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GB/T 41666.4-2024Plastics piping systems for renovation of underground non-pressure drainage and sewerage networks - Part 4: Lining with cured-in-place pipes (English PDF)

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

March 15, 2024

Implementation date

October 1, 2024

Scope

GB/T 41666.4-2024 (Plastics piping systems for renovation of underground non-pressure drainage and sewerage networks - Part 4: Lining with cured-in-place pipes) is available as an English-translated PDF.

GB/T 41666.4-2024 — This document specifies the following procedures for trenchless repair of underground non-pressure drainage networks with working temperatures not exceeding 50°C using the in-situ cured lining method.

The requirements for plastic piping systems used in the production phase ("M" phase) of lined hoses and the construction phase ("I" phase) after curing of the lined pipes are described.

The corresponding test methods specify the contents of construction and acceptance. This document applies to all thermosetting resin systems, carrier materials, reinforcement materials, process-related plastics and other materials used in the cured-in-place lining process. Material film and installed cured liner pipe system.

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Document preview — GB/T 41666.4-2024

National Standard of the People's Republic of China

ICS: 83.140.30
Classification: G 33

Issued by: State Administration for Market Regulation, China National Standardization Administration

Preface
Introduction
1 Scope
2 Normative references
3 Terms and Definitions
4 Symbols and abbreviations
4.1 Symbols
4.2 Abbreviations
5 Lined Hose Requirements at the Production Stage ("M" Stage)
5.1 General requirements
5.2 Resin systems for hose linings
5.3 Carrier and reinforcement materials
5.4 Inner and outer membranes of lined hoses
5.5 Dry hose
5.6 Wet hose
5.7 Signs
6 Construction phase ("I" phase) lining pipe requirements
6.1 Materials
6.2 General requirements
6.3 Geometric dimensions
6.4 Mechanical properties
6.5 Other performance
6.6 Compactness requirements
6.7 Sampling
7 Construction
7.1 Construction Preparation
7.2 Storage, handling and transportation of lined pipes
7.3 Construction equipment
7.4 Liner pipe installation
7.5 Process-related inspections and tests
7.6 Liner pipe end treatment
7.7 Connection to inspection well
7.8 Completion Inspection
8 Acceptance
8.1 General Provisions
8.2 Lining pipe construction quality inspection
8.3 Pipeline functional test
8.4 Archive files
Appendix A (Informative) Comparison of this document with ISO 11296-4:2018 structure
Appendix B (Informative) Technical differences between this document and ISO 11296-4:2018 and their causes
Appendix C (Informative) CIPP components and their functions
Appendix D (Normative) Determination of high temperature retention rate of inner and outer membrane strength
Appendix E (Normative) In-situ cured lining method---Determination of short-term flexural properties
Appendix F (Normative) In-situ curing lining method---Determination of long-term flexural modulus under dry and wet conditions
Appendix G (Normative) In-situ curing lining method---Determination of long-term flexural strength under dry, wet or acidic conditions
Appendix H (Normative) Determination of pipe wall compactness
Appendix I (Normative) Test Items and Methods

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

This document is Part 4 of GB/T 41666 "Plastic Piping Systems for Trenchless Repair of Underground Non-pressure Drainage Networks".

The following parts have been published.

--- Part 3: Tight fitting lining method;

--- Part 4: In-situ cured lining method.

This document is modified to adopt ISO 11296-4:2018 "Plastic piping systems for trenchless repair of underground non-pressure drainage networks Part 4: Original in-place curing lining method.

Compared with ISO 11296-4:2018, this document has many structural adjustments. Here is a comparison of the structural number changes between the two documents.

See Appendix A for the table.

This document has many technical differences compared to ISO 11296-4:2018.

A list of these technical differences and their reasons is given in Appendix B.

Introduction

In order to standardize the application of plastic pipe systems in trenchless repair work in different application fields, SAC/TC48 prepared GB/T 37862 Based on the General Principles of Plastic Pipes for Trenchless Repair, it is planned to gradually establish a standard system for plastic pipe systems for pipeline repair.

see picture 1.

Figure 1 Framework of the trenchless repair standard system

GB/T 41666 "Plastic Pipe Systems for Trenchless Repair of Underground Non-pressure Drainage Networks" is intended to define the requirements for trenchless repair of underground non-pressure drainage pipelines.

The working criteria and technical requirements for applicable materials of various repair technologies during the production, construction and acceptance stages are intended to be composed of the following parts.

--- Part 1: General. The purpose is to establish the requirements for plastic pipe systems used for trenchless repair of underground non-pressure drainage networks.

General requirements, overarching principles and relevant rules to be followed.

--- Part 2: Continuous interlaced lining method. The purpose is to clarify the applicable materials of the continuous interlaced lining method in production, manufacturing and construction inspection.