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The inertia base with a width of 60 m and a length of 16 m at the Brussels Airport runway, probably dating from the 70’s and already resting on isolation pads, was to be renovated as the long term stability of the existing pads could not be guaranteed.
To limit the timeframe during which the runway would be out of service, CDM Stravitec suggested keeping the existing inertia base and only replacing the old isolation pads by means of an innovative frozen bearing replacement method.
More than 2000 new, pre-compressed, Stravibase SEB elements were slid under the inertia base through around 500 drill holes. These new elements now take up the load from the old pads so that a long term functioning of the inertia base can be guaranteed.