Standard of concrete weight coated pipe

Concrete weight coated pipes are critical components in various pipeline systems, particularly in offshore and underwater applications. To ensure their quality and performance, several industry standards govern their specifications, testing, and materials. Below are the key standards relevant to concrete weight coated pipes.

DNV-OS-F101:

This standard addresses submarine pipeline systems and specifies requirements for various steel grades, including SAWL 245, SAWL 290, SAWL 320, SAWL 360, SAWL 415, SAWL 450, SAWL 485, and SAWL 555. It focuses on aspects such as material selection, construction, and operational integrity.

ISO 21809-5:2010:

This standard pertains to the external coatings for buried or submerged pipelines used in pipeline transportation systems. Part 5 specifically addresses external concrete coatings, outlining requirements for their application and performance to enhance the durability of pipelines in harsh environments.

ASTM C42:

This standard outlines the test methods for obtaining and testing drilled cores and sawed beams of concrete, which are essential for assessing the structural integrity of the concrete coating.

ASTM C87:

This standard provides test methods to evaluate the effect of impurities in fine aggregate on the strength of mortar, which is crucial for ensuring the quality of concrete mixtures used in coatings.

ASTM C642:

This standard addresses the specific gravity, absorption, and voids in hardened concrete, which are important parameters for determining the durability and performance of the concrete coating.

BS 3148:

This standard specifies methods for testing water quality for making concrete, ensuring that the materials used do not adversely affect the concrete's performance.

BS 4449:

This material specification details the requirements for carbon steel bars used for concrete reinforcement, ensuring the strength and reliability of the reinforced structure.

BS 4482:

This specification covers hard-drawn mild steel wire for the reinforcement of concrete, providing guidelines for the material's properties and performance.

BS 4483:

This standard outlines the specifications for steel fabric used in concrete reinforcement, which is essential for maintaining the structural integrity of concrete coatings.

These standards collectively ensure that concrete weight coated pipes meet the necessary performance criteria, providing safety and reliability in their intended applications.