19
3: Grouting
Grouting compensates for uneven foundation, distributes weight
of unit, dampens vibrations and prevents shifting. Use an
approved, non-shrinking grout. If you have questions or doubts
about the grouting, please contact an expert on grouting.
Step Action Illustration
1
Embed reinforcing steel bars into the foundation by
means of 2K anchor adhesive glue.
The number of steel bars depends on the size of the base
frame, but it is advisable to distribute a minimum of
20 bars evenly over the whole area of the base frame.
The free end of the steel bar should be 2/3 the height of
the base frame to ensure a proper grouting.
TM04 0490 0708/TM04 0491 0708
2
Soak top of concrete foundation thoroughly, then remove
surface water.
3 Ensure proper shuttering at both ends of the base frame.
TM03 4590 2206
4
Check the levelling of the base frame again before
grouting, if necessary. Pour non-shrinking grout through
the openings of the base frame until the space
underneath the base frame has been filled completely.
Fill the base frame with grout up to the top level.
Allow grout to dry thoroughly before attaching piping to
pump (24 hours is sufficient time with approved grouting
procedure).
When the grout has thoroughly hardened, check the
foundation bolt nuts, and tighten, if necessary.
Approximately two weeks after the grout has been
poured, or when the grout has thoroughly dried, apply an
oil-based paint to the exposed edges of the grout to
prevent air and moisture from getting in contact with the
grout.
TM03 2946 4707
5-10 mm
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Base frame
Grout
Levelling
wedges or shims
left in place
Top of foundation
(rough)
19 to 32
mm grout
Formwork
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