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The sand equivalent test indicates the relative proportions of clay-like fines in granular soils and aggregates. Â The manual shaker works best for use on the job site to give more uniform shaking action. Uniform shaking action pushes the top frame by a simple stroke of the hand. The portable unit features a removable wooden case. As well as two separate electronic timers to increase accuracy and ease of operation compared to a spring-type timer. The consistent, repeatable oscillation of the apparatus eliminates operator-cause variation. Â Sand equivalent stock solution works with distilled water in the ratio of 85ml solution per gallon of water. Made from anhydrous calcium chloride, glycerine, and formaldehyde.
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