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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2.2.2 Based on Size The size of aggregate particles varies, ranging between that
of dust and 2 in. (50.8 mm) — and may be higher in special cases. Based on the
maximum size of particles in a sample, aggregates are divided into two groups: ...
When the aggregate particles are not strong enough to withstand the stresses
resulting from the internal expansion, they crack or fail. A porous stone is less
resistant to cycles of freezing and thawing than a stone of dense crystalline
It can thus be concluded that the strength of this concrete remains independent of
the strength of the aggregate. However, when the strength of ... Instead, the
aggregates we use consist of particles that are big, medium, and fine — like a