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CNBT 1413 Concrete I photos - building a slab

Multiple classes projects photos | Building piers and footings photos| First Round Rock class

This class built a slab behind the Automotive building


Students build the forms and add the plastic sheeting and rebar
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The rebar rods are tied together and a rock "chair" keeps the rebar off the ground and inside the concrete
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The long sides have footers dug for additional concrete for more stability
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When the concrete truck's chute can't reach the destination, it loads concrete into a pump machine which has a long hose...
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...so that students can easily pour the concrete onto the slab.
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While some students finish pumping the concrete, others level the top with a wooden screed board...
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... another uses a bull float to force down the aggregate (rocks) and bring the cream (gravel-free) concrete to the top...
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...and other students use a hand-held float to smooth the top.
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The slab is finished and curing (drying)...
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...and then the building is placed on it.
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