Pumping has been used to transport SFRC on many projects. In general a mixture that will pump satisfactorily without fibers will pump with fibers. In pumping SFRC, the chute from the readymix truck should be 12” above the grate on the hopper. This will prevent the fiber from bridging the gaps in the grate and ensure a steady flow of concrete to the pump. The grate should never be removed from the hopper.
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