GB/T 18173.1-2012 in English
VALIDPolymer water-proof materials - Part 1：Water-proof sheet
- Issued on:2012-09-03
- Implemented on:2013-06-01
- File Format:PDF
- Delivery:Via email within 5 business days
$359.00
GB18173的本部分规定了高分子防水材料片材的术语和定义、分类与标记、要求、试验方法、检验规则以及标志、包装、运输与贮存等。
本部分适用于以高分子材料为主材料,以挤出或压延等方法生产,用于各类工程防水、防渗、防潮、隔气、防污染、排水等的均质片材、复合片材、异形片材、自粘片材、点(条)粘片材等。
Introduction
Background of Standard Revision and Technological Evolution
Compared with the 2006 version, the 2012 version of the standard mainly makes the following technical adjustments:
| Revision Dimensions | 2006 Version | 2012 Version | Technical Significance |
|---|---|---|---|
| Material Classification | 4 types of homogeneous sheets | 5 new types such as self-adhesive sheets and special-shaped sheets | Adapt to the development of new waterproof materials |
| Performance Indicators | FS2 composite strength 0.8MPa | Increased to 1.5MPa | Enhanced engineering reliability |
| Test method | No special-shaped sheet test specified | Added 6 tests such as drainage cross-sectional area | Improved special structure evaluation system |
Analysis of core performance indicators
Comparison of key parameters of homogeneous sheets
EPDM sheet (JL1 type):
- Tensile strength at room temperature ≥7.5MPa (increased by 12%)
- No cracks at low temperature bending at -40℃
- No cracks under ozone aging (500ppb) conditions
Innovation requirements for composite sheets
FS2 composite sheets have a new mandatory requirement of composite strength between the surface layer and the core layer ≥ 1.5MPa, and are tested using the special fixture in Appendix E to ensure interlayer bonding reliability.
Application Specifications of New Materials
Key Points for Self-Adhesive Sheet Construction
| Performance Items | Standard Values | Test Methods |
|---|---|---|
| Adhesion Durability | ≥20min | GB/T 4851 |
| Peel Strength (with Cement Board) | ≥1.0N/mm | Appendix D |
Drainage Design for Special-Shaped Sheets
When the shell height is ≥8mm, the calculation formula for the drainage cross-sectional area per extended meter is: S=(L×h)-(S0×n), which must be guaranteed to be ≥30cm²/m.
Project Implementation Suggestions
- Selection basis: For exposed projects, JL1 materials with an ozone aging index of 500ppb are preferred
- Acceptance focus: FS2 composite sheets must undergo on-site composite strength spot checks
- Storage specifications: Do not stack more than 5 rolls to avoid contact with organic solvents
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