By using a mix design procedure, mix proportions for the desired grade of concrete have been obtained as 1 : 2.2 : 3.6 (by mass) with water cement ratio of 0.55. To make 0.40 m3 of concrete the weight of cement required is ______kg.
Assume air content to be 0% and specific gravity of cement, sand and aggregate were 3.15, 2.65 and 2.7 respectively.Enter numerical value using the virtual keypad. Round off where necessary.