Unbonded Post-Tension System
Unbonded post-tension is a system where individual tendons are coated with grease and protected by a plastic sheath before being placed in the concrete.
Unlike bonded systems, the tendons are not grouted after stressing. They remain independent within the slab, allowing greater flexibility and faster execution.
This system is widely used in building construction for its efficiency and cost optimization.
System Characteristics
Individually greased for corrosion protection
Covered with a protective plastic sheath
Anchored at both ends
Stressed after concrete curing
The system allows the slab to perform efficiently while reducing overall structural weight.
When Should You Use Unbonded Post-Tension?
Unbonded systems are recommended when:
Typical Applications
Residential apartment buildings
Office towers
Hotels
Shopping centers
Compounds and villas
Mixed-use developments
Key Benefits
Reduced slab thickness
Fewer columns
Faster installation
Lower concrete volume
Cost-effective structural solution
Improved architectural flexibility
Why SOPREL Afrique?
SOPREL Afrique designs and supervises unbonded post-tension systems tailored to each project’s geometry, loads, and architectural objectives.
Our expertise ensures optimized tendon layouts and controlled stressing procedures for maximum performance.