GB/T 18173.3-2014Polymer water-proof materials—Part 3: Hydrophilic expasion rubber (English PDF)

Foreword

GB/T 18173 Polymer water-proof materials is divided into the following 4 parts.

- Part 1: Water-proof sheet;

- Part 2: Waterstop;

- Part 3: Hydrophilic expansion rubber;

- Part 4: Rubber gasket for shield-driven tunnel.

This Part is Part 3 of GB/T 18173.

This Part was drafted in accordance with the rules given in GB/T 1.1-2009.

This Part replaces GB/T 18173.3-2002 Polymer water-proof materials - Part 3:

Hydrophilic expansion rubber. Compared with GB/T 18173.3-2002, the major technical changes are as follows.

- MODIFY the definition of the volume expansion ratio (SEE Section 3.1 of this Part, Section 3.1 of 2002 edition).

- MODIFY the classification of the product-type hydrophilic expansion rubber in accordance with the volume expansion ratio (SEE Section 4.1.2 of this Part, Section 3.2.2 of 2002 edition).

- ADD the product classification in accordance with the cross-sectional shape (SEE Section 4.1.3 of this Part).

- MODIFY the product marking method. DELETE the marking method of composite expansion rubber (SEE Section 4.2.1 of this Part, Section 3.3.1 of 2002 edition).

- MODIFY the schematic diagram for the section structure of hydrophilic expansion rubber, and the dimensional tolerances of the product-type hydrophilic expansion rubber (SEE Section 5.1 of this Part, Section 4.1 of 2002 edition).

- MODIFY the requirements for the appearance quality of the product-type hydrophilic expansion rubber (SEE Section 5.2 of this Part, Section 4.2 of 2002 edition).

- ADJUST the physical property indicators of the product-type hydrophilic expansion rubber compound (SEE Section 5.3 of this Part, Section 4.3 of 2002 edition).

- MODIFY the method for measuring the dimensional tolerances (SEE Section 6.1 of this Part, Section 6.1 of 2002 edition).

- MODIFY the group-batching and sampling of hydrophilic expansion rubber (SEE Section 7.1.1.1 of this Part, Section 6.1.1.1 of 2002 edition).

- MODIFY the determination rules of hydrophilic expansion rubber (SEE Section 7.2 of this Part, Section 6.2 of 2002 edition).

- ADD the storage temperature of hydrophilic expansion rubber (SEE Section 8.3 of this Part).

- ADJUST the storage time of hydrophilic expansion rubber (SEE Section 8.4 of this Part, Section 7.4 of 2002 edition).

- MODIFY the calculation formula for the test method II of the volume expansion ratio (SEE Annex B of this Part, Annex B of 2002 edition).

1 Scope

This Part of GB/T 18173 specifies the terms and definitions, classification and product markings, requirements, test methods, inspection rules, symbols, packaging, transportation and storage for the hydrophilic expansion rubber of polymer water-proof materials.

This Part is applicable to the hydrophilic expansion water-proof rubber made of absorbent materials, such as water-soluble polyurethane prepolymer, sodium acrylate polymer absorbent resin, etc., and natural or chloroprene rubber. This kind of rubber is mainly applied to the seams and water-proof sealing of the underground and foundation works, such as tunnels, pipe jacking, civil air defense, etc., and the water-proof sealing of the industrial equipment, such as vessels, locomotives, etc.

2 Normative references

The following documents are essential to the application of this document. For dated references, only the editions with the dates indicated are applicable to this document. For undated references, only the latest editions (including all the amendments) are applicable to this document.

GB/T 528 Rubber, vulcanized or thermoplastic - Determination of tensile stress-strain properties

GB/T 531.1 Rubber, vulcanized or thermoplastic - Determination of indentation hardness - Part 1: Duromerer method (Shore hardness)

GB/T 2941 Rubber - General procedures for preparing and conditioning test pieces for physical test methods

3 Term and definition

The following term and definition are applicable to this document.

4 Classification and product markings

5 Requirements

6 Test methods

7 Inspection rules

8 Symbols, packaging, transportation and storage

8.1 USE plastic bags for sealed packaging of hydrophilic expansion rubber. USE woven bags or cartons for packaging afterwards.

8.2 Each packaging shall have a product certificate, and shall be indicated with product name, product marking, trademark, manufacturing plant's name and address, production date, etc. […]