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Lip on SRW Blocks Not Important?

Discussion in 'Hardscaping' started by JimLewis, Jan 25, 2012.

  1. larryinalabama

    larryinalabama LawnSite Fanatic
    Messages: 19,244

    My opinion is if you purchase a block with a lip and the lip is not there the masoniry supply store should replace the block, thats what you and your customer paid for.
  2. DVS Hardscaper

    DVS Hardscaper LawnSite Fanatic
    Messages: 6,576

    Amen! End of story! BEST post of the WEEK! :drinkup:

  3. TomG

    TomG LawnSite Senior Member
    Messages: 674

    Ok so now it "helps" wow that was edited fast. lol:rolleyes:

    And I'd love for you to point out a post of mere speculation from me.
  4. DVS Hardscaper

    DVS Hardscaper LawnSite Fanatic
    Messages: 6,576

    Of course it "helps". Each compoment of the block is part of a system. Same with a paver, each component of the paver is part of the system.

    I seem to recall someone writing posts with someone making some presumptions as recent as this past fall :)

    ok, everyone QUITE - the MD/Duke game is on

  5. DVS Hardscaper

    DVS Hardscaper LawnSite Fanatic
    Messages: 6,576

    Heres the photogragh.

    bad wall.jpg
  6. TomG

    TomG LawnSite Senior Member
    Messages: 674

    DVS what year did you get NCMA certified?
  7. JimLewis

    JimLewis LawnSite Fanatic
    Messages: 6,872

    Ok. So the lip helps if you otherwise construct the wall totally wrong? That's your point???

    If something is only needed because you screwed up everything else, then it's not really needed. What's needed is to just to build it the right way in the first place. You don't rely on a stop gap to save the day. You should just build it correctly and then you don't ever need the stop gap.

    You gotta be willing to be a little open minded and admit you don't know it all sometimes, Andrew. It helps to get the facts too, rather than just come to your own conclusions and assume that you are always right. I thought for sure I knew what that lip on the concrete blocks was for and I thought I knew what the pins inside the keystone blocks were for too. But I was wrong. At least I can admit it.

    Admitting you were wrong isn't a sign of weakness. It's a sign of maturity.
  8. SVA_Concrete

    SVA_Concrete LawnSite Senior Member
    Messages: 467

    Easy to believe the lip is of no structural significance. Friction is a powerful thing.

    Friction stops a 80 thousand pound truck, no cogs or lips. Friction holds buildings down in the ground from wind uplift as well as holds buildings up from sinking (friction piles)

    Structural engineering fascinates me.

    If those little lips can break so easily during shipping.... would we really rely on them for structure?

    Going back to the original problem with the supplier, they should make a statement prior to purchase to the effect of broken lips are not a returnable defect... yards yadda
    Posted via Mobile Device
  9. crazymike

    crazymike LawnSite Senior Member
    from Ontario
    Messages: 452

    Any of the engineers that have designed large commercial walls have told me that friction is what stops them from moving.

    I've used the brooklin concrete/armtec landmark blocks. They are massive blocks, similar to mafia blocks. The engineer basically said, if it gets to the point where the earth can move the block to break the friction, it will also just ride the ledge right up and over. Basically the ledge is just for alignment.


    Granted, these are massive blocks, 2' x 5' blocks. But I imagine the same principal applies when scaled down.


    All that said, if that many ledges chipped off, I would take them back. The ledges might be unnecessary, but it would make me question the integrity of that batch of blocks. The ledges might fail now, the entire block might start to chip apart 12 months from now.
  10. DVS Hardscaper

    DVS Hardscaper LawnSite Fanatic
    Messages: 6,576

    Jim buddy, your post was a little extreme. I never said for sure what the lip was for, look at my wording. So I am not wrong or right. Our blocks don't have lips. Or pins, Jim. I know walls are all about gravity. My bother in law is a geotechnical engineer, I have access to all the facts I want :)

    When I'm wrong I admit it. And I'm very open minded, and my archives of posts here reflect that. I don't write 6 long paragraph posts like you do Jim, and I don't read 6 Paragragh longs posts either, I skim them. Telling me that I cant admit it and telling me I'm not open minded - is a sign that you're stressed and dealing with it by lashing out at others :)

    I'm merely putting another spin on the purpose of lips. To stimulate thought and provoke conversation. But thanks for your official evaluation of me :)

    And Jim, our walls don't fail. Of the hundreds we've done, and weve probably done more than you, we had (1) 30" high wall fall because of a seasonal spring behind the wall that we were not aware of. So I'm not sure what you're meaning about failing walls.

    Like I say, our block doesn't have lips. Or pins. :)
    Posted via Mobile Device
    Last edited: Jan 26, 2012

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