About this product
weber.cem 104 mortar is a two-component cement based polymer modified and fibre reinforced mortar specially formulated for use in bedding of highways fixtures such as manhole installations.
weber.cem 104 mortar complies with the performance requirements of Highways Agency Design manual for Roads and Bridges, DRMB, HA104/09 Mortars for Bedding of Ironwork.
Uses
- Bedding of manhole frames
- Bedding of gully gratings
- Bedding of street ironwork
- General purpose rapid setting mortar for filling gaps and small holes around ironwork
- Bedding of precast kerbs
Notes: Performance properties may differ if the product is used at temperatures below 10°C or above 25°C. Hand mixing or mixing with a shovel on a board is not recommended for this product.
Features and Benefits
- Fully complies with the requirements of Highways Agency HA104/09 Mortars for Bedding of Ironwork.
- One grade for all year round use
- Easy to mix and apply
- Long workable time around 15 minutes, allowing time for adjustments to levels.
- Excellent cohesive bond to prepared concrete and ironwork surfaces
- High early strength enables rapid return to service
- Negligible shrinkage on curing
- An environmentally-friendly greener solution and dark green in colour
- Non-hazardous waste disposal
- Fibre-reinforced
- Also supplied in sealed pails, protecting contents from rain
- Resistant to groundwater
- More frost resistant than ordinary cement mortars
Technical data
Preparation
No mortar will develop full bond adhesion strength without the surface of the substrate being carefully prepared to give a mechanically sound and clean surface.
Concrete and brickwork
The surface must be prepared by suitable means to remove all traces of laitance, oil and grease. Care must be taken to ensure the oil and grease is removed and not simply spread over a larger area.
New concrete must be cured for at least three days, except when using weber.cem pyracrete to build up the chamber tops when it can be applied just after the concrete has set.
The surface must be dampened then wiped free of surface water.
Iron and steel
Metal surfaces should be clean and free of rust. Frames contaminated with oil or grease must be cleaned with a suitable solvent before application. The underside of frames must be wire brush to provide a good key.
Mixing
The recommended mixer is a twin-bladed, double-handed electrically driven paddle mixer. The contra-rotating paddles do not create a torque that is difficult to control and mixing is quick and easy even with this type of firm mortar. Mixing time is about 2 minutes. Alternatively it is possible to produce a consistent mortar with a forced action mixer (A) or a MR4 type of blade fitted to a powerful drill (B). Mixing time is about 4 min.
We do not recommend hand mixing or mixing with a shovel on a board.
Shake the can of latex then pour it into a clean pail.
When using the recommended double headed mixer, in cold weather, leave around 100 ml of latex out (about a 2 cm depth in the bottom of the can) and then mix fully.
If using the single headed MR4 type of mixing blade, or in warm conditions, add all the latex to the pail.
Add the powder slowly while mixing all the time. After about half the powder is added, stir around the rim and into the bottom of the pail to ensure thorough mixing of all the powder, eliminating any undispersed powder that may have accumulated in the bottom.
The mix will appear runny, like a grout at this stage. Continue to add powder, mixing all the while until all the powder has been added. Continue to mix until the mortar appears to be uniform in appearance and dough-like in consistency. This produces a thixotropic mortar mix that is very easy to place and will allow the manhole frame to be aligned before it sets.
Allow maximum 10 minutes for the installation of the mortar and the frame.
Application
Work quickly, as this mortar is rapid setting
Apply the mixed mortar onto the prepared damp concrete base in a pyramidical section ensuring that sufficient material is present to provide complete contact and the required thickness over the whole area. Lower the frame and press firmly into position using steel or timber guides to provide correct levels and alignment. More mortar can be mixed and used around and on top of the flanges of the frame to provide lateral restraint.
For more information on the use of this product, refer to the Application Guide obtainable from Technical Services Dept.
Packaging and Yield
weber.cem 104 mortar is supplied in a two component pack.
This comprises a 20 kg bag of special active powder and a 2.5 litre polybottle.
The polymer component is in the polybottle.
Do not add extra water.
Storage and Shelf life
This product should be stored in a shaded well-ventilated dry environment, away from direct sunlight. Storage temperature should not be below 10°C or exceed 30°C. Shelf life is max. 6 months in unopened containers.
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 request the Material Safety Data Sheet for this product.
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. Please contact the relevant Customer Services Team below for all product orders and enquiries.
England and Wales
Tel: 01525 722100
Fax: 01525 718988
e-mail sales(at)netweber.co.uk
Scotland, Northern Ireland, Isle of Man, Republic of Ireland
Tel: 028 9335 2999
Fax: 028 9332 3232
e-mail sales(at)netweber.co.uk
More Information
Packaging
weber.cem 104 mortar is supplied in a two component pack.
This comprises a 20 kg bag of special active powder and a 2.5 litre polybottle.
