. If the wire is not adequately straightened, the inspector should be on the lookout for "low" spots where an additional Mesh-up might be necessary. And at "high" spots of little stress, a unit can be removed. Use Top Rebar
In design where slabs are poured monolithically with thickened beams, the mesh should be shown lying on top of the top reinforcing steel beam for additional support (any conduit and plumbing must be located under the wire). With a Few Precautions - A Better Job
Tie wire at splice, tie wire to proper elevation at external forms, internal dividers, vertical projections ( plumbing, standpipe, vertical conduit, etc).
Installation not recommended in subfreezing temperature