Concrete Cracking > Crack & Seat

Crack and Seat is a technique where an existing concrete slab is cracked at controlled centres to create discrete mini slabs.  These slabs are then rolled with a 10 or 20 tonne pneumatic tyred roller to seat them into the existing granular base.


This creates a sound foundation for a flexible overlay preventing reflective cracking of the new surface.


Webfell Minerals have three machines capable of producing this foundation overlay.


The smallest machine, the Whiphammer, is used on estate roads and concrete car parks and materials stocking areas.  Here the concrete is cracked to produce a star pattern of slabs ready for seating and overlay.


On main highways one of the two Guillotine Breakers are used.  Here the slab is cracked transversely across the carriageway width at defined centres, typically 1 metre, to produce the mini slabs.  Seating and overlay then takes place.


Recent Crack & Seat Schemes


If you require a project list to date, please contact Paul Kirk at paul@webfell.co.uk


May 2014 - Breedon Aggregates A9 Aberuthven


May/April 2014 - Aggregate Industries A591 Kendal Bypass


April 2014 - Alun Griffiths Bristol County Council Estate Roads


March 2014 - Aggregate Industries/Derbyshire County Council Estate Roads


February 2014 - Derbyshire County Council Estate Roads


February 2014 - Thomas Bow Coleman Road, Leicester


Project Profiles:



Derbyshire Estate Roads

Client: Derbyshire County Council
Completion Date: Work Ongoing from November 2008 to Present Date
Contract: Crack & Seat

...read more

A75 Dumfries

Client: Amey & Scotland Transerv
Completion Date: October 2011 to July 2015
Contract: Crack & Seat

...read more

A9 Aberuthven

Client: Breedon Aggregates
Completion Date: May 2014
Contract: Crack & Seat

...read more

A591 Kendal Bypass

Client: Aggregate Industries
Completion Date: May 2014
Contract: Crack & Seat

...read more

Weston Airfield

Client: Kenny Group/Bristlewand Ltd
Completion Date: July 2013
Contract: Crack & Seat

...read more

Bristol Estate Roads

Client: Bristol County Council
Completion Date: January 2013
Contract: Crack & Seat

...read more

A9 Faskally

Client: Breedon Aggregates and Scotland TranServ
Completion Date: March 2011
Contract: Crack & Seat

...read more

RAF Marham

Client: BAM Nuttall
Completion Date: January 2011
Contract: Crack & Seat

...read more