Roadcem Case Study
CASE STUDY 1: RoadCem provides solution for Lanseria Airport’s new runway
The major R168 million upgrade of Lanseria Airport included a new runaway, main apron and other areas for parking planes. This was a fast track project that had to minimise disruption to the airport service and involved milling of the old runaway paving, as well as major modifications for better stormwater drainage. RoadCem was chosen as the preferred soil stabiliser in all areas: 5 290 tons have been used to date and ongoing work will require a further 1 500 tons.
CASE STUDY 2: RoadCem chosen for major national road upgrade projects
In 2013, Lafarge South Africa was awarded the contract to supply its specialised cementitious roadbinder, RoadCem, for the rehabilitation of Section 2 of the R23 national road between Standerton and Greylingstad in Mpumalanga. The main contractor for this R637 million Phase 1 upgrading contract is Roadcrete Africa, a subsidiary of Basil Read. It covers a distance of 52 km, and has a contract duration of 36 months. The work involves rehabilitation and strengthening of the existing road by removing the thick bituminous layers and adding a new sub-base stabilised with Lafarge RoadCem, crushed stone and surfacing layers. The road will also be widened.
Roadcrete Africa also awarded Lafarge the supply contract of RoadCem for Phase 2 of the R23 rehabilitation, covering Section 1 of the national road between Platrand and Standerton, a distance of 26 km. Valued at R358 million, the project started in July 2013 and is a 24-month contract.
As for Phase 1, the project includes rehabilitation and strengthening of the existing road, as well as the upgrading and widening of several bridges and major culverts to accommodate the widening of the road.
CASE STUDY 3: RoadCem used for Phase II Waterkloof runway contract
Lafarge Cement was awarded the soil stabilisation contract for the Phase 2 upgrading of the secondary runway at the Waterkloof Airforce Base.
Contractor VEN Construction used 1285 tons of the innovative Lafarge roadbinding cement, RoadCem, for the soil stabilisation on the challenging project. The RoadCem was supplied from Lafarge’s state-of-the-art Randfontein Grinding Station. Waterkloof’s original runways were constructed on unstable dolomitic ground and had been closed for almost two years because of the formation of sink holes that made it too dangerous for aircraft to land. The design of the new runways had to protect against this happening again and also cater for heavier modern aircraft.