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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- ^ Page Module:Citation/CS1/styles.css has no content."Sand equivalent test set". Control-Groups.Com. Archived from the original on 8 January 2018. Retrieved 1 September 2013.
External links
- Page Module:Citation/CS1/styles.css has no content."Sand Equivalent". Pavement Interactive.
- Page Module:Citation/CS1/styles.css has no content."Sand Equivalent Test" (PDF). Texas Department of Transportation. Tex-203-F.
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