NatTest Lab · Soil and earthworks testing
Particle Size Distribution
Particle-size analysis determines the distribution of soil sizes. Sieve and hydrometer methods are selected for the sample’s coarse and fine fractions.
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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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Hydrometer Test
Hydrometer analysis determines the particle-size distribution of fine soil fractions from their settling beha…
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