Mix Design For M35 Grade Of Concrete
Posted in Mix Design  Email This Post 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 4562000) = 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 %
MIX DESIGN
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/ M^{3 })
Hence, Cement Content= 172 / 0.43 = 400 Kg / M^{3}
Formula for Mix Proportion of Fine and Coarse Aggregate:
1000(1a_{0})_{ }= {(Cement Content / Sp. Gr. Of Cement) + Water Content +(F_{a }/ Sp. Gr.* P_{f })}
1000(1a_{0})_{ }= {(Cement Content / Sp. Gr. Of Cement) + Water Content +C_{a }/ Sp. Gr.* Pc_{ })}
Where C_{a }= Coarse Aggregate Content
F_{a }= Fine Aggregate Content
P_{f } = Sand Content as percentage of total Aggregates
= 0.36
Pc = Coarse Aggregate Content as percentage of total Aggregates.
= 0.64
a_{0 }= Percentage air content in concrete (As per IS :10262 for 20 mm nominal size of
aggregates air content is 2 %) = 0.02
Hence, 1000(10.02)_{ }= {(400 /3.15) + 172 +(F_{a }/ 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(10.02)_{ }= {(400 /3.15) + 172 +(C_{a }/ 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 150190 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:
Cem 
W/C 
Water 
Sand 
20mm 
10mm 
Admix 
400 
0.43 
172 
635 
619 
564 
1.2 
1 

0.43 
1.6 
1.547 
1.36 
0.003 
Units – Kg/ M^{3}
Cement : Sand: Coarse Aggregates = 1 : 1.6 : 2.907
We are thankful to Er. Ishan Kaushal for this valuable information.
D/Sir,
I am very pleased with the information.If possible Please post M 35 Mix Design using PSC Cement(Ultratech), in SSD condition
sir,
i need M30 MIX DESIGN using PPC cement(AMBUJA). IF YOU KINDLY SEND I WILL BE GRATEFULL TO YOU.
I am very pleased with the information.If possible Please post M 35 Mix Design using PSC Cement(Ultratech), in SSD condition
I do need solution for a problem that we are working on a pre engineered steel building project in which are having problem of major cracks in flooring while we coat the finishing layer what should I do to overcome this problem please help me
Iam very pleased with the information ,if u post M35 design (opc) using in manglam Cement Ltd. Thank u
D/sir i am very plzd with the information that generally on which grade cement used in M35 propertion&without test can it possible to used all types of cement(EX:konark,Aultratech…..)
R/Sir this is very useful data for me regarding the M35 design (OPC).Please will u elaborate the water cement ratio calculations for M20?
sir,
i need M30 MIX DESIGN using PPC cement(Bamburi). IF YOU KINDLY SEND I WILL BE GRATEFULL TO YOU.
Hi Could you please send the “INITIAL AND FINAL SETTING TIME OF READY MIX CONCRETE” FOR ALL THE GRADE OF CONCRETE. Thanks …
Thank ful to you sir.
I need a mix design for 35mpa using PPC OPC CEMI 52.5N without any admitures
V nice contribution. Pls share this in Excel format.
Thank you very much sir…
Thank you sir
what is the recommended cure time for M35 grade?
How to determine the percentage of sand of total weight of aggregates if your sand grading says at zone M? As your grade M35 concrete mix design seen 36% of fine aggregate of the total weight of aggregates.
Thank you very much.
Sir, plse send the where we will use the m35 ,m40 graded mixes
salam.
dear sir
i am very pleased to see you beautifull guidelines
sir i need concrete mix design for class A3(piles) as soon as possible.
your prompt response will be highly appreciated
sir i m also civil er. i want to know how to we use the aggregate dust in concrete industreis.Plz sand me right information.
How is it that you have considered Standard Deviation as 1.91 as against 5 prescribed by IS 10262? Thanks