Sprayed Concrete for Tunnelling

For underground construction in tunnelling and mining, Putzmeister develops equipment particularly for shotcreting, but as well for material transport and other applications. The shotcreting product range includes mobile spraying robots as well as trailer-mounted units, with concrete conveying performances of up to 30 m³/h and spraying reaches of up to 17 m

For lower sections in tunnelling and mining, the company recently presented its next generation of concrete spraying equipment at Bauma 2010, Munich – the Sika-PM 4207. The main fields of application for this spraying system are immediate...