BSI PD ISO/TS 13434:2020

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Geosynthetics. Guidelines for the assessment of durability

Published By	Publication Date	Number of Pages
BSI	2020	52

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Categories: 59.080.70 - Geotextiles, BSI

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Description

This document provides guidelines for the assessment of the durability of geosynthetics, the object of which is to provide the design engineer with the necessary information, generally defined as changes in material properties or as partial safety factors, to ensure that the expected design life of a geosynthetic can be achieved with confidence.

This document is not applicable to products designed to survive for only a limited time, such as erosion-control fabric based on natural fibres.

This document is applicable to the durability of the geosynthetics and not to the durability of the geotechnical structure as a whole.

NOTE

The calculation of reduction factors for soil reinforcement applications is described in ISO/TR 20432 .

PDF Catalog

PDF Pages	PDF Title
2	National foreword
8	Foreword
9	1 Scope 2 Normative references 3 Terms, definitions, symbols and abbreviated terms 3.1 Terms and definitions 3.2 Symbols
10	3.3 Abbreviated items
11	4 Generalized procedure 4.1 General
12	4.2 Available and required properties 4.2.1 Condition of acceptability 4.2.2 Development of the required and available properties with time
14	4.3 Design life 4.4 Margin of safety 4.5 End of life (function)
15	4.6 Durability study 5 Constituents of geosynthetics 5.1 Types of geosynthetic 5.1.1 Polymeric durability considerations
16	5.1.2 Geotextiles 5.1.3 Geosynthetic barriers or polymeric and bituminous geosynthetic barriers 5.1.4 GBR-C 5.1.5 Geoblankets (GBL)
17	5.1.6 Geogrids 5.1.7 Geonets 5.1.8 Geocells 5.1.9 Geomats 5.1.10 Geocomposites 5.1.11 Geofoam 5.1.12 Geospacers 5.2 Individual polymer types 5.2.1 General
18	5.2.2 Polypropylene (PP) 5.2.3 Flexible polypropylene (fPP) 5.2.4 Polyethylene (PE) 5.2.5 Polyesters (i.e. PET, PEN) 5.2.6 Flexible polyvinyl chloride (PVC-P)
19	5.2.7 Polyamides (PA) 5.2.8 Ethylene propylene diene monomer (EPDM) 5.2.9 Ethylene interpolymer alloy (EIA) 5.2.10 Chlorinated polyethylene (CPE) 5.2.11 Chlorosulfonated polyethylene (CSPE) 5.2.12 Bitumen
20	5.2.13 Aramid 5.2.14 Polyvinyl alcohol (PVAL) 5.2.15 Polystyrene (PS) 5.2.16 Typical physical properties of polymeric geosynthetics
21	5.3 Manufacturing process 5.3.1 General 5.3.2 Geotextiles
22	5.3.3 Geosynthetic barriers
23	5.3.4 Geogrids 5.3.5 Geonets 5.3.6 Geocomposites 5.3.7 Geocells 5.3.8 GBR-C 5.4 Recycled and reworked materials
24	5.5 Additives, stabilizers, fillers and reinforcement scrims 5.5.1 General 5.5.2 Antioxidants 5.5.3 Acid scavengers 5.5.4 Metal ion deactivators
25	5.5.5 UV stabilizers 5.5.6 Plasticizers 5.5.7 Lubricants 5.5.8 Mineral fillers 5.5.9 Scrims 6 Environmental factors that may lead to degradation 6.1 The environment above ground
26	6.2 The environment below ground
27	6.3 Chemical and biological effects on a geosynthetic 6.3.1 General
28	6.3.2 Hydrolysis of PET and PA 6.3.3 Oxidation of PE and PP 6.3.4 Biochemical attack 6.3.5 Chemical effects on other geosynthetic barriers
30	6.4 Effects of load and mechanical damage 6.4.1 Tensile load: Creep and creep-rupture 6.4.2 Synergy of tensile load with environmental effects (environmental stress cracking)
31	6.4.3 Effect of mechanical load on weathering and oxidation 6.4.4 Loading during installation: Mechanical damage 6.4.5 Normal pressure: Compressive creep and penetration 6.4.6 Abrasion and dynamic loading
32	7 Evidence of the durability of geosynthetics 7.1 Historical development 7.2 Empirical evidence of durability from geosynthetics extracted from the soil 7.2.1 Geotextiles
33	7.2.2 Geosynthetic barriers
35	7.2.3 Geogrids
36	7.3 Summary 8 Procedure for assessment of durability 8.1 General 8.1.1 Need for testing 8.1.2 Testing concepts for lifetime index tests
37	8.1.3 Scope of durability assessment 8.2 Procedure 8.2.1 Material 8.2.2 Function and application 8.2.3 Environment
38	8.2.4 Mechanism of degradation 8.2.5 Design life 8.2.6 The “end-of-life” criterion 8.3 Degradation during storage and installation 8.3.1 Weathering
39	8.3.2 Mechanical damage 8.4 Short-, medium-, and long-term applications
40	8.5 Assessment of long-term durability 8.5.1 General 8.5.2 Evidence from service
41	8.5.3 Accelerated testing
45	8.6 Prediction of durability 8.6.1 Statement of the durability 8.6.2 Level of confidence 8.7 Planning for future inspection
47	Bibliography

Additional information

Status	Confirmed
Pages	52
Publication Date	2020-11-02
ISBN	978 0 539 04964 0
Standard Number	PD ISO/TS 13434:2020
Title	Geosynthetics. Guidelines for the assessment of durability
Identical National Standard Of	ISO/TS 13434
Replaces	DD ISO/TS 13434:2008
Descriptors	Geotextiles, Ageing (materials), Durability, Ageing tests, Soils, Chemical-resistance tests, Failure (mechanical), Chemical reactions, Thermoplastic polymers, Strength of materials, Endurance testing, Environment (working), Degradation, Construction materials, Environmental testing, Geosynthetic materials, Life (durability), Performance testing
Publisher	BSI
Committee	B/553
ICS Codes	59.080.70 - Geotextiles

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BSI PD ISO/TS 13434:2020

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