Marshalls Civils and Drainage manufacture large circular precast cover slabs up to 3000mm that comply with BS EN 1917:2002 and BS 5911-3:2002, as well as 3660mm and 4000mm diameter which are not covered by the British Standard but comply with all the relevant provisions of the British Standard and Eurocodes.
To go with these Marshalls Civils and Drainage produce a variety of special access cover slabs that are manufactured to customers requirements.
These can either be in a one piece cover slab or a segmental depending on the diameter and whilst they are not covered by the British Standard our qualified engineers in the technical team are on hand to give advice with design and installation.
Typical examples of special cover slabs supplied are large Cover slabs up to 15 metre diameter, cover slabs that incorporate davits, rebates and surface boxes for pumping stations, rebates and surface, extra heavy duty slabs for ports and airports and ports, extra large accesses or multiple accesses or cove slabs that are with designed to comply with Highways Agency Specifications or customers own reinforcement design.
- Bespoke cover slab designs available made to customers specifications.
- Quality assured precast concrete covers slabs incorporating davit sockets, rebates and surface boxes.
- Offsite manufacturing for quick and easy installation special cover slabs with multiple access options.
|Product Name||Maximum Thickness (mm)||Overall Diameter (mm)||Standard Access Sizes 600mm x 600mm||Standard Access Sizes 675mm x 675mm||Standard Access Sizes 750mm x 750mm||Standard Access Sizes 750mm x 600mm||Standard Access Sizes 1200mm x 675mm||Weight 675x675 access (kg)|
|To Suit 0900mm Chamber||150||1230||Central||Central||Not Available||Not Available||Not Available||235|
|To Suit 1050mm Chamber||150||1230||Eccentric||Eccentric||Central||Eccentric||Not Available||235|
|To Suit 1200mm Chamber||150||1400||Eccentric||Eccentric||To Order||Eccentric||Not Available||356|
|To Suit 1350mm Chamber||150||1560||Eccentric||Eccentric||To Order||Eccentric||Central||503|
|To Suit 1500mm Chamber||170||1730||Eccentric||Eccentric||To Order||Eccentric||Central||890|
|To Suit 1800mm Chamber||175||2050||Eccentric||Eccentric||To Order||Eccentric||Eccentric||1208|
|To Suit 2100mm Chamber||178||2370||Eccentric||Eccentric||To Order||Eccentric||Eccentric||1745|
|To Suit 2400mm Chamber||178||2700||Eccentric||Eccentric||To Order||Eccentric||Eccentric||2200|
|To Suit 2700mm Chamber||205||3020||Eccentric||Eccentric||To Order||Eccentric||Eccentric||3380|
|To Suit 3000mm Chamber||225||3350||Eccentric||Eccentric||To Order||Eccentric||Eccentric||4300|
|To Suit 3600mm Chamber||300||3960||Eccentric||Eccentric||To Order||To Order||To Order||8800|
|To Suit 4000mm Chamber||300||4500||Eccentric||Eccentric||To Order||To Order||To Order||11400|
Cover Slabs BIM Model
At Marshalls we work alongside appropriate guidelines in which we are able to provide high quality 3D objects of our products that contain rich data to satisfy that information required by our clients.
We strive to improve the relationship with stakeholders and the BIM process enables us to share the relevant information.
- Our BIM models are available to download directly from our BIM library.
- We have a range of models available in AutoDesk Revit format including CoBie, IFC and NBS data.