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The mix design M-50 grade (Using Admixture –Sikament) provided here is for reference purpose only. Actual site conditions vary and thus this should be adjusted as per the location and other factors.

**Parameters for mix design M50**

Grade Designation = M-50

Type of cement = O.P.C-43 grade

Brand of cement = Vikram ( Grasim )

Admixture = Sika [Sikament 170 ( H ) ]

Fine Aggregate = Zone-II

**Sp. Gravity**

Cement = 3.15

Fine Aggregate = 2.61

Coarse Aggregate (20mm) = 2.65

Coarse Aggregate (10mm) = 2.66

Minimum Cement (As per contract) =400 kg / m^{3}

Maximum water cement ratio (As per contract) = 0.45

**Mix Calculation: –**

1. Target Mean Strength = 50 + ( 5 X 1.65 ) = 58.25 Mpa

2. *Selection of water cement ratio:-*

Assume water cement ratio = 0.35

3. *Calculation of water: –*

Approximate water content for 20mm max. Size of aggregate = 180 kg /m^{3} (As per Table No. 5 , IS : 10262 ). As plasticizer is proposed we can reduce water content by 20%.

Now water content = 180 X 0.8 = 144 kg /m^{3}

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4.

Water cement ratio = 0.35

Water content per cum of concrete = 144 kg

Cement content = 144/0.35 = 411.4 kg / m

Say cement content = 412 kg / m

Hence O.K.

5. Calculation for C.A. & F.A.: [ Formula’s can be seen in earlier posts]-

Volume of concrete = 1 m^{3}

Volume of cement = 412 / ( 3.15 X 1000 ) = 0.1308 m^{3}

Volume of water = 144 / ( 1 X 1000 ) = 0.1440 m^{3}

Volume of Admixture = 4.994 / (1.145 X 1000 ) = 0.0043 m^{3}

Total weight of other materials except coarse aggregate = 0.1308 + 0.1440 +0.0043 = 0.2791 m^{3}

Volume of coarse and fine aggregate = 1 – 0.2791 = 0.7209 m^{3}

Volume of F.A. = 0.7209 X 0.33 = 0.2379 m^{3} (Assuming 33% by volume of total aggregate )

Volume of C.A. = 0.7209 – 0.2379 = 0.4830 m^{3}

Therefore weight of F.A. = 0.2379 X 2.61 X 1000 = 620.919 kg/ m^{3}

Say weight of F.A. = 621 kg/ m^{3}

Therefore weight of C.A. = 0.4830 X 2.655 X 1000 = 1282.365 kg/ m^{3}

Say weight of C.A. = 1284 kg/ m^{3}

Considering 20 mm: 10mm = 0.55: 0.45

20mm = 706 kg .

10mm = 578 kg .

Hence Mix details per m^{3}

Increasing cement, water, admixture by 2.5% for this trial

Cement = 412 X 1.025 = 422 kg

Water = 144 X 1.025 = 147.6 kg

Fine aggregate = 621 kg

Coarse aggregate 20 mm = 706 kg

Coarse aggregate 10 mm = 578 kg

Admixture = 1.2 % by weight of cement = 5.064 kg.

**Water: cement: F.A.: C.A. = 0.35: 1: 1.472: 3.043 **

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A. Mix was cohesive and homogeneous.

B. Slump = 120 mm

C. No. of cube casted = 9 Nos.

7 days average compressive strength = 52.07 MPa.

28 days average compressive strength = 62.52 MPa which is greater than 58.25MPa

Hence the mix accepted.

We are thankful to Er Gurjeet Singh for this valuable information.

Dear Sir,

Kindly send me Mix design for M-55 grade paver blocks,which is made up of only crushed sand with 0-4 mm & cement.

Dear sir,

Kindly send me mix design M – 45 grade

Dear Sir

Please send me article regarding preparation of MIx desing

Dear Sir,

Kindly send me Mix design for M-50 grade using waste glass in replacement of aggregate

Sir,we have considered vol of conc=1.Then we have deducted the total vol of cement,water & admixture from 1.but we have not considered the entrapped air.If maximum size of coarse aggregate used say,20 mm,then entrapped air will be 2%.Enteapped air will be taken into account or not?Please help in this regard.-ARIJIT ROY

can we desing concrete mix design with 100% CRF, if so what is ITS RELIABILITY AND DRABILITY

Dear sir

kindly send me mix design for M-15,M-20,M-25,M-30,M-35,M-40,M-50 grades using wast glass of aggregate

sir please send me the design of road work mix design by using 40mm size

kindly send me mix design for M-15,M-20,M-25,M-30,M-35,M-40,M-50 grades using ppc and fly ash

sir,

please send me mix design for m 35 with crushed sand because non avalibality of sand in uor locality please do needfull help

Dear Sir,

Can you please send me detailed Mix design as per IS codes

kindly send me mix design for M-15,M-20,M-25,M-30,M-35,M-40,M-50 grades using ppc and fly ash

plz send mix design of M-45 and M-35 .

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The easiest way for doing Mix-design. 1- a/100 = 1/1000(W+C/3.15+ FA/ PXSqFA) for fine aggregate. 1-a/100=1/1000(W+C/3.15+CA/PX1-SqCA)

Dear sir

Plz send me m-25grade using jaypee opc-43cement

m-25 1:1:2

Hi Mr Reddy,

Please suggest if we get concrete slump more then the required slupm for example required slamp 100 (+,- 25) and also suggest the which material used to controle

Dear all,

Please send me a High flow concrete Parameters for mix design M70