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Mix Design For M35 Grade Of Concrete

The mix design for M35 Grade Of Concrete for pile foundations provided here is for reference purpose only. Actual site conditions vary and thus this should be adjusted as per the location and other factors.

Grade of Concrete : M35
Characteristic Strength (Fck) : 35 Mpa
Standard Deviation : 1.91 Mpa*
Target Mean Strength : T.M.S.= Fck +1.65 x S.D.
(from I.S 456-2000) = 35+ 1.65×1.91
= 38.15 Mpa

Test Data For Material:
Aggregate Type : Crushed
Specific Gravity
Cement : 3.15
Coarse Aggregate : 2.67
Fine Aggregate : 2.62


Water Absorption:
Coarse Aggregate : 0.5%
Fine Aggregate : 1.0 %


Take Sand content as percentage of total aggregates = 36%

Select Water Cement Ratio = 0.43 for concrete grade M35

(From Fig 2. of I.S. 10262- 1982)

Select Water Content = 172 Kg

(From IS: 10262 for 20 mm nominal size of aggregates Maximum Water Content = 186 Kg/ M3 )

Hence, Cement Content= 172 / 0.43 = 400 Kg / M3

Formula for Mix Proportion of Fine and Coarse Aggregate:

1000(1-a0) = {(Cement Content / Sp. Gr. Of Cement) + Water Content +(Fa / Sp. Gr.* Pf )}

1000(1-a0) = {(Cement Content / Sp. Gr. Of Cement) + Water Content +Ca / Sp. Gr.* Pc )}

Where Ca = Coarse Aggregate Content

Fa = Fine Aggregate Content

Pf = Sand Content as percentage of total Aggregates

= 0.36

Pc = Coarse Aggregate Content as percentage of total Aggregates.

= 0.64

a0 = Percentage air content in concrete (As per IS :10262 for 20 mm nominal size of

aggregates air content is 2 %) = 0.02

Hence, 1000(1-0.02) = {(400 /3.15) + 172 +(Fa / 2.62 x 0.36)}

Fa = 642 Kg/ Cum

As the sand is of Zone II no adjustment is required for sand.

Sand Content = 642 Kg/ Cum

1000(1-0.02) = {(400 /3.15) + 172 +(Ca / 2.67 x 0.64)}

Hence, Ca = 1165 Kg/ Cum

From combined gradation of Coarse aggregates it has been found out that the proportion of 53:47 of 20 mm & 10 mm aggregates produces the best gradation as per IS: 383.

Hence, 20 mm Aggregates = 619 Kg

And 10 mm Aggregates = 546 Kg

To obtain slump in the range of 150-190 mm water reducing admixture brand SP430 from Fosroc with a dose of 0.3 % by weight of Cement shall be used.


Hence the Mix Proportion becomes:





















Units – Kg/ M3

Cement : Sand: Coarse Aggregates = 1 : 1.6 : 2.907

We are thankful to Er. Ishan Kaushal for this valuable information.

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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.

152 comments on "Mix Design For M35 Grade Of Concrete"

chirag says:

this is first step for all engineers and this data make it very easy for quality assurance.
thank you to all who have done this.


it is very useful for future

Fletch says:

This is cool,very enlightining and useful

Rohitashwa sharma says:

Nice work theoretically. Practically it will not be possible to achieve M-35 by this Mix. So if u hav to actually achieve this strength it should be 1:1:2

Biswajit mansingh says:

Do you know mix design? if no think before comment any body

AnilKV says:

Dear Admin i am doing my Mtech now.
I need mix design for M25 and M30 grades.
Please provide information.
Thank you in advance..

lakshya says:

plz mail me the best and the cheap mix design in which we can reduce the maximum quatity of cement using BASF and RHEOP LAST admixture.

sanjay kumar says:

pl send me concret mix design m30 for bogibeel bridge oe 4.315 km


It is very useful.Thanks a lot


sometimes we need manual mixing at that time it is very useful to know
the exact mix proportion of M35.
it really useful data.

sanjay singh says:

I am working persons , don’t have time to go through books ,

it is very helpfull to me for design mix for reference

jaykrishna patel says:

very usefull

rajesh says:

itis very useful,thank u very much

jainendra chaudhary says:

its very good sir, but have to mention suitability of that grade also. can be change the way representation????

mohamed salman says:

Thanks alot for ur…….

shankar says:

this is very useful inforation for me

aakash says:

this is very useful for freshers as well as for experienced engineers.

Paresh says:

it is very useful for me…..
thank you

ulyses says:

what abaoth specyfication mix desing for 25 MPa,

Vijay.P.S.R. says:

Dear sir,
Thank you for your information. But there is difference between ISI, ACI and other International standards. Which are the actual norms?. We are
working for U.S. Army Corps of Engineers. They will accept only ASTM or AASHTO Standards. While we are submitting the test reports, we are in
confusion. If you inform us the above standards for 10 Mpa to 40 Mpa, we will be greatfull to you. Otherwise create a calculator for automatic
Thanks and regards,
Project Manager,
HCC, Kabul.

zaheer says:

Thank you!

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