 |
 |
 |
 |
 |
 |
 |
 |
 |
Tensioned Concrete regularly provides design and technical services to consultants, architects, builders and developers from value engineering, providing post-tensioning component dimensions or samples of materials used.
Tensioned Concrete can help you with an overall understanding of post-tensioning and its varied applications. Please contact us for more information.
What is post tensioning?
Post-Tensioned concrete is a method of applying compression after pouring concrete. Galvanised duct which is anchored at both ends is profiled by using bar chairs to follow the area where otherwise tension would occur in the concrete element. Steel strand (12.7mm typically) is pushed through the duct (known as tendons) and the concrete is poured. Once the concrete has achieved required strength, the tendons are stressed by hydraulic jacks. When the tendons have extended sufficiently, according to the design specifications, they are wedged in position and maintain tension after the jacks are removed. The duct is then grouted to provide corrosion protection and bond between the pre-stressing steel and concrete members.
Some benefits include:
- Larger Spans
- Leaner Columns, beams and slabs
- Simplified Formwork
- Reduction in conventional Reinforcement
- Quicker construction cycles