By admin, on January 29th, 2010%
The following is a list of basic formulas for 270 ksi, 7-wire Prestressing steel strand (per ASTM-A416) used in Post-Tensioned concrete. . . . → Read More: Material Properties of Post-Tension Strands
By admin, on January 28th, 2010%
Shows the Plastic Extrusion process for Unbonded Post-Tensioning. Raw materials include steel PC Strand, corrosion-inhibiting Post Tensioning coating and HDPE plastic with color concentrate.
The steel strand is moving at over 200 feet per minute in the extrusion machine. First the steel PC strand is coated with corrosion-inhibiting Post-Tension Coating (“grease”). Then, the coated steel has either . . . → Read More: VIDEO: Plastic Extrusion of PC Strand for Unbonded Post-Tensioning
By rkhosa, on January 25th, 2010%
As 2008 and 2009 are behind us and 2010 is still young, I thought to share my insights with the reader about the Commercial Construction industry.
COMMERCIAL CONSTRUCTION (2008-2009)
2009 was a year that most in the construction industry would like to forget. Everyone is aware of the “Great Recession” which started in 2008 and deepened in 2009. . . . → Read More: Commercial Construction 2010