T/SDGSY 22-2025 Active Group standards

T/SDGSY 22-2025 Basalt fiber-reinforced polymer bar prestressed concrete cylinder pipe

Publish Date: 2025-12-31 Implement Date: 2026-01-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/SDGSY 22-2025

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Medical devices

ICS Name: Concrete and concrete products

Publish Date: 2025-12-31

Implement Date: 2026-01-01

Scope

Scope This document specifies the classification, general requirements, design and manufacturing, technical requirements, test methods, inspection rules, and marking, as well as transportation and storage of basalt fiber-reinforced polymer bar prestressed concrete cylinder pipes. This document is applicable to pipes used in water supply and drainage, industrial water transportation, farmland irrigation, factory pipe networks, power plant supplementary water and cooling water circulation systems, and urban comprehensive pipe galleries, among others. Basalt fiber-reinforced polymer bar A rod-shaped fiber-reinforced composite material product made by continuous basalt fiber bundles through pultrusion molding and cured with matching resin. It is referred to as basalt fiber-reinforced polymer bar. 3.1.2 Basalt fiber-reinforced polymer bar prestressed concrete cylinder pipe A pipe composed of a steel cylinder and concrete layers on both sides of the steel cylinder. A prestressed basalt fiber-reinforced polymer bar is wrapped around the outer side of the concrete layer of the steel cylinder and covered with a cement mortar protective layer. It is referred to as BFB-PCCP, as shown in Figure 1. T/SDGSY 22-20254 Figure 1 Schematic diagram of BFB-PCCP structure 3.1.3 Working pressure The maximum internal water pressure generated by hydraulic gradient within a certain section of the pipeline or a pipe, excluding water hammer pressure. 3.1.4 Soil cover depth The vertical distance between the top of the buried pipeline and the ground surface. 3.2 Symbols The following symbols are applicable to this document. D0 —— Nominal inner diameter, in millimeters (mm). Dy —— Outer diameter of the steel cylinder, in millimeters (mm). tc —— Thickness of the pipe core (including the thickness of the steel cylinder), in millimeters (mm). tc, min —— Minimum thickness of the pipe core (including the thickness of the steel cylinder), in millimeters (mm). t