Post-Applied Coatings, Pavings, and Linings for Corrugated Steel Sewer and Drainage Pipe

A849-15: Standard Specification for Post-Applied Coatings, Pavings, and Linings for Corrugated Steel Sewer and Drainage Pipe

When specifying infrastructure projects involving corrugated steel pipes, ensuring the longevity and performance of these critical components is paramount. ASTM A849-15 provides the industry-leading framework for selecting and applying protective post-applied coatings, pavings, and linings, offering engineers and designers an essential guide to enhance durability and functionality. This comprehensive standard ensures that these protective layers meet stringent performance requirements, safeguarding vital water and wastewater systems from environmental degradation and operational wear.

What is A849-15?

ASTM A849-15, "Standard Specification for Post-Applied Coatings, Pavings, and Linings for Corrugated Steel Sewer and Drainage Pipe," establishes the requirements for various protective materials applied after the fabrication of corrugated steel pipes. Developed by ASTM International, this authoritative standard aims to ensure the consistent application and performance of these protective layers, thereby extending the service life of sewer and drainage infrastructure.

Scope & Purpose

This standard governs the application of a range of materials, including asphalt, polymerized asphalt, polymers, mastics, and emulsions, as coatings. It also covers asphalt and concrete pavements and linings. The scope includes materials applied both in the manufacturing plant and, for specific asphalt and mastic coatings, in the field. Notably, it excludes field-applied concrete pavements and linings, which are addressed by a separate ASTM standard, and does not dictate specific cleaning operations, though it emphasizes their importance for substrate preparation.

Who Must Comply?

• • Primary audience: Materials Engineers, Civil Engineers, Project Managers, Quality Control Inspectors, and Product Development Engineers involved in the design, specification, and construction of water and wastewater systems.
• • Industries affected: Civil Engineering, Construction, Infrastructure Development, Manufacturing (pipe fabrication), and Water and Wastewater Management.
• • Compliance nature: Typically voluntary, but often mandated through project specifications and contractual agreements.
• • Enforcement: Compliance is generally verified by project owners, consulting engineers, and quality assurance personnel during design review, material procurement, and construction oversight.

Key Requirements Overview

The standard requires that specified materials, such as asphalt, polymers, and concrete, be applied in accordance with defined classifications based on material type and application location (e.g., full coating, invert paving). Professionals must ensure that the chosen coating, paving, or lining is compatible with the base corrugated steel pipe material and the intended service environment. Key provisions include adherence to requirements for material properties, application thickness, and performance characteristics designed to resist corrosion and abrasion. The standard also references proven test methods for evaluating material quality and performance.

Related Standards & References

ASTM A849-15 works in conjunction with several other ASTM standards. For the base corrugated steel pipe, Specification A760/A760M (Metallic-Coated for Sewers and Drains) and Specification A762/A762M (Polymer Precoated for Sewers and Drains) are fundamental. For field-applied concrete, Specification A979/A979M is referenced. These standards collectively provide a comprehensive approach to specifying and ensuring the performance of corrugated steel drainage infrastructure.