Overview

This is the road bridge slab waterproofing method* that can be expected to provide exceptional waterproofing and reinforcement effects through the combined use of a highly permeable waterproofing material that deeply penetrates into and adheres to penetrating cracks and fine cracks in concrete slabs and an asphalt-heated coating for the waterproofing material. Because application and curing times are short, this method is suitable for repairing bridge surface pavements where time constraints apply.

*Complies with the design guidelines of the Metropolitan Expressway Company Limited.

Features

1. Exceptional waterproofing effect on concrete deck slabs: An exceptional waterproofing effect can be achieved by combining a primary waterproofing layer (highly permeable waterproofing material) with a secondary waterproofing layer (asphalt-heated coating for the waterproofing material).
2. Reinforcing effect of concrete deck slabs: The highly permeable waterproofing material deeply penetrates into and adheres to penetrating cracks and fine cracks to restore the rigidity of the concrete deck slabs.
3. Rapid application in a short period of time: The highly permeable waterproofing material cures very quickly even at low temperatures (5°C) (curing time of approx. 20-30 minutes). Application work can therefore be carried out in a short period of time.

Uses

• Areas with heavy traffic and subject to substantial traffic restrictions and construction constraint
• Areas where it is difficult to take measures from underneath slabs
• Areas that need to be immediately opened up to traffic by repairing the asphalt pavement and engaging in slab-waterproofing work at the same time