TOPIC 3: STEEL

Steel is the general name given to a large family of ___________with __________ and a variety of different elements

• limestone, alloy of iron

• alloy of iron, carbon

• silicon , limestone

• plastic, carbon

Structural steel can be classified into 3 categories:

• Cold-formed Structure, Framed Structure, Suspension-type structure

• Framed Structure, Prestressed-type structure, Shell-type structure

• Suspension-type structure, Cold-formed Structure, Prestressed-type structure

• Framed Structure, Suspension-type structure, Shell-type structure

___________ contain either silicon or manganese or any element with deliberate alloying additions

• Carbon Steel

• Weathering Steel

• Alloy Steel

• Stainless Steel

This figures shows

• Manufacturing Process of Steel

• Fabrication process of pig iron

• Manufacturing Process of Prestress Concrete

• Fabrication process of steel connection

All of the following are correct answers about the advantages of steel, except :

• High Strength

• Elasticity

• Fatigue

• Toughness

Hot-Roller product consists of rolled & formed section, compound section and built up section

• YES

• NO

What type of this section

(a)  

All of the following statements are correct about steel for prestressed concrete, except

• Requires special wires, strands, cables, and bars

• Must have high strength and low relaxation properties

• Made of high-carbon steels and high-strength alloy steels

• Made of low-carbon steels and low-strength alloy steels

Protection of steel is necessary to provide surface protection in all cases of exposed steelwork from

corrosion by _______ and the ________.

• deflection , heat

• water and air

• moist conditions , atmosphere

• atmosphere, water

Method of application of metal coatings include :

• Hot-dipping

• Cladding

• Spraying

• Electroplating