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How much sand and cement

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  • 24-06-2019 4:12pm
    #1
    DJ98
    Registered Users Posts: 1,315 ✭✭✭


    Building a wall using 350 blocks, how much sand and cement would be required for this job?


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    #2
    PhilOssophy
    Registered Users Posts: 2,114 ✭✭✭PhilOssophy


    Blocks on the flat or side? I.e. is the wall 215mm or 100mm thick


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    #3
    DJ98
    Registered Users Posts: 1,315 ✭✭✭DJ98


    PhilOssophy wrote: »
    Blocks on the flat or side? I.e. is the wall 215mm or 100mm thick
    215, 9 inch cavity blocks


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    #4
    PhilOssophy
    Registered Users Posts: 2,114 ✭✭✭PhilOssophy


    I'm guessing that the area you need covered is roughly :
    0.44x0.215x350 + 0.1x0.215x350 = 40.63m2
    Allowing for a 10mm thick mortar, that's 0.46 cubic meters of mortar.
    Allow for some loss, depending on how tidy you are, I'd say about a half a cubic meter of mortar roughly
    Allow then for 1:4 cement to sand, I'd be saying 16 x 25kg bags of cement and 54 x 25kg bags of sand.
    That's a guess on my part though so wait until somebody else confirms! :)


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