In our case, it is 350 kg/m 3 which is greater than 320 kg/m 3, hence satisfied. Calculation of Cement Contentįrom Table 5 of IS 456, the minimum cement content for ‘ Severe‘ exposure condition is 320 kg/m 3 Hence, the arrived water content = 197- = 158 litres. ( Note: If Super plasticizer is used, the water content can be reduced upto 20% and above.)īased on trials with Super plasticizer water content reduction of 20% has been achieved. Selection of Water Contentįrom Table 2 of IS 456:2000, maximum water content =186 litres (for 25 to 50 mm slump range) for 20 mm aggregate.Įstimated water content for 100 mm slump =186+(6/100) x 186 =197 litres. Maximum permissible water-cement ratio is 0.45 4. The Standard deviation, s is taken as 5.0 N/mm 2 ( Table I of IS 10262:2009) Specific Gravity of Fine aggregate : 2.56į target = target average compressive strength at 28 days,į ck = characteristic compressive strength at 28 days, and.Specific gravity of Coarse aggregate : 2.74.Test Data for Materials (to be determined in the laboratory) Chemical Admixture Type : Super Plasticizer.Ģ.
Type of aggregate : Crushed angular aggregate.Exposure condition : Severe (for reinforced concrete).Maximum nominal size of aggregate : 20 mm.Type of cement : OPC 53 grade confirming to IS 8112.
SIMPLE CONCRETE MIX DESIGN CALCULATOR CODE
AN ILLUSTRATIVE EXAMPLE ON CONCRETE MIX PROPORTIONINGĪn example of given concrete mix design steps for concrete of M 30 grade is shown here following IS: 10262-2009 code standards.
0 kommentar(er)
