Civil Engineering Materials Properties, Slides of Civil Engineering

Download Civil Engineering Materials Properties and more Slides Civil Engineering in PDF only on Docsity! 1.1 Civil Engineering Material Concepts Engineering Properties Stress es Steel _-—-~ Concrete ee e Strain HOWARD R. HUGHES | IN] V ‘COLLEGE OF ENGINEERING Categories Civil Engineering Materials Conventional Materials Conventional Concrete Steel Timber/wood Alternate Materials Bamboo Adobe Composite Materials Conventional concrete with carbon fiber Engineered wood Smart Materials Smart Concrete Selection Location Type of Building Scale Service life Sustainability Structural frames Concrete framed Steel frame d Wood frame d Selection Type of project Durability Service Life Pavement Asphalt Concrete Portland cement concrete SELECTION Se le cti on c on sid er ati on s Economic factors Mechanical properties Non-mechanical properties Production Construction Aesthetics Sustainability Variability Selection N on -M ec ha ni ca l Density Density Unit Weight Specific Gravity Thermal Expansion Contraction Surface Characteristics Selection Material Aggrega te Concrete Aggregate Asphalt Aggregate Concrete Cast Precast Grout Cellular Asphalt Hot-mix Cold-mix Wood Lumber Plywood OBS Steel Shapes Re-bar Cold- formed Masonry Clay Concrete Block Properties Civil Engineering Materials Physical Density Conductivity Combustibility Mechanical Yield Ductility Hardness Toughness Chemical Corrosion resistance Hydroscopic PH resistance Dimensional Size Shape Stress- Strain Stress Strain Curve for Mild Steel r Ultimate—, | _ siress field stress . Yield stress. Fracture ® Propertional~ ” limit — x J Perfect Strain ' Necking Sy ky ote Linear ‘Plasticity hardening or yielding region Stress Strain Curve of Concrete The first portion of curve, to about 40% of the ultimate strength »Crushing f.’, can be considered linear. Stress- Strain Stress 0.85fc’ ¢The lower the strength of concrete the greater will be the failure strain 0.0028 to 0.0045, generally 0.003 Strain Stress-Strain Property Material Modulus of Elasticity Poisson's Ration Concrete 14-40 0.11-0.21 Steel 200 0.27 Wood 6-15 0.29-0.45