Pizza 1
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Transcript of Pizza 1
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8/14/2019 Pizza 1
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1. Introduction
2. Materials
3. Dimensionsion slab diameter .............. 1,8 m
ded slab diameter .............. ,6 m
side diameter .................... ,2 m approx
utside diameter .................. 1,4 m approx
ening, width ....................... 440 mm approxening height....................... 260 mm approx
4. Quantities of material used
se slab
kg bags of cement
elbarrows of concrete sand
elbarrows of 13,2 or 19 mm concrete stonemm stone produces a concrete that is easierce)
selay bricks (222 x 106 x 73 mm)
kg bag of cement
elbarrows of building sand
a pizza oven
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8/14/2019 Pizza 1
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6. Construction
se Slab
k out a 1,8 m diameter circle on the ground. This
be achieved by using two nails and string. Tie one
to the end of the string and tie the other nail so
it is 900 mm away from the first nail. It is best toa piece of string that does not stretch easily.
ure one of the nails in the centre and use the other
to scribe a circle around it.
vate the area within the circle to a depth of
m. Use a spirit level to ensure that the surface
vel. Compact the area well and wet the ground
re placing concrete.
t a 75 mm thick slab in the excavation using
ium trength concrete.
ab approximate material requirements:
kg bags of cement
elbarrows of concrete sand
eelbarrows of 13,2 or 19 mm concrete stonemm stone produces a concrete that is easierce)
in or bucket of convenient size for batching all the
redients.
owing mix proportions should be used:
pact the concrete well by tamping it all over using
oomstick, pick handle, a length of 38 x 38 mm
er or similar object. Finish the surface off using
aight edge and spirit level to ensure the top
ace is level and flat. After the surface has been
lled, leave the concrete to stand for a while until
urface water evaporates and the concrete stiffens
tly. Use a wood float to finish the surface.
concrete can now be covered with a plastic sheet
revent moisture loss and ensure effective curing.
p the slab covered for 7 days.
5. Tools
Mix proportions by volumeMedium
strengthconcrete
Cement
1
Sand
2,5
Stone
2