This standard specifies the classification, product marking, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of polymer waterproof material waterstops. It is applicable to rubber sealing waterstops that are fully or partially cast in concrete and rubber sealing waterstops with steel edges. GB 18173.2-2000 Polymer waterproof materials Part 2: Waterstops GB18173.2-2000 Standard download decompression password: www.bzxz.net

GB18173.2—2000
Chapter 4 and Chapter 7 of this standard are mandatory, and the rest are recommended. This standard is equivalent to the German DIN7865/2—1982 "Specification and Test Specification for Sealing Tapes for Concrete" standard, and is formulated with reference to relevant national and industry standards. Its technical content is basically the same as the DIN7865/2 standard. Some items such as tear strength are higher than the German standard. For products with special aging resistance requirements, the test temperature is increased and the test conditions are strict. This standard classifies the materials and uses of rubber waterstops commonly used in the industry, and specifies the physical performance indicators of various types of waterstop products, which is basically consistent with the relevant standards.
This standard is the second part of the "Polymer Waterproof Material" standard. The first part is sheet materials, and the third part is expanded rubber. From the date of implementation of this standard, the original chemical industry standard HG/T2288-1992 will be abolished at the same time. This standard was proposed by the State Administration of Petroleum and Chemical Industry. This standard is under the jurisdiction of the National Rubber Standardization Committee's Lemon Rubber Miscellaneous Products Technical Committee. This standard was drafted by Beijing Rubber Products Design and Research Institute, and Shanghai Pengpu Rubber Products General Factory, Hengshui Baoli Engineering Rubber Co., Ltd., Shanghai Tunnel and Bridge Special Rubber Factory, Hengshui Yellow River Engineering Rubber and Plastic Co., Ltd., Hengshui Bridge and Lock Engineering Rubber Co., Ltd., Nanjing Rubber Factory, Shanghai Engineering Rubber Factory, Shanghai Rubber Products Factory, Shanghai Changning Rubber Products Factory, Hengshui Bridge and Liang Engineering Rubber Factory, Hengshui Budweiser Rubber Factory, Zhejiang Haiyan Qinshan Rubber Engineering Co., Ltd., Shanghai Zijiang Group Corporation, Beijing Rubber and Plastic Products Factory and other units participated in the drafting. The main drafters of this standard are: Liu Bing, Zhang Suying, Ding Jinxin, Lao Fuxing, Jiang Zhaofen, Chen Guangjin. 166
1 Scope
National Standard of the People's Republic of China
Polymer water-proof materials
Part 2 Waterstop
Polymer water-proof materials-Part 2. Waterstop
GB 18173. 2—2000
This standard specifies the classification, product marking, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of polymer waterproof material waterstop. It is applicable to rubber sealing waterstop and rubber sealing waterstop with steel edge that are cast in full or in part in concrete (hereinafter referred to as waterstop).
2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T528-1998 Determination of tensile stress-strain properties of vulcanized rubber or thermoplastic rubber (eqvISO37:1994) GB/T529-1999 Determination of tear strength of vulcanized rubber or thermoplastic rubber (trouser-shaped, rectangular and crescent-shaped test specimens) (eqvISO 34:1994) GB/T531-1999 Rubber pocket hardness test method for indentation hardness (idtISO7619:1986) GB/T2423.16--1999 Environmental testing for electrical and electronic products Part 2: Test method Test J and guidance: long match GB/T3512--1989 Rubber hot air aging test method (neqISO188:1976) GB/T7759--1996 Determination of compression permanent deformation of vulcanized rubber and thermoplastic rubber at room temperature, high temperature and low temperature (eqvISO 815:1991)
GB/T7762—1987 Ozone aging resistance test for vulcanized rubber Static tensile test method (neqISO1431/1:1980) GB/T9865.1-1996 Preparation of samples and test specimens of vulcanized or thermoplastic rubber Part 1: Physical tests (idt ISO 4461-1:1993)
GB/T15256-—1994
3 Classification and product marking
3.1 Classification
Determination of low-temperature brittleness of vulcanized rubber (multiple specimen method) (eqvISO812:1991) Waterstops are divided into the following three categories according to their use: a) Waterstops suitable for expansion joints, indicated by B; b) Waterstops suitable for construction joints, indicated by S; c) Waterstops suitable for joints with special aging resistance requirements, indicated by J. Note: For waterstop with steel edge, G is used to indicate it. 3.2 Product marking
3.2.1 The permanent marking of the product shall be marked in the following order: Approved by the State Administration of Quality and Technical Supervision on July 31, 2000 and implemented on March 1, 2001
Type, specification (length × width × thickness). 3.2.2 Marking example
GB18173.2--2000
The B-type waterstop with steel edge with a length of 12000 mm, a width of 380 mm and a nominal thickness of 8 mm is marked as: BG-12 000 mm × 380 mm × 8 mm
4 Technical requirements
4.1 Dimension tolerance
The structural diagram of the waterstop is shown in Figure 1, and its dimensional tolerance is shown in Table 1. L-Nominal width of waterstop; —Nominal thickness of waterstop Figure 1 Schematic diagram of the structure of waterstop
Table 1 Dimensional tolerance
Nominal thickness, mmWww.bzxZ.net
Limit deviation
4.2 Appearance quality
>6～10
>10～20
Width L, %
4.2.1 The surface of the waterstop is not allowed to have cracks, lack of glue, sponge and other defects that affect the use. The eccentricity of the center hole is not allowed to exceed 1/3 of the thickness of the tubular section.
4.2.2 The surface of the waterstop is allowed to have no more than 4 defects such as dents, bubbles, impurities, and bright scars with a depth of no more than 2mm and an area of ​​no more than 16mm2; but the design working surface is only allowed to have no more than 3 defects with a depth of no more than 1mm and an area of ​​no more than 10mm2. 4.3 Physical properties
The physical properties of the waterstop should comply with the provisions of Table 2. 168
Hardness (Shore A), degree
Tensile strength, MPa
Elongation at break, %
Compression set
Tear strength 2, kN/m
Brittle temperature, ℃
GB 18173.2-2000
Physical properties of waterstop
70℃×24 h, %
23℃X168 h,%
Change in hardness (Shore A) degrees
70℃×168hTensile strength, MPa
Hot air
Aging3
Elongation at break, %
Change in hardness (Shore A), degrees
100℃×168hlTensile strength, MPa
Elongation at break, %
Ozone aging 50pphm: 20%, 48h
Rubber to metal bonding
1The rubber to metal bonding item is only applicable to waterstops with steel edges. B
The section is inside the elastic body
2If there are other special needs, the supply and demand parties can agree to increase the inspection items appropriately, such as the mold test according to the user's needs, but its anti-sagging performance should be equal to or higher than level 2
4.4The tensile strength index of the joint of the water stop shall not be lower than 80% of the standard performance in Table 2 (except for the joints in on-site construction) 5Test method
The specifications and dimensions are measured with measuring tools, with the thickness accurate to 0.05mm and the width accurate to 1mm; the thickness measurement takes any 1m on the product as a sample (but must include a joint), and then takes four points from both ends of the product at the symmetrical parts of the designed working surface for measurement, and takes the average value.
5.2The appearance quality is checked by visual inspection and measuring tools. 5.3Determination of physical properties
Cut the specimens of sufficient length required for the test from the products that have passed the specification and dimension inspection, prepare the specimens according to the provisions of GB/T9865.1, and let them stand for 24 hours under standard conditions before testing according to the requirements of Table 2. 5.3.1 The hardness test shall be carried out in accordance with the provisions of GB/T531. 5.3.2 The tensile strength and elongation test shall be carried out in accordance with the provisions of GB/T528, using type I test specimens; the joints shall be ensured to be located within the two marking lines.
5.3.3 The compression permanent deformation test shall be carried out in accordance with the provisions of GB/T7759, using type B test specimens with a compression rate of 25%. Standard Adoption Instructions:
1] German standards are not classified.
2] This indicator is different from German standards.
31 The test temperature of Class J products is higher than that of German standards. 169
GB 18173. 2-2000
5.3.4 The tear strength test shall be carried out in accordance with the right-angle test specimen in GB/T529. 5.3.5 The brittle temperature test shall be carried out in accordance with the provisions of GB/T15256. 5.3.6 The hot air aging test shall be carried out in accordance with the provisions of GB/T3512. 5.3.7 The ozone aging test shall be carried out in accordance with the provisions of GB/T7762, and the test temperature shall be 40℃±2℃. 5.3.8 The bonding between rubber and metal may be carried out by any applicable shear or peel test method, but the test result shows that the broken part of the sample shall be between the elastomers.
5.3.9 The waterproof performance test shall be carried out in accordance with the provisions of GB/T2423.16. 6 Inspection rules
6.1 Inspection classification
6.1.1 Factory inspection
6.1.1.1 Batching and sampling
The waterstop production with the same mark each month shall be regarded as a batch, and the specifications, dimensions and appearance quality shall be inspected one by one; and sufficient samples shall be randomly selected from the samples that have passed the above inspection for physical performance inspection. 6.1.1.2 Inspection items
The dimensional tolerance, appearance quality, tensile strength, elongation at break and tear strength of the waterstop should be inspected batch by batch. 6.1.2 Type inspection
All technical indicators listed in this standard are type inspection items, and type inspection should usually be carried out in one of the following situations. a) Trial and development identification of new products;
b) Major changes in the structure, design, process, materials, production equipment, management, etc. of the product; c) Change of production, transfer to another factory, or resumption of production after suspension;
d) Contract provisions;
e) There is a significant difference between the factory inspection results and the last type inspection; f) The national quality supervision and inspection agency puts forward the requirement to conduct this test. Under normal circumstances, ozone aging should be inspected at least once a year, and the other items should be inspected every six months. 6.2 Judgment rules
If all indicators of dimensional tolerance, appearance quality and physical properties meet the technical requirements, the product is qualified. If one of the physical properties does not meet the technical requirements, double samples should be taken for retest. If the retest result is still unqualified, the batch of products is unqualified. 7 Marking, packaging, transportation, storage
7.1 The waterstop should be packaged with suitable items that will not affect its quality. 7.2 Each package should have a certificate of conformity and indicate the product name, product mark, trademark, manufacturer's name, factory address, production date, and product standard number.
7.3 During transportation and storage, care should be taken not to damage the packaging of the waterstop. It should be placed in a ventilated and dry place and should be kept away from direct sunlight. It is prohibited to contact with acids, alkalis, oils and organic solvents, and isolated from heat sources; it should be stored indoors and not be pressed heavily. 7.4 Under the conditions specified in 7.3, the product performance should meet the requirements of this standard within one year from the date of production. 170
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