I.S. EN ISO 13431:1999

National foreword
Foreword
1 Scope
2 Normative references
3 Definitions
4 Specimens
  4.1 Sampling
  4.2 Number of specimens
  4.3 Dimensions of specimens
  4.4 Conditioning
5 Determination of tensile creep behaviour
  5.1 Principle
  5.2 Apparatus
  5.3 Procedure
6 Determination of tensile creep rupture
  6.1 Principle
  6.2 Apparatus
  6.3 Procedure
7 Calculations (for use of TRW specimens)
8 Test report
Figure 1 - Specimen details
Figure 2 - Definition of contraction
Figure 3 - Tensile creep recording apparatus
Figure 4 - Typical level arm loading system

Defines a method for determining the tensile creep and creep rupture behaviour of geotextile-related and geotextile products in an unconfined situation. Limited to those applications and products where the risk of collapse of a structure due to premature strain/time or to failure variation of the reinforcement under constant load is of essential importance. The test is not considered to be a routine quality control test.