**To calculate the number of bricks, cement, and sand required for 1 cubic meter of brickwork, we need to know the following information:**

The dimensions of one brick (length, width, and height).

The thickness of the mortar joint between bricks.

The ratio of cement, sand, and water in the mortar mix.

Assuming that the dimensions of one brick are 240mm x 115mm x 57mm and the thickness of the mortar joint is 10mm, and the mortar mix ratio is 1:4 (one part cement and four parts sand), we can calculate the quantities as follows:

*** *** Number of bricks per 1 cubic meter of brickwork:

First, we need to calculate the volume of one brick including the mortar joint.

Length of brick with joint = 240mm + 10mm = 250mm

Width of brick with joint = 115mm + 10mm = 125mm

Height of brick with joint = 57mm + 10mm = 67mm

Volume of one brick with joint = 0.25m x 0.125m x 0.067m = 0.00209 cubic meters

**
Number of bricks required for 1 cubic meter of brickwork = 1 / 0.00209 = 478.47 bricks**

**
Since we cannot use fractional bricks, we need to round up the number to the nearest whole number. Therefore, we need 479 bricks.**

Quantity of cement required for 1 cubic meter of brickwork:

The mortar mix ratio is 1:4, which means one part cement and four parts sand.

Total parts in the mix = 1+4 = 5 parts.

Quantity of cement required for 1 cubic meter of brickwork = (1/5) x 1 cubic meter = 0.2 cubic meters

Since the density of cement is 1440 kg/cubic meter, the weight of cement required = 0.2 x 1440 = 288 kg.

Quantity of sand required for 1 cubic meter of brickwork:

Quantity of sand required for 1 cubic meter of brickwork = (4/5) x 1 cubic meter = 0.8 cubic meters

Since the density of sand is 1600 kg/cubic meter, the weight of sand required = 0.8 x 1600 = 1280 kg.

**
Therefore, for 1 cubic meter of brickwork, we need 479 bricks, 288 kg of cement, and 1280 kg of sand**.

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