Uijeongbu, South Korea

Description:
The addition of a new ramp for the Dongbu Expressway also included the construction of a traffic tunnel. However, due to problems with water leaks in previous tunnel projects under the Expressway, the project managers looked for a new – and more effective – waterproofing solution. The waterproofing material needed to withstand the road vibrations above, eliminate water leaks, which would help minimize later repair work (and traffic interruptions).

Products Used:
PENETRON ADMIX-treated concrete was used at the concrete walls, floors and ceilings of the tunnel. It quickly eliminated the problem of leakage through cracks caused by the constant road vibrations. In addition, the concrete now has a self-healing capability to seal later cracks and help keep the structure watertight.