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EN 13286-7:2004

Current

Current

The latest, up-to-date edition.

Unbound and hydraulically bound mixtures - Part 7: Cyclic load triaxial test for unbound mixtures

Published date

28-01-2004

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Foreword
1 Scope
2 Normative references
3 Symbols and abbreviations
4 Principle
  4.1 Procedure for the study of the resilient behaviour
  4.2 Procedure for the study of permanent deformations
  4.3 Multi-stage procedure
5 Apparatus
  5.1 General
  5.2 Triaxial pressure chamber ('cell')
       5.2.1 General
       5.2.2 Chamber medium
       5.2.3 Top and bottom plate
  5.3 Loading device
       5.3.1 Method A - Variable confining pressure
       5.3.2 Method B - Constant confining pressure
  5.4 Pressure transducers
  5.5 Axial load transducer
  5.6 Response measuring equipment
  5.7 Other equipment
  5.8 Specimen cap and base
  5.9 Porous discs
  5.10 Semi-permeable filters
  5.11 Membrane
  5.12 Specimen-size measurement devices
  5.13 Balance
  5.14 Testing environment
6 Preparation
  6.1 General
  6.2 Set up of specimen and deformation measuring equipment
7 Test procedures for the study of the resilient behaviour
  7.1 Principle
  7.2 Method A: Variable confining pressure
      7.2.1 General
      7.2.2 Conditioning of the specimen
      7.2.3 Repeated loading for resilient testing
  7.3 Method B: Constant confining pressure
      7.3.1 General
      7.3.2 Conditioning of the specimen
      7.3.3 Repeated loading for resilient testing
8 Test procedures for the study of permanent deformation
  8.1 Principle
  8.2 Single Stage loading
      8.2.1 General
      8.2.2 Method A: Variable confining pressure
      8.2.3 Method B: Constant confining pressure
  8.3 Multi-stage loading
9 Test report
  9.1 General
  9.2 General data
  9.3 Conditioning of the specimen
  9.4 Resilient behaviour
  9.5 Permanent behaviour (single stage or multi-stage loading)
Annex A (informative) Measurement of specimen deformations
  A.1 Measurement system using LVDTs
  A.2 Measurement system using linear variable displacement
      transducers and rings with strain gages
Annex B (informative) Preparation methods
  B.1 General
  B.2 Specimen conditions
  B.3 Method 1 - Compaction by vibrocompression
  B.4 Method 2 - Compaction by vibrating hammer
Annex C (informative) Guidance on test procedures and ranking
                      of materials
  C.1 Purpose
  C.2 Experimental stress levels for permanent deformation tests
  C.3 Ranking of materials based on resilient behaviour tests
  C.4 Ranking of materials based on permanent deformation tests
      C.4.1 Procedure
      C.4.2 Interpretation
      C.4.3 Ranking
      C.4.4 Application
Annex D (informative) Suggested tables for presentation of test
                      results
Bibliography

This standard specifies two methods for determining the resilient and the permanent behaviour of unbound mixtures under conditions that simulate the physical conditions and stress states of these materials in layers beneath the surface layer of a pavement subjected to moving loads. The two test methods are provided according to the maximum size of particles: - Method A: The Variable Confining Pressure (VCP) method in which the cell pressure is cycled in phase with the axial load. This method applies to unbound mixtures in which all particles pass the 31,5 mm test sieve.

Committee
CEN/TC 227
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Current

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I.S. EN 13285:2010 UNBOUND MIXTURES - SPECIFICATIONS
EN 15732:2012 Light weight fill and thermal insulation products for civil engineering applications (CEA) - Expanded clay lightweight aggregate products (LWA)
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EN 13286-42:2003 Unbound and hydraulically bound mixtures - Part 42: Test method for the determination of the indirect tensile strength of hydraulically bound mixtures
EN 13286-40:2003 Unbound and hydraulically bound mixtures - Part 40: Test method for the determination of the direct tensile strength of hydraulically bound mixtures
PREN 13286-2 : DRAFT 1998 UNBOUND AND HYDRAULICALLY BOUND MIXTURES - TEST METHODS FOR LABORATORY REFERENCE DENSITY AND MOISTURE CONTENT - PROCTOR COMPACTION
EN 13286-43:2003 Unbound and hydraulically bound mixtures - Part 43: Test method for the determination of the modulus of elasticity of hydraulically bound mixtures
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EN 13286-47:2012 Unbound and hydraulically bound mixtures - Part 47: Test method for the determination of California bearing ratio, immediate bearing index and linear swelling
EN 13286-46:2003 Unbound and hydraulically bound mixtures - Part 46: Test method for the determination of the moisture condition value
EN 13286-41:2003 Unbound and hydraulically bound mixtures - Part 41: Test method for the determination of the compressive strength of hydraulically bound mixtures
EN 13286-5:2003 Unbound and hydraulically bound mixtures - Part 5: Test methods for laboratory reference density and water content - Vibrating table
EN 13286-4:2003 Unbound and hydraulically bound mixtures - Part 4: Test methods for laboratory reference density and water content - Vibrating hammer
EN 13286-3:2003 Unbound and hydraulically bound mixtures - Part 3: Test methods for laboratory reference density and water content - Vibrocompression with controlled parameters

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