HW 2 CE Materials, Due Feb 27 1. Please list at least five non-metallic inorganic materials. 2. List the factors to be considered when selecting a construction material? 3. What is the difference between elastic behavior and plastic behavior, and which limit defines the transition between elastic and plastic behavior? 4. What is the difference between ductile materials and brittle materials? 5. What is the difference between impact strength and fatigue strength? 6. What factor describes the overall thermal performance of a building assembly? 7. What is the difference between thermal Conductivity and thermal Conductance? 8. What is the most common form of chemical degradation? 9. What stages in a material\'s life cycle are considered when calculating embodied energy? 10. What is the definition of Environmentally Preferable Products (EPPs)? 11. What inputs and outputs does a Life Cycle Analysis (LCA) of a material consider? 12. Please give examples of renewable building materials. 13. What is the difference between post-consumer recycled materials and post industrial recycled content materials?
1) silicon carbide,cement,concrete,China clay and quartz chips are the non metallic inorganic materials.
2)following factors should be considered while selecting a construction material
a. Strength
b.durability
c.workability
d.sustainibility
e.non toxic
f.non hazardous
g.economical
3)elastic behaviour- If on applying and releasing load on any material it regains its original shape then these behaviour is called elastic behaviour
Plastic behaviour-If on applying and realeasing load if material does not regains it\'s original shape then such behaviour is termed as plastic behaviour.
Elastic limit act as a transition between elastic behaviour and plastic behaviour
4)ductile material- The material which has long plastic zone is called ductile material.
Eg.-mild steel
Brittle material- the material which has very short plastic region or no plastic zone is called brittle material.
Eg.-rubber
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