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(1)
Areas
of honeycombing, blow-holes and surface voids caused
by poor compaction or defects in the formwork placing
resulting in grout loss. The surface requires filling
to achieve the specified quality of finish.
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A fine,
formed finish can be achieved by filling blow holes
and minor surface defects with Monorub, applied
using a bag-rubbing technique.
Available in white and grey formulations, the shades
can be blended to match the colour of the parent concrete,
resulting in a uniform finish.
Larger defects and areas of honeycombing and grout
loss can be filled using Monolevel FC. If such
areas need to be cut out, reinstatement can be easily
achieved using Monomix. |
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(2)
Tie holes left on removal of formwork in new construction
must be filled to provide an integral, even finish.
In water retaining structures the tie hole must also
be made waterproof to prevent leakage.
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Voids
left by proprietary she bolt or through-tie systems
can be filled with Tiefill, a rapid setting,
non-shrink repair mortar.
The product has WRAS Approval and is totally waterproof,
enabling it to be used in water tanks, even those
containing potable water.
It can also be employed for sealing grout holes and
voids around fixings in pre-cast elements. |
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(3)
Low cover to reinforcement from incorrect siting of
shutters or positioning of reinforcement. Problems
also occur during concrete placement if spacers are
not used effectively. Reduced design life and durability
is the result.
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Such
low cover problems can be easily overcome by applying
two 1mm coats of Cementitious Coating 851
by brush or spray.
The product is a barrier to chloride ions and water,
even under 10 bar pressure. It also provides the equivalent
of 70mm of additional concrete cover. |
