Housing Giants - September 24, 2008 - (Page 14) Process By Michael Dickens, BuildIQ Stop CraCKS in poSt-tenSion Slab FoundationS Know how problems happen and follow these tips to avoid them. Slab-on-grade foundationS are one of the most popular types of foundations in the U.S. They’re quick and inexpensive to build and are great in southern climates where the freezing depth in the soil is shallow. In these climates, slab-on-grade foundations work well, as long as the slab is built to a good standard of quality and performance. Typically, the largest concern with slab-on-grade foundations is cracking. Concrete naturally experiences some cracking as it shrinks during the curing stage. These natural cracks are known as shrinkage cracks. Shrinkage cracks appear as a displacement or separation in the surface of the concrete and are hard to prevent. Shrinkage cracks aren’t detrimental to the performance of a slab, but they can be unsightly and cause cosmetic damage to interior floor finishes. Concrete can also experience cracking when certain soil conditions are present. These soil conditions, which we’ll discuss in a minute, require additional measures to ensure the quality and performance of the slab. One such additional measure is to reinforce the slab through a process called post-tensioning. reinforcement Post-tensioning compresses concrete, enabling it to resist both shrinkage cracks and cracks caused by difficult soil 14 HouSing giantS.9.24.08 www.HouSinggiantS.com http://www.buildiq.com/ http://jobsite.buildiq.com/articles/risk-management/post-tension-slab.aspx http://www.cement.org/tech/index.asp http://www.vsl.net/Portals/0/vsl_datasheets/what-pt.pdf 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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