Paper by SRUTKA HULA from ISCR 12th 2014 Prague Czech Republic
A frequently noted disadvantage of cement concrete pavements is repair time. For further application of this technology, it was necessary to eliminate this disadvantage and significantly reduce repair time. Therefore, Skanska developed the "Fast-setting concrete technology". In-house development commenced in 2005. MC Bauchemie, design engineers and investor representatives also participated. Work began in the laboratory followed by tests in simulated construction site conditions and completed with the first repair of a highway concrete pavement. Verified on highways, the technology was tested on runway junction RWY 06-24 - RWY 13-31 at Prague Ruzyn? Airport. The repair necessitated limiting operation of the entire airport (both runways). The repair of this critical location necessitated cooperation between the investor, design engineer and Skanska as the contractor and know-how holder. The task was the repair of a cement concrete apron on RWY 06-24 at junction TWY D, the most burdened part of the airport in terms of aircraft traffic. The area designated for replacement covered 1,135 m2 with a concrete thickness of 250 mm. The time limit for the repair was 72 hours.
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