From material question to coordinated structure.

From the material itself. The cured polymer matrix extends throughout the structural section. It is not a lining or coating applied over corrosion-susceptible Portland cement concrete.

Name the material and the test basis: styrene-free vinyl ester binder, noncalcareous aggregate, steel reinforcement, at least 10,000 psi at 7 days by ASTM C579 Method C, no more than 0.20% water absorption by ASTM C413 Method C, and the 112-day chemical-resistance program in ASTM C267 and ACI 548.17.

The applicable combination of dead, earth, groundwater, traffic, handling, installation, internal-liquid and buoyancy loads. Project criteria are established by the project engineer and carried into the product-specific calculations and submittal.

Coordinate them to the actual geometry and pipe outside diameter. Specify qualified joints under ASTM C443 or C990 and pipe connections under ASTM C923, or a qualified polymer-mortar connection where the project permits it.

P3's standard written warranty begins at installation and covers defects, corrosion, decomposition or disintegration of the polymer concrete components for 50 years. Repair or replacement is subject to the written warranty terms; third-party boots and connectors are excluded.

The complete system, not one headline property. Compare constituents, reinforcement, geometry, qualification methods, structural documentation, quality control, traceability, interfaces and warranty on the same basis.