Post-Tensioned Concrete Tennis Courts
Post-tensioned concrete is the preferred method for new tennis court construction and rebuilding of old tennis courts. Renner Sports Surfaces has over 27 years experience in the design and construction of post-tensioned concrete tennis courts, utilizing installers trained and certified by the Post-Tensioning Institute.
Post-tension concrete construction provides the best long term value for the following reasons:
- Ability to span unstable soils
- Increased resistance to settling and/or heaving
- Elimination of cold joints around net posts and fence posts
- Better uniformity of play
- More controlled slope for drainage
- Stable, attractive concrete edge
- Lower maintenance costs. This is important if future access is limited by landscaping, structures, etc.
- Eliminates the potential liability from structural cracking
- Ability to construct over existing courts, thereby saving valuable resources associated with demolition and disposal
The Post-Tensioned Concrete Tennis Court Construction Process
1. Laser Grading
After rough grading, the fine grade is achieved with the use of a laser controlled machine to create a true plane with tolerances to ± 3/8”. A perimeter beam is then excavated for the cable anchors.
2. Cable Placement
Forms are set to grade using laser technology to assure uniform planarity throughout. The post-tensioning tendons are placed in both directions, with spacing determined by slab length and soil conditions.
4. Concrete Finishing
Using equipment specifically designed for working large areas of concrete, the slab is finished in multiple directions, assuring planarity and texture across the entire court complex.
6. Tendon Stressing
Once the concrete has achieved a specific compressive strength, the tendons are hydraulically tensioned to 33,000 p.s.i. and anchored at 28,900 p.s.i. Following final stressing, cable ends are cut off 3/4” inside the edge of slab and the pocket is grouted to prevent rusting of the tendons.
Standard surfacing consists of multiple coats of acrylic color applied to the prepared concrete. For resilience, a variety of cushioned surfaces are available.