Overview
DuraStor™ Tanks are prestressed concrete storage tanks reinforced with VSL unbonded and bonded post-tensioning tendons, compliant with AWWA D115 and ACI 350 standards. High- strength steel tendons compress the tank’s floor, walls, and roof, enhancing watertightness and ensuring long-term durability with minimal maintenance.
Whether driven by process requirements or specific shapes, DuraStor™ Tanks are engineered and built into any shape or size. Compared to other tank alternatives, DuraStor™ Tanks can be engineered and
constructed in any configuration.
Reinforced with VSL Post-Tensioning Products
DuraStor™ Tanks are reinforced with VSL post-tensioning systems – which have been used as the industry standard for post-tensioning throughout the world. To offer the most durable tank solution on the market, DuraStor™ Tanks are constructed with unbonded post-tensioning in the floors and roofs, while tank walls are constructed with both unbonded and bonded post-tensioning systems.
Unbonded Monostrand Post-Tensioning Systems
A variety of anchorages and corrosion protection features for both 0.5” and 0.6” strands allowing great flexibility in meeting design and durability requirements.
Bonded Multistrand Post-Tensioning Systems
A variety of anchorages that can be designed to hold up to 55 strands in duct, and encased in grout to provide optimum corrosion protection.
STRUCTURAL TECHNOLOGIES is the exclusive manufacturer of VSL post-tensioning products and construction systems in the United States. Our manufacturing facilities in the United States are certified by PTI’s Plant Certification Program to ensure the highest quality fabrication of materials.
DuraStor™ Tank Advantages
Durable
Utilize post-tensioned reinforcement, which eliminates joints in floors and roof slabs and provides crack-free concrete throughout the structure.
Watertight
Have been constructed and found to have no measurable leakage when tested for watertightness.
Versatile
Can be designed into any shape, giving designers total flexibility to utilize them for a variety of water/wastewater applications and to maximize available space.
Aesthetic
Can be finished with a variety of coatings, colorings and textures to enhance their appearance or to blend into its surroundings.
Expedited Schedule
Construction methods allow for larger concrete placements, completion of simultaneous tasks, utilize readily available equipment and can be built in all weather conditions.
Economical
Have resulted in up to 25% cost savings compared to conventionally reinforced tanks by reducing materials, labor, construction schedule and ongoing maintenance. They are also cost competitive with D110 prestressed tanks.
Accessible
May be built with as little as 3′ of exterior access – allowing designers to maximize site useage and tank volume.
Modifiable
The spacing of post-tensioning tendons allows for modifications and openings to be made pre or post construction.
Post-Tensioning Engineering Support
STRUCTURAL TECHNOLOGIES’ post-tensioning specialists are committed to bringing innovation to complex projects. Our in-house design professionals have extensive experience in structural design and are active members of technical organizations such as the Post Tensioning Institute (PTI) and the American Concrete Institute (ACI).
Planning
Design
Construction
Featured Projects
Nappanee Long Term Control Improvements Project
City of Provo West Side Tanks #1 & #2
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