Geotecnical laboratory tests

The geotechnical laboratory is authorized by the Ministry of Infrastructure and Transport to carry out testing and certification activities for geotechnical tests on land and on site, pursuant to Article 59 of Presidential Decree n. 380 of 06/06/2001.

The tests are performed in compliance with national and international standards and the test certificates are approved by the Servizio Tecnico Centrale del Consiglio Superiore dei Lavori Pubblici.

Physical, volumetric and granulometric characteristics

  • Water content in the natural state (UNI CEN ISO / TS 17892-1)
  • Mass density of fine-grained soils (UNI CEN ISO / TS 17892-2)
  • Volume density of solid granules (UNI CEN ISO / TS 17892-3)
  • Granulometric analysis for sedimentation (aerometry) and for sieving (ASTM D 422; Recommendations AGI 1994)
  • Atterberg limits (CNR-UNI 10014)
  • Limite di ritiro (CNR-UNI 10014; BS 1377: Part 2: 1990 - Par. 6.5)
  • Relative density (ASTM D 4253 - 93; ASTM D 4254 - 91)
  • Sample opening and description

Chemical determinations

  • Content in carbonates (DM 13/09/99 - Method V.1)
  • Sulphate content (BS 1377: Part 3: 1990)
  • Content in organic substances (BS 1377: Part 3: 1990)
  • Determination of the pH value (D.M. 11/05/1992)

Mechanical tests

  • Non-confined compression test on fine-grained soils - ELL (UNI CEN ISO / TS 17892-7)
  • Edometric test with load increments (UNI CEN ISO / TS 17892-5)
  • Determination of swelling pressure - ISP (Recommendations AGI 1994)
  • Determination of swelling deformation - ISS (Recommendations AGI 1994)
  • Direct cutting with Casagrande device (UNI CEN ISO / TS 17892-10)
  • Ring cutting with Hovrslev apparatus (BS 1377: Part 7: 1990)
  • Unconsolidated non-drained triaxial compression test - UU (UNI CEN ISO / TS 17892-8)
  • Non-drained consolidated triaxial compression test - CIU (UNI CEN ISO / TS 17892-9)
  • Consolidated drained triaxial compression test - CID (UNI CEN ISO / TS 17892-9)
  • CBR test (ASTM D 1883-94)
  • Compression resistance test (UNI EN 12504 - 1; UNI EN 12390 - 3)
  • Permeability test with variable load permeameter (UNI CEN ISO / TS 17892-11)
  • Permeability test with permeameter at constant load (UNI CEN ISO / TS 17892-11)
  • Permeability test in edometric cell (UNI CEN ISO / TS 17892-11)
  • Permeability test in triaxial cell (UNI CEN ISO / TS 17892-11)
  • Compaction test (ASTM D698-91; ASTM D1557-91)
  • Earth-lime / cement mixtures
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