What are the Types of steel Reinforcement?

 Types of steel Reinforcement

There are mainly using three types of reinforcement

1.     REBARS

2.     WIRE REINFORCEMENT

3.     PRESTRESSING STEEL

 

1.REBARS:

It has two types plain reinforcement, deformed reinforcement

Plain reinforcement:

1.     Mild steel bars

2.     Carbon steel bars

3.     Low – Alloy steel bars

 

    Deformed reinforcement:

1.     Mild steel ribbed bars

2.     HYSD bars

a.     CTD bars

b.     TMT bars

3.     Carbon steel bars

4.     Low – Alloy steel bars

5.     Stainless steel bars

6.     Rail and Axle steel bars

7.     Galvanized steel bars

8.     Low carbon chromium bars

9.     Epoxy coated bars

 

2.WIRE REINFORCEMENT:

1.     Hard – Drawn steel wire fabrics

2.     Plain and deformed welded wire fabrics

3.     Epoxy coated steel wire and welded wires

4.     Stainless – steel wire and welded wire

3.PRESTRESSING STEEL

1.     Medium tensile steel bar

2.     High tensile steel bars

How calculate quantity of cement, sand and aggregate in 1m3 of concrete?

 

Concrete mix design for 1m3 of M20 grade concrete

SUMMARY:

1. volume of cement required for 1m3 concrete 403.2 kgs, 1 bag cement weight is 50kgs, so calculate number of cement bags required for 1m3 of concrete, total calculated cement weight divided by one bag cement weight.

                  number of cement bags consume    = 403.2/ 50 

                                                                              = 8.06 

                                                                              ~ 8 bags.

2. volume of sand required for 1m3 of concrete 672kgs, weight of 1 CFT 

sand value is 43.30kgs,, so calculate number of CFT sand required,

                                                Number of CFT    = 672/43.30

                                                                                = 15.51

                                                                                = 16 cft.

3. volume of aggregate required for 1m3 of concrete 1356 Kgs, weight of 1 CFT 

aggregate value is 68.15 kgs, so calculate number of CFT aggregate required,

                                              Number of CFT        = 1356/ 68.15

                                                                                  = 21.47

                                                                                  ~ 21 cft.

Basic Knowledge of Civil Engineering

WHAT ARE THE TESTS ON CONSTRUCTION MATERIALS?

 

TESTS OF CONSTRUCTION MATERIALS

 

Soil Test:

1.        Compression test

2.        Core Cutter Method

3.        Permeability Test

4.        Sand Replacement Method

5.        Standard Penetration Test

6.        Standard Proctor Test

7.        Triaxial Shear test

Aggregate Test:

1.        Abrasion test

2.        Crushing test

3.        Impact test

4.        Soundness test

5.        Specific gravity and water absorption test

Cement Test:

1.        Consistency Test

2.        Fineness Test

3.        Setting Time Test

4.        Soundness Test

5.        Specific gravity Test

6.        Strength Test

Bitumen Test:

1.        Penetration Test

2.        Ductility Test

3.        Softening point Test

4.        Specific Gravity Test

5.        Viscosity Test

6.        Flash and Float Test

Concrete Test:

Workability Test:

Measurement of workability

1.        Slump Test (For medium - High Workability )

2.        Compaction Factor Test  (Very low Work ability)

3.        Vee- Bee Test (Low - medium)

4.        Flow Table Test (Very High Workability)

Destructive Test:

a.         Compressive Strength Test

b.        Tensile strength Test

Non Destructive Test:

c.         Rebound hammer test

d.        Ultrasonic Pulse Velocity

Steel bar Test:

1.        Bending test

2.        Brinell hardness test

3.        Compression test

4.        Impact test

5.        Rockwell hardness test

6.        Tensile test

7.        Torsion test

 

Tests on Bricks:

1.        Crushing Strength Test

2.        Hardness Test

3.        Presence of Soluble salts or Efflorescence Test

4.        Shape and Size Test

5.        Soundness Test

6.        Structure Test

7.        Water Absorption Test

8.        Colour Test

9.        Impact Test