Farnborough Airport

The installation of a landing light system required the excavation of several 100mm wide by 200mm deep trenches running across the main landing strip.

Each 15 metre length of excavated trench needed to be reinstated and open to airport traffic within the 6 hour night shift allowed to affect the works.  webercem pyrabed was selected to provide a workable open time of 15 minutes allowing sufficient mixed mortar to be placed and finished within one operation. The mortar was blended on site with 30% by weight of 10mm aggregate to limit the exotherm produced during hydration and to provide a more economic repair system. An average of 80 linear metres of trench per shift was reinstated allowing the runway to remain in service until it was resurfaced one week later.

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