Civil Engineering Materials
This book deals with properties, applications and analysis of important materials of construction/civil engineering. It offers full coverage of how materials are made or obtained, their physical properties, their mechanical properties, how they are used in construction, how they are tested in the lab, and their strength characteristics--information that is essential for material selection and elementary design. Contains illustrative examples and tables and figures from professional organizations. Considers all common materials of civil engineering/construction--and looks at each in depth: e.g., physical properties, mechanical properties, code provisions, methods of testing, quality control, construction procedures, and material selection. Discusses laboratory testing procedures for selected tests--provides step-by-step descriptions of laboratory test procedures to determine properties of materials. All test procedures are based on relevant ASTM specification. For Civil Engineers, Construction Engineers, Architects, and Agricultural Engineers.
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Several variables affect the characteristics of concrete during the mixing stage,
and a number of parameters pertaining to fresh concrete affect the properties of
hardened concrete. During the mixing stage, fresh concrete is plastic and fluid,
Even though steam curing allows for faster gain in strength, it may decrease the
28-day strength by as much as 30 percent. 3.8 PROPERTIES OF HARDENED
CONCRETE The properties of fresh concrete just described are of interest for just
Some admixtures are added to modify the workability characteristics and the
setting (and hydration) rate of fresh concrete, whereas others change the
properties of concrete both at the mixing and hardened stages. Normally, the use
of one or ...