Tell it the wall. It tells you the bricks, the cement, the sand and the loads.
Standard modular brick 190 × 90 × 90 mm. With a 10 mm mortar
joint each brick occupies 200 × 100 × 100 mm, so one cubic metre
of finished wall takes 500 bricks.
Mortar is the gap left over: 1 − (500 × 0.19 × 0.09 × 0.09) = 0.2305 m³
of wet mortar per m³ of wall, taken to 0.288 m³ dry after the usual 25 %
bulking allowance.
Cement is that dry volume divided by (1 + mix ratio), at 1,440 kg/m³ and 50 kg a bag. Sand is the remainder. 5 % wastage is added to the brick count, which is on the tight side of what sites actually lose.
These are planning figures for ordering. Your mason's judgement on site beats any calculator.
NNL Bricks, Reoti, Ballia. Rates and delivery on request.
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