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FIELDS OF ACTIVITIES

Methods marked with a star * are not included in the accredited activity scope of the laboratory.

Physical properties of the soil

Water content according to LVS EN ISO 17892-1:2:2015

Water content according to GOST 5180-2015*

Bulk density according to LVS EN ISO 17892-2:2015

Bulk density according to GOST 5180-2015*

Particle density according to LVS EN ISO 12892-3:2016

Particle density according to GOST 5180-2015*

Particle size distribution according to LVS CEN ISO/TS 17892-4:2005

Particle size distribution according to GOST 12536-2014*

Plasticity indices according to:

  • Liquid (fall cone) and plastic limits according to LVS CEN ISO/TS 17892-12:2013
  • Liquid (Vasilyev balanced cone) and plastic limits according to GOST 5180-2015*
  • Liquid limits using Casagrande device

Permeability coefficient (for clayey and sand soil) according to LVS CEN ISO/TS 17892-11:2013

Permeability coefficient (for clayey and sand soil) according to GOST 25584-90*

Mechanical properties of the soil

Determination of one-dimensional consolidation (oedometer) according to LVS CEN ISO/TS 17892-5:2005

Determination of one-dimensional consolidation (oedometer) according to GOST 12248-2010*

Unconfined compression test according to LVS CEN ISO/TS 17892-7:2005*

Unconfined compression test  according to GOST 12248-2010*

Direct shear test according to LVS CEN ISO/TS 17892-10:2005

Direct shear test according to GOST 12248-2010*

 

Triaxial tests according to:

  • LVS CEN ISO/TS 17892-8:2005- Unconsolidated Undrained (UU)
  • LVS CEN ISO/TS 17892-9:2005 – Consolidated Undrained (CU)

Consolidated Drained (CD)

  • GOST 12248-2010* (all tests)

 

Swelling of the soil according to GOST 12248-2010, p.5.6.*

Linear shrinkage according to BS 1377, Part 2:1990*

Dabīgās nogāzes leņķis according to E. Tchapovsky method*

Maksimālā molekulārā ūdensietilpība according to E. Tchapovsky method *

 

Aggregates

Water content according to LVS EN 1097-5:2012*

Determination of loose bulk density according to LVS EN 1097-3:1998

Particle size distribution according to LVS EN 933-1:2013

Proctor compaction according to LVS EN 13286-2:2012/NAC:2015, p.7.1.; 7.2.; 7.4.; 7.5.

Determination of crushed and broken surfaces in coarse aggregate particle according to LVS EN 933-5:1998/NAC:2010

Permeability coefficient at maximum density according to:

  • The Latvian State Roads, Road Specifications 2017, Appendix 12.3.
  • GOST 25584-90, Appendix 5.

Organic matter content according to The Latvian State Roads, Road Specifications 2017, Appendix 12.5.

California bearing ratio CBR according to LVS EN 13286-47:2014*

Soil aggressiveness towards steel according to GOST 9.602-2005*

Soil aggressiveness towards concrete according to BS 1377-3:1990*

The degree of acidity of the soil by Bauman-Gaul according to LVS EN