Soil Mechanics Laboratory

List of services of the soil mechanics laboratory

Here you will find an overview of the laboratory and the field trials we offer. Please do not hesitate to contact us if you have any questions, we will be pleased to help!

  • Determination of the water content according to DIN 18121 – Part 1 or Part 2 (rapid method)
  • Determination of the state limits (yield and roll-out limits according to Atterberg) in accordance with DIN 18122 – Part 1
  • Determination of the shrinkage limit in accordance with DIN 18122 – Part 2 or by determining the change in volume and water content
  • Determination of grain density according to DIN 18124 (capillary pycnometer)
  • Determination of the dry bulk density according to DIN 52102 (pycnometer method)
  • Determination of water content, density of moist and dry soil, pore number and saturation number in accordance with DIN 18125
  • Determination of loss on ignition according to DIN 18128 (content of organic components)
  • Determination of lime content according to DIN 18129
  • Determination of water binding capacity (Enslin/Neff)
  • Determination of the loosest and densest storage according to DIN 18126 (impact fork or vibrating table test)
  • by sieving: dry sieving (Section 5.4.1) or sieving after wet separation of the fines (Section 5.4.2)
  • by sedimentation (section 6)
  • by sieving and sedimentation (section 7)
  • Determination of the water permeability coefficient using a compression-permeability device (Section 6)
  • Determination of the water permeability coefficient using a sampling nozzle, sample diameter up to 30 cm for non-cohesive soils and up to 15 cm for cohesive soils (Section 7)
  • Additionally: Determination of the hydraulic gradient
  • Determination of the Proctor density and the optimum water content in the Proctor pot (up to 30 cm diameter)
  • Determination of the density achievable with Proctor energy at a given water content (up to 30 cm diameter)
  • Determination of the deformation behaviour according to DIN 18135 (oedometer test, up to 100 cm diameter)
  • Determination of the settlement behaviour over time
  • Calculation of the permeability from the time settlement curve
  • Determination of swelling pressure, swelling heave and swelling heave over time
  • Determination of the uniaxial compressive strength on samples with a diameter of up to 11.5 cm
  • Subsequent determination of all relevant key figures (see determination of basic values)
  • in the frame shear tester: CU or UU test (fast) or CD test (slow), series of 3 individual tests, sample dimensions up to 50/50 cm; additionally: determination of residual shear strength
  • using a pocket penetrometer: up to 0.5 MPa
  • using a laboratory vane probe
  • in the triaxial compression test in accordance with DIN 18137: CU or UU test (with or without pore water pressure measurement) or CD test, series of 3 individual tests, sample diameter up to 10 cm; additionally: saturation and determination of the water permeability coefficient
  • Triaxial deformation test: sample diameter up to 10 cm, with or without pore water pressure measurement
  • Pin-hole test
  • Determination of the water absorption value according to DIN 18035
  • Analyses on asphalt concrete samples and other special tests
  • Uniaxial compression test (according to DGEG recommendation no. 1 of AK 19)
  • Splitting tensile test (according to DGEG recommendation no. 10 of AK 19)
  • Point load test (according to DGEG recommendation no. 5 of AK 19)
  • Determination of the shear strength of rock interfaces at constant normal force (on samples up to 10 cm edge length, including processing and casting of the test specimen)
  • Determination of the variability of rock samples in water according to DIN 4022 – Part 1
  • Testing of natural stone and aggregates in accordance with DIN 52 101 – 52 110

Dynamic analyses of soil samples with 20 cm sample diameter in the double-simple-shear device

  • Carrying out pile-driving or diaphragm soundings (with the heavy pile-driving probe if required)
  • Carrying out soundings with the vane probe

Carrying out plate load tests in accordance with DIN 18134

Carrying out and analysing geotechnical measurements:

  • Inclinometer
  • Extensometer
  • Pore water pressure transducer
  • Base pressure transducers
  • Load cells
  • and much more
  • Determination of density in the field using the sand replacement method (up to max. 15 litres of sample) or using a densitometer in accordance with DIN 18125 – Part 2
  • Borehole expansion tests according to Ménard (pressiometer)
  • Phicometer tests
  • Assessment of water, soils and gases attacking concrete in accordance with DIN 4030