Sand equivalent test

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The sand equivalent test quantifies the relative abundance of sand versus clay in soil. It is measured by standardized test methods such as ASTM D2419, AASHTO T176, and EN 933–8.^[1] The test is used to qualify aggregates for applications where sand is desirable but fines and dust are not. A higher sand equivalent value indicates that there is less clay‐like material in a sample.

During the test, material from the test specimen that can pass through a No. 4 sieve is mixed with solutions of calcium chloride, formaldehyde and glycerin in a cylinder. The content is then left for sedimentation. After about 20 minutes, the level of clay suspension and the sand level is read on the cylinder scale.

References

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↑ "Sand equivalent test set". Control-Groups.Com. Archived from the original on 8 January 2018. Retrieved 1 September 2013.

External links

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"Sand Equivalent". Pavement Interactive.
"Sand Equivalent Test" (PDF). Texas Department of Transportation. Tex-203-F.

Geotechnical engineering

Offshore geotechnical engineering

Investigation
and
instrumentation

Field (in situ)

Laboratory
testing

Soil

Types	Clay Silt Sand Gravel Peat Loam Loess
Properties	Hydraulic conductivity Water content Void ratio Bulk density Thixotropy Reynolds' dilatancy Angle of repose Friction angle Cohesion Porosity Permeability Specific storage Shear strength Sensitivity

Structures
(Interaction)

Natural features	Topography Vegetation Terrain Topsoil Water table Bedrock Subgrade Subsoil
Earthworks	Shoring structures Retaining walls Gabion Ground freezing Mechanically stabilized earth Pressure grouting Slurry wall Soil nailing Tieback Land development Landfill Excavation Trench Embankment Cut Causeway Terracing Cut-and-cover Cut and fill Fill dirt Grading Land reclamation Track bed Erosion control Earth structure Expanded clay aggregate Crushed stone Geosynthetics Geotextile Geomembrane Geosynthetic clay liner Cellular confinement Infiltration
Foundations	Shallow Deep

Mechanics

Forces	Effective stress Pore water pressure Lateral earth pressure Overburden pressure Preconsolidation pressure
Phenomena and problems	Permafrost Frost heaving Consolidation Compaction Earthquake Response spectrum Seismic hazard Shear wave Landslide analysis Stability analysis Mitigation Classification Sliding criterion Slab stabilisation Bearing capacity Stress distribution in soil

Numerical analysis
software

Related fields

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External links