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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Concrete (in compression) is an example of a material that will recover its original
size and shape only when the applied stresses are low; when the stress exceeds
a certain limit and then is brought back to zero, the shape and size are ...
This value is measured from the origin — the point of intersection of the stress-
strain curve with the strain axis — and marked on the strain axis. Then a line
parallel to the initial straight-line part of the diagram is drawn from this offset point
maximum stress (strength) e'( : strain at/'c e(.„ : maximum strain (ultimate strain)
Figure 3.29 shows a typical stress-strain diagram for concrete in compression. It
constitutes an elastic range at the onset, followed by a nonlinear or inelastic ...