The Crossrail project under London is the largest civil engineering project in Europe. We are proud to say that our BVC model TI80 15kW vacuum cleaner plays an important part of this process.
They have to lay a concrete base on which they lay the track. Before the concrete sets they spray the surface with a specialised chemical, this prevents the top 5mm of the surface from setting. Once the concrete is set they dilute the surface that’s remained soft by pressure washing. They then remove the concrete slurry with the TI80 collecting it into a 45 gallon drum via a cyclone head. The purpose of the exercise is to leave a rough surface to allow a second layer of special sound absorbing concrete to key to the base.
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