Quick set concrete (QC10)
QC10 is a rapid setting concrete, which forms part of the
BBA/HAPAS system of ironwork installation. When used as a back-fill
concrete QC10 provides excellent lateral stability to the cover and
frame significantly improving durability of the installation. It
can also be used for deep section repairs and rapid post
installation. QC10 is a two-part product containing special
cements and graded aggregates. It only requires the addition of
water to form a high strength concrete.
Preparation; Good concrete practice should
always be observed, to enable the mix to be placed into position
within 4 minutes. Remove all loose debris, oil and grease and any
other contaminants and work on a sound substrate, pre-wet area with
Mixing; QC10 should be mixed by forced action
mixer or by vigorous hand mixing with appropiate tool. Mix the
inner bag containing the cement with the sand/aggregate. Add
between 1-2 litres of water and mix thoroughly. A stiff consistant
mix should be achieved.
Placing; Apply material over pre-wetted area
with a float and within 4 minutes of mixing to 40mm below the
required surface fill level. Compact ensuring no voids are
Package; 25kg Poly bag or tub.
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