GB/T 35467-2017 PDF English

GB/T35467-2017 (GBT35467-2017): PDF in English

GB/T 35467-2017 NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 91.120.30 Q 17 Wet installed waterproofing sheets 湿铺防水卷材 ISSUED ON: DECEMBER 29, 2017 IMPLEMENTED ON: NOVEMBER 01, 2018 Issued by: State Administration for Market Regulation; Standardization Administration of PRC. Table of Contents Foreword ... 3  1 Scope ... 4  2 Normative references ... 4  3 Categories ... 5  4 Requirements ... 5  5 Test method ... 7  6 Inspection rules ... 17  7 Marking, packaging, storage, transportation ... 19  Wet installed waterproofing sheets 1 Scope This standard specifies the classification, requirements, test methods, inspection rules, marking, packaging, storage and transportation of wet installed waterproofing sheets. This standard applies to self-adhesive polymer-modified asphalt waterproofing sheets that use cement paste or cement mortar bonded to the concrete base. 2 Normative references The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this standard. GB/T 328.2 Test methods for building sheets for waterproofing - Part 2: Bitumen sheets for waterproofing - Visible defects GB/T 328.8 Test methods for building sheets for waterproofing - Part 8: Bitumen sheets for waterproofing - Tensile properties GB/T 328.9-2007 Test methods for building sheets for waterproofing - Part 9: Plastic and rubber sheets for waterproofing - Tensile properties GB/T 328.10-2007 Test methods for building sheets for waterproofing - Part 10: Bitumen plastic and rubber sheets for waterproofing - Water tightness GB/T 328.11-2007 Test methods for building sheets for waterproofing - Part 11: Bitumen sheets for waterproofing-flow resistance at elevated temperature GB/T 328.14 Test methods for building sheets for waterproofing - Part 14: Bitumen sheets for waterproofing - Flexibility at low temperature GB/T 328.20 Test methods for building sheets for waterproofing - Part 20: Bitumen sheets for waterproofing - Resistance to peeling of joints GB/T 328.26 Test methods for building sheets for waterproofing - Part 26: Bitumen sheets for waterproofing - Dissoluble composite of membrane (impregnated and coated asphalt amount) GB/T 529-2008 Rubber, vulcanized or thermoplastic - Determination of tear strength (Trouser, angle and crescent samples) JG/T 245 Vibrating table for concrete test 3 Categories 3.1 Type The products are divided into polymer film-based waterproofing membranes, polyester tire-based waterproofing membranes (PY); polymer membrane- based waterproofing membranes are divided into high-strength (H-type) and high-elongation (E-type). The polymer film can be located on the surface or in the middle of the sheet. Products are divided into single-sided adhesive (S) and double-sided adhesive (D) according to the bonding surface. 3.2 Specifications Product thickness: Categories H and Class E are 1.5 mm and 2.0 mm. Category PY is 3.0 mm. Other specifications can be agreed between the supplier and the purchaser. 3.3 Marking Products are marked in order of name, this standard number, type, bonding surface, full thickness, area. Example: 10 m2 3.0 mm double-sided adhesive polyester wet installed waterproof sheet is marked as: Wet installed waterproofing sheet GB/T 35467-2017-PY D 3.0-10. 3.4 Purpose The wet installed waterproofing sheet is used for non-exposed waterproofing projects. Cement paste or cement mortar is used to bond the concrete base. It should use self-bonding overlap between the sheets. 4 Requirements 4.1 Area, mass per unit area, thickness of the anti-sticking material. Use the average value of the 5 points as the thickness of the sheet. The thickness does not include particles on the surface of the sheet. For products of sanding surface or with particulate matter, it shall be measured within about 1 m range length of the edge of the sheet. 5.6 Appearance It is performed according to GB/T 328.2. 5.7 Soluble content It is performed according to GB/T 328.26. 5.8 Tensile properties 5.8.1 Categories H and E sheets It is performed according to the method A in GB/T 328.9-2007. Adjust the distance between the fixtures. The distance between the marked lines is 100 mm. Record the maximum tensile force (N) and the elongation at the maximum tensile force (%). Take the average of 5 samples in the same direction. For the tensile force, multiply the test result by 2 to convert the unit to N/50 mm. Perform test along the longitudinal and lateral directions, respectively. Record whether the rubber layer is separated from the polymer film during tension. If the sample is still not broken when the test machine tensions to the limit position, it may shorten the spacing between the fixtures and change the spacing between the marked lines to 50 mm. Use a new sample to perform test again. The elongation rate is calculated by the spacing between the marked lines. The arithmetic mean of the longitudinal test results, the arithmetic mean of the lateral test results, the arithmetic mean during tension shall meet the requirements. 5.8.2 Category PY sheets It is performed according to GB/T 328.8. Record whether the rubber layer and the base are separated. The arithmetic mean of the longitudinal test results, the arithmetic mean of the lateral test results, the arithmetic mean during tension shall meet the requirements. 5.9 Tear force 5.9.1 Categories H and E sheets It is performed according to GB/T 529-2008. Use the cut-free right-angled sample to directly read the maximum tensile force value; the result is expressed by the force value; the tensile speed is 250 mm/min. Calculate the arithmetic mean of the tensile force of 5 samples in the same direction as the longitudinal or lateral tear force of the sheet, respectively, in the temperature. 5.11 Low temperature flexibility It is performed according to GB/T 328.14. The bending shaft’s diameter of the categories H and E products is 20 mm; the bending shaft’s diameter of the category PY products of 3.0 mm thickness is 30 mm. Take 10 samples in the longitudinal direction. Respectively perform test at the upper surface of 5 samples and lower surface of the other 5 samples. When at least 4 samples have no crack under visual observation for the 5 samples at each side, this side passes the test. When both sides pass the test, it is deemed as complying with the requirements of low temperature flexibility. 5.12 Impermeability It is performed according to the method B of GB/T 328.10-2007. The categories H and E sheets use cross slotted discs; the category PY sheets use 7-hole discs; the test time is 120 min. Remove the anti-adhesive material and cover the filter paper to avoid sticking. When the three samples are impermeable at the specified pressure and the specified time, it is deemed as complying with the impermeability requirements. 5.13 Peel strength between sheets (lap edge) 5.13.1 No treatment It is performed according to GB/T 328.20. Cut a sample at the overlap of the longitudinal long side of the sheet. Cut another sample on the other side opposite to the longitudinal long side of the sheet. Remove all the anti-adhesive material on the surface of the sample. The lower surface of the one sample is bonded to the upper surface of the other sample. The bonding surface is (50 × 75) mm. It is repeatedly rolled 3 times by a pressure roller which has a mass of 2 kg and a width of 50 mm ~ 60 mm. After bonding, it is left for 24 hours. Divide the maximum peeling force by the width of the sample to get the result of the peel strength of the sample, in the unit of N/mm. The test result is the arithmetic mean of the results of 5 samples. 5.13.2 Immersion treatment The sample as overlapped according to 5.13.1 is immersed in (23 ± 2) °C water for (168 ± 2) h. Take it out and dry the surface. Then perform the test according to 5.13.1. 5.13.3 Heat treatment Put the two non-overlapped samples without removing the surface insulation material horizontally into a (70 ± 2) °C oven for (168 ± 2) h. Take them out and place it at (23 ± 2) °C for 24 h. Cut the processed samples. It is performed according to 5.13.1. 5.14 Oil permeability Remove the anti-adhesive material on the lower surface of the sample. Place the adhesive side down on 5 layers of medium-speed qualitative filter paper which has an area of not smaller than the sample. Then use aluminum foil to seal and wrap the filter paper and sample. Horizontally place it on a glazed tile. Let the filter paper at lower side. Add a 1 kg weight on the sample. The contact surface of the weight is not less than the size of the sample. Then place the sample in an oven that has been adjusted to a temperature of (80 ± 2) °C; place it horizontally for 24 h ± 15 min. Then place it at (23 ± 2) °C for 2 h. Check the number of sheets with permeable oil. All filter papers with traces of contamination are counted as permeable. The maximum number of sheets with permeable oil in the 3 samples is used as the test result. 5.15 Adhesion At (23 ± 2) °C, stick the sample to two mirror stainless steel plates which have a thickness of not less than 1.5 mm and whose surface had been cleaned and smoothed by a solvent. The bonding area of the upper stainless steel plate is (50 × 50) mm. After removing the anti-adhesive material from the adhesive part of the sample, it is not allowed to contact with hands and other objects. Immediately attach it to the stainless steel plate. Then use a pressure roller which has a mass of 2 kg and a width of 50 mm ~ 60 mm to repeatedly roll it 3 times. After placing the bonded sample at (23 ± 2) °C for 24 hours, hang it vertically in the direction as shown in Figure 2. Hang a 1 kg w.......
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