BASF

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 of the concrete, making it less sticky and therefore easier to pump and apply. This is a significant advantage for sprayed concrete applications. MasterEase UG 3904 increases the workability time and, when applied, the concrete hardens more evenly on the tunnel wall.

Thanks to the use of MasterEase, the Swiss tunneling contractor Marti Tunnelbau AG was able to switch to a more economical cement...

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BASF

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...

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Issue 01/2010 New Products

Polymer-modified sprayed concrete from Wacker Chemie AG

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...

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Issue 05/2021

Ways to Reduce CO2 in Sprayed Concrete for Tunnel Construction

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...

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Lungern Bypass: Sprayed Concrete Application directly onto Polymer Waterproofing Membranes

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...

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Issue 04/2023

High Performance Steel Fibres Offer New Possibilities for Permanent Sprayed Concrete Lining

Conventionally, tunnels constructed using sprayed concrete have been based on a temporary sprayed concrete lining to stabilize the opening after excavation and to contain short to medium-term loads....

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