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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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Home > Tools > Frequently Asked Questions
Q. How is the slump test made? A. In accordance with ASTM C143, a mold in the form of a frustum of a cone is filled with the freshly mixed concrete in three layers, each layer being rodded with a bullet-pointed rod. After the mold has been filled, the concrete is struck off and the mold lifted vertically and slowly. The amount by which the mass settles is termed the slump. A low slump indicates a dry consistency and a high slump, a wet consistency. References: SP-1(02); ACI 238.1R-08; ASTM C143 Topics in Concrete: Concrete Fundamentals; Testing of Concrete
Q. How is the slump test made?
A. In accordance with ASTM C143, a mold in the form of a frustum of a cone is filled with the freshly mixed concrete in three layers, each layer being rodded with a bullet-pointed rod. After the mold has been filled, the concrete is struck off and the mold lifted vertically and slowly. The amount by which the mass settles is termed the slump. A low slump indicates a dry consistency and a high slump, a wet consistency.
References: SP-1(02); ACI 238.1R-08; ASTM C143
Topics in Concrete: Concrete Fundamentals; Testing of Concrete
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