Precast concrete products manufacturer Rocla will supply the last of three orders for precast concrete stormwater pipes and wing walls placed by Durban-based multidisciplinary civil engineering construction company and project contractor EXR Construction for the R680-million Lesotho road project.
The first order of the R10-million supply contract, which was awarded to Rocla in September 2011, was delivered between October 2011 and February; while the second order was delivered between March and August.
The final order, which was placed in September, will be completed in February 2013, says Rocla regional sales manager Adrian Clarke.
Depending on the amount of units required by the project, the delivery times on the products varied between five days and three weeks.
In total, Rocla will supply about 7 000 m of precast con- crete stormwater pipes, with diameters between 600 mm and 1 500 mm, and more than 500 precast concrete wing walls from its factory in Virginia, in the Free State.
Clarke says the products were divided relatively equally and consisted of interlocking-joint stormwater pipes with a strength class of 75D with diameters of 600 mm, 900 mm, 1 200 mm, 1 350 mm and 1 500 mm.
The precast wing walls can accommodate pipes with diameters of 600 mm, 750 mm, 900 mm, 1 200 mm, 1 350 mm, he adds.
The Lesotho road project entails the design and construction of 80.3 km of road starting at the town of Roma, through the town of Ramabanta into the Lesotho mountains and ending at the town of Semonkong.
Owing to the fast-paced nature of the project, which required advanced planning of production schedules, EXR Construction and the project’s consulting and design engineer BVI Consulting Engineers chose Rocla, owing to the manufacturer’s high-quality, cost-effective and easy-to-install ISO 9001/2000-certified precast manufactured units.