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Common paving installation problems
Most paving installation problems have a snowball effect, where one problem leads to another, causing yet another problem. This ultimately results in complete and irreparable failure of a paved area.
EARTHWORKS
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Paving problems are mainly caused by inferior earthworks. When a paving site’s sub-base has failed due to incorrect earthworks, the result will be disastrous and irreparable.
EDGE RESTRAINTS
Inadequate or inferior edge restraints will lead to movement and subsequent loss of jointing sand.
LEVELLING
Uneven paving is unsightly and dangerous to walk on.
COMPACTION
Inadequate compaction of the sub-base will cause pavers to sag, resulting in water ponding, as seen in Drainage image below.
BEDDING SAND
Inferior or insufficient bedding sand might cause pavers to move and break.
JOINTING SAND
When jointing fails, pavers will move and edges, will chip or break. This might then lead to other problems.
DRAINAGE
Incorrect drainage will cause ponding, so that water infiltrates the sub-base, causing it to fail.
CUTTING
Good cutting will create a beautiful effect. By contrast, bad cutting will be very unsightly.
CAREFUL HANDLING
Careless and indiscriminate handling of paving will cause chipping and breaking.
ATTENTION TO DETAIL
If paved lines are not straightened and broken pavers are not removed, other problems could result.
CEMENT STAINING
Cement grouting can cause permanent stains on paving if the grouting is not correctly cleaned off the pavers.
SKILLED ARTISANS
Installing finishing touches is a skill. Small details, done incorrectly, can ultimately ruin an otherwise good installation.