Abstract
Chemical grouting agents are used to reduce water leakages encountered in tunnel constructions. The object of the work presented in this paper was to study the leakage pattern and the amounts of substances released during use of two different grouting agents. The acrylate-based grouting agent MEYCO MP 307 and the isocyanate-based product TACSS NF/020 were used in the construction of the tunnel Romeriksporten, Norway, in 1998−1999. Drainage water from the tunnel was monitored with respect to the chemicals expected to pose the highest environmental risk. A total of 62 tons of MEYCO and 80 tons of TACSS were used during the monitoring period. The proportion of the products that appeared in the drainage water was estimated from monitoring data, data on water transport out of the tunnel, and the recorded amounts of grouting agents used. Average leakages of acrylic acid, methacrylic acid, and 2-hydroxyethyl methacrylate were estimated to be 1.2%, 0.6%, and 0.5% (w/w), respectively, of the total amount of MEYCO ...
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
