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cement lay slab .pdf

Original filename: cement-lay-slab.pdf
Author: Claudio Francisco Pio A. Veron-Dulay

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How to Lay an Extra Tough
Concrete Slab

Adding PRO Mix TOUGH to the cement mix guarantees a slab
that can take a heavy load. Relax knowing you've laid a slab full
of synthetic fibres that give you extra strength without having
to use 'hard-to-work-with' steel mesh. Make tough DIY jobs

Tools for the TOUGH Job:

Concrete Mixer

Hoe or Mattock
Float or trowel

NOTE: The formwork for this slab was pre-prepared

TIP: For larger jobs, it is worthwhile hiring a concrete mixer.

Pour a bag of Extra Strength PRO-50 Concrete Mix into a wheelbarrow
and sprinkle one pack of PRO-Mix TOUGH over it. Make a hollow in the middle of
the mix, add 2 litres of clean water and mix well. If required, add additional water
(up to 0.5 litres per bag) to create a workable mix. Remember – too much water
ruins good concrete.
If you’re using a concrete mixer, add 2 litres of clean water to the mixing vessel.
Empty one pack of PRO-Mix TOUGH to the water, slowly add a bag of Extra
Strength PRO-50 Concrete Mix then mix thoroughly. If required, add extra water
(up to 0.5 litres per bag) to create a workable mix.

HINT: Use a hoe instead of a spade or shovel for easier
Place the well-mixed concrete in the formwork, making sure you filling the
corners, and compact it to remove voids. Level the concrete with a straight edge
and finish the top surface with a float or trowel. Use a broom or trowel to apply a

nice final finish if you like. Keep the concrete moist for 7 days to achieve
maximum strength. Formwork can be removed and the slab walked on after 24

Tips to Mix It like a Pro

Be careful with water. Too much water ruins concrete
Keep concrete moist for 7 days to maximise strength.
It’s easier to mix concrete with a hoe or mattock than a shovel
When laying paths, cut control joints every 1500 mm
Never lay concrete directly against concrete or other hard surfaces. Use
expansion joining
Make sure you get an even amount of concrete into the corners
To compact the concrete, work your shovel through it consistently.


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