St Helena : RESURFACING OF GRAND PARADE
Submitted by Saint Helena Herald (Public Relations Information Office) 02.06.2013 (Article Archived on 30.06.2013)
Work started yesterday (27 May 2013) to resurface the western side of Grand Parade. This work is intended to remove a lot of the scarring and damage which has occurred over the years. If left unattended when the much hoped for rain arrives, the surface could have broken up and become dangerous.
RESURFACING OF GRAND PARADE
Work started yesterday (27 May
2013) to resurface the western side of Grand Parade. This work is intended to
remove a lot of the scarring and damage which has occurred over the years. If
left unattended when the much hoped for rain arrives, the surface could have
broken up and become dangerous.
The Roads Section has decided to
use the newly developed MicroAsphalt, or Slurry Seal, for this work. There are
many reasons for this, and it should provide a more suitable finished surface
than traditional surface dressing would have done. Slurry Seal has been tested
in small patches around the Island, with a large scale resurfacing carried out
on the Upper Plantation Road. In general, these trials have all been
successful, and it is expected that the use of this material in the heavily
trafficked Grand Parade will be the final validation of the process and
MicroAsphalt is a mixture of
Bitumen Emulsion (a mixture of Bitumen and Water), various sizes of Grit and
Dust, Cement and Water. It is mixed at room temperature in a cement mixer and
spread by hand. The material goes off, or cures, by the water from the emulsion
and the added water evaporating out of the mixture, leaving behind the cement
enhanced bitumen. The speed with which this process takes place varies
depending upon weather conditions, temperature and layer thickness.
When first laid, MicroAsphalt can
look unappealing and is considered by some to be less attractive when compared
to other methods of resurfacing. But, once the material has cured properly and
been trafficked for a few weeks, it wears and increasingly looks like any other
Resurfacing an area like Grand
Parade is never going to be a simple process and there will always be
inconvenience. Over the next 4 weeks, Roads Section will be cordoning off
different sections from Sunday to Wednesday, as work progresses. The timing of
the work has been chosen to minimise disruption to the public - with no work on
Thursdays to Sundays and no work on Ship Days. We ask the public to be patient
during this vital work, finding alternative places to park when necessary.
It may occasionally look like part
of Grand Parade is closed off for no reason, but Slurry Seal requires 24-48
hours to ‘go off’ (cure), so it may be that the surface has not yet achieved
sufficient strength to drive or walk across.
Please respect the
barriers, as if you cross the surface too early you risk getting bitumen on
your shoes or paintwork.
In the short term, there will be
periods when parking spaces are not marked out. During these times, please park
responsibly to avoid blocking people in. Once the surface has cured, new
parking spaces will be marked in a slightly different arrangement. The new
arrangement is intended to make Grand Parade a more welcoming sight, to
slightly increase the size of individual parks, and to make it easier for Grand
Parade to cope when there is increased demand for parking, such as on St