Workability and Quality Control of Concrete

Fresh concrete must be produced with the properties required for its intended applications, for example, it must be workable enough to flow into formwork, and to be compacted. This book deals with the measurement of the flow properties of fresh concrete and the factors which affect its workability. Aspects of concrete mixes and control of manufacture to produce optimum properties which relate to workability are covered. <p>The importance of workability. Standard tests for workability. Flow properties of fresh concrete. Principles of measurement. The two-point workability test. Workability expressed in terms of two constants. Extremely low workability concretes. Factors affecting workability. Effect of mix proportions. Effect of chemical admixtures. Effect of cement replacements and fibres. Workability and practical processes. Specification of workability. Workability measurement as a means of quality control.</p>