Design a concrete mix for a concrete of M45 grade as per IS 10262- 2009, with following stipulations and test data for materials. a) Grade Designation: M45 b) Type of Cement OPC 53 confirming to IS 12269-1987 c) Maximum nominal size of aggregate:20mm d) Minimum Cement Content: 360kg/m3 e) Maximum water cement ratio: 0.45 f) Workability: 125mm (slump) g) Exposure condition: Severe (RCC) h) Method of placing the concrete: Pumping i) Degree of supervision: Good j) Type of aggregate: Sub angular aggregate k) Maximum Cement Content: 450kg/m3 l) Chemical admixture type: Superplasticiser (Capable of reducing water content up to 20% max) m) Assume tolerance factor as 1.65. Test Data for Materials Material Sp. Gr WA Free Surface Moisture Cement 3.15 CA 2.7 0.5 Nil FA 2.6 1.0 Nil Zone-I confirming to IS:383 Superplasti ciser 1.145 Coarse Aggregates: I.S.Si eve Analysis of CA Percentage of different fractions 20 I II I 60 II 40 Combined 100 Remarks 10 100 100 60 40 100 Confirmi ng to Table 2 4.75 0 71.20 0 28.50 28.50 2.36 9.40 3.70 3.70

M45 Grade as Per is 10262

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M45 Grade Conc

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Design a concrete mix for a concrete of M45 grade as per IS 10262-2009, with following stipulations and test data for materials.

a) Grade Designation: M45b) Type of Cement OPC 53 confirming to IS 12269-1987c) Maximum nominal size of aggregate:20mmd) Minimum Cement Content: 360kg/m3e) Maximum water cement ratio: 0.45f) Workability: 125mm (slump)g) Exposure condition: Severe (RCC)h) Method of placing the concrete: Pumping i) Degree of supervision: Goodj) Type of aggregate: Sub angular aggregatek) Maximum Cement Content: 450kg/m3l) Chemical admixture type: Superplasticiser (Capable of reducing water content up to 20% max)m) Assume tolerance factor as 1.65.

Test Data for Materials

Material Sp. Gr WA Free Surface Moisture

Cement 3.15CA 2.7 0.5 NilFA 2.6 1.0 Nil Zone-I

confirming to IS:383

Superplasticiser 1.145

Coarse Aggregates:

I.S.Sieve Analysis of CA Percentage of different fractions20 I II I60 II40 Combined

100Remarks

10 100 100 60 40 100 Confirming to Table 2 of IS 383

4.75 0 71.20 0 28.50 28.502.36 9.40 3.70 3.70