Housing Giants - September 24, 2008 - (Page 15) conditions. Steel strands are run through the concrete in a grid pattern. Each strand is housed inside plastic sheathing that protects the steel from corrosion and allows it to move during the stressing operation. Each strand is gripped by an anchorage on each end. The combination of the strand, sheathing, and anchorages is called a tendon. As each tendon is pulled tight, the steel stretches and is held in place by the anchorage, keeping the tendon tensioned for the life of the foundation and helping the slab resist forces that act to pull it apart. WHAT CAN CRACKS COST? The last thing you want to throw away money on is a defect in the foundation. Defects such as slab cracks can be costly to repair after construction. Removing the interior floor finishes to make repairs to the slab is both expensive and time-consuming. Imagine removing a ceramic tile floor from the surface of a slab. Depending on the extent of the damage, you may also have to put up the homeowners in a hotel during the repair. For these reasons, the average cost to repair cracks in a slab foundation ranges from $5,000 to $10,000! ANATOMY OF A TENDON INSTALLATION DIFFICULT SOIL CONDITIONS In general, it’s more expensive to build a post-tension slab-ongrade foundation than a traditional one. The reason behind the extra expense is that the foundation must be more substantial to accommodate difficult soil conditions that have Illustration courtesy of IBuildIQ WWW.HOUSINGGIANTS.COM 9.24.08.HOUSING GIANTS 15 http://www.post-tensioning.org/application_slabonground.php http://www.post-tensioning.org/application_slabonground.php http://WWW.HOUSINGGIANTS.COM
Table of Contents Feed for the Digital Edition of Housing Giants - September 24, 2008 Housing Giants - September 24, 2008 Contents Viewpoint News & Moves Process Bandwagon Effect Housing Giants - September 24, 2008 Housing Giants - September 24, 2008 - Housing Giants - September 24, 2008 (Page Cover1) Housing Giants - September 24, 2008 - Housing Giants - September 24, 2008 (Page Cover2) Housing Giants - September 24, 2008 - Housing Giants - September 24, 2008 (Page 3) Housing Giants - September 24, 2008 - Housing Giants - September 24, 2008 (Page 4) Housing Giants - September 24, 2008 - Contents (Page 5) Housing Giants - September 24, 2008 - Contents (Page 6) Housing Giants - September 24, 2008 - Viewpoint (Page 7) Housing Giants - September 24, 2008 - Viewpoint (Page 8) Housing Giants - September 24, 2008 - Viewpoint (Page 9) Housing Giants - September 24, 2008 - News & Moves (Page 10) Housing Giants - September 24, 2008 - News & Moves (Page 11) Housing Giants - September 24, 2008 - News & Moves (Page 12) Housing Giants - September 24, 2008 - News & Moves (Page 13) Housing Giants - September 24, 2008 - Process (Page 14) Housing Giants - September 24, 2008 - Process (Page 15) Housing Giants - September 24, 2008 - Process (Page 16) Housing Giants - September 24, 2008 - Process (Page 17) Housing Giants - September 24, 2008 - Process (Page 18) Housing Giants - September 24, 2008 - Process (Page 19) Housing Giants - September 24, 2008 - Bandwagon Effect (Page 20) Housing Giants - September 24, 2008 - Bandwagon Effect (Page 21) Housing Giants - September 24, 2008 - Bandwagon Effect (Page 22) Housing Giants - September 24, 2008 - Bandwagon Effect (Page 23) Housing Giants - September 24, 2008 - Bandwagon Effect (Page 24) Housing Giants - September 24, 2008 - Bandwagon Effect (Page 25) Housing Giants - September 24, 2008 - Bandwagon Effect (Page 26) Housing Giants - September 24, 2008 - Bandwagon Effect (Page Cover4)
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