The Contracting Authority wants tenders for supply of consulting services for durability of shotcrete in road tunnels. The purpose of the procurement is to have condition surveys of shotcrete carried out in six different road tunnels, with emphasis on rock support. A main priority is to compare the material properties of intact and broken down shotcrete. The investigations comprise visual registrations, drilling of concrete cores and the subsequent laboratory investigations. In addition water samples shall be collected along with other test materials which shall be analysed by the Contacting Authority. Any observation of damage to shotcrete for Fire safety by PE foam shall also be visually documented, without sample taking/testing. The assignment is part of the agency program Durable constructions (2012-2015).
The assignment has a duration up until 31.12.2014 with the possibility of extension for 1 + 1 + 1 years, such that the total possible agreement length is 4 years.
Closer description of the procurement is stated in the tender documentation part D "Description/Requirements Specification".