1.1 This specification covers ready-mixed concrete as defined in
3.2.2 (Note 1). Requirements for quality of readymixed concrete shall be either as stated in this specification or as ordered by the purchaser. When the purchaser’s requirements, as stated in the order, differ from those in this specification, the purchaser’s requirements shall govern. This specification does not cover the placement, consolidation, curing, or protection of the concrete after delivery to the purchaser. NOTE 1—Concrete produced by volumetric batching and continuous mixing is covered in Specification C685/C685M. Fiber-reinforced concrete is covered in Specification C1116/C1116M.
1.2 As used throughout this specification the manufacturer produces ready-mixed concrete. The purchaser buys readymixed concrete.
1.3 The values stated in either SI units, shown in brackets, or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.
1.4 The text of this specification references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the specification.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. (Warning—Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged use.2 )
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
ASTM C94/C94M-23 Referenced Document
ASTM C1064/C1064M Standard Test Method for Temperature of Freshly Mixed Portland Cement Concrete
ASTM C1077 Standard Practice for Agencies Testing Concrete and Concrete Aggregates for Use in Construction and Criteria for Testing Agency Evaluation*, 2024-01-01 Update
ASTM C1116/C1116M Standard Specification for Fiber-Reinforced Concrete*, 2023-08-01 Update
ASTM C1157/C1157M Standard Performance Specification for Hydraulic Cement*, 2023-09-01 Update
ASTM C1240 Standard Specification for Silica Fume Used in Cementitious Mixtures
ASTM C125 Standard Terminology Relating to Concrete and Concrete Aggregates
ASTM C138/C138M Standard Test Method for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete*, 2023-08-01 Update
ASTM C143/C143M Standard Test Method for Slump of Hydraulic-Cement Concrete