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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. What is the difference between corrected and uncorrected weight in a concrete mix design? A. The uncorrected weight represents the initial calculated material weights from the mix design, without any adjustments. The corrected weight includes adjustments for moisture content in the aggregates and other factors that impact batching. These corrections ensure the proper water-cement ratio and that the concrete meets the desired workability, strength, and durability. ACI 304 offers guidelines on batching and the necessary corrections to achieve consistency and quality during concrete production. References: ACI 211.1-22; ACI 304.2R-17; ACI 301-20; ASTM C94/C94M-21; ASTM C566-19 Topics in Concrete: Mixture Proportioning; Concrete Fundamentals; Aggregate
Q. What is the difference between corrected and uncorrected weight in a concrete mix design?
A. The uncorrected weight represents the initial calculated material weights from the mix design, without any adjustments. The corrected weight includes adjustments for moisture content in the aggregates and other factors that impact batching. These corrections ensure the proper water-cement ratio and that the concrete meets the desired workability, strength, and durability. ACI 304 offers guidelines on batching and the necessary corrections to achieve consistency and quality during concrete production.
References: ACI 211.1-22; ACI 304.2R-17; ACI 301-20; ASTM C94/C94M-21; ASTM C566-19
Topics in Concrete: Mixture Proportioning; Concrete Fundamentals; Aggregate
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