Sparks, NV (PRWEB) June 27, 2012
For decades reinforced precast concrete box culvert has been used in infrastructure construction for applications such as intakes, outtakes, holding tanks, steam tunnels, corridor links, road crossings, service tunnels, utility trenches, conveyor tunnels, drainage culverts, environmental encasements, and cattle/wildlife crossings.
Traditionally, four-sided monolithic box culvert has been the standard in the industry. However, installation is tedious and time consuming because setting the pieces requires tugging the joints together with a pulley system. The “tug up” operation frequently drags sub-grade materials into the joint. These materials can compromise the sealant and leave large joint gaps which allow infiltration of water as well as the bedding materials.
To combat the challenges of monolithic box culvert installation, Jensen Precast made a commitment in 2003 to produce a style of cantilever wall box culvert. Cantilever wall box culvert is three-sided with a bottom and two sides. The top is cast separately and put into place after the base structure in installed. The three-sided design allows for the culvert to be installed vertically and dropped into place, rather than tugged. Not only does cantilever wall box culvert save numerous hours in the field, it also provides cleaner, tighter joints with significantly lower chances of infiltration.
“Many of our customers switched from traditional four-sided monolithic box culvert to cantilever wall after we introduced it in our area,” said Rusty Stever, Senior Vice President of Jensen Precast. “But there is still a large demand for monolithic box culvert.”
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