BS EN 13491:2018
$198.66
Geosynthetic barriers. Characteristics required for use in the construction of tunnels and associated underground structures
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 66 |
This document specifies the characteristics of geosynthetic barriers, including polymeric geosynthetic barriers, clay geosynthetic barriers and bituminous geosynthetic barriers, when used as fluid barriers and separation layer in the construction of tunnels and associated underground structures, and the appropriate test methods to determine these characteristics. The intended use of these products is to control the leakage of fluid through the construction. This document is not applicable to geotextiles or geotextile-related products as defined in EN ISO 10318 1. This document provides for the assessment and verification of constancy of performance (AVCP) of the product to this European Standard including factory production control procedures. This document defines characteristics to be considered with regard to the presentation of performance. This document does not cover applications where the geosynthetic barrier is to be in contact with water that has been treated for human consumption. NOTE Where potable water is or can be in direct contact with the product, other relevant standards, requirements and/or regulations can be considered for the design.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 7 | 1 Scope 2 Normative references |
| 10 | 3 Terms, definitions and abbreviations 3.1 Terms and definitions |
| 11 | 3.2 Abbreviations |
| 12 | 4 Characteristics and corresponding methods of test 4.1 General 4.2 Types of application 4.2.1 General 4.2.2 Application 1: “Seepage water tunnel” |
| 14 | 4.2.3 Application 2: “Pressurised water tunnel” |
| 15 | 4.2.4 Application 3: “Cut and cover seepage water tunnel” |
| 16 | 4.2.5 Application 4: “Cut and cover pressure water tunnel” 4.3 Relevant characteristics |
| 22 | 4.4 Characteristics relevant to specific conditions of use 4.4.1 General 4.4.2 Gas permeability 4.4.3 Burst strength and elongation 4.4.4 Tear strength 4.4.5 Low temperature behaviour 4.4.6 Weathering 4.4.7 Resistance to wetting and drying |
| 23 | 4.4.8 Freeze–thaw cycle resistance 4.4.9 Resistance to root penetration 4.4.10 Chemical resistance 4.5 Release of dangerous substances 5 Assessment and verification of constancy of performance (AVCP) 5.1 General 5.2 Type testing 5.2.1 General |
| 24 | 5.2.2 Test samples, testing and compliance criteria |
| 25 | 5.2.3 Test reports 5.2.4 Shared other party results |
| 26 | 5.2.5 Cascading determination of the product type results |
| 27 | 5.3 Factory production control (FPC) 5.3.1 General 5.3.2 Requirements 5.3.2.1 General |
| 28 | 5.3.2.2 Equipment 5.3.2.3 Raw materials and components |
| 29 | 5.3.2.4 Traceability and marking 5.3.2.5 Controls during manufacturing process 5.3.2.6 Product testing and evaluation |
| 31 | 5.3.2.7 Non-complying products |
| 32 | 5.3.2.8 Corrective action 5.3.2.9 Handling, storage and packaging 5.3.3 Product specific requirements 5.3.4 Initial inspection of factory and of FPC |
| 33 | 5.3.5 Continuous surveillance of FPC 5.3.6 Procedure for modifications 5.3.7 One-off products, pre-production products (e.g. prototypes) and products produced in very low quantity |
| 35 | Annex A (normative)Durability of geosynthetic barriers A.1 General A.1.1 Service Life A.1.2 Type testing of durability A.1.2.1 General requirement A.1.2.2 Requirements for repeat testing |
| 36 | A.1.3 Mechanisms of degradation A.1.4 Use of rework material A.1.5 Recycled materials A.2 Weathering A.2.1 General |
| 37 | A.2.2 Direct tests and accelerated tests A.2.3 Period of exposure A.2.3.1 General |
| 38 | A.2.3.2 Requirements for periods of exposure up to one year A.2.3.3 Periods of exposure greater than one year A.3 Products used with a service life up to 5 years A.4 Other applications and service life of 25 and 50 years A.4.1 General |
| 39 | A.4.2 Tests for PE type of GBR-P |
| 40 | A.4.3 Tests for FPO-type of GBR-P |
| 41 | A.4.4 Tests for EPDM type of GBR-P A.4.5 Tests for GBR-P made of PVC-P |
| 42 | A.4.6 Tests for clay geosynthetic barriers (GBR-C) A.4.6.1 Geotextile components of a GBR-C A.4.6.2 Clay components of a GBR-C |
| 43 | A.4.6.3 Multi-component GBR-C |
| 44 | A.5 Durability tests on GBR-P A.5.1 Introduction A.5.2 Microbiological resistance |
| 46 | A.5.3 Resistance to environmental stress cracking |
| 47 | A.5.4 Resistance to leaching |
| 50 | A.5.5 Resistance to oxidation/thermal ageing |
| 52 | A.6 Evaluation tests on GBR-P and GBR-C A.6.1 General A.6.2 Evaluation by comparison of tensile properties A.6.3 Evaluation by comparison of oxidative induction time (OIT) values A.6.4 Evaluation by change in mass |
| 53 | A.6.5 Evaluation by change in water permeability A.7 Durability tests on GBR-B A.7.1 Introduction A.7.2 Microbiological resistance |
| 54 | A.7.3 Resistance to environmental stress cracking A.7.4 Resistance to leaching |
| 55 | A.7.5 Resistance to oxidation/thermal ageing |
| 56 | A.7.6 Weathering resistance |
| 57 | A.8 Evaluation tests on GBR-B A.8.1 General A.8.2 Evaluation by comparison of tensile properties A.8.3 Evaluation by change in mass A.8.4 Evaluation of water permeability |
| 58 | A.8.5 Evaluation of flow resistance at elevated temperature A.8.6 Evaluation of flexibility at low temperature A.8.7 Evaluation of ring and ball softening point temperature |
| 59 | Annex ZA (informative)Relationship of this European Standard with Regulation (EU) No. 305/2011 |
