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Cone Abrams complete with a funnel is designed to determine the mobility of concrete mix on dense and porous aggregates according to GOST 10181.1-81. It is designed to determine the time of flow of concrete mix to a diameter of 500 mm, as well as the total time of flow of concrete.
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Test:
The inverted cone is filled with freshly prepared concrete mixture without compaction. No later than 90 seconds after filling, the cone is lifted upwards. A stopwatch is started immediately. As the mixture reaches a diameter of 500 mm and after the pouring process is completed, the time is recorded. When the spreading is complete, the maximum diameter of the concrete mixture "spread" is determined.
Requirements:
The maximum diameter of the spray cone must be at least 700 mm, the time to reach the 500 mm diameter must be in the range of 3 to 6 seconds, and the total spreading time must be greater than 45 seconds.
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