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    Top 10 Biggest Mistakes Made in Post-Tensioned Concrete

    post-tensioned slab Another popular myth with post-tensioned slabs is that it is very difficult ... ternal post-tensioning, and post-ten-sioned slabs on grade. Over the past two years, he has participated in a post-tensioned concrete seminar series for the Post-Tensioning Institute.

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    Post-tensioned Slab on Ground Foundations| Concrete

    Top 10 Biggest Mistakes Made in Post-Tensioned Concrete Design. Claudia Israel. January 20, 2016. ... a properly designed post-tensioned concrete slab will minimize cracking due to shrinkage. We recommend using PT for temperature and shrinkage reinforcement. ... The finishing process includes cutting strand tails, installing the protective end ...

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    Problems with cutting Post Tension Cable concrete slabs …

    Post-tensioned Slab on Ground Foundations ... Most geotechnical reports require a minimum embedment of 12 to 18 inches below the lowest adjacent grade. This depth activates the appropriate bearing pressure and provides a partial water stop to minimize moisture intrusion under the foundation. The footings are typically located under bearing or ...

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    Post tension slabs - JLC-Online Forums

    Cutting post tension cables can be very dangerous. Structural engineers and contractors in San Diego, Orange, and Los Angeles counties use post tension cables in residential concrete slabs to offset the effects of expansive soil conditions that exist in most of southern California.

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    Post-Tensioned Tennis Court Construction | Renner Sports

    Dec 14, 2005· I am looking for input on the pros and cons of post tension slabs or alternatives if any. ... look around the PTI site you can find info on installation details not so you can do it but so you can understand the process and make sure there are no glaring omissions. ... The problems with post-tensioned slabs-on-grade came in when builders ...

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    BBR | What is post-tensioning?

    Post-Tensioned Slabs on Ground Part 3: Proper Detailing and Quality Control By Bryan Allred, S.E. ... This is the third of four articles on post-tensioned slab on ground design and construction. This article will focus on detailing and quality control, while the ... process so the appropriate number of …

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    Post-Tensioned vs. Rebar Slabs - Nishkian

    Post-tensioned concrete is the preferred method for new tennis court construction and rebuilding of old tennis courts. Renner Sports Surfaces has over 27 years experience in the design and construction of post-tensioned concrete tennis courts, utilizing installers trained and certified by the Post-Tensioning Institute. ... Cable Placement Forms ...

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    Making A Channel In A Post Tension Slab - Building

    – Includes post-tensioned slabs-on-ground for light residential construction ... Prestressing Strand for Barrier Cable ApplicationsPrestressing Strand for Barrier Cable Applications ... Microsoft PowerPoint - Neff FtWorth 050310.pptx Author: TedN Created Date:

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    Post Tension Slab – Step-by-step Process

    involved in the execution of repairs, modifications, and strengthening. REPAIRS, MODIFICATIONS, AND STRENGTHENING WITH POST-TENSIONING LARRY KRAUSER ... or shoot pins into post-tensioned slabs where tendons may be located. Many times inexperienced contractors may ... strand in a continuous process. The industry has further

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    Steel Rebar vs. Post Tension Cables | Diamante Custom …

    Post-tensioning (PT) is a fiendishly clever way of reinforcing concrete to permit thinner concrete sections, longer spans between supports, reduced material usage and faster construction time.

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    conventional vs post tension slabs? | TigerDroppings.com

    Post-Tensioned vs. Rebar Slabs May 03 2016 · 0 comments · Concrete, NISHKIAN DEAN · 0 Reinforced concrete slabs have been used in buildings from the middle of the 19 th century. Post-tensioned concrete slabs have been used since the 1930’s, and …

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    VSL | Post-tensioning strand systems | Post tension

    Aug 22, 2009· Regardless of whether the process is pre-tensioning or post-tensioning, the end result is a concrete slab with steel tendons that are stressed using a jack, and retain their tension after the slab …

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    when to use PT slab-on-grade? - Concrete Post-tensioned

    This construction video shows the detailed methods for developing post tension slab. Post-tensioning is just a process of developing pre-stressed concrete, masonry, and other structural elements. Prior to pour a post-tension slab, steel strands or cables known as tendons with superior strength, are ...

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    Shrinkage Crack Considerations for Post-Tensioned

    Steel Rebar vs. Post Tension Cables ... Reinforcement with Post Tension Cables. In the case of a post tension slab, steel cables are laid out in grid fashion inside the forms. ... In fact, the tensioning (tightening) process can actually weaken the concrete if a cable is …

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    What is a post tension slab? How to tell if a home has a

    Dr. Bijan O. Aalami, Editor For Professionals Engaged in Post-Tensioning Design Issue 6 • August 1995 Cracking in Ground-Supported Post-Tensioned Slabs on Expansive Soils

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    Cast in Place Concrete vs Post Tension Slab – Construction

    these conditions is a post-tensioned slab, which uses a grid of high-tensile ... during the tensioning process. This pre-compression lets the foundation behave like a prestressed concrete beam ... grade-beam foundation (see “Trouble-

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    Finding tension cable in foundation | Fine Homebuilding

    conventional vs post tension slabs? - What is the general opinion? ... I had a buddy just have two cables snap within his slab and rocket out projectiles in his yard. Both put hefty dents into his fence 20+ feet away. ... I have done several multi level cast in place projects and had great luck with post tension construction. Never on grade ...

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    Post-Tensioned Slab-on-Grade: The Solution for Soil

    Shorter curing time - the curing time of VSL’s post-tensioned slab on grade is very short compared with any other type of slab. This leads to a shorter overall construction programme, which also helps reduce financing costs.

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    Post Tensioned Slab on Grade | JWK Consulting

    TENNIS COURT POST-TENSION CONCRETE SLAB DO’S & DON’TS. THE DO’S AND DON’TS ... 24. Should we have deepen footings or concrete grade beams for the tennis court pt slabs? 25. What thickness of expansion joint should we place between the tennis court pt slab and walls? ... CASE STUDY OF RESTRAINED POST TENSION CABLE TENNIS COURT CONCRETE ...

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    US20030233798A1 - Post-tensioned, below-grade concrete

    CCL Post-Tensioned Slabs can bring unique freedom . over conventional building methods. Stronger, more ... high-tensile steel tendons/cables in the element before casting. When the concrete reaches the desired strength, ... CCL Post-Tensioned Slab systems can be integrated into any type of slab, including flat, ribbed or waffle slabs, which may ...

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    Post Tension - Design and Build

    Feb 19, 2008· Post-tensioned slabs on grade are usually used in industrial structures with the primary objective of eliminating most of the joints. There would be nothing wrong with using post-tensioned slabs on grade in houses, but the cost would be greater.

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    Shrinkage Crack Considerations for Post-Tensioned Foundations June 1, 2015 Shrinkage cracks in concrete slab-on-ground foundations are a significant public relations problem to home builders. All concrete will shrink during the curing process which lasts …

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    A post tension slab is a concrete slab or foundation that contains high tension cables running through the concrete to increase strength and reduce cracking typically in areas with poor soil conditions. Usually a sign in the garage or stamp in the slab will indicate if your home has a post tension slab.

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    BBRIDGE DESIGN PRACTICE FEBRUARY 2015 Chapter 7 - Post-Tensioning Concrete Girders 7-i CHAPTER 7 POST-TENSIONED CONCRETE GIRDERS TABLE OF CONTENTS

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    The two options are a cast in place concrete slab or a post tensioned slab. Generally speaking the perception is that a post tensioned sport court is more expensive ... Cast in Place Concrete vs Post Tension Slab – Construction Cost. by Sean O'Hara on January 6, 2017. ... Post Tensioned Slab on Grade Sport Courts

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    Aug 19, 2002· (Austin varies quite a bit in soil, so many homes are just slab on grade... others require the post tension cable... typically you can not see the cable locations once the foundation is smoothed out -- covered with a pretty layer of mortar).

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    Post-Tensioned Slab-on-Grade: The Solution for Soil Stability Challenges Soil stability must be a consideration in the design and construction of any type of structure, irrespective of …

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    4a) Post Tension Slab shown curing after the slab pour wih cables waiting to be stretched to engineers specifications 4-7 days after a post tension slab is poured and before it is totally cured, the contractor comes and tightens the strands/cable to within 7% of the engineers designed strength of between around 27,000 and 35,000 psi.

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    A below grade, post-tensioned concrete foundation system for use in the construction of residential dwellings and other structures is described. The foundation includes a post-tensioned concrete floor slab formed on the soil base of a below grade excavation. Concrete foundation walls are formed on the perimeter of the post-tensioned floor slab.

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    Post Tension concrete can be used in different type of structure which is not limited to: Slab on Grade for factories and airborne storage and maintenance structures. Beams and Solid Slabs.

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