The Post-Tensioning Institute (PTI) is a non-profit organization for the advancement of post-tensioned, prestressed concrete

Prestressed concrete

Prestressed concrete is a method for overcoming concrete's natural weakness in tension. It can be used to produce beams, floors or bridges with a longer span than is practical with ordinary reinforced concrete...

 design and construction. The Post-Tensioning Institute provides a variety of resources online for architects and engineers.

History

PTI was founded in 1976. Members of the Institute include major post-tensioning materials fabricators, manufacturers of prestressing materials and companies supplying materials, services and equipment used in post-tensioned construction. Additionally, members include professional engineers, architects and contractors.

Field Certification Program

• Level 1 - Fundamentals of Unbonded Post-Tensioning
• Level 2 - Inspector
• Level 2 - Superstructure Ironworker
• Level 1 - Field for Bonded Post-Tensioning
• Level 2 - Field for Bonded Post-Tensioning

Plant Certification Program

• Plants Producing Unbonded Single Strand Tendons
• Plants Producing Prestressed Concrete (PC) Strand

Technical Committees

The Technical Advisory Board reviews and oversees all technical activities of the Institute.

• Barrier Cable
  Barrier cable
  Barrier cable is a vehicular or pedestrian restraint system used in parking garages. It installed along the ramps or around the perimeter of the parking structure. It consists of a 0.5-inch, 7-wire steel strand which is similar to the strand used in Post-tensioned concrete.-Galvanized:Galvanized...
  
  
• Bonded Tendon
• Bridges
  Bridge
  A bridge is a structure built to span physical obstacles such as a body of water, valley, or road, for the purpose of providing passage over the obstacle...
  
  
• Building Design
• Cable-Stayed Bridges
  Cable-stayed bridge
  A cable-stayed bridge is a bridge that consists of one or more columns , with cables supporting the bridge deck....
  
  
• Certification
• Education
• Grouting
• Rock & Soil Anchors
• Repair, Rehabilitation and Strengthening
• Slab-on-Ground
• Special Topics
• Unbonded Tendon

Allied Groups

• American Concrete Institute
  American Concrete Institute
  The American Concrete Institute is a non-profit technical society and standard developing organization . ACI was founded in 1904 and its headquarters are currently located in Farmington Hills, Michigan, USA.- ACI History :1904-1929:...
  
   (ACI)
• American Metal Market
  American Metal Market
  American Metal Market is an online provider of industry news and metal pricing information for the U.S. steel, nonferrous and scrap markets. Products include a daily publication available in an electronic pdf, live news on the publication's , a hard-copy magazine and a series of weekly newsletters...
  
   (AMM)
• American Segmental Bridge Institute (ASBI)
• National Concrete Bridge Council (NCBC)
• Post-Tensioning Association of the U.K. (PTA)
• Post-Tensioning Institute of Australia (PTIA)
• South African Post-Tensioning Association (SAPTA)

Certified Suppliers of Unbonded Post-Tensioning (incomplete list)

• Amsysco Inc.
  Amsysco Inc.
  AMSYSCO, Inc. is a Post-Tensioning supplier based in Romeoville, Illinois. AMSYSCO, Inc. has an unbonded plant that it is certified under the Post-Tensioning Institute 'Plant Certification' program.-Business Segments:*1. Arts & Sports Stadiums...
  
  
• CCL USA, Inc.
• DYWIDAG Systems International
  DYWIDAG Systems International
  DYWIDAG-Systems International is a globally operating technology group that has its focus on the Construction and Underground markets.DSI was founded in 1979 as a Dyckerhoff & Widmann AG subsidiary to market licences for DYWIDAG-Products and Systems around the world.At the beginning, DSI’s focus...
  
  
• FREYSSINET
• PTE Strand Company, Inc
• Post Tension of Nevada, Inc.
• Ready Cable, Inc.
• Suncoast Post-Tension, Ltd.
• VSL
• e-solution construction&engineering

External links

• Post-Tensioning Institute
• PTI's Legends of Post-Tensioning, Concrete Construction News.
• Post-Tensioned Concrete Cement.org
• Learning More about PT Concrete Network