ASTM C985 is the standard specification for nonreinforced concrete specified strength culvert, storm drain, and sewer pipe. It provides a technical basis for evaluating pipe intended for gravity drainage and utility service where concrete strength is an important performance consideration. By defining a common specification framework, ASTM C985 helps buyers, engineers, and manufacturers communicate requirements clearly and support consistent product selection, quality control, and compliance across projects.

Purpose of ASTM C985

The purpose of this ASTM standard is to establish requirements for nonreinforced concrete pipe made to a specified strength for culvert, storm drain, and sewer applications. It serves as a product specification that can be used when comparing materials, reviewing submittals, or confirming that pipe meets the expected strength-related criteria. In practice, ASTM C985 helps align manufacturing and procurement around a common technical reference for concrete pipe used in underground conveyance systems.

Common use cases of ASTM C985

ASTM C985 is commonly used when specifying or purchasing nonreinforced concrete pipe for culverts, storm drainage networks, and sewer systems. It may be referenced by engineers, contractors, testing laboratories, and public agencies during project planning and acceptance review. The standard is most relevant where pipe performance, specified strength, and product consistency need to be documented for drainage or sanitary infrastructure applications.

Why ASTM C985 matters

This standard matters because it helps create a consistent basis for product evaluation and specification writing. Using ASTM C985 can support compliance review, reduce ambiguity in procurement, and improve quality control for concrete pipe supplied to infrastructure projects. It also helps stakeholders compare products against a recognized ASTM standard rather than relying on informal descriptions, which can lower the risk of mismatch between design intent and delivered materials.

• Nonreinforced concrete pipe specification
• Specified strength requirements
• Culvert, storm drain, and sewer applications
• Procurement and compliance reference