GB/T 26518-2023Reinforced and composite polymeric sheets for water proof (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.

This document replaces GB/T 26518-2011 "Polymer Reinforced Composite Waterproof Sheet". Compared with GB/T 26518-2011, except for the structure In addition to adjustments and editorial changes, the main technical changes are as follows.

---Changed the minimum thickness of the sheet (see 5.1 Table 1, 4.1.1 Table 1 of the 2011 version);

---Changed the requirements for impermeability and composite strength (see 5.3.1 Table 2, 4.3.1 Table 2 of the 2011 version);

---Added requirements and test methods for joint peel strength, joint water impermeability, mold corrosion resistance, and ash content (see 5.3.1 Table 2 and 6.3.1);

---Changed the impermeability pressure index and test method (see 5.3.4 Table 4 and 6.3.3.3, 2011 version of 4.3.3 Table 4 and 5.5.3);

--- Added limit value requirements and test methods for the total content of hazardous substances benzene, toluene and xylene in supporting binders (see 5.3.4 Table 4 and 6.3.3.6, 6.3.3.7).

1 Scope

This document stipulates the specifications, dimensions and technical requirements of polymer-reinforced composite waterproof sheets (hereinafter referred to as sheets), and describes the corresponding tests. Methods, stipulates inspection rules and contents of marking, packaging, transportation and storage, and also provides product classification and technical regulations to facilitate technical regulations. mark.

This document is applicable to polyethylene resin or ethylene-vinyl acetate copolymer as the core layer material, adding antioxidants, dispersants and other additives. Made of extruded, calendered, double-sided hot-applied composite woven or non-woven fabrics, used for roofs, interiors, walls, hydraulic and water conservancy facilities, underground and other buildings and Waterproofing, moisture-proofing of structures, and manufacturing and testing of waterproofing sheets for various greening and planting roofs.

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document.

GB/T 328.21 Test methods for building waterproofing membranes Part 21: Seam peeling properties of polymer waterproofing membranes

GB/T 528 Determination of tensile stress and strain properties of vulcanized rubber or thermoplastic rubber

GB/T 529 Determination of tear strength of vulcanized rubber or thermoplastic rubber (trouser-shaped, right-angled and crescent-shaped specimens)

GB/T 1690 Test method for liquid resistance of vulcanized rubber or thermoplastic rubber

GB/T 1741-2020 Determination of paint film mold resistance

GB/T 3512 Hot air accelerated aging and heat resistance test of vulcanized rubber or thermoplastic rubber

GB/T 6682 Specifications and test methods for water used in analytical laboratories

GB/T 9345.1-2008 Determination of ash content of plastics Part 1: General method

GB/T 9758.1-1988 Determination of "soluble" metal content in paints and varnishes - Part 1: Determination of lead content flame Atomic absorption spectrometry and dithizone spectrophotometry

GB/T 9758.4-1988 Determination of "soluble" metal content in paints and varnishes - Part 4: Determination of cadmium content Flame Atomic absorption spectrometry and polarography

GB/T 9758.6 Determination of "soluble" metal content in paints and varnishes Part 6: Total chromium content in the liquid part of paints Determination of flame atomic absorption spectrometry

GB/T 9758.7 Determination of "soluble" metal content in paints and varnishes Part 7: Pigment part of paints and water dilutable Determination of mercury content in liquid parts of paint by flameless atomic absorption spectrometry

GB/T 16777-2008 Test methods for building waterproof coatings

GB/T 18173.1 Polymer waterproof materials Part 1: Sheets

GB 18583-2008 Limits of Hazardous Substances in Adhesives for Interior Decoration Materials

GB/T 35468 Root puncture resistant waterproofing membrane for planted roofs

JC/T 2377-2016 Polymer cement binder for polyethylene polypropylene waterproofing membrane

JJG 139-2014 Calibration regulations for tension, pressure and universal testing machines