**CONCRETE MIX DESIGN (GRADE M60)**

**(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/m^{3}

Dry Rodded Bulk Density of coarse aggregate = 1638 Kg/m^{3}

**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 0.68m^{3}

Weight of C.A = 0.68*1638 = 1108.13 Kg/m^{3}

**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/m^{3}

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**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 = 0.7376m^{3}

Volume of Fine Aggregate= 1-0.7376

Weight of Fine Aggregate= 0.2624*2.6*1000= 683.24 kg/m^{3}

**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/m^{3}

**Requirement of materials per Cubic meter**

Cement = 504.21 Kg/m^{3}

Fine Aggregate = 683.24 Kg/m^{3}

Coarse Aggregate = 1108.13 Kg/m^{3}

Water = 141.61 Kg/ m^{3}

Super plasticizers = 4.6681 / m^{3}

So the final ratio becomes

Cement : Fine agg (kg/m^{3}) : Coarse agg (kg/m^{3}) : Water (l/m^{3}): Superplasticizer (l/m^{3})

**1: 1.35 :2.19 :0.29 :0.8**

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

### Kanwarjot Singh

Kanwarjot Singh is the founder of Civil Engineering Portal, a leading civil engineering website which has been awarded as the best online publication by CIDC. He did his BE civil from Thapar University, Patiala and has been working on this website with his team of Civil Engineers.
If you have a query, you can **ask a question here**.

As part of my thesis,i need the M-60 mix design by using 20mm aggregates.

Can you please send me the M-60 mix design by using 20 mm downgraded aggregates.

S.G of C.A=2.7

S.G of F.A=2.64,zone-2

Admixture=Fosroc conplast sp 430

cement=ultratech-opc 53

S.G of Cement=3.1

it should be of indian standard plz it is my humble request sir………..

Dear Govind PL give the Thisis for M 60 Grade concrete for my project work

pl give M-25 mix design with minimum cement content 425 kg/Cum

that is too usfull.

thanks

Dear sir,

Your Method of design is okay but if you are using OPC cement (S.G. 3.15 is given by you) in indian weather condition

the maximum cement content will be 450kg/cubic m and according to your design it is 504 kg/cubic m.I think it is too

high and it will effect the durability of concrete.

For further detail about cotrrect MIx for M-60 Pump caught me on my mail id.

regards

Suneet Tiwari

We can give M-25 concrete with minimum cement content 350 kg/Cum

we need a MIX Design of M-65 by using a 20 mm aggregate and using a micro silica and admixture… for a initial setting time of 90 min….

sir plz send me the mix design of M65 , This is my humble request and it will be useful to all of us

Pl Send me the Mix Design For M60 Grade of Concrete with Microsillica as Mineral Admixture

Cement OPC 53

Sp. Gravity of CA 2.68

Sp. Gravity OF FA 2.65

Admixture Gillenium B233

Sand of Zone-II

AIV 14.5%

i so feels hapy to be acivil engineering student

i would like to say you you are wender full.

i would like to see the staps of mix desin&the avilable tables for mix desine

i would like to see the steps of mix desin&the avilable tables for mix desine

Dear,

sir

I just love to learn about concrete design mix & structural work if

you can help me i will be very glad.

Pl Send me the Mix Design For M60 Grade of Concrete with Microsillica as Mineral Admixture& Free flow concrete (SCC)

Cement OPC 53

Sp. Gravity of CA 2.84

Sp. Gravity OF FA 2.72

Admixture BASF GLENIUM SKY 784 & STEAM 2(VMA)

Sand of Zone-II

AIV 23%

Even you can try with MetaCem85 C – Metakaolin inplace of MicroSilica-

resp. sir,

i am doing pg in structural engineering and my project is on high strength conrete with

crushed sand as fine aggregate ranges from M-60 to M-80. i want guidance about mix design

methods reffer than IS code 10262 method due to some limitations.

thank u so much. it was very useful to us.

We are urgently required the mix design of concrete Mix M25 with J.P Cement PPC ,20mm &10mm aggregate,

coarse sand of zone 2nd and pidilite admixture BRL.Please specify the quantities of all the materials to

be used and stating the slump.this mix design is to be used through concrete mix plant.

Hoping for the positive action soon.

THANKS

Sir, it’e good to know that, there can be an alternative to concrete mix design……

I will like to have Hughes alternatives!

Thanks……..

Thans for The Proper Lecture &Guidence & Very Usfull For My Future Prospect.

Thanking You.-

Samadhan G.Gaikwad

can you give me a challenging problem statement or anything related to that, for casting a concrete block taking into consideration SUSTAINABILITY DEVELOPMENT i.e.which will be environment friendly and useful in future also….

please this is so urgent……..

which specific gravity (bulk, SSD, apparent)to be use in absolute volume design method. Another thing is that while designing we are assuming the aggregate is on ssd condition or not. If yes, then its need to add water for water absorption?

sir please send me the mix design of M60 using 20mm aggregate as maximum size of aggregate