Design and Control of Concrete Mixtures

A comprehensive technical reference regarding the design and control of concrete mixtures, covering everything from raw materials to final construction practices. It systematically explores the composition of concrete, detailing the crucial role of the cementitious paste, various types of portland cement and supplementary cementing materials (such as fly ash and slag), and the necessary physical characteristics of fine and coarse aggregates. Extensive sections are dedicated to governing the long-term performance and durability of hardened concrete, emphasizing the critical influence of the water-to-cementitious materials ratio on achieving adequate strength, low permeability, and resistance to environmental stressors like freeze-thaw cycles and chemical attacks. The material also outlines essential construction methods, including the use of specialized admixtures, protocols for batching, handling, and consolidation via vibration, and specific precautions needed for hot and cold weather concreting. Finally, the guide details numerous quality control and testing protocols used to measure characteristics such as consistency, air content, and compressive strength, often referencing industry standards.

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