Week 4- Meshing of Backdoor Challenge

Q1: Why Structural steel is used in the construction of Industrial sheds? 
Q2: What is the aggregate crushing value formula? 
Q3: What are the grades of steel available in the market? What does “D” stand for?
Q4: Define specific gravity. How does specific gravity affect material properties?
Q5: What are the properties to be considered for lightweight aggregate
Q6: What are the tests conducted on aggregate?
Q7: What is rapid hardening cement?