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Abstract: Site and laboratory testing of sprayed concrete linings waterproofed with spray-applied membrane has been carried out over a period of 3 years. The site testing has been carried out in several full scale test sections as well as a longer section of a rail tunnel in hard rock in Norway. The linings were tested for moisture content and tensile bonding strength. The results of the site testing...
Abstract: Tunnel linings based on sprayed concrete and sprayed waterproofing membranes are being considered for rail and road tunnels in hard rock in Norway. One completed tunnel and several specially constructed test sections with this tunnel lining type have been sampled and investigated in order to determine the in-situ humidity condition of the tunnel lining. The measured humidity contents in the...