About this Product
webercem pyrabed is a range of cementitious products containing a blend of special cements and graded aggregates, which when mixed with water produce fast-setting bedding mortars for the rapid installation of ironwork and high way furniture. They can be applied to depth of 10 - 100 mm in one pass and the rapid strength development characteristics allow the road to be opened to traffic between 45 - 90 minutes after placement, dependent on the grade of product selected.
Features and Benefits
- A range of working times between 5 - 15 minutes at 20°C
- Rapid strength development reducing repair possession times
- Open to traffic between 45 - 90 minutes
- Shrinkage compensated
- Economical repair, can be extended with aggregate for repairs more than 100 mm in thickness providing flexibility of use
- Excellent strength gain at low temperatures
- Excellent bond strength
- No primer required
- Complies with HA spec HD 27/94 achieving 20 N/mm2 in less than 2 hours at 20°C
- Three grades of mortar to allow for varying traffic conditions
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.
Tel: (01525) 722100
Fax: (01525) 718988
Weber products are distributed throughout the UK through selected stockists and distributors. For UK sales enquiries and overseas projects, contact Weber's Sales office.
Tel: (01525) 722100
Fax: (01525) 718988
Material Safety Datasheet
Preparation & Application
Clean and remove all oil, grease ,dirt and loose debris from the work area to provide a sound substrate. Pre-soak the substrate , removing any standing water before placing the mortar.
Use only freshly opened bags of webercem pyrabed and a clean forced action mixer such as a Cretangle or Mixal mixer. Charge the mixer with 2.5 - 3.0 litres of water per 25 kg bag, add the powder gradually to the mixer and mix for 2 - 3 minutes until a stiff mortar consistency is achieved.
When mixing by hand use a clean spot board or wheelbarrow. Add 3 litres of water per 25 kg bag, mix until the powder is fully wetted out and a homogeneous mix is produced.
Small quantities can be mixed by hand using a ratio of 6 parts powder to 1 part of clean water by volume.
For repairs over 100 mm thick, bulk out with 30% (by weight) of 5 - 10 mm aggregate and mix for 3 minutes to a uniform consistency.
Apply sufficient mixed mortar onto the prewetted substrate to ensure full contact will be made with the bottom of the frame or unit.
Lower the frame or unit onto the mortar and tap down to line and level. The mortar can be applied between 10 - 100 mm in a single pass - greater thickness can be achieved using a layer upon layer method.
Once the mortar has reached initial set, fresh mortar can be used to backfill the ironwork.
webercem pyrabed should be placed within 5 - 15 minutes of completion of mixing (see technical data table ).
The set time will be extended in cold conditions and shortened in hot conditions. At lower temperatures it is advisable to keep the powder warm and use warm water up to 30°C.
webercem pyrabed can be used down to 5°C. For applications below 5°C, please consult weber's Customer Services Department.
No special curing is required at application temperatures between 5°C and 35°C.
Packaging, Health & Safety
webercem pyrabed is supplied in 25 kg bags.
Coverage / Yield
Yield per bag is 12.75 litres. Approximately 78 bags are required for 1 m3.
Storage and Shelf Life
Store in a cool, dry place above 5° C.
Shelf life of unopened bags in correct storage conditions is at least 6 months.
Health and Safety
Contains cement (Contains chromium (VI). May produce an allergic reaction). Harmful by inhalation. Irritating to eyes and skin. Keep out of the 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 plenty of soap and water. Wear suitable protective clothing, gloves and eye/face protection.
For further information please refer to the Weber Safe Handling Guide.
Other products in the range
Fast-setting repair concrete for pavement patch or full-depth repairs
General-purpose, rapid-setting, cement-based bedding concrete
Polyester-based mortar for bedding and fixing manhole frames, kerb stones, airport lighting bases, ducting, drains and highway fixtures
Rapid strength-gain repair concrete for thin bonded pavement repairs