Some standard content:
GB1B243—2000
Item 3.3 of this standard and items 1 to 6 in Table 3 are mandatory. The others are recommended. This standard adopts the relevant parts of DIN52132:1996 "Asphalt Roof Waterproofing Membrane" in a non-equivalent manner, and refers to the American Society for Testing and Materials ASTMD6222:1998 Polyester Felt Reinforced Random Propylene (APP) Modified Asphalt Membrane. The technical indicators of this standard, such as soluble content, impermeability, heat resistance, tension, elongation, low temperature sensitivity, tear strength, etc., are formulated. In order to ensure the durability of the membrane and waterproof layer, the technical requirements are added with the technical indicators of artificial climate such as rapid aging. Most of the technical indicators of this standard are consistent with those of DIN 52132:1996. Compared with JC/T559-1994 "Plastic Bitumen Waterproofing Membrane", this standard cancels the product classification, divides the product into Type I and Type II, adds tear strength and artificial climate accelerated aging, and adjusts the technical requirements and test methods. From the implementation of this standard, JC/T 559-1994 "Plastic Bitumen Waterproofing Membrane" will be invalid. This standard is proposed by the State Administration of Building Materials Industry. This standard is under the jurisdiction of the National Technical Committee for Standardization of Lightweight and Decorative Building Materials. The responsible drafting units of this standard are: China Building Waterproofing Materials Industry Association, Standardization Institute of the State Administration of Building Materials Industry, and Suzhou Waterproofing Materials Research and Design Institute of China Chemical Building Materials Company. The drafting units of this standard include: Shenyang Languang New Waterproof Material Co., Ltd., Panjin Yuwang Waterproof Building Materials Group Co., Ltd., Baoji Yuanzhi Oil and Salt Factory, Ezhong (Youdao) Chemical Building Materials Co., Ltd., Beijing Auckland Building Waterproof Material Co., Ltd., Chongqing New Waterproof Material Co., Ltd., Xuzhou Woniushan New Waterproof Material Co., Ltd., Wenzhou Changcheng Waterproof Material Factory, Changchun Jianshe Waterproof Material Co., Ltd., Baoding North Waterproof Engineering Company, Shanghai Jinxia Building Materials Co., Ltd., Baoding Petrochemical Plant Waterproof Material Branch, Zigong Linoleum Factory, Johns Manville (Shanghai) Nonwoven Fabric Co., Ltd., Changzhou Schuler Zhongxin Tianma Fiberglass Products Co., Ltd., Hunan Nonwoven Fabric Factory (Nuclear Industry), Jinyuan Donghe Chemical Co., Ltd.
The main drafters of this standard include: Zhang Shupei, Yang Bin, Zhu Zhiyuan, Shi Chongan, He Shengchuan, Li Guogan, and Zhong Dali. 1 Scope
National Standard of the People's Republic of China
Plasticizer modified bituminous sheet waterproofing membrane
Atactie polypropylene (APP)
modified bituminous sheet materlalsiiKAoNhiKAca-
GB 18243—2000
This standard specifies the classification, technical requirements, test methods, inspection rules, packaging marks, storage and transportation of plasticizer modified bituminous sheet waterproofing membrane.
This standard applies to building waterproofing membranes made of polyvinyl acetate felt or glass fiber felt as base, random polypropylene (APP) or polyolefin-based compound (APAOAPO) as modifier, and covered with isolation materials on both sides (collectively referred to as APP membranes). This standard does not apply to bituminous waterproofing membranes made of other modified asphalt, base and upper surface materials. 2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. At the time of publication of this standard, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T328.3-1989 Test method for asphalt waterproofing membrane Impermeability GB/T328.5-1989 Test method for asphalt waterproofing membrane Heat resistance GB/T18244-2000 Test method for aging of building waterproofing materials 3 Classification
3.1 Type
3.1.1 According to the base material, it is divided into two categories: tar ester base (PY) and glass fiber base (G). 3.1.2 According to the upper surface material, it is divided into two types: ethylene film (PE), fine sand (S) and mineral particles (sheets) (M). 3.1.3 According to the physical and mechanical properties, it is divided into type I and type I. 3.1.4 The membrane is divided into 6 varieties according to different base materials and different upper surface materials, see Table 1. Table 1 Coil material types
Upper surface material
Konvinyl film
Mineral particles (sheets) materialbzxz.net
3.2 Specifications
3.2.1 Width 1000mm.
3.2.2 Thickness
Polyester base roll 3 mm and 4 nm;
Glass fiber base roll 2 mm, 3 mm and 4 mm
Polyester base
3.2.3 Area The area of each roll is divided into 15m2, 10 m2 and 7.5 m2. State Administration of Quality and Technical Supervision 2D00-10-27 approved glass fiber base
2001-05-01 implementation
3.3 Marking
3.3.1 Marking method
The roll shall be marked in the following order:
GB 18243—2000
Plastic modified asphalt waterproofing roll, model, base, upper surface material, thickness and this standard number. 3.3.2 Marking example
3mm thick sand surface polyester type I plastomer modified asphalt waterproof membrane is marked as: APP I PY S3 GB 18243
3.4 Application
APP membrane is suitable for roof and underground waterproofing projects of industrial and civil buildings, as well as waterproofing of buildings such as roads and bridges, especially for waterproofing of buildings in higher temperature environments. 4 Technical requirements
4.7 Coil weight, area and thickness
Coil weight, area and thickness shall comply with the provisions of Table 2 Table 2 Coil weight, area and thickness
Specifications (nominal thickness), mm
Upper surface material
m*/roll
4.2 Appearance
Nominal area
Minimum coil weight, kg/roll
Average value ≥
Minimum single value
4.2.1 The coiled material shall be rolled tightly and evenly, and the end face shall not exceed 10mm inward or outward. 4.0
4.2.2 When the coiled material is unrolled at any product temperature of 4~60℃, there shall be no cracks or adhesions of more than 10mm outside the length of 1000mm from the core.
4.2.3 The tire base shall be soaked, and there shall be no unsoaked stripes. 4.2.4 The surface of the coil must be flat, without holes, missing edges or cracks. The particle size of the mineral particles (sheets) should be uniform and tightly adhered to the surface of the coil.
4.2.5 There should be no more than one joint per coil, and the shorter section should not be less than 1000mm. The joint should be cut neatly and extended by 150mm. 4.3 Physical and mechanical properties
The physical and mechanical properties should comply with the requirements of Table 3.
Table 3 Physical and mechanical properties
Soluble matter content
Impenetration
Pressure.MPa≥
Holding time,min≥
Heat resistance,C1
Tensile force.N/50mm
Elongation at maximum tensile force,%'≥
Low temperature.℃
Tear strengthN
Artificial climate
Accelerated aging
Tensile retention rate
GB18243--2000
Table 3 (End)
Low temperature,C
Note: Items 1 to 6 in the table are mandatory items 1) When a coil with a heat resistance exceeding 130°C is required, the indicator can be determined by negotiation between the supply and demand parties. 5 Test method
5.1 Coil weight, area and thickness
5.1.1 Coil weight
Use a platform scale with a minimum scale value of 0.2kg to weigh the mass of each coil. 5.1.2 Area
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No slip, flow, drip
No slip, flow, drip
No baby wrinkles
Use a tape measure with a minimum scale value of 1mm to measure the width and length at three points at both ends and the middle of the coil, and calculate the area of each coil by the average value of the length multiplied by the width. If there is a joint, it is calculated by subtracting 150mm from the sum of the two lengths. When the area exceeds the positive deviation specified in the standard, calculate its coil weight according to the nominal area. When it meets the minimum coil weight requirement, it is also judged to be qualified. 5.1.3 Thickness
Use a thickness gauge with a 10mm diameter contact surface, a unit area pressure of 0.02MPa, and a graduation value of 0.01mm to measure, and keep it for 5s. Cut a 50mm wide coil (50mm×1000mm) along the width direction of the coil,Measure 5 points on the width direction of the disk, take one point each 150mm ± 15mm inward from the edge of the length of the coil, and divide the remaining 3 points equally between these two points. For sand surface coils, the floating sand must be removed before measurement, and the measured value is recorded. Calculate the average value of the 5 points as the thickness of the coil. The total average value of the thickness of the coils sampled is taken as the thickness of the batch of products, and the minimum single value is reported. 5.2 Appearance
Put the coil upright on a plane, place a steel ruler flat on the end face of the coil, and use another steel ruler with a minimum graduation value of 1mm to vertically extend into the most concave part of the end face of the coil. The measured value is the in-out value of the end face of the coil. Then unfold the coil and inspect it according to the appearance quality requirements. Cut a strip of 50mm width in the width direction. There should be no unpenetrated stripes in the tire base. 5.3 Physical and mechanical properties
5.3.1 Test pieces
GB 18243-2000
After cutting the sample coil 2500mm away from the outer coil head, cut 2 full-width coil samples with a length of 800mm in the longitudinal direction, one for physical property testing and the other for standby. Cut the test pieces according to the position shown in Figure 1 and the size and quantity specified in Table 4. The distance between the edge of the test piece and the longitudinal edge of the coil is not less than 75mm.
Artificial climate rapid aging performance test pieces are cut according to GB/T 18244. Take 2 groups in total, one for aging test and one as comparison test pieces for performance measurement.
Table 4 Specimen size and quantity
Test items
Soluble content
Tensile force and elongation
Water impermeability
Heat resistance
Low temperature resistance
Tear strength
5.3.2 Soluble content
5.3.2.1 Solvent
Specimen code
F, F\
Carbon tetrachloride, chloroform, or trichloroethylene, industrial pure or chemical pure. 5.3.2.2 Test equipment
Analytical balance: Sensing disc 0.001g.
Extractor, 500mL Soxhlet extractor,
Electric drying oven: temperature range 0～300℃, accuracy ±2℃Filter paper: diameter not less than 150mm.
Specimen size, mm
100×100
250×50
150×150
100×50
150×25
200×75
1000 in transverse direction
Specimen cutting diagram
Quantity, pieces
5 in longitudinal and transverse directions
5 in longitudinal and transverse directions
5.3.2.3 Test procedures
GB18243—20D0
iiKAoNniKAca-
The three specimens (A) cut according to 5.3.1 are wrapped with filter paper and tied with cotton thread, and then weighed separately. Place the filter paper bag in the extractor, and heat and extract with the solvent volume of 1/2~2/3 of the flask capacity until the interflowing solvent is light in color. Take out the filter paper bag and let the adsorbed solvent evaporate first. Place it in an electric drying oven preheated to 105~110℃ and dry it for 1h. Then place it in a dryer and cool it to room temperature. Weigh the filter paper bag
5.3.2.4 Calculate
Soluble content according to formula (1)
A = K(G-P)
Where: A——Soluble content, g/m
K--coefficient, K=100,1/m;
G-weight of filter paper bag before extraction, BI
P-weight of filter paper bag after extraction.B.
Take the arithmetic average of the soluble content of the three test pieces as the soluble content of the coil. 5.3.3 Tension and elongation at maximum tension
5.3.3.1 Tensile testing machine: capable of measuring tension and elongation simultaneously. The measuring range is 0~2000N, and the minimum scale value is not greater than 5N. The elongation range can extend the distance between the clamps (180mm) by 1 times, and the clamping width of the clamp is not less than 50mm. 5.3.3.2 Test temperature 23℃±2℃
5.3.3.3 Test steps
Put the test pieces (B, B') cut according to 5.3.1 at the test temperature for not less than 24h. Calibrate the test machine, the tensile speed is 50 mm/min, clamp the test piece in the center of the clamp, and do not twist it. The distance between the upper and lower clamps is 180 mm
Start the test machine until the test piece is broken, and record the maximum tension and elongation at maximum tension. 5.3.3.4 Calculation
Calculate the arithmetic mean of the tensile forces of the five longitudinal or transverse specimens as the longitudinal or transverse tensile force of the coil, in N/50mm. The elongation at maximum tension is calculated using formula (2): E - 100(L, -- L)/L
Where: E—elongation at maximum tension, %, Ll—gauge length of the specimen at maximum tension, mm; L—initial gauge length of the specimen, mm
L-distance between fixtures, 180 mm.
Calculate the arithmetic mean of the elongation at maximum tension of the five longitudinal or transverse specimens as the longitudinal or transverse elongation of the coil. 5.3.4 Waterproofness
Waterproofness is carried out according to GT328.3. The upper surface of the coil is the water-facing surface. When the upper surface is sand or mineral granular material, the lower surface is the water-facing surface. When the lower surface material is fine sand, remove the floating sand on the fine sand surface with a sealing ring, then apply a circle of 60-100 hot asphalt, apply it evenly and wait for cooling for 1 hour before testing the watertightness. 5.3.5 Heat resistance
The heat resistance is carried out in accordance with GB/T328.5. After heating for 2 hours, observe and record whether the coating layer of the specimen slides, flows away, or drips. The coating layer at either end should not be displaced from the tire base, and the lower end of the specimen should be flush with the tire base, without sagging or dripping. 5.3.6 Low temperature temperature
5.3.6.1 Test equipment
Low temperature refrigerator: range 0~-30℃, temperature control accuracy ±2℃Semiconductor thermometer: range 30~-40℃, accuracy 0.5℃. Flexibility rod or bending plate: radius (r) 15mm, 25mm, bending plate schematic diagram see Figure 2 GB18243-2000
Figure 2 Schematic diagram of bending plate
Refrigeration liquid, body that does not react with coiled material, such as vehicle antifreeze, polyols, polyaldehydes. 5.3.6.2 Test method
Method A (arbitration method) Place freezing liquid (more than 6 L) in a container not less than 10 L, place the container in a low-temperature refrigerator, and cool to the temperature specified in the standard. Then place the test piece and the flexibility rod (plate) in the liquid at the same time, and keep it for at least 0.5 h after the temperature reaches the temperature specified in the standard. At the temperature specified in the standard, bend the test piece in the liquid around the flexibility rod (plate) 180 degrees at a hook speed within 3 s. Method B: Place the specimen and the flexibility rod (plate) in a low-temperature refrigerator that has been cooled to the temperature specified in the standard. After the temperature reaches the temperature specified in the standard, keep it for no less than 2 hours. At the temperature specified in the standard, bend the specimen 180 degrees around the flexibility rod (plate) at a uniform speed within 3 seconds in the low-temperature refrigerator.
5.3.6.3 Test steps
2 mm and 3 mm coils use a flexibility rod (plate) with a radius (r) of 15 mm, and 4 mm coils use a flexibility rod (plate) with a radius (r) of 25 mm. Among the 6 specimens, the lower surfaces of 3 specimens and the upper surfaces of the other 3 specimens are in contact with the flexibility rod (plate). Take out the specimen and observe with the naked eye to see if there are cracks in the coating layer of the specimen.
5.3.7 Tear strength
5.3.7.1 Tensile testing machine: Same as 5.3.3.1, the clamping width of the clamp shall not be less than 75 mm. 5.3.7.2 Test temperature: 23℃±2℃. 5.3.7.3 Test steps
Use a cutter or a die to cut the test pieces (F, F') cut according to 5.3.1 into the shape shown in Figure 3, and then place them at the test temperature for not less than 2h.
Figure 3 Tearing test piece
GB 18243—2000
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Calibrate the testing machine, the tensile speed is 50mm/min, the test piece is clamped in the center of the clamp, and it must not be twisted. The distance between the upper and lower clamps is 130mm.
Start the testing machine until the test piece is pulled apart, and record the maximum tensile force. 5-3-7.4 Calculation
Calculate the arithmetic mean of the tensile forces of the five longitudinal or transverse test pieces as the longitudinal or transverse tear strength of the coil, in N. 5.3.8 Artificial climate accelerated aging
According to GB/T18244. Using the arc lamp method, the test time is 720h (the cumulative radiation energy is about 1500MJ/m). After aging, check the appearance of the test piece, measure the longitudinal tension and low temperature temperature, and calculate the weaving tension retention rate. 6 Inspection rules
6.1 Inspection classification is divided into factory inspection and type inspection. Factory inspection items include: roll weight, area, thickness, appearance, impermeability, heat resistance, tension, elongation at maximum tension, low temperature temperature. Type inspection items include all the provisions in the technical requirements. 6.2 Type inspection is carried out in the following cases: a) When a new product is put into production or the product is finalized and identified; b) During normal production, it is carried out every six months. Artificial climate accelerated aging is carried out every two years: c) When there are major changes in raw materials, processes, etc., which may affect product quality; d) When there is a big difference between the factory inspection results and the above type inspection results: e) When the product is resumed after 6 months of suspension; f) When the national quality supervision and inspection agency puts forward type inspection requirements. 6.3 Group batch
One batch is 10,000m2 of the same type and specification. If it is less than 10,000m2, it can also be regarded as a batch. 6.4: Sampling
Randomly select 5 rolls from each batch of products for roll weight, area thickness and appearance inspection. 6.5 Judgment rules
6.5.1 Coil weight, area, thickness and appearance When the above inspection results of the 5 sample rolls meet the requirements of 4.1 and 4.2, the weight, area, thickness and appearance of the rolls are judged to be qualified. If one of the items does not meet the requirements, it is allowed to take another 5 rolls from the batch of products to re-check the unqualified items. If all meet the requirements of the standard, it is judged to be qualified; if it still does not meet the standards, the batch of products is judged to be unqualified. 6.5.2 Physical and mechanical properties
6.5.2.1 Sampling Randomly select 1 roll from the rolls with qualified weight, area, thickness and appearance for physical and mechanical properties test. 6.5.2.2 Judgment
When the average value of the test results of soluble content, elongation at maximum tensile force, and tear strength reaches the specified index in the standard, the index is judged to be qualified.
When the three test pieces in each group of water-impermeability and heat resistance meet the specified index in the standard, the index is judged to be qualified. When at least 5 of the 6 test pieces of low temperature temperature meet the standard indicators, the indicator is judged to be qualified. Type inspection and arbitration inspection must use method A.
When the test results of artificial climate accelerated aging meet the requirements of Table 3, the indicator is judged to be qualified. If all test results meet the requirements of Table 3, the physical and mechanical properties of this batch of products are judged to be qualified. If one indicator does not meet the requirements of the standard, it is allowed to randomly select 5 rolls from the batch of products, and randomly select 1 roll from them for single re-inspection of the unqualified items. When it meets the requirements of the standard, the batch of products is judged to be qualified.
6.5.3 Overall judgment
When the roll weight, area, thickness, appearance and physical and mechanical properties meet all the technical requirements of the Taiwan standard, and the packaging and marking meet the requirements of 7.1 and 7.2, the batch of products is judged to be qualified. 7 Packaging, marking, storage and transportation
GB18243
3—2000
7.1 Packaging coils can be packed in paper or plastic tape. When paper is packed, it should be packed in full cylinder, and the total length of the unpacked cylinder at both ends should not exceed 100mm.
7.2 Marking
a) Manufacturer's name:
b) Trademark;
c) Product mark:
d) Production date or batch number,
e) Production license number:
f) Storage and transportation precautions.
7. 3 Storage and transportation
7.3.1 During storage and transportation, products of different types and specifications should be stacked separately and should not be mixed. Avoid sun and rain, and pay attention to ventilation. The storage temperature should not be higher than 50℃, and the storage should be upright, with a height of no more than two layers. When transported by ship or train, the coils must be placed upright and the stacking height shall not exceed two layers to prevent tilting or horizontal pressure. Cover them when necessary. 7.3.2
Under normal storage and transportation conditions, the storage period is - years from the date of production.
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