ESTIMATE QUANTITY OF BRICK WORK......

ESTIMATION  OF  QUANTITY  OF  INGREDIENTS  DURING  BRICKWORK  FOR  A  WALL OF  L*B*T  IS   GIVEN BELOW:

LENGTH       =       300 CM
BREATH       =        300 CM
THICKNESS =       10 CM

STANDARD SIZE OF BRICKS IS USED FOR CONSTRUCTION WORK.

LET START WITH SIZE OF STANDARD BRICK =19*9*9 CM

VOLUME OF WALL =3*3*0.1 = 0.9 M3

WE CALCULATE FIRST FOR  1 m3 BRICKWORK

Volume of one brick without mortar = 19 *9*9 = 0.001539 m3

volume of one brick with mortar   = 20*10*10 = 0.002 m3

Number of bricks for 1 m3 =  1/0.002 = 500 bricks

so volume of bricks without mortar = 500* 0.001539 = 0.769 m3

then volume of mortar = 1-0.769 = 0.2305m3

volume of dry mortar = 1.28* 0.2305 = 0.295 m3

ratio of mortar  = 1:4

number of ingredients in above ratio = 1+4 =5

Quantity of cement  = 1/5*0.295 = 0.059
                                =  0.059/ 0.0347 = 1.7 bags
                                = 1.7*50 = 85 kg

Quantity of sand    =  4/5 *0.295 = 0.236 m3 = 401.2 kg ( Density of sand 1700 kg/m3)

Number of bricks = 500 NOS  ( ABOVE CALCULATION FOR 1 M3 BRICKWORK)

Quantity of water = 85*0.45 = 38.25 kg
( 0.45 is water cement ratio)

IF WE WANT TO CALCULATE FOR 0.9 M3 BRICKWORK THAN IT IS :

CEMENT = 85*0.9 = 76.5 KG
SAND      = 401.2*0.9 = 361.08 KG
BRICKS   = 500*0.9 = 450 NOS .
WATER   =  38.25 *0.9 = 34.42 KG