Efflux index of fine aggregates EN 933-6


Used to measure the efflux index of fine aggregates (shape and angularity), having dimensions up to 4 mm. The efflux index of an aggregate is the required time in seconds of a known volume of aggregates to flow from a known opening. The unit is basically formed by a container, one polycarbonate funnels having 85 mm height, 60° conical part, which end has dia. 12 mm., base support, valve, decanter, tamper, funnel.



  • EN 933-3 Tests for geometrical properties of aggregates. Assessment of surface characteristics. Flow coefficient of aggregates

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