Concrete mix design

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To assess the consistency of a concrete mix, a metal cone is filled in three equal layers and rodded between each layer to remove voids. Once filled, the cone is removed and used as a reference to measure how much the unrestrained concrete settles, or "slumps." If it settles 3-in., for instance, the mix has a slump of 3. - Fine Homebuilding Pour Concrete, Pouring Concrete, Concrete Mix Design, Act Math, Engineering Notes, Cement Design, Civil Engineering Design, Project Site, Concrete Driveways

To assess the consistency of a concrete mix, a metal cone is filled in three equal layers and rodded between each layer to remove voids. Once filled, the cone is removed and used as a reference to measure how much the unrestrained concrete settles, or "slumps." If it settles 3-in., for instance, the mix has a slump of 3. - Fine Homebuilding

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