Liquid nitrogen hits target mix temperatures
- Published: Thursday, 17 May 2012 19:28
- Written by CP Staff
The St. Louis Zoo’s new sea lion exhibit, which is set to open this summer, features thematic concrete rock work constructed by Cemrock, based in Tucson, Az., and Seattle, Wash. Cemrock, which specializes in the construction, fabrication and installation of artificial and themed elements, used Xypex Concrete Waterproofing through Crystallization admixture in the shotcrete exterior to prevent leakage of the habitat’s salt water pools, underwater viewing areas, and an underwater walk-through tunnel.
HawkeyePedershaab’s newest packerhead machine series, ePak, incorporates the latest in drive and control technology, and mass produces high quality concrete pipe in 12- to 48-in. (300- to 1200-mm) diameter. With a small footprint, it can be installed in existing plants as a stand-alone machine or paired with automated handling technology.