Rate Analysis Of Concrete - M25 Concrete Example Rate Analysis

Today we are going to discuss the rate analysis of concrete along with an example calculation for M25 Concrete. Before that, you must understand the steps involved in rate analysis. We have already discussed the rate analysis basics.

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How to do rate analysis for concrete?

To get almost nearby accurate rate analysis, you have to consider the following things,

Material Estimation
Labour Estimation
Power consumption
Water consumption
Tools and equipment
Contingencies
Overhead & Profit

1. Estimation of Materials

Assume We need 1 m3 of wet volume concrete of M25 Mix, (Mix Ratio, M25 = 1: 1 : 2)

So Total Parts = 1+1+2 = 4 Parts which gives Dry volume that means before adding water content

Volume of concrete = (1 Cement Part)/4 + (1 Sand Part)/4 + (2 Coarse Aggregate Part)/4

Therefore,

Volume of Cement = 1/4 x 1.55
Volume of Sand = 1/4 x 1.55
Volume of Coarse Aggregate = 2/4 x 1.55
From the IS Code standard, Assuming the water-cement ratio for M20 is 0.5

The reason for that 1.55 has been already discussed in the concrete ingredients calculation topic.

So the required

Cement Volume – 0.3875 m3 or 11.16 Bags
Sand Volume – 0.3875 m3
Coarse Aggregate – 0.775 m3
Required Water – 193.75 Litres

We have estimated the material requirement.

2. Labour Estimation

As per our Labour Output Thumb Rule estimation. We assume that we need approx manpower in terms of days as below

Foreman – 0.05
Mason – 0.3 Day
Male Coolie – 1 Day
Female Coolie – 1 Day
Waterman – 0.1 Day

We had covered the crucial task and we shall add a certain percentage for water, power consumption, etc.,

How do you calculate the rate analysis of m25 grade concrete?

Example Rate Analysis

PARTICULARS	UNIT	QTY	RATE	AMOUNT
1:1:2 (1 Cement: 1 coarse sand: 2 graded stone aggregate of 20mm nominal size) including curing
Details of the cost of 1m³ of M25 concrete
Materials
Cement	Bags	11.16	350	3906
Sand	m³	0.3875	1800	697.5
Coarse Aggregate	m³	0.775	1500	1162.5
Manpower
Foreman	Each	0.05	800	40
Mason	Each	0.3	700	210
Male Mazdoor	Each	1	500	250
Female Mazdoor	Each	1	400	200
Waterman	Each	0.2	400	80
		Subtotal		6546
Tools & Tackles			1%	65.46
Power Consumption			2%	130.92
Add for sundries & contingencies			3%	196.38
Add for overhead & contractor profit			15%	981.9
		Rate per Cu.metre		7921