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GB/T 35467-2017 PDF in English


GB/T 35467-2017 (GB/T35467-2017, GBT 35467-2017, GBT35467-2017)
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GB/T 35467-2017: PDF in English (GBT 35467-2017)

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 weight (including the mass of
the lower plate) on the lower end of the lower plate. Start time keeping. Record
the time required for the sample to completely peel off from the upper plate, in
the unit of min. Take the average of the test results of 5 samples. If it is not
peeled for more than 60 min, it is recorded as more than 60 min.
The double-side self-adhesive products are carried out on both sides; when
both sides pass the test, it is deemed as complying with the adhesion
requirements.
5.17 Peel strength after immersion in cement mortar
Prepare and cure the sample according to 5.16.1.1. Immerse it in water at (23
± 2) °C for 28 d ± 2 h. Then perform the test according to 5.16.1.2.
5.18 Thermal aging
5.18.1 Categories H and E sheets
Place the sample flatly on a plywood with a larger size, with the adhesive side
facing up; the insulation material on the surface of the adhesive layer is retained.
It may place a non-woven fabric of similar size and 3 mm ~ 4 mm thick
aluminum-plastic plate on the adhesive side to avoid rolling up. Place it
horizontally in an oven at (80 ± 2) °C for (168 ± 2) h. Take it out and place at
(23 ± 2) °C for 24 h. Then cut the sample. Follow 5.8.1 to measure the tensile
performance. Use the formula (1) to calculate the retention rate. Follow 5.11 to
determine the low temperature flexibility.
Where:
Q - Tensile force, elongation retention rate, expressed in %;
q1 - Tensile force, elongation value after thermal aging;
q0 - Tensile force, elongation value before thermal aging.
The test results are the average of 5 samples in the same direction. It shall
meet the requirements in both longitudinal and lateral directions.
5.18.2 Category PY sheets
Retain the isolation materials of the sample. Horizontally place it in an oven at
(80 ± 2) °C for (168 ± 2) h. Take it out and place it at (23 ± 2) °C for 24 h. Follow
the 5.8.2 to measure the tensile performance. Follow the 5.8.1 to calculate the
retention rate. Follow 5.11 to determine the low temperature flexibility.
5.19 Size change rate
Place the sample flatly on a plywood with a slightly larger size, with the adhesive
side facing up. Retain the isolation material at the surface of adhesive layer. It
may place a non-woven fabric of similar size and 3 mm ~ 4 mm thick aluminum-
plastic plate on the adhesive layer to avoid rolling up. Then horizontally place
the sample in an oven at (90 ± 2) °C for 24 h ± 15 min. Take it out and place it
at (23 ± 2) °C for 2 h. Flatten the sample flatly. Measure the longitudinal size
and lateral size of the polymer film base or polyester tire base of the sample at
properties of the batch of products are judged to be qualified. If only one of the
items does not meet the requirements of this standard, it allows to randomly
take another 1 coil from this batch of product to retest the single item. If it is
qualified, the physical and mechanical properties of the batch are qualified;
otherwise the physical and mechanical properties of the batch are not qualified .
6.4.3 General judgment
When the exit-factory inspection results all meet the relevant requirements of
Chapter 4, this batch of products is qualified.
When the results of the type inspection test meet all the requirements of
Chapter 4, the batch of products is judged to be qualified.
7 Marking, packaging, storage, transportation
7.1 Marking
The product’s outer packaging shall include:
a) Product name;
b) Manufacturer name and address;
c) Trademark;
d) Product marking;
e) Production date or batch number;
f) Precautions for storage and transportation;
g) Inspection conformity identification.
7.2 Packaging
Products are packaged in a manner suitable for storage and transportation.
7.3 Storage and transportation
During storage and transportation, products of different types and specifications
shall be stacked separately and shall not be mixed. Avoid sunlight and rain; pay
attention to ventilation. Keep away from fire. The storage temperature shall not
be higher than 45 °C. The stacking height of the sheet shall not exceed 5 layers
when stored flatly. When it is stored vertically, it shall be stacked in single layer.
Prevent tilting or side pressure during transportation; cover with cloth when
necessary.
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Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.