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Calculation factor for mortar in walls

  • 16-02-2021 6:32pm
    #1
    quietsailor
    Registered Users, Registered Users 2 Posts: 1,428 ✭✭✭


    I'm looking at building a wall that will be 4500 - 5000 of 440X215X100 blocks. Is there a calculation you can make to determine the amount of mortar; from that I can work the amount of sand and cement.

    Eg (5000 of those blocks) X (Factor) = Ym3 of mortar needed.

    Is there any factor for the amount of brickforce needed?


Comments

  • #2
    Bonzo Delaney
    Registered Users, Registered Users 2 Posts: 1,577 ✭✭✭Bonzo Delaney


    Out of boredem I reckon each 100mm block laid on edge uses about 0.000666m³ while on the flat uses about 0.0013 m³.
    (Standing edge + horizontal edge)x width of bed x height of bed = volume of mortar per block
    So say 5000 blocks on the flat x 0.0013 = 6.5m³ of mortar
    6.5 x rule of thumb figure of 1.6 to determine weight of sand =10.5 ton of sand.
    Approx 20 good standard mixer mixes to the m³.
    So 6.5 x 20 = 130 mixes
    Strong mix of half bag to the mix = 65 bags of cement
    Mightened be an exact science but wouldn't be too far out.


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