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Precast-prestress-concrete Manufacturers & Precast-prestress-concrete Suppliers Directory - Find a Precast-prestress-concrete Manufacturer and Supplier. ... Post Tension Wedge Anchorage Precast Concrete Building Materials. Certificate: CE&ISO. Place of Origin: Henan,China ... Standard: ISO. Place of Origin: Guangxi,China ...

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ANCHOR BOLTS AND ATTACHMENT HARDWARE General Description P10.1 ... P10.2.3 Selection Information P10.3 KCAB Wedge Type Anchor Selection Guide P10.3.1 KUAB Undercut type Anchor Selection Guide P10.3.2 Installation Instructions P10.4 ... Anchor Size vs. Tightening Torque for Standard Weight Concrete. Undercut Anchor Model Anchor Size mm (in ...

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Jan 15, 2013· Prestressed concrete is a form of concrete used in construction which is "pre-stressed" by being placed under compression prior to supporting any loads beyond its own dead weight. This compression is produced by the tensioning of high-strength "tendons" located within or adjacent to the concrete volume, and is done to improve the performance of the concrete in service.

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One supplements the standards concrete specification, and the other supplements the standard prestressed concrete specifications. SALEM TO MANCHESTER 13933C. June 6, 2007. ... 3.1.7.4 Post-Tensioning Anchorages: ... Wedge-type anchors shall not be used in inaccessible locations. Anchorages shall be supplied with a steel reinforcing spiral for ...

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Stacking of precast prestressed concrete units Post-te nsioning Post-tensioning is. The Precast Flooring Federation has produced a publication to help improve safety and prevent accidents on sites. the cost of providing anchorages.

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A Simple Method of Gripping Prestressing Strands for Tension Tests Presents a simple technique for gripping a prestressing strand to measure its breaking strength, modulus of elasticity or stress-strain ... Aluminum angles grip and cushion the strand in machines that use tapered mechanical or wedge grips. 3. ... "Tests of Prestressed Concrete ...

US20100071528A1 - Device for stripping sheathing on

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Alternatively, the modified wedge developer has determined experimentally that allowing the wedge pieces to come into contact, with reasonable limitation, is actually beneficial to the operation of the anchor system overall.

US8443520B2 - Device for stripping sheathing on unbonded post-tensioning tendons - Google Patents

US20100071528A1 - Device for stripping sheathing on unbonded post-tensioning tendons - Google Patents

This prestressed structural precast concrete fabrication inspection procedure should be used to aid the quality assurance inspector (QAI) in interpreting and enforcing the contract documents for prestressed concrete elements.

With the available material data for the PPS-wedge material obtained from Kundert , our own compressive and tensile tests according to standard EN ISO 527-4 , and the CFRP tendon data from Table 1 and deduced from Meier , the material properties in Table 3 were derived for the FE calculations.