Amerada Hess, Nigg Bay Oil Storage Platform
Project: Nigg Bay Oil Storage Platform
Client: Amerada Hess
Contractor: Taylor Woodrow
Product: ADVA® Superplasticizer
The Challenge . . .
A massive project, the Nigg Bay Oil Storage Platform required thousands
of meters of formed vertical wall. Slip-forming was the construction method
utilized for the walls to help create a watertight structure. The mix specified
required high strength concrete with low density/high workability to enable
transportation and placing around dense reinforcement and post-tensioning
ducts. The concrete also needed to remain workable throughout its transportation
and placement. The original mix used caused a slowdown in the forming rate
and could not meet the tight scheduling requirements.
The Solution . . .
The Grace Construction Products team was brought in to consult on the
concrete mix. The team recommended ADVA Superplasticizer to achieve all
the criteria laid down by the contractor for the concrete. The addition
of ADVA to the mix produced a high strength concrete with a minimum water/cement
ratio, a high degree of workability, and improved finishing characteristics.