Title:
Products & Practice Spotlight: Post Tension Plugs
Author(s):
Publication:
Concrete International
Volume:
38
Issue:
12
Appears on pages(s):
52-53
Keywords:
corrosion, grout, former, reamer
DOI:
10.14359/51689525
Date:
12/1/2016
Abstract:
Post Tension (PT) Plugs provide a new, efficient means for sealing anchor pockets. These precast units are made from nonshrink grout (8500 psi [59 MPa] compressive strength at 28 days) and are available to fit voids left by most common pocket formers. In tests conducted by an independent laboratory, PT Plugs have been shown to provide superior performance relative to conventional grout plugs.
Related References:
1. Joint ACI-ASCE Committee 423, “Specification for Unbonded Single-Strand Tendon Materials (ACI 423.7-14),” American Concrete Institute, Farmington Hills, MI, 2014, 8 pp.
2. Kelley, G.S., “Specifications for Unbonded Post-Tensioning Tendons,” Concrete International, V. 38, No. 10, Oct. 2016, pp. 35-39.
3. ACI Committee 301, “Specifications for Structural Concrete (ACI 301-16),” American Concrete Institute, Farmington Hills, MI, 2016, 64 pp.
4. ASTM C881/C881M, “Standard Specification for Epoxy-Resin-Base Bonding Systems for Concrete,” ASTM International, West Conshohocken, PA, 2015, 6 pp.