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Section Properties of Reinforcing Bars & Cement Types

Courses > Reinforced Concrete Design > General Topics > Section Properties of Reinforcing Bars & Cement Types


Introduction on Section Properties of Reinforcing Bars & Cement Types :

General properties of reinforcing bars used in concrete design as well as the main types of portland cement are given in this article.



Concepts and Formulas of Section Properties of Reinforcing Bars & Cement Types:

 

Section properties of reinforcing bars

Bar

Nominal diameter

Cross Section

Perimeter

Normal weight

No.

in

mm

in

mm

in

mm

in

mm

3

0.375

9.52

0.11

71

1.178

29.9

0.376

0.56

4

0.5

12.7

0.2

129

1.571

39.9

0.668

0.994

5

0.625

15.88

0.31

200

1.963

49.9

1.043

1.552

6

0.75

19.05

0.44

284

2.356

59.8

1.502

2.235

7

0.875

22.22

0.6

387

2.749

69.8

2.044

3.042

8

1.000

25.4

0.79

510

3.142

79.8

2.67

3.973

9

1.128

28.65

1.00

645

3.544

90.0

3.4

5.06

10

1.27

32.26

1.27

819

3.990

101.4

4.303

6.404

11

1.541

35.81

1.56

1006

4.43

112.5

5.313

7.907

14

1.693

43.00

2.25

1452

5.32

135.1

7.65

11.38

18

2.257

57.33

4.00

2581

7.09

180.1

13.6

20.24

 

Main types of portland cement

Type

Name

Description

I

Normal

General purpose (most buildings, bridges, pavements, precast units, etc)

II

Moderate

Moderate sulfate and heat resistance

III

High early strength

Fast strength development, cold weather concreting

IV

Low-heat

Generate low-heat during hydration (Massive structures such as dams.)

V

Sulfate-resisting

High sulfate resistance

White White color Decorative (otherwise has properties similar to Type I)

Note! Portland Cement is a type of cement, not a brand name. Many cement manufacturers make Portland Cement.
 

 


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