As an alternative to using bricks or stones to support the rebar during the concrete pour you can use inexpensive rebar chair supports as shown in figure 7 that are specifically made for the purpose of holding the rebar off the ground during the concrete pour.
Concrete brick for rebar support.
4 products in concrete block supports.
We offer slab bolsters spacer wheels individual high chairs mesh chairs end caps rebar stakes and footer chairs.
Concrete dobie with embedded wire.
Holds rebar in place while concrete hardens.
Rebar support products is a manufacturer and distributor of concrete accessories for precast commercial and residential applications in the concrete industry.
We manufacture these in regular strength 4000 psi mix design or higher strength for specific jobs.
Holds rebar in position as concrete hardens.
Additional information on building concrete slabs patios driveways and sidewalks.
Product may vary by store.
Concrete cement masonry rebar remesh concrete block supports.
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Wire dobie is typically used to maintain rebar or welded wire at a specific height while the concrete hardens around it.
The rebar spacer block 2 in.
Concrete dobies the term dobies has become the trade name for concrete rebar supports over these last fifty years.
Wire dobie is used as a chair to suspend rebar or welded wire in a freshly poured concrete slab.
Grip rite 6 5 in x 6 5 in steel concrete block cap.
Each support unit is manufactured with a hole in its center so a tie wire can be inserted through the support unit and wrapped around the reinforcement to ensure it will stay in place.
One 8 x 4 x 3 tie brick can provide one two three or four support units to effectively keep the wire mat or rebar from contacting or sinking into the soil.
They come with or without tie wire inserted in the concrete brick.
Rebar the common term for the metal bar used to reinforce poured concrete must be embedded to the proper depth known as cover in order to provide the proper strength.
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The rebar spacer block 3 in.