**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**.

Sir,

Thanks for ur proper Guidence.

M60grade concrete most use forhavey st.

November 21, 2008 at 4:21 pm

Conc mix design with cement content of 504 kg/cum. Is IS 456 2000 allows us more than 450kg/cum .

is it sustainable conc ?it is required to mention admixture and slump.require to revise

Reply

sir! please forward me a copy or pdf file for estimation of civil drawing..& also

Reply

which super plastisizer should be use to make M70 GRADE OF CONCRETE

Glenium can be suitable

sir, for achieving compressive strength about 75 mpa after 7 day by using m53 grade cement ,what procedure have to use . please send the design on my email. plzz

Dear Sir,

I would like know about the what is different between 43 & 53 grade cement.

dear sir,

i want to asked about the cement factor what is the main role of it in concrete mix design.

Sir,

How was control the quality give me suggeation & how was make self compaction concrerte.

Sir want Mix Design of M50 and M60 Grade which can be made at our site with 10mm metal for 1 bag Cement as have Jacket the Building’s Retaining wall and pardi by 75 to 100mm.

Sir i want Mix Design of M80 and its details plz sir reply me urgent on my mail id

sir! please forward me a copy or pdf file for calculation of B.B.S…& also

Reply

Dear sir

I have need to know information about cracks of concret.

give me grade of m30 to m60 with weight

sir

I want to ask about the posibility of using cementitious materials like silica fume in this mix ,,, please reply

in concrete design bulk specific ssd is used or not if used then what are reasons

DEAR SIR

THANKS FOR GIVEN PAPER PRESENTATION. SIR THIS FULLY USE FOR ME AND I HOPE HELP FULL OTHERS ALSO

Conc mix design with cement content of 504 kg/cum. Is IS 456 2000 allows us more than 450kg/cum .

is it sustainable conc ?it is required to mention admixture and slump.require to revise. for achieving compressive strength after 7 day by using m60 grade cement ,what procedure have to use . please send the design on my email. plzz

Resp. Sir,

I want to know about bug holes & pin holes. How can reduce bug holes. Please give me some ideas.

Regards.

R. K. Gupta

Dear Sir,

i want information related to SCC Vs Normal concrete,code applicable to SCC

Dear Sir,

If Coarse aggregate fail to confirm gradation requrement of nominal size 20mm,10mm as per IS 383. (For eg. 75% passing 20mm sieve, required Min. 85% passing)Can we further proceed for mix design. As basic requirement of Mix design as per IS: 10262:2009 is aggregate conforms to IS:383.