Every two years, industry leaders and practitioners from around the world gather at the Rapid Excavation and Tunneling Conference (RETC), the authoritative program for the tunneling profession. This comprehensive book includes more than 100 papers from industry experts, highlighting their most recent projects and sharing real-world experiences that will keep you up to date on the latest tunneling trends and technologies.After 1 0 pours the overall cycle was typically 48 hours (4 shifts). Of the 48 hour cycle, concrete placement took only 7 hours. The following ... Stripping strength of 4 MPa had to be reachable within 12 hours. ... A minimum 180 mm slump was needed because of the limited access behind the form to place and vibrate. At 220anbsp;...
|Title||:||Rapid Excavation and Tunneling Conference Proceedings 2013|
|Author||:||Michael A. Diponio, Chris Dixon|
|Publisher||:||SME - 2013-06-24|