GB 27789-2011 English PDF (GB27789-2011)

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GB 27789-2011: Thermoplastic polyolefin sheets for waterproofing
GB 27789-2011
GB
NATIONAL STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 91.120.30
Q 17
Thermoplastic polyolefin sheets for waterproofing
热塑性聚烯烃(TPO)防水卷材
ISSUED ON. DECEMBER 30, 2011
IMPLEMENTED ON. NOVEMBER 01, 2012
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China;
Standardization Administration of the People's Republic of
China.
3. No action is required - Full-copy of this standard will be automatically and
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Table of contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Terms and definitions ... 5 
4 Classification and identification ... 6 
5 Requirements ... 6 
6 Test methods ... 8 
7 Inspection rules ... 15 
8 Marking, packaging, storage and transportation ... 17 
Foreword
Chapter 5.3 of this standard is mandatory, AND the rest is recommended.
This standard was drafted in accordance with the rules given in GB/T
1.1-2009.
The consistency of standard to ASTM D6878.2008 “Standard specification for
thermoplastic polyolefin based sheet roofing” is not equivalent.
This standard was proposed by the China Building Materials Federation.
This standard shall be under the jurisdiction of the National Light Decoration
and Decoration Building Materials Standardization Committee, Building
Waterproof Material Subcommittee (SAC/TC 195/SC 1).
The main drafting organizations of this standard. China Building Materials
Science Research Institute Suzhou Waterproof Research Institute, China
Building Waterproofing Association.
The participating drafting organizations of this standard. Shenzhen Zhuobao
Scientific Co., Ltd., Shanghai Building Science Study Institute (Group) Co., Ltd.,
SOPREMA (Shanghai) Construction Materials Trade Co., Ltd., Basell Asia
Pacific Consulting (Shanghai) Co., Ltd., Dow Chemical Company (China) Co.,
Ltd., Shanghai Shenda Kobond New Material Co., Ltd., Shanghai Hainer
Building Technology Co., Ltd., Gessmann (Shanghai) International Trade Co.,
Ltd., Shandong Sida Building Systems Engineering Co., Ltd., Guangdong
Keshun Chemical Industry Co., Ltd., Pnata (Dalian) Technology Co., Ltd.,
Tangshan Desheng Waterproof Material Co., Ltd., Shanghai Tai’an
Engineering Industry Co., Ltd., Shanghai Yuhong Building Waterproof Material
Co., Ltd., Changshu Sanheng Building Material Co., Ltd., Sichuan Shuyang
Waterproof Material Co., Ltd.
The main drafters of this standard. Zhu Zhiyuan, Zhu Dongqing, Yang Sheng,
Zou Xianhua, Zhu Xiaohua, Meng Yun, Shang Huasheng, Jiang Qinyi, Chen
Jianhua, Chen Wenjie.
Thermoplastic polyolefin sheets for waterproofing
1 Scope
This standard specifies the terms and definitions, classification and
identification, requirements, test methods, inspection rules, marking,
packaging, storage and transportation of thermoplastic polyolefin sheets for
waterproofing.
This standard applies to the waterproof sheets which use the ethylene and
α-olefin polymer as the main raw material for the purposes of building
engineering.
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 328.5-2007 Test methods for building sheets for waterproofing - Part 5.
Plastic and rubber sheets for waterproofing - Thickness and mass per unit
area
GB/T 328.7 Test methods for building sheets for waterproofing - Part 7.
Plastic and rubber sheets for waterproofing length, width, straightness, and
flatness
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 waterproof – Water tightness
GB/T 328.13 Test methods for building sheets for waterproofing - Part 13.
Plastic and rubber sheets for waterproofing – Dimensional stability
GB/T 328.15 Test methods for building sheets for waterproofing - Part 15.
Plastic and rubber sheets for waterproofing – Foldability at low temperature
GB/T 328.19 Test methods for building sheets for waterproofing - Part 19.
Plastic and rubber sheets for waterproofing – Resistance to tearing
GB/T 328.21 Test methods for building sheets for waterproofing - Part 21.
Plastic and rubber sheets for waterproofing – Resistance to peeling of joints
GB/T 328.25-2007 Test methods for building sheets for waterproofing - Part
25. Bitumen plastic and rubber sheets for waterproofing – Resistance to
static loading
GB/T 528 Rubber, vulcanized or thermoplastic – Determination of tensile
stress – Stain properties
GB/T 529 Rubber, vulcanized or thermoplastic – Determination of tear
strength (trouser, angle and crescent test pieces)
GB 12952-2011 Polyvinyl chloride plastic sheets for waterproofing
GB/T 18244 Test methods for resistance to weathering of building
waterproofing materials
GB/T 18378 Terminology for waterproof bitumen and waterproof sheet
GB/T 20624.2 Paints and varnishes – Rapid-deformation (impact resistance)
tests – Part 2. Falling-weight test small area indenter
GB 50009 Load code for the design of building structures
3 Terms and definitions
The terms and definitions as defined in GB/T 18378 AND the following terms
and definitions apply to this document.
3.1
Homogeneous thermoplastic polyolefin waterproofing sheets
It refers to the thermoplastic polyolefin waterproofing sheets that do not
employ an inner reinforcing material or a backing material.
3.2
Thermoplastic polyolefin waterproofing sheets backed with fabric
It refers to the thermoplastic polyolefin waterproofing sheets which
compound the fabric such as polyester nonwoven fabric at the lower
surface.
3.3
Thermoplastic polyolefin waterproofing sheets with internally
reinforced fabric
It refers to the thermoplastic polyolefin waterproofing sheets which is
reinforced with polyester or fiberglass meshes in the middle of the sheet.
6.4 Appearance
Visual inspection.
6.5 Tensile performance
The test sample size of type L and P product is 150 mm × 50 mm; PERFORM
test in accordance with the method A of GB/T 328.9-2007; the fixture spacing
is 90 mm; the elongation is calculated using the 70 mm marking line spacing;
the type P elongation is taken as the elongation L at the maximum tension,
AND the type L elongation is taken as the elongation at fracture. If the sample
does not fracture when the product testing machine travels to its end,
CHANGE the fixture spacing to 50 mm and the marking line spacing to 30 mm;
PERFORM test again; AND all the tensile performance tests of the same
sample shall be made using the same method.
The type H is tested in accordance with the method B in GB/T 328.9-2007, it
uses the dumbbell type I test piece which complies with GB/T 528, AND the
tensile speed is (250 ± 50) mm/min.
The arithmetic mean of the 5 test samples in the longitudinal or transverse
direction is calculated as the test result.
6.6 Heat treatment dimensional change rate
PERFORM test in accordance with GB/T 328.13 in the 80 °C ± 2 °C blast oven;
it is not allowed to stack them; AND it is remained at this constant temperature
for 24 h...