Precision structural calculations and detailing for Texas construction projects. Built to ACI and PTI standards.
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Reliable diagnostics and curative engineering solutions for compromised concrete structures.
Contact an ExpertTension One LLC provides freelance engineering services tailored to post-tension slab projects. From initial plan preparation to third-party structural audits, your project rests on calculations that have been checked line by line.
Long-form references that cover a subject end to end, updated as the standards move
Complete guide
How a post tension slab works, why it outperforms conventional reinforced concrete, which design parameters govern it, and what decides its service life, from field experience in Texas and abroad.
Complete guide
Post tension slab vs reinforced concrete: six field-tested criteria, published depth benchmarks and a parking structure where we priced both systems side by side on the same grid.
Complete guide
A damaged post tension slab rarely announces itself. Learn the five warning signs we see in the field, how each is diagnosed, and what repair actually costs in Texas before you accept a quote.
Complete guide
Corrosion attacks post tension slab tendons out of sight. How it starts, a five-step inspection sequence, what drives repair cost, and the preservation steps that keep tendons dry.
Complete guide
A field checklist for post tension slab stressing and grouting: what to verify before the jack touches the anchor, how to read elongations, finish anchorages and grout bonded tendons.
High-precision structural analysis and detailed drawings for post-tensioned concrete. The method follows ACI (American Concrete Institute) and PTI (Post-Tensioning Institute) requirements while keeping material quantities under control.
I collaborated with Joseph on an advanced project involving post-tensioned slabs. His structured approach and strong command of reinforced and prestressed concrete design standards added significant value to the project.
Excellent methodology for calculating post-tensioned slabs.
Technical insights, repair techniques and field notes
Chlorides corrode post tension slab tendons out of sight. How they reach the steel, how to assess the risk on an existing slab, which repairs exist, and how to design against it.
Where anchors sit decides where a post tension slab gets its precompression. Anchorage zones, drape and balanced load, punching shear, and the layout rules we apply in the field.
Drilling into a post tension slab without locating the tendons is never safe. The force in one strand, what ACI 318-19 expects, five mistakes that cut cables, and what to do first.
Is a post tension slab more earthquake-resistant than an RC slab? How each behaves as a diaphragm and at the column, what ACI 318-19 changed, and how seismic category decides.
How to recognize a post-tension cable failure in a post tension slab: blowouts, directional cracks, sagging floors, rust and grease stains, and which signs mean stop and call an engineer now.
Cutting into a post tension slab without a plan can sever a stressed tendon. The five mistakes we see most often, and the checklist that prevents them, for owners and contractors.
Facing a complex technical problem on a post-tension slab? An independent opinion is often what settles it. You get a clear reading of the structure and a solution you can actually build.
Analysis of structural pathologies and durable curative solutions.
Calculations revised to cut material cost without touching structural safety.
Third-party audit of your calculation notes and validation of the design hypotheses.
Free Excel toolkit
Sizing, elongation checks, inspection triage and repair budgets. Sent to your inbox.