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Weber - Saint-Gobain

weber.cem grout

weber.cem grout
weber.cem grout

Product Benefits

  • Grouting under stanchions and baseplates.
  • General void filling, under paving, in rubble walls etc.
  • Fixing ballustrades, starter bars, barriers.
  • Underpinning.

General purpose non-shrink cementitious grout.

Product Features

About this Product

weber.cem grout is a premixed non-shrink cementitious grout developed for applications where a cost-efficient grout with adequate flow and strength is required. weber.cem grout is designed primarily as a pourable grout but can also be used at a plastic or dry pack consistency.

Features and Benefits

  • General purpose grout suitable for use over a temperature range of between 5°C and 25°C.
  • Can be pumped, poured, trowelled or 'dry-packed'.
  • Good flow properties.
  • Can be applied in thicknesses ranging from 10 mm to 100 mm.
  • Factory blended to eliminate on-site errors.
  • Conforms to ASTM C827 Early Volume Change of Cementitious Mixturesproducing a non-shrink grout.

Technical Services

Weber's Customer Services Department has a team of experienced advisors available to provide on-site advice both at the specification stage and during application. Detailed specifications can be provided for specific projects or more general works. Site visits and on-site demonstrations can be arranged on request.

Technical helpline
Tel: (01525) 722110
Fax: (01525) 718988

Sales Contact

Weber products are distributed throughout the UK through selected stockists and distributors. For UK sales enquiries and overseas projects, contact Weber's Sales office.

Sales office
Tel: (01525) 722100
Fax: (01525) 718988


Send or download the documents

You can either send the documents to an email address, or download it

Preparation & Application


All surfaces should be clean and sound. Concrete surfaces must be free from any contamination including oil, grease, laitance and dust - and for maximum bond the surface should be roughened and presoaked with clean water.

Immediately prior to grouting, remove surface water including that in bolt holes or recesses.

Metal surfaces must be free from rust, scale, oil or grease but removable metal shims should be lightly oiled.

Bolt holes must be blown free of dust, water or any loose material.

Formwork should be well sealed to prevent leakage.


Mixing and placement can be carried out between +5°C and +25°C. In service, weber.cem grout will perform similarly to other cementitious mixes based on Portland cement in the temperature range of –20°C to +150°C.

Mixing should be carried out in a proprietary grout mixer or by using a medium speed drill (650 rpm) with an MR4-type helical attachment.

Do not use more than the maximum stated water adddition.

Water Addition

To obtain the consistency appropriate for a particular application, use the water addition detailed opposite.


When pouring, the area to be grouted should be shuttered and a header box used to maintain a grout head of 150 - 200 mm during the pour.

Machine mixing is recommended to achieve continuous pouring. For large applications weber.cem grout should be placed by pump, having been formulated to give a 30 minute working time.

Continuous grout flow is essential and sufficient grout and water should be available to be mixed to ensure there is no disruption during placement.

Where the thickness of grout is 100 - 200 mm, the grout may be bulked out with clean single sized aggregate by mixing in up to 10 kg of a 6 mm rounded aggregate per 25 kg bag. However, other weber products are available, which may be more suitable. Please contact our Customer Services Department.

Avoid leaving unconfined areas of grout proud around bearings etc.

The grout around the edges of baseplates must be finished flush with the sides by cutting the grout while still green after stripping formwork.

Cracking may result in areas where there is no restraint.

Packaging, Health & Safety


weber.cem grout is supplied in 25 kg polythene lined bags.

Coverage / Yield

See water addition above

Storage and Shelf Life

When stored unopened in a dry place at temperatures above 5°C, shelf life is 6 months from date of manufacture. If stored longer, setting times will increase.

Health and Safety

Contains cement (Contains chromium (VI). May produce an allergic reation). Harmful by inhalation. Irritating to eyes and skin.
Keep out of reach of children. In case of contact with eyes, rinse immediately with plenty of water and seek medical help. After contact with skin, wash immediately with pleanty of soap and water. Wear suitable protective clothing, gloves and eye/face protection.

For further information, please request the Material Safety Data Sheet for this product