Contact us
If you have any questions or would like assistance, please contact our technical team:
- Email: technical@netweber.co.uk
- Telephone: (01525) 722 100
Our technical team is available Monday to Friday, 8:30am until 5.00pm.
A good quality precision grout, whether resin-based or cementitious must provide good load transfer and be easy to apply under most conditions.
The surface of the concrete base must be free of any loose, friable material, be dry and free of dust and laitance and be sufficiently mature not to interfere physically or chemically with the bearing grout.
Holding-down bolts: It is best to grout the holding-down bolts first. This ensures that they have been filled completely. Some specifications call for grouting of anchor pockets and under-plate bearings at the same time; this can lead to air entrapment and voids in the pockets, unless the grout is very fluid.
Removable shims: Steel shims are used to provide the correct levelling and alignment of the baseplate which is then fixed in place using anchor bolts. The shims can be removed or can remain as long as they are corrosion proofed.
Shuttering: Ensure the shuttering is sealed tight to the base to ensure no grout loss.
For high static loads: Use precision cement grouts such as webercem advanced precision grout or webercem advanced precision grout SP.
For vibrating loads, chemicals or high dynamic loads: Use precision epoxy grouts such as webertec EP pourable grout.
When pouring the grout into shutters from one side of a baseplate, use a removable hopper to provide an adequate head of grout. The hopper must be a minimum height of 100mm and have a ratio of 1:3 (height of hopper: length of pour).
Grout can also be pumped from the centre of the bearing plate where it spreads to the outside equally on all sides. A peristaltic pump is used for resin grouts and a diaphragm or worm pump for cement grouts. Alternatively, for large grouting areas, a grout lance is placed through the gap to the other side and withdrawn slowly as pumping proceeds.
If you have any questions or would like assistance, please contact our technical team:
Our technical team is available Monday to Friday, 8:30am until 5.00pm.
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