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Pmr Builder in Adyar

Description

Pmr Builder designs post-tensioned slabs in Adyar high-rises using 15.2mm strands, 1860 MPa, and anchorages. We stress to 75% UTS, grout ducts. Our slabs span 10m. See our PT mall on https://www.facebook.com/profile.php?id=100057095545245.

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Frequently Asked Questions

We place ducts in slab, pour concrete, stress strands to 140 kN each after 28 days—compresses concrete, allows 10m span vs 5m RCC.

Mono-strand coated with grease, HDPE sheath—strand slides freely, easy to replace, used in transfer beams.

Cast-in dead end barrel, live end with 3-piece wedge, lock after stressing—holds 186 kN permanently, no slip.

500 kN mono-jack with 600mm stroke, digital gauge, stresses 4 strands simultaneously—elongation within 5% of calculated.

Cement grout with expander, 0.35 w/c, pumped from one end—protects strand from corrosion, bonds to concrete.

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