READYMIX conc REt E EXPERIENCE TOPROC. LONDON UNDERGROUND THE ULTIMATE EARLY STRENGTH, HIGH ABRASION, HIGH WEAR CONCRETETOPROC ES THE CHALLENGE The ballast transfer facility at London Underground’s Ruislip site in north east London was badly worn and needed urgent replacement. A high traffic area, the replacement concrete slab not only needed to have high abrasive resilience, but also needed to be completed with utmost speed and with minim

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