Kerbs
Design standards
All installations should be detailed and constructed in
accordance with BS7533: Part 3 and Part 6.
Haunching
All kerbing should normally be haunched with concrete to ensure
full stability and support for adjacent paving and to help
withstand occasional vehicular impact.
Access Kerb
Sub-grade
As for adjoining paved areas.
Sub-base
Material: granular type 1.
Compacted depth: 150 mm min.
Bedding and haunching
Material: concrete (grade ST1).
Transitions: use 1 or 2 component transition units as
appropriate between Access kerb and standard HB2 kerbing.
Note:
Excavation width should allow for use of mechanical handling grab
on base of Access Kerb (approx. 100mm)
HGV Kerb
Sub-grade
As for adjoining paved areas.
Sub-base
Material: granular sub-base type 1.
Compacted depth: 150 mm min.
Bedding and haunching
Material: concrete (grade ST1).
Note: When using HGV with dowel holes, it is
necessary to lay the kerbs on a fresh concrete kerb race and hammer
the dowel bars into the race after unit is placed. The holes should
then be grouted as specified by the engineer.
Detailing
Radii:
Select from 36/12, 11/7, 6/4.5, 3, 2, or 1.5 metre radius units to
form required radius kerb-line.
Angles:
Select 45°, 60°, or 90° quadrants as required.
Transitions:
Use 2-component transitions between HGV kerb and standard HB2
kerbing.
HGV Kerb: bedding/haunching
HGV Kerb: HGV with dowel bar detail – typical detail of new
installation
HGV Kerb: HGV with dowel bar – typical detail for use on bridge
deck, etc.
K-lite Lightweight Kerb
Kerbs should be laid on a concrete bed to grade ST1 to a minimum
150mm thickness.
Haunching concrete should be grade ST1 to the minimum
dimensions.
Concrete workability should be such that the haunch can be finished
as shown – filled to the top.
In areas of heavy trafficking, dowel bars may be required in the
concrete bed and haunch.
K-lite Lightweight Kerb
K-lite Tradtional and Countryside Classic Kerb
Sub-grade
As for adjoining paved areas.
Sub-base
As for adjoining paved areas.
Bedding and haunching
Material: concrete (grade ST1).
K-lite Traditional may be laid to full or half batter.
Countryside Classic minimum
dimensions:
Bed: 150 mm
Haunch: 100 mm.
Detailing
Radii:
K-lite Traditional - use shorter (290 mm or 456 mm lengths) units
to form radius kerb-line.
Countryside Classic - select from 1.8, 3, 6 or 9 metre radius units
(External only).
Driveway crossing:
K-lite Traditional.
Countryside Classic - use left-hand and right-hand droppers with
crossing kerb units.
K-lite Traditional Kerb: Laid to half batter (can also be laid to
full batter or vertically)
Countryside Classic Kerb
K-lite Traditional Kerb: crossing detail
Additional design detailing
In addition to those included in this guide, further detailed
drawings are available on request from Charcon Hard
Landscaping.
Contact Technical Services Department on 01335 372222.
Handling equipment
For appropriate handling and lifting equipment, contact Probst
Handling Equipment on 01939 235325.
Maintenance
Maintenance requirements are minimal under normal service
conditions.