(Information drawn from Concrete Segmental Paving Maintenance Guide)
Start a Routine
Save time and money by employing a routine of preventive paving maintenance techniques that include:
Regularly clean pavements – Many materials (eg. leaves) will only stain or discolour pavers if they are allowed to remain in contact with
the surface for prolonged periods.
Maintain the jointing sand to protect the pavement’s structural integrity.
Regularly check pavers for small, localised problems and repair them promptly – this can help you avoid having to undertake major maintenance
of large areas.
Concrete segmental pavements can be routinely cleaned just like any other pavement. However, precautions must be taken during the very early life
of the pavement to avoid removing the jointing sand during cleansing operations. Pressure water cleaners should be avoided until the joints
have become naturally clogged with detritus. This normally occurs once the pavements have been in use for three months.
Prior to this, pavements should be cleaned with soapy water and a stiff broom.
Irrespective of whether the pavement has been sealed or allowed to clog naturally, the condition of the joints should be monitored once routine
cleaning operations commence.
Any procedure that leads to loss of jointing sand should be suspended until the problem is rectified as ineffective cleansing can lead to the failure
of pavements if the joints lose too much sand.
Removing Stains from Pavers
Stains from many materials such as leaves will only stain pavers if they are left in prolonged contact with the pavement.
The best strategy to keep a pavement in pristine condition is to regularly remove all rubbish and leaves using a broom and then flush the pavement
The use of water alone to flush debris from the pavement is not recommended because this will often concentrate organic materials likely to cause
staining in low lying areas and adjacent to drains.
Brush light, non-penetrating stains with a stiff broom in conjunction with a light application of sharp sand.
Persistent stains can be removed using a variety of chemicals and proprietary cleansing agents. These must be chosen with regard to occupational
health and safety and the environmental impacts of runoff etc.