CMT 2

are refined from ores that have been extracted from the earth.

• Metals

• Polymers

• Non-metallic organic

materials are also extracted from the soil, also known as ceramics.

• Metals

• Polymers

• Non-metallic organic

consist of large molecules composed of repeating structural units connected by chemical bonds.

• Non-metallic organic

• Polymers

• Metals

have become of great interest in recent years owing to positive effects on thermal, mechanical, and durability properties of construction and pavements materials.

• Static loads

• Phase change materials (PCM)

• Dynamic loads

they are considered as dead loads, because they are unchanging and stay constant.

• Phase change materials (PCM)

• Static loads

• Dynamic loads

considered as live loads, that can change rapidly and abruptly in force and duration.

• Dynamic loads

• Tensile stresses

• Static loads

are created when forces pull on a member such as a cable and tend to increase its length.

• Shear stresses

• Tensile stresses

• Compressive stresses

push on a member such as a supporting column and tend to shorten it.

• Tensile stresses

• Shear stresses

• Compressive stresses

produce forces that work in opposite directions parallel with the plane of force, causing adjacent parts of a material to slide past one another.

• Shear stresses

• Strain

• Stress

is the intensity of internally distributed forces that resist a change in the form of a body.

• Strain

• Stress

• Hardness