Brighton Marina - Ovingdean Coastal Protection Scheme
Client: Brighton & Hove Council
Concrete Design and Supply: Tarmac
Principal Contractor: Volker Stevin Ltd
Consulting Eng: Posford Haskoning Ltd
Project Brief
In August 2001 Brighton & Hove Council contacted Tarmac Limited,
as they wanted to maximize the abrasion resistance of the concrete
to be used in their forthcoming Brighton-Ovingdean Coast
Protection Scheme. This part of the south-coast with its shingle
beaches experiences very high abrasion damage on marine
concrete structures. The beach shingle being thrown against the
concrete structures during heavy storms causes this high level of
abrasion damage.
Tarmac proposed their Toproc ES
microsilica concrete and it was
to be trailed in repairs to a
stairwell in the existing sea wall
in January 2002. Following on
from the successful performance
of Toproc ES in this trial the
product was specified for the
construction of the Groynes,
Stairwells and ramps (The most
abrasive applications for cast
insitu concrete) within a project
consisting of the reconstruction
of 1800km of sea wall.
The project started in the
early summer of 2003.
Toproc ES - Tarmac Proposal
Toproc ES microilica concrete to be utilised in the most exposed areas to achieve an abrasion resistant cast insitu concrete. Toproc ES is one of a range of 14 end use specific formulations. Its typical 24-hour strength is in the range of 30 to 40N/mm2 and its typical 28-day strength is 80 to 90N/mm2. It is this high compressive strength that gives excellent abrasion resistance to resist damage. The long-term wear resistance of Toproc ES has been well proven in many high abrasion applications.
Toproc ES Performance
6000m3 of Toproc ES microsilica concrete was supplied into the project over the 18-month period up to June 2003 and its performance is matching that of the original stairwell trial concrete supplied back in January 2002.
Last updated: 19 September 2008
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