Concrete hydrodemolition technology used in Johannesburg bridge rehabilitation

completed

Major structural repairs to the M1 North highway bridges over Oxford and Federation Roads in Johannesburg were recently completed. The removal of superfluous concrete in preparation was made possible through hydrodemolition, which was successfully undertaken by Total Blasting, South Africa’s leading water jetting solutions company. Hydrodemolition technology was employed to remove deteriorated concrete from the structures without any damage to existing steel reinforcement. Challenges to the hydrodemolition aspect of the project included site access, which was limited due to the nature of the roadworks and construction as well as channeling sufficient water to site in order to feed the pumps, which was managed by using multiple road tankers to carry the water.