GB 18173.2-2014Polymer water-proof materials - Part 2: Waterstop (English PDF)

6.1.1.1 of this Part, Section 6.1.1.1 of 2000 edition);

— MODIFY the inspection items of the waterstop (SEE Section 6.1.1.2 of

this Part, Section 6.1.1.2 of 2000 edition);

— ADD the requirements for periodic inspection of the waterstop (SEE

Section 6.1.3 of this Part);

— MODIFY the determination rules of the waterstop (SEE Section 6.2 of this

Part, Section 6.2 of 2000 edition);

— ADD the requirements for the storage temperature of the waterstop (SEE

Section 7.3 of this Part).

This Part was proposed by the China Petroleum and Chemical Industry

Federation.

This Part shall be under the jurisdiction of the Technical Subcommittee for

Rubber Sundries of National Technical Committee for Standardization of

Rubber and Rubber Products (SAC/TC 35/SC 7).

Drafting organizations of this Part. Beijing Chemical Products Quality

Supervision and Inspection Station, Shanghai Suiqiao Special Rubber Factory,

Zhuzhou Times New Material Technology Co., Ltd, Hengshui Baoli Engineering

Rubber Co., Ltd, Hengshui Zhongtiejian Engineering Rubber Co., Ltd, Jiangyin

Haida Rubber and Plastic Co., Ltd, Changzhou Hua'an Building Materials Co.,

Ltd, China Railway Tunnel Survey and Design Institute Co., Ltd, Fengze

Engineering Rubber S & T Development Co., Ltd, Hengshui Guiping

Engineering Rubber and Plastic Co., Ltd, Shanghai Zijiang Rubber Products

Co., Ltd, Sino Rubber Technology Co., Ltd, Hengshui Best Gold Composite

Material Technology Co., Ltd, Hebei Hengshui Yellow River Engineering Rubber

and Plastics Co., Ltd, and Hengshui Dayu Engineering Rubber and Plastic

Technology Development Co., Ltd.

Main drafters of this Part. Song Baoqing, Ni Jun, Liu Qingting, Wang Xihui,

Gong Xiaoneng, Gong Jian, Yao Meihua, He Weiguo, Zhang Peiji, Ji Zhitian,

Yao Yutang, Liu Baoquan, Sun Huijuan, Li Shiju and Zhang Quanxin.

The previous released edition substituted by this Part is as follows.

— GB 18173.2-2000.

Polymer water-proof materials - Part 2.Waterstop

3.1 Classification

3.1.1 The waterstops can be divided into three categories according to the

applications.

3.1.2 The waterstops can be divided into two categories according to the

structure type.

3.2.2 Marking examples

Example 1.Composite waterstops with steel edges for construction joints, which are 300mm wide and

8mm thick, shall be marked as. S-FG-300 × 8.

4.1 Dimensional tolerances

The schematic diagram for the waterstop structure is shown in Figure 1.The

dimensional tolerances of the waterstop shall conform to the provisions of

Tables 1 and 2.

4.2 Appearance quality

4.2.1 The deviation of waterstop's center hole is not allowed to exceed 1/3 of

the design value of the wall thickness.

4.2.2 It is not allowed to have cracks and sponge-like defects on the waterstop

surfaces.

4.3 Physical properties

4.3.1 The physical property requirements and corresponding test methods for

the rubber materials of waterstops shall conform to the provisions of Table 3.

4.3.2 The indicator of the tensile strength at the joints of the waterstop shall

not be less than 80% of the specified value in Table 3 (except the site

construction joints).

5.1 Dimensional tolerances

USE a measuring tool to measure the specifications. The thickness and width

shall be respectively accurate to 0.05mm and 1mm. TAKE 1m of product at

random as sample (for the waterstop processed by molding vulcanization, at

least one joint shall be included). TAKE four points in the symmetrical position

on the product surface from both ends for measurement. TAKE the arithmetic

mean value of the results.

5.3 Physical properties

5.3.1 Test piece preparation and conditioning

CUT an enough length of product passing the specification and appearance

quality inspections as required by the test. CONDUCT the test piece

preparation according to the provisions of GB/T 2941.PLACE the test pieces

in standard status for 24h. CONDUCT the test according to the requirements of

Table 3.

5.3.6 Brittle temperature

The brittle temperature determination shall be carried out according to the

provisions of GB/T 15256.

5.3.7 Hot air ageing

The hot air ageing test shall be carried out according to the provisions of GB/T

3512.

5.3.8 Ozone ageing

The ozone ageing test shall be carried out according to the provisions of GB/T

7762.

5.3.9 Rubber and metal adhesion properties

5.3.9.1 Sample dimensions

As shown in Figure 2, USE finished products as test pieces during the rubber

and metal adhesion test. The test pieces shall be (20 ± 1) mm wide. The

adhesion length of rubber and steel plates l shall be the actual dimensions of

the product.

Figure 2 Test Piece for Rubber and Metal Adhesion

5.3.9.2 Test procedures

Respectively CLAMP the metal end and rubber end of the test piece on the

upper and lower chucks of the testing machine. STRETCH at a speed of (50 ±

5) mm/min. RECORD the damage type.

6.1 Inspection classification

6.1.1 Exit-factory inspection

6.1.1.2 Inspection items

For the dimensional tolerances and appearance quality, CONDUCT exit-factory

inspection. For the hardness, tensile strength, elongation at break and tear

strength, CONDUCT exit-factory inspection batch by batch.

6.1.2 Type inspection

All the technical requirements for type inspection items are listed in this Part.

CONDUCT the type inspection under one of the following circumstances.

6.1.3 Periodic inspection

Under normal circumstance, CONDUCT the ozone ageing inspection at least

once a year. CONDUCT the brittle temperature inspection at least once every

six months. For the compression set, hot air ageing, rubber and metal adhesion

properties (only applicable to Type FG composite waterstops with steel edges)

and rubber and cord fabric adhesion strength (only applicable to Type JX

composite waterstops with cord fabric), CONDUCT the inspections once every

quarter.

6.2 Determination rules

6.2.1 If the dimensional tolerances, appearance quality and various physical

property indicators of rubber materials comply with the technical requirements,

the products will be determined as conforming.

7.1 USE appropriate materials not affecting the quality of waterstops for

packaging.

7.2 Each packaging shall have a product certificate, and shall be indicated

with product name, product marking, trademark, production license number,

manufacturing plant's name and address, production date and product standard

number.

7.4 Under the condition of complying with the provisions of Section 7.3, the

product properties shall conform to the provisions of this Part within 12 months

since the date of production.

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