CIVIL ENGINEERING DEPARTMENT

RECOMMENDED MIX PROPORTIONS FOR CONCRETE M30

[ AS PER IS 10262-2009 ]

Sr.No.

DESCRIPTION

MIX (TRIAL) NO:1

1. Strength at days(�

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A

Specified works cube

strength

30 �

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B

Laboratory Design Strength

38.25�

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2. WORKABILITY

A Slump (mm) 111 mm

B Compaction Factor (%) 0.915

3.

Degree of control

Good

4.

Method of Compaction

Table Machine Vibrator

5.

Maximum Nominal size of

aggregate(mm) taken For calculation

20mm

6. Water cement ratio by Weight

A Free 0.45

B Actual 0.42

7. Mix proportions

Cement : F.A : C.A : Water

Cement F.A. C.A. Water

1.000 1.322 2.342 0.523

6 7.932 14.052 3.138

8.

Aggregate cement ratio by Weight

3.664 : 1.000

9.

Cement content ( ��

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A Theoretical 320 480

B Actual 456 _

10.

Laboratory Cube Strength obtained ( �

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After curing

A 3 Days

(Normal curing method)

B 7 Days

(Normal curing method)

C 28 Days

(Normal curing Method)

11.

Unit Weight of Fresh Concrete ( ��

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6097.27 ��

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