BBR VT CONA CMM Single internal post-tensioning system
The European assessed CONA® CMM Single system is an advanced generation of monostrand unbonded or bonded post-tensioning and is the only one of its type on the international market today. The system has been optimized to feature lighter anchorages and offer designers the smallest available tendon center spacing and concrete edge distance for stressing at the very low concrete strength of 18/22MPa. It also includes features which accelerate installation and thus reduce material and labor costs.
CONA CMM Single S1
CONA CMM Single S2
CONA CMM Single S1 Coupler H
CONA CMM Single S2 Coupler T & Intermediate anchorage C
Key features
- Compact light-weight anchorages available in two sizes which are optimized for either 12.9 mm or 15.7 mm diameter, 1,860 MPa strand
- No anti-bursting or splitting reinforcement required at the anchorage
- Application of full post-tensioning force at very low concrete strengths (fcm,0 = 18/22 MPa)
- Advanced proprietary monolithic anchorage for very small tendon centre spacings and concrete edge distances
- Even smaller spacings are achievable when local anti-bursting reinforcement is added using an innovative support chair to centralize the reinforcement, which can be either stirrups or a helix cage
- Monolithic coupling anchorage with an integrated, preinstalled wedge
- An intermediate anchorage permits continuous strand on sequentially stressed concrete structures without using a coupling anchorage
- Superior corrosion protection ensured with a threaded transition pipe
- In unbonded applications, greased/waxed and individually HDPE sheathed monostrands are used
- In bonded applications, round corrugated galvanized steel or plastic duct are filled with high performance BBR grout
- Restressable & exchangeable tendons perfectly suited for long-term inspection and maintenance
- European Technical Assessment and CE marking
CONA CMM assessments
Download the latest CONA CMM European Technical Assessment
See our Downloads page
BIM
Download CONA CMM CAD and 3D files
See our BIM page
