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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Compression Testing. In the United States, the compressive strength of concrete
is established from compression tests on cylindrical specimens of 6-in. diameter
and 12-in. height (ASTM C39, "Compression Strength of Cylindrical Concrete ...
For normal-weight concrete, it can be computed (in psi) as: /, = 6.7X(/;f (with
compressive strength in psi units). As can be confirmed from the equation, the
tensile strength of concrete increases with its capacity in compression. As a
general rule ...
The capacity to bond individual units is measured by the tensile bond strength of
mortar, which is related to the force required to ... Increase in compressive
strength, which is the most important property of concrete, is not accompanied by