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Strength of blockwork wall

  • 20-02-2024 02:17PM
    #1
    REFLINE1
    Registered Users, Registered Users 2 Posts: 463 ✭✭


    Hi, how would I calculate what height of water, a standard unreinforced concrete blockwork wall (mortar joints, block on flat 215mm thick) could resist without collapse? thanks



Comments

  • #2
    AmpMan
    Registered Users, Registered Users 2 Posts: 237 ✭✭AmpMan


    https://www.boards.ie/discussion/2058337038/strength-of-blockwork-wall

    I'm into koi ponds and this question comes up all the time for pond builders.

    Usually turning into massive debate .

    The answer is that the ground is doing most of the heavy lifting. Did you ever see those skinny flood panels holding back the sea?

    Or a glass window with water up to the top holding back a flood!

    I've seen ponds around 2m deep build with 4" blocks on the flat without issue.

    My own is cavity blocks with every second cavity filled with concrete & tied to a ring foundation, way stronger than it needed to be.



  • #3
    justmehere
    Registered Users, Registered Users 2 Posts: 172 ✭✭justmehere


    This is from AI, would be interested in knowing what real engineers think:

    To calculate the height of water a standard unreinforced concrete blockwork wall (215mm thick) can resist without collapsing, the key factor is the relationship between hydrostatic pressure from the water and the wall's compressive strength. Here's a step-by-step explanation:

    image.png

    Citations:

    [2] https://www.mdpi.com/2076-3417/13/22/12306
    [3] https://lignacite.co.uk/water-resistance-of-concrete-blocks/
    [4] https://www.fao.org/4/s1250e/s1250e0i.htm
    [5] https://www.osti.gov/servlets/purl/966219



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