CASE STUDY
QUALITY ASSURANCE
Upgrades and reparations on the N4 toll road January 2022 – July 2023 | South Africa | TRAC – Trans African Concession
DESCRIPTION This project aimed to upgrade and repair the National route N4: a toll road and the major artery linking Gauteng with the east coast of South Africa and the Mozambique border. It forms the South African section of the Trans-Kalahari Corridor linking the east and west coasts of Southern Africa. As the economic hub of South Africa, Gauteng is the smallest province, but has over 12 million inhabitants and plays an important role in the financial, manufacturing, transport, technology, and telecommunications sectors of the country. Improving the roadways was essential. Part of this road is concrete and therefore took more skill than the norm. PROJECT KEY FEATURES 6.9 KM Road patched using concrete and asphalt 1 bridge rehabilitated Culverts cleaned and errors corrected Testing 15,000 m2 road layers, 20,000m2 concrete and 15,000m2 asphalt layers.
SERVICES Testing of all materials on site to ISO 17025 (aggregate, concrete and soil) A dedicated laboratory was established on site to the client’s specifications
HIGHLIGHTED SERVICES
CMT laboratory analysis
Source: Wallich Residence
Roads & Highways services
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