Tesco Merthyr Tydfil is a car park constructed from a steel frame, precast concrete planks, together with a structural topping receiving 40mm of asphalt providing a protective waterproofing layer.

The steel frame was constructed so that a single fall from the store to the end of the car park collected rainwater run off in one large singular curved gutter.  This gutter was poorly constructed allowing water to bypass between the steel frame and gutter supports resulting in heavy corrosion and large volumes of water dropping onto vehicles below.

The existing asphalt layer had a heavy stone content but was suffering from splits and adhoc repairs which had failed resulting in water penetration and the formation of stalactites on the soffits below.  Continued water penetration had caused the existing painted steel structure to corrode and begin to lose sectional thickness.

The project required the removal of 550 tones of asphalt…

See the .pdf for the full Car Park Refurbishment Case Study…

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