NatTest Lab · Soil and earthworks testing
Hydrometer Test
Hydrometer analysis determines the particle-size distribution of fine soil fractions from their settling behaviour. It complements sieve analysis.
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Atterberg Limits Tests
Atterberg limits testing assesses the consistency and plasticity of fine-grained soil. Results support soil c…
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Direct Shear Test
Direct shear testing measures soil resistance along a defined shear plane under an applied normal load. Resul…
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Field Density Test (FDT)
Field density testing measures the density achieved in placed soil or fill. Results can be compared with the …
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In-Situ California Bearing Ratio (CBR) Test
In-situ CBR testing measures resistance to penetration in pavement support materials. Results support assessm…
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