This standard specifies classification, requirements, test methods, inspection rules as well as marking, packaging, storage and transportation of pre-applied waterproofing sheet.
This standard is applicable to the waterproofing sheet mainly made of plastic, bitumen and rubber, bonded with post-cast concrete and provided with self-adhesive glue on one side and non-stick or visbreaking material treated glue surface.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 328.2 Test Methods for Building Sheets for Waterproofing - Part 2: Bitumen Sheets for Waterproofing - Visible Defects
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 328.8 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 - Watertightness
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 328.15 Test Methods for Building Sheets for Waterproofing - Part 15: Plastic and Rubber Sheets for Waterproof - Foldability at Low Temperature
GB/T 328.18 Test Methods for Building Sheets for Waterproofing - Part18: Bitumen Sheets for Waterproofing - Resistance to Tearing (Nail Shank)
GB/T 328.20 Test Methods for Building Sheets for Waterproofing - Part 20: Bitumen Sheets for Waterproofing - Resistance to Peeling of Joints
GB/T 328.25-2007 Test Methods for Building Sheets for Waterproofing - Part 25: Bitumen Plastic and Rubber Sheets for Waterproofing - Resistance to Static Loading
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 528 Rubber, Vulcanized or Thermoplastic - Determination of Tensile Stress - Strain Properties
GB 12952-2011 Polyvinyl Chloride Plastic Sheets for Waterproofing
GB/T 16422.2 Plastics - Methods of Exposure to Laboratory Light Sources - Part 2: Xenon-arc Sources
CJ/T 234-2006 High Density Polyethylene Geomembrane for Landfills
JG/T 245 Vibrating Table for Concrete Test
3 Terms and Definitions
For the purposes of this document, the following terms and definitions apply.
3.1
pre-applied waterproofing sheet
waterproofing sheet composed of main material, self-adhesive glue, surface anti-sticking (visbreaking) protective layer (excluding sheet overlapping area) and isolation material (if required), which is bonded with post-cast concrete for the purpose of preventing water moving between layer
3.2
anti water moving between layer
the performance of preventing water fleeing on bonding interface under hydraulic action, which is realized via the perfect bonding of waterproof layer and base course
4 Classification
4.1 Type
According to main material, products are classified in plastic waterproofing sheet (Type P), bitumen base PY waterproofing sheet (Type PY) and rubber waterproofing sheet (Type R).
4.2 Specification
Thickness of pre-applied waterproofing sheet product:
Type P: full thickness of sheet is 1.2mm, 1.5mm or 1.7mm.
Type PY: 4.0mm.
Type R: full thickness of sheet is 1.5mm or 2.0mm.
Other specifications are determined through negotiation between the Supplier and the Demander.
4.3 Designation
Products are denoted in the order of No. of this standard, type, thickness/full thickness of main material and area.
Example 1: Plastic pre-applied waterproofing sheet of 50m2 in area, 1.2mm in full thickness and 0.9mm in main material thickness is denoted as:
GB/T 23457-2017 The following standards are cited：
