Cement plaster ratio (1:6)
Internal plaster thickness = 12 mm
Volume of mortar in plaster
= 1 m x 1 m x 0.012 m
= 0.012 cu.m.
Dry volume increased by 33%
Therefore
Dry volume = 0.012 + [ ( 33/100) x 0.012]
= 0.012 + 0.00396
= 0.01596
Cement required
= 0.01596 x 1/7 x 1440 ………(Density of cement is 1440)
= 3.28 kg
= 0.0656 bags ….(3.28kg/50kg = 0.0656 bags)…(1bag cement = 50kg)
Sand required
= 0.01596 x 6/7 x 1.226………( 1 bag cement = 1.226 cu.ft.)
= 0.483 cft.
