Colombo Outer Circular Highway
Jobsite description
Construction of the Outer Circular Highway to the City of Colombo (from Kadawatha to Kaduwela) under the Ministry of Port and Highways Road Development Authority (RDA) which comprises:
- A 4-lane main highway of 8.9 km long
- 2 interchanges
- 21 bridges
CHRYSO expertise
CHRYSO® high performance admixtures provide high workability, high strengths, and good cohesion of concrete and durability of structures.
CHRYSO®Omega 101 and CHRYSO®Omega 104 have been used for superstructures and underground structures, including 1700 bored piles for foundations.
- Both products are specially adapted for admixture of concrete with crushed sand without increasing the binder dosage
- 2 hours of maintenance obtained at the required strength level
Used products
- CHRYSO®Fluid Optima 100
- CHRYSO®Omega 101
- CHRYSO®Omega 104
Project technical challenges
CHRYSO®Fluid Optima 100 was used to manufacture 1957 prefabricated beams.
Result:
- Fluid concrete delivered and high early age initial strengths that facilitated the stripping of the beams
- Cohesive concrete despite lack of aggregates and variations in local constituents
Colombo outer circular highway photo gallery
Project participants
Owner: RDA
Constructor: Taisei Corporation (Japon)
RMC Suppliers, precast Girders: Taisei Corporation
Structural concrete works: Tokyo Supermix
Bored Piles: Access Engineering
Other references
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