  
Field Work - Borehole and test pit geotechnical investigations (เจาะสำรวจขั้นต้น)
- Standard Penetration tests
- Cone Penetration Test (ทดสอบ CPT)
- Plate Bearing Test (ทดสอบการต้านทานของดิน)
- Field density Test (ทดสอบความหนาแน่นในสนาม)
- Field CBR test (ทดสอบ CBR ในสนาม)
- Provision of on-site resident inspection and audits
- Operation of site testing laboratories
  
Laboratory Tests - No. 200 (75mm.) Sieve Tests
- Sieve Analyses of soil-aggregates
- Classification of soils for engineering purposes
- Moisture Content of soils tests
- Liquid Limit, Plastic Limit and Plasticity Index of soil tests
- Moisture-Density Relations of soils and soil-aggregate mixtures using Standard and Modified Rroctor Tests
- Minimum Index Density of soils for calculation of Relative Density
- CBR (California Bearing Ratio) tests of Laboratory-Compacted Soils
- Permeability of Soils Tests
- Unconfined Compressive Strength
- Los Angeles Abrasion Test
- Soundness of Aggregate tested by sodium sulphate or magnesium sulphate
- Specific Gravity and Absorption test
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