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Hardcore & concrete quantities

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  • 26-10-2009 9:05pm
    #1
    steamjetjoe
    Closed Accounts Posts: 396 ✭✭


    Hello all,

    Im in need of some help with hardcore & concrete quantities for the floor of my shed.

    The shed is 18x13 foot internally. :confused:

    I haven't a clue about the dept I need the hardcore or concrete:confused:

    Thanks
    Joe


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    #2
    Palmy
    Registered Users Posts: 350 ✭✭Palmy


    Normally the floor on a house (concrete slab) should be .150mm thick,If your doing a shed you will only need about .100mm thick as long as your not planning to park a car in there.So to measure your quantites for the concrete just add up your area and x .100mm to get you cubic meters.:o


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    #3
    steamjetjoe
    Closed Accounts Posts: 396 ✭✭steamjetjoe


    Palmy wrote: »
    Normally the floor on a house (concrete slab) should be .150mm thick,If your doing a shed you will only need about .100mm thick as long as your not planning to park a car in there.So to measure your quantites for the concrete just add up your area and x .100mm to get you cubic meters.:o

    Ok, im thinking 3 inch of concrete will do. Nothing heavy will be on it. My calculations put that at just under 2 m3 of concrete.

    Any idea the break down of sand,gravel and bags of cement:confused:


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    #4
    Martron
    Registered Users Posts: 2,930 ✭✭✭Martron


    hope i did this right

    have a read here covers what i think you need

    http://www.boards.ie/vbulletin/showthread.php?t=2055616578


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    #5
    steamjetjoe
    Closed Accounts Posts: 396 ✭✭steamjetjoe


    Martron wrote: »
    hope i did this right

    have a read here covers what i think you need

    http://www.boards.ie/vbulletin/showthread.php?t=2055616578

    Thanks martron, I forget what ive posted in the past:o

    But im still confused as how to work out my quantities.
    What formula did you use:confused:


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    #6
    Martron
    Registered Users Posts: 2,930 ✭✭✭Martron


    ha ha thats funny i dod not even notice. i forget what i post sometimes too

    i have used a mix of 1:2:3

    1 part cement

    2 parts sand

    3 parts coarse aggregate


    so if you are looking at 2 m3 ( and concrete on average has a density of 2400kg per m3 )

    this means that 2 m3 of concrete will weigh roughly 4.8 tonnes 4.8 / 6 ( this is the number of parts in the mix) = 800 kgs

    so this gives us the following weights

    1 part cement = 800kg ( divide this by 25 gives you the number of bags = 32)

    2 parts sand = 1600kg

    3 parts coarse aggregate = 2400kg

    . Hope i worked this out for you ok.

    now the quantities do not take into account for the weight of the water


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    #7
    steamjetjoe
    Closed Accounts Posts: 396 ✭✭steamjetjoe


    Martron wrote: »
    ha ha thats funny i dod not even notice. i forget what i post sometimes too

    i have used a mix of 1:2:3

    1 part cement

    2 parts sand

    3 parts coarse aggregate


    so if you are looking at 2 m3 ( and concrete on average has a density of 2400kg per m3 )

    this means that 2 m3 of concrete will weigh roughly 4.8 tonnes 4.8 / 6 ( this is the number of parts in the mix) = 800 kgs

    so this gives us the following weights

    1 part cement = 800kg ( divide this by 25 gives you the number of bags = 32)

    2 parts sand = 1600kg

    3 parts coarse aggregate = 2400kg

    . Hope i worked this out for you ok.

    now the quantities do not take into account for the weight of the water

    :eek:Warning Warning, brain overload:eek: Just kidding, Thanks again. Ill mull those figures over in my head and see what I come out with:)


    Ok so, ill need 4 ton of sand/aggregate mix. Or 4 ton bags of sand/aggregate mix.


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