Answer Posted / rafeek shehu ibrahim

Mixing ratio 1:5 12mm thickness
Add 25% for Unevenness volume of wet mortar
Add 30% for Dry mix Volume
so, 55% is to be added
=300/10.76*0.012
=0.334m3 wet mortar need for 300ft2/27.88m2(12mm thick)
so,Dry volume=0.334+0.334*55%
=0.517m3
red Cement=(volume of Dry material/summation of proportion)
----------------------------------------------
Volume of 1bag Cement
=(0.517/6)
--------
0.035(volume of 1 Bag of cement)
Answer =2.46Bags

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