Pouring the slab;
Here is page two of three of photos showing the
slab being poured.
In this photo the footers have been poured and
the slab is now started. Note the two guys
bending over, one on the far left, another in a
pink shirt at the rear -- they are holding a long
2X4 that is used to level the wet concrete with
the top of the form -- the 2X4 is called a "screed
board" and they are "screeding" the concrete by
sawing the screed board back and forth all the
while moving it along toward the crew standing
with their backs to the camera. Note two
small brown stakes sticking up out of the concrete
-- these are marked at the same height as the form
-- the two guys with the screed board level the
concrete off to the top of the form and the mark
on the grade stakes. The rest of the crew
pushes and pulls concrete toward or away from the
screed board. This whole operation moves
slowly toward the camera, stopping only to pour
more concrete from the pump truck.
As the concrete is screeded so it's level with
the form, the surface is still very rough and
needs to be smoothed. This is what's
happening here -- the guy in the red shirt is
working with a long trowel -- actually, a "float"
-- to smooth the edges of the slab. The guy
in the rear in the blue shirt and white trousers
is holding a "bull float" -- a long aluminum
float, smooth on the bottom, with a very long
handle. He slowly pulls this over the
concrete, smoothing the surface.
Another shot of the bull float at
work -- he makes several passes over the concrete,
each making the slab smoother.
Now please go to
page 3 of
pouring the slab.