Optimized Concrete for the Tunnel de Champel in Geneva

During the construction of the Tunnel de Champel in Geneva, MasterEase from Master Builders Solutions proved to be a well suited superplasticizer for sprayed concrete. MasterEase reduces the viscosity...

1 Introduction A growing global commitment to environmental protection on one hand, progressive resource exploitation and climate-related natural disasters on the other – the topic of sustainability...

Whether in tunneling, mining, hydraulic engineering or road construction, the application of sprayed concrete entails rebound – a significant time and cost factor. For this reason, Wacker Chemie AG...

1 Overview In the tunnel widenings for the Lungern bypass/CH, sprayed concrete was applied directly onto the flexible polymer waterproofing-membrane (PWM) in the arch area instead of inner lining...

1    Introduction The shotcrete method has become established in European tunnelling since the 1960s, and is carried out in the following steps: first, the rock is excavated, for example by...