Custom-designed inverted culverts for Mozambique power station

18 September 2015

Rocla has supplied precast concrete inverted culverts, lids and bases for use in the cooling channels at the R2.24-billion Gigawatt 100-MW natural-gas-fired power station near Ressano Garcia in Mozambique.

David Cooper, sales consultant for Rocla in Nelspruit, said: “Our technical team overcame the complicated design requirement for the 2100 x 1800 inverted culverts for the Gigawatt Power Station project.

For example, due to the culvert being used ‘upside down’, 123 shear links were inserted into each of the culverts as well as additional links that are not normally found in standard culverts. This ensured that the required strength was obtained for use in the cooling channels at the power station.

Despite these design challenges, we supplied the first batch of culverts a mere three weeks from receipt of design specifications from the customer.”

Rocla supplied seventy 2100 x 1800 inverted culverts; fifty 900 x 900 inverted culverts and fifty 900 bases and lids to the project.

This was the first power station order for the Rocla office in Nelspruit. The power station’s civils construction started in 2014, and the station is expected to be fully operational by the end of 2015.

Rocla is one of South Africa’s leading manufacturers and supplier of precast concrete products such as culverts, piping, poles, manholes, retaining walls, sewer pipes and other infrastructure related technologies.

Rocla is part of the Infrastructure Specialist Group, which also includes Technicrete and Ocon Brick.

More information from Guinevere Thomas, Tel: +27(0)116707733/email:[email protected]


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