GB 18967-2003 Modified asphalt ethylene-based waterproofing membrane

This standard specifies the classification, requirements, test methods, inspection rules, marking, packaging, transportation and storage of modified asphalt ethylene waterproofing membrane. This standard applies to waterproofing membranes made of modified asphalt as the base material, high-density polyethylene film as the base, polyethylene film or aluminum foil as the surface covering material, and are made by rolling, water cooling and molding. GB 18967-2003 Modified asphalt ethylene waterproofing membrane GB18967-2003 standard download decompression password: www.bzxz.net

1CS 91. 060. 30
National Standard of the People's Republic of China
GB 189672003
Modified bituminous sheet mater ialsusing polyethylene reinforcement2003-02-11Promulgated
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
Implementation on 2003-10-01
CB18967-2003
Items 1 to 5 in this standard are mandatory and the rest are recommended. The consistency of this standard with Spanish standards UNE104-239-89 "Modified oxidized asphalt membranes for bituminous and modified asphalt waterproofing materials" and UNE104-242-89 (90) Part 1: Elastomer-modified asphalt membranes for bituminous and modified asphalt waterproofing materials" is non-equivalent. The roll weight, physical and mechanical properties and test methods of this standard adopt Spanish standards. The requirements for area, impermeability, hot air aging and artificial climate accelerated aging are added, and the test methods adopt relevant national standards. This standard is formulated on the basis of JC/T633-1996 "Modified asphalt vinyl waterproofing membranes". Compared with JC/T633-1996: the roll material with aluminum foil covering the upper surface is added; the product grade is cancelled, and the product is divided into type I and straight type; the hot air aging and artificial climate accelerated aging test items are added. This standard is implemented from the beginning, JC/T 633-1996 as the standard. This standard is proposed by the State Bureau of Building Materials Industry (formerly). 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: National Institute of Standardization of Building Materials Industry, Panjin Yuwang Waterproof Building Materials Group Co., Ltd. The main drafters of this standard are: Yang Bin, Zhan Chamin, Bao Sheng, Zhang Chengan, Gan Hehua, Li Ou Ti. This standard is released for the first time.
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1 Scope
Modified asphalt polyethylene waterproof membrane
GB 18967—2003
This standard specifies the classification, requirements, test methods, inspection rules, marking, packaging, transportation and storage of modified asphalt polyethylene waterproof membrane.
This standard is applicable to waterproof membrane made of modified asphalt as base material, high-density polyethylene film as body, mulberry film or aluminum foil as upper surface covering material, rolled, water-cooled and formed. 2 Normative references
The clauses in the following documents become the clauses of this standard through reference in this standard. For all dated references, all subsequent amendments (excluding errata) or revised versions are not applicable to this standard. However, the parties who reach an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For all undated references, the latest versions are applicable to this standard. GB/T328--1989 Test method for bituminous waterproofing membranes Waterproofness GB/T18244-2000 Test method for aging of building waterproofing materials 3 Classification
31.1 According to the base material, it is divided into three categories: modified oxidized bitumen waterproofing membrane, styrene-butadiene rubber modified oxidized bitumen waterproofing membrane, and high-temperature modified bitumen waterproofing membrane.
3.1.1.1 Modified oxidized asphalt waterproofing membrane is a waterproofing membrane made by oxidizing and modifying asphalt with plasticizer oil and catalyst. 3.1.1.2 Styrene-butadiene rubber modified oxidized asphalt waterproofing membrane is a waterproofing membrane made by modifying oxidized asphalt with styrene-butadiene rubber and plastic resin. 3.1.1.3 High-grade modified asphalt waterproofing membrane is a waterproofing membrane made by modifying asphalt with high-grade materials such as APP and SBS. 3.1.2 According to the upper surface covering material, it is divided into two types: ethylene film and aluminum box. 3.1.3 According to the physical and mechanical properties, it is divided into type I and type II. 3.1.4 The membrane is divided into five types according to different base materials and different upper surface covering materials, see Table 1. Table 1 Membrane variety
Upper surface covering material
Ethylene membrane
3.2 Specifications
3.2. 1 Thickness: 3mm, 4 mm.
3.2.2 Width: 1100mm.
Modified oxidized asphalt
3.2.3 Area: The area of ​​each roll is 11m.
Styrene-butadiene rubber modified oxidized asphalt
Polymer modified asphalt
GB 18967--2003
3.2 4 The production of other specifications of coiled materials can be determined by negotiation between the supply and demand parties. 3.3 Marking
3.3.1 Code
Modified oxidized blue
Styrene-butadiene rubber modified oxidized asphalt
Polymer modified asphalt
High-density polyethylene film body
High-density polyethylene covering film
3.3.2 Marking method
The coiled material shall be marked in the following order:
U (first digit)
M (first digit)
P (first digit)
E (second digit)
E (third digit)
Name of coiled material, base material, body, upper surface covering material, thickness, model and number of this standard. Marking example:
3mm thick Type 1 ethylene-based polyethylene film-covered polymer modified asphalt waterproofing membrane is marked as follows: Modified asphalt polyethylene-based waterproofing membrane PEF3IGB/T189673.4 Application
Modified asphalt ethylene-based waterproofing membrane is suitable for waterproofing projects of industrial and civil buildings. The membrane with the upper surface covered with ethylene membrane is suitable for non-exposed waterproofing projects; the membrane with the upper surface covered with aluminum box is suitable for exposed waterproofing projects. 4 Requirements
4.1 Thickness, area and roll weight
The thickness, area and roll weight shall comply with the provisions of Table 2. Thickness, area and roll weight
Nominal thickness/mm
Upper surface cover material
Thickness/mm
Commercial area/1n
4.2 Appearance
Average value,
Minimum single value
Minimum roll weight/kg
Nominal area
4.2.1 The rolled coiled material shall be rolled tightly and evenly, and the difference between the inner and outer ends shall not exceed 20mm. The carcass shall be tightly bonded to the asphalt base material and the covering material.
4.2.2 The surface of the coiled material shall be flat, and no visible defects such as holes, cracks, lumps, etc. are allowed. 4.2.3 The rolled coils shall be easy to unwind at any product temperature between 4℃ and 40℃. There shall be no cracks or adhesions of more than 10 mm outside the length of 1000 mm from the coil core.
4 2.4 The rolled coils shall have no more than one joint, and the shorter section shall not be less than 1000 mm. The joints shall be cut neatly and extended by 150 mm for overlap.
4.3 Physical and mechanical properties
The physical and mechanical properties shall comply with the requirements of Table 3.
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Upper surface covering material
Waterproofness MPa,
Heat resistance/C
Tensile force/(N/50mm)
Elongation at break/% =
Low temperature/℃
Dimensional stability
Tensile retention rate/%,
Hot air aging
Human T air can
Accelerated aging
, Desire
Low temperature/℃
Tensile retention rate/%,
, Then
Low temperature/C
Note: Items 1 to 5 in the table are mandatory, 5 Test methods
5.1 Thickness, area and roll weight
5. 1. 1 Thickness
Table 3 Physical and mechanical properties
Waterproof
No dripping, no blistering
No cracks
No flow disappearance. No pooling
No cracks
CB18967—2003
Especially stagnant flow, no blistering
No cracks
Measured by a thickness gauge with a contact surface diameter of 10 mm, a unit area pressure of 0.02 MPa, and a graduation value of 0.01 mm, and the holding time is 5 s. Cut a 50 mm wide coil (50 mm×1 000 mm) along the width direction of the coil, measure 5 points in the width direction, take one point each 150 mm ± 15 mm inward from the length edge of the coil, and divide the remaining 3 points equally between the two points. Calculate the average value of the five points as the thickness of the coil: take the total average value of the thickness of the sampled coils as the thickness of the batch of products, and report the minimum single value. 5.1.2 Area
Use a tape measure with a minimum scale of 1 mm to measure the width and length at three locations at both ends and in the middle of the coil, and multiply the average length by the average width to obtain the area of ​​each coil. If there is a joint, the length is calculated by subtracting 150 mm from the sum of the lengths of the two sections. When the area exceeds the positive deviation specified in the standard, the coil weight is calculated according to the nominal area. When it meets the minimum coil weight requirement, it is also judged to be qualified. GB18967--2003
5. 1. 3 Packing
Use a platform scale with a minimum scale of 0. 2 kg to weigh the mass of each coil. 5.2 Appearance
Put the coil upright on a flat surface, place a steel ruler flat on the end face of the coil, and use another steel ruler with a minimum scale 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 check it according to the appearance quality requirements.
5. 3 Physical and mechanical properties
5.3.1 Test pieces
Before the test, place the sampled coil at room temperature of 15℃30℃ for at least 1h. Then cut two full-width coil samples with a length of 1000mm in the longitudinal direction at a distance of 2000mm from the end, one for physical and mechanical properties testing; the other for standby. Cut the test pieces according to the location 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.
The hot air aging and artificial climate accelerated anti-aging performance test pieces are cut according to GB/T18244-2000. Take 2 groups in total. One group is used for aging test, and the other group is used as comparison test pieces to measure performance under standard conditions. Table 4 Specimen size and quantity
Test item
Waterproof
Heat resistance
Low temperature resistance
Dimensional stability
Specimen code
Modal direction 1000
Specimen size/mm
150×150
100X100
150×150
150×25
400×50
Figure 1 Specimen position
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Quantity/piece
5 in longitudinal and transverse directions
6 in longitudinal direction
3 in longitudinal and transverse directions
Unit: mm
5.3.2 Waterproof
5. 3. 2. 1 Test apparatus
Waterproof instrument.
5.3.2.2 Test method
GB 18967--2003
The waterproof instrument specified in GB/T 328. 3-1989 is used, but the pressure cover of the water-permeable tray is the metal groove tray shown in Figure 2. Unit: mm
Figure 2 Metal groove tray for water-impermeability test
5.3.2.3 Test steps
The test is carried out at room temperature. First, make preparations according to the provisions of GB/T 328. 3-1989, place the three samples in Table 4 (D) in three water-permeable trays respectively, cover the groove trays tightly, and then operate the waterproof instrument according to the provisions of GB/T 328. 3-1989, keep the pressure constant at 0.3 MPa for 30 minutes, and observe and record whether there is water seepage on the surface of the sample. 5.3.3 Heat resistance
5.3.3.1 Test equipment
Electric oven with hot air circulation: temperature range 0℃～200℃, temperature control accuracy ±2℃. 5.3.3.2 Test steps
Drill two holes at 10mm~15mm from the edge of the test piece, as shown in Figure 3, use a paper clip to hang the small holes of the test piece, and vertically place it in the oven that has been kept at the temperature specified in Table 3. The distance between the surface of the test piece and the box wall should not be less than 50mm, and a certain distance should be left between the test pieces to prevent adhesion. The center of the test piece and the mercury ball of the thermometer should be at the same horizontal position. At the bottom of each test piece, place a bearing to receive the asphalt below.
Keep the test piece in the oven at the specified temperature for 2h. Observe whether there is flow and bubbling on the surface of the test piece. Unit: imm
Figure 3 Test specimen for heat resistance test
GB 189672003
5.3.4 Tensile force and elongation at breakwww.bzxz.net
5.3.4.1 Test apparatus
Tensile machine: measuring range 0 N 1 000 N, minimum reading value 0.5 N. 5.3.4.2 Test temperature
5.3.4.3 Test steps
Put the test piece (E, E') cut according to 5.3.1 at the test temperature for not less than 2 h. Calibrate the test machine, set the tensile speed to 100mm/min, clamp the specimen in the center of the fixture, and do not twist it. The distance between the upper and lower fixtures is 70mm. Start the test machine until the specimen breaks. Record the maximum load and the length at break during the stretching process. 5.3.4.4 Calculation. Calculate the arithmetic average (integer) of the tensile forces of the five specimens in the longitudinal and transverse directions as the longitudinal and transverse tensile forces of the coil, in N/50mm. The elongation at break is calculated according to formula (1): e(%) = (ei —eg)/e. × 100. Where: elongation at break, %; a——effective length of the specimen before load is applied, in millimeters (mm). ——length of the specimen at break, in millimeters (mm). 5.3.5 Low temperature temperature
5.3.5.1 Test apparatus
Low temperature refrigerator, temperature range -20℃~15℃, temperature control accuracy ±2℃. Flexible bending plate, size: 75mm×75mm; radius (): 15mm25mm, schematic diagram of bending plate is shown in Figure 4. Unit: mm
Figure 4 Flexible bending plate
5.3.5.2 Test steps
Put the test piece (A) and the bending plate cut according to 5.3.1 into a refrigerator cooled to the standard temperature (with freezing liquid) and kept at a constant temperature for 2 h. Under the standard temperature, bend the test piece around the flexible bending plate at a speed of 180° within 3 s in the low temperature refrigerator. For 3 mm coil, use a bending plate with a radius (z) of 15 mm, and for 4 mm coil, use a bending plate with a radius (r) of 25t mm. Among the 6 specimens, the 1: surface of 3 specimens and the lower surface of the other 3 specimens are in contact with the flexible bending plate. Take out the specimens and observe with the naked eye whether there are cracks in the coating layer of the specimens.
53.6 Dimensional stability
5.3.6.1 Test equipment
Oven with hot air circulation: overflow range 0℃～200℃, temperature control accuracy ±2℃. Vernier caliper: 0mm~125mm, accuracy 0.02mm. 5. 3. 6. 2 Test steps
Mark the specimens according to Figure 5 (a, a\). Then place them on the aluminum plate, tilt the aluminum plate 30\, and put them in the oven at a constant temperature for 2 hours after reaching the temperature specified in Table 3.
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Figure 5 Specimen for dimensional stability test before constant temperature 25
GB1B967—2003
Unit: mm
Take out the specimen from the oven. After placing it at an ambient temperature of (23±2)°C for 2 h, re-mark aa\ on the aa' line, so that the aa\ distance is maintained at 350 mm, as shown in Figure 6. Use a vernier caliper to measure the αa\ distance, and measure 6 pieces in total. Unit: mm
5.3.6.3 Calculation of test results
Figure 6 Dimensional stability of the test specimen after constant temperature determination is expressed by the longitudinal and transverse dimensional change rates, and is calculated according to the following formula\
Longitudinal change rate (%) = (A,/350) × 100 Where:
Where:
The arithmetic mean of the distance aε\ of the three longitudinal (C) specimens, in millimeters (mm). TTransverse change rate (%) = (A2/350)X100Az—The arithmetic mean of the distance aa\ of the three transverse (C') specimens, in meters (mm). The calculation result is accurate to 0.1%.
5.3.7 Hot air aging
According to the hot air aging method of GB/T18244-2000, the test condition is 70C, and the specimen is placed horizontally for 168h. After aging, check the appearance of the specimen, measure the longitudinal tension and low temperature temperature, and calculate the longitudinal tension retention rate. 5.3.8 Artificial climate accelerated aging
According to GB/T 18244-2000, use the xenon arc lamp method, the test time is 720 h (the cumulative radiation energy is about 1500 MJ/m\). After aging, check the appearance of the specimen, measure the longitudinal tension and low temperature temperature, and calculate the longitudinal tension retention rate. 6 Inspection rules
6.1 Inspection classification
It is divided into factory inspection and type inspection.
6. 1.1 Factory inspection
Factory inspection includes roll weight, area, thickness, appearance, water-tightness, heat resistance, tensile strength and elongation at break, and low temperature temperature. GB 18967—2003
6.1.2 Type inspection
Type inspection includes all the provisions in the requirements. Type inspection should be carried out in one of the following situations: a) When a new product is put into production or when the product is finalized and identified b) During normal production, it should be carried out every six months. Artificial climate accelerated aging is conducted every two years; E) When there are major changes in raw materials, processes, etc. that may affect product quality; d) When there are major differences between the factory inspection results and the above-mentioned type inspection results: e) When the product is resumed after 6 months of suspension; f)
When the national quality supervision and inspection agency proposes type inspection requirements, 6.2 Batch
The same type: the same specification 10,000 m\ is a batch, and less than 10,000 m2 can also be considered as a batch. 6.3 Sampling
6.3.1 Randomly select 5 rolls from each batch of products for thickness, area, roll weight and appearance inspection. 6.3.2 Physical and mechanical properties
Randomly select 1 roll from the materials with qualified thickness, area, weight and appearance for physical and mechanical properties test. 6.4 Judgment rules
6.4.1 Judgment of thickness, area, roll weight and appearance When the above inspection results of the 5 roll samples are in compliance with the provisions of 4.1 and 4.2, the thickness, area, roll weight and appearance are judged to be qualified. If one item does not meet the requirements, it is allowed to take another 5 roll samples from the batch of products to recheck the unqualified items. If all meet the requirements of the standard, it is judged to be qualified. If it still does not meet the standard, the batch of products is judged to be unqualified. 6. 4. 2 Judgment of physical and mechanical properties
When the average value of the test results of tensile force, elongation at break, and dimensional stability reaches the standard specified index, it is judged to be qualified. Water impermeability and heat resistance, when each group of 3 test pieces meets the standard specified index, it is judged to be qualified. Low temperature temperature: At least 5 of the 6 samples are found to be qualified when cracks are found on the surface. When the test results of hot air aging and artificial climate accelerated aging meet the requirements of Table 3, it is judged to be qualified. If all test results meet the requirements of Table 3, the physical and mechanical properties of the batch of products are considered qualified. If one indicator does not meet the requirements of the standard, 5 rolls can be randomly selected from the batch of products, and 1 roll can be randomly selected from them for single re-test of the unqualified items. If the requirements of the standard are met, the batch of products is considered qualified.
6.4.3 Overall judgment
When the thickness, area, weight, appearance and physical and mechanical properties meet all the technical requirements of the standard, and the marking meets the requirements of 7.1, the batch of products is considered qualified.
7 Marking and packaging
7.1 Marking
The outer packaging of the coil should have obvious markings indicating: a) manufacturer name
b) trademark
c) product mark;
d) production date or batch number;
t) production license number;
f) storage and transportation precautions.
7.2 Packaging
The coiled material should be packed with plastic film, and the two ends of the cylinder should be sealed with thermoplastic, and tied with tape. It can also be packed in woven bags. TYKAoNY KAca-
Transportation and storage
During transportation, it should be placed horizontally, and must not be tilted or pressed horizontally. If necessary, it should be covered with bitter cloth. 2 Storage
8.2.1 The coiled material should be stored horizontally, and the stacking height should not exceed 5 layers. At the same time, avoid sun and rain, pay attention to ventilation. 2 Under normal storage and transportation conditions, the storage period is 1 year from the month of production. B.2.2
GB189672003
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