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# Concrete Mix Design M-60

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(a) DESIGN STIPULATION:-
Target strength = 60Mpa
Max size of aggregate used = 12.5 mm
Specific gravity of cement = 3.15
Specific gravity of fine aggregate (F.A) = 2.6
Specific gravity of Coarse aggregate (C.A) = 2.64
Dry Rodded Bulk Density of fine aggregate = 1726 Kg/m3
Dry Rodded Bulk Density of coarse aggregate = 1638 Kg/m3

Step-1
Calculation for weight of Coarse Aggregate:
From ACI 211.4R Table 4.3.3 Fractional volume of oven dry Rodded C.A for 12.5mm size aggregate is 0.68m3
Weight of C.A = 0.68*1638 = 1108.13 Kg/m3

Step-2
Calculation for Quantity of Water:
From ACI 211.4R Table 4.3.4
Assuming Slump as 50 to 75mm and for C.A size 12.5 mm the Mixing water = 148 ml
Void content of FA for this mixing water = 35%
Void content of FA (V)
V = {1-(Dry Rodded unit wt / specific gravity of FA*1000)}*100
= [1-(1726/2.6*1000)]*100
= 34.62%

Adjustment in mixing water = (V-35)* 4.55
= (34.62 – 35)*4.55
= -1.725 ml
Total water required = 148 + (-1.725) = 146.28 ml
Step-3
Calculation for weight of cement
From ACI 211.4R Table 4.3.5(b)
Take W / C ratio = 0.29
Weight of cement = 146.28 / 0.29 = 504.21 kg/m3

Step-4
Calculation for weight of Fine Aggregate:

Cement = 504.21 / 3.15*1000= 0.1616
Water = 146.28 / 1*1000= 0.1462
CA = 1108.13 / 3*1000= 0.3690
Entrapped Air = 2 / 100= 0.020
Total = 0.7376m3
Volume of Fine Aggregate= 1-0.7376
Weight of Fine Aggregate= 0.2624*2.6*1000= 683.24 kg/m3

Step-5
Super plasticizer:
For 0.8% = (0.8 / 100)*583.53 = 4.668 ml

Step-6
Correction for water:
Weight of water (For 0.8%) =146.28 – 4.668 =141.61 kg/m3

Requirement of materials per Cubic meter
Cement = 504.21 Kg/m3
Fine Aggregate = 683.24 Kg/m3
Coarse Aggregate = 1108.13 Kg/m3
Water = 141.61 Kg/ m3
Super plasticizers = 4.6681 / m3

So the final ratio becomes
Cement : Fine agg (kg/m3) : Coarse agg (kg/m3) : Water (l/m3): Superplasticizer (l/m3)

1: 1.35 :2.19 :0.29 :0.8

This concrete mix design has been submitted to us by Natarajan. We are thankful to him for this valuable contribution.

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Which is the maximum grade of concrete ??

• Ranganath May 7, 2016 at 10:11 pm

Do we have mix design for SCC as per Indian standards

• Anju Chandran September 2, 2016 at 9:30 pm

Sir
Please give the mix design for M60 using IS Code

• salmanfarish November 24, 2016 at 1:06 am

do u having the mix design for those u asked above grade

• girish March 30, 2017 at 2:15 am

sir ;
maximum cement for design mix 450 kg/m3, then how you take above 500 kg??

• Hassan Shafeeq April 4, 2017 at 2:42 am

Dear Sir,

Thanks for your efforts in concrete mix design. But I think using more than 500 Kg/m3 of Cement will give us a lot of problems starting from thermal stress which will cause a lot of problems in concrete….

• Mangesh ghodake February 15, 2018 at 3:08 pm

Do you having mix design For M60 grade concrete by using fly ash and silica fume.

• do you have mix desgin for M55 & M60 by using silica fume and fly ash February 22, 2019 at 4:14 am

plz mail excel or pdf if you have any one who would like to help me i need this for my project