Block Paving







Design
Laying design can make a significant contribution to the overall
appearance of the area to be paved. The options for distinctive end
results – whether from patterning of an individual product, or via
combinations of products and shades are almost infinite.
This section is, therefore, necessarily confined to basic
principles only, from which designs to suit specific projects may
be developed individually.
Preliminary checks
Ensuring that the specified paving system is suitable for its
intended purpose is a fundamental requirement. Before deciding on
laying design, therefore, it is advisable to validate product
selection against anticipated traffic, loadings etc.
The following checklist may, therefore, be
helpful:
- Is the paving area designated for pedestrian use only – or is
any vehicular trafficking likely?
- Will any vehicular trafficking:
- Be occasional overrun only, or regular?
- Be limited to cars only?
- Include light commercial vehicles?
- Extend to HGV/heavy duty loading?
Accordingly, under normal service conditions, does the selected
paving meet the necessary criteria in terms of strength, thickness
and declared traffickability?
General principles
Design and overall looks may be influenced by one or more of the
following:
Laying patterns
The principal patterning styles are as listed and illustrated.
However, there are other options which may be influential on final
laying design and contribute attractive visual results.
These include:
- Complementary combinations of more than one paving
type/product.
- Combinations of two or more pattern styles.
- The use of such variations for functional zoning
(e.g. to denote designated walkways) as well as decorative
effect.
Edge details
Edge detailing requirements are largely dependent on the adopted
laying style. Certain patterns resulting in irregular edges can be
completed by cutting units to fit. In some cases, however, this is
difficult or unsatisfactory because only very small cut pieces
would be required to abut kerbs or other edge restraints.
Stretcher courses
Such cases can be resolved by planning perimeter stretcher courses
(either single or double) to ‘frame’ or part-border the main paved
area in question. Stretcher courses may also be planned for other
laying patterns for purely aesthetic reasons.
Colour contrasts
Differing shades of the same, or a complementary, paving product
may be used for zoning purposes or simply to add to the aesthetic
appeal of the end result.
Edge restraints/detailing
All paved areas require strong and stable edge restraints.
Wherever selected patterning results in an irregular perimeter,
edge detailing for the paved area needs to be pre-planned to ensure
neat finishing against kerbing, walling or other adjoining
areas.
Key to trafficking:
- A: Pedestrian and occasional
vehicle overrun (maximum 5 commercial vehicles per day)
- B: Regular/heavy vehicular
traffic and heavier vehicles (over 5 commercial vehicles per
day)