Question { 9557 }

how to calclate the cemment for 1 cubic metre of 1:2:4 concrete

Answer

1 cum of 1:1:4 concrete 
Dry volume equal is 1.52 
Cement equal is 1/6*28.8*1.52 =7.2 bags cements
        = 364.8 kg cements 

Question { MKK, 8232 }

how do make a measuring box for 1 cubic metre of 1:2:4
concrete for 350kg

Answer

Measuring cement box size equal is 25*35*40 cm equal to .25*.35.*.40 m =0.035 cum

Question { 17908 }

How many bages of cement used in 1cft?and how we calculat sand and agregats

Answer

Ratio for concrete M20 equal is 1,1,2
Total volume equal is 1cft 
Concrete dry volume equal is 1.52
Cement bags= 1/4*28.8*0.028*1.52 equal is 0.306 bags
            = 15.32 kg cements 
Sand equal is 1/4*0.028*1.52 equal is 0.170 Cum
            = 0.375 cft sand
Agregats equal is 2/4*0.028*1.52 equal is 0.021 Cum
           =  0.751 cft agregats