types of aggregate??

Discussion in 'Hardscaping' started by STRINGALATION, May 26, 2009.

  1. STRINGALATION

    STRINGALATION LawnSite Senior Member
    Posts: 777

    well first i have searched and i have to ask because i cannot find it worded right.


    i hear terms like crusher run, 57, fines, screenings , clean and the like

    im sure i'm about to put up a small 2 course and cap 40' wall

    here 57 gravel is what i believe is used to back fill. its clean larger sorta drive way gravel. now for my base i'm planning on using what is called dense grade here. i have used it for parking pads. once it gets wet and sets up its like a slab was poured. not sure what else to use this seems fine to me. any help welcomed
     
  2. NewHorizon's Land

    NewHorizon's Land LawnSite Senior Member
    Posts: 690

    You are correct. Use the dense grade for the base and the clean for the drainage stone.

    Dont use fines or screenings as the bulk of your base. It is ok to use for leveling (last 1/2" to 1").
     
  3. STRINGALATION

    STRINGALATION LawnSite Senior Member
    Posts: 777

    let me get this correct. at the yard there is a pile of fines ergo dense grade with out the larger chucks. i ask because you say dont use fines for the bulk. as if i could buy the dese grade and then a load of fines to put on top of the dense grade. if i sound like i'm making this difficult i apologize but when i go to the yard i visit there amaybe 40 stacks of different aggregate. this place is not small they off load from barges so it gets cofusing as to which ones everyone is refering to....i still dont get the diff. between the sand for leveling and the finishing patio sand you know what you sweep with so. i need to read more
     
  4. STRINGALATION

    STRINGALATION LawnSite Senior Member
    Posts: 777

    ooh and love your logo
     
  5. NewHorizon's Land

    NewHorizon's Land LawnSite Senior Member
    Posts: 690

    Thanks.



    You want sand if you are doing a patio. This should be a washed concrete sand. (C33 spec). You do not want mason's sand or play sand. These are to fine and hold to much moisture plus other things that make them unsuitable.

    Your dense grade aggregrate should have 3/4" and every stone size smaller than that including "dust".

    Your leveling "bed" for walls should be stone dust or the smallest size stone you can get. You could use sand for the leveling bed but the stone seems easier to work with.

    Any more questions just ask
     
  6. STRINGALATION

    STRINGALATION LawnSite Senior Member
    Posts: 777

    alright one more since this is only a 2course and cap wall that is just holding back and really just edging a 6" raised bed should i still run a drain tile. it seem the gravel will be fine but is it standard procedure to run drain tile.
    thanks very much.

    i want this wall to be really nice. i have seen enough wavy walls around here i want mines to look like a company installed it. i dont see alot of caps here and see everything from blocks stacked directly on top of each other without over lap, blocks upside down because the lip wont let it lay flat ,you name it trying to stand out here
     
  7. NewHorizon's Land

    NewHorizon's Land LawnSite Senior Member
    Posts: 690

    Are you saying with the 6" buried block the wall is still only 6" out of ground
     
  8. STRINGALATION

    STRINGALATION LawnSite Senior Member
    Posts: 777

    the blocks are 6" plus the cap. i will bury maybe 2" of the base block. . the 6" i was refering to was the height of the beds. i plan on elevating with about 2 yards of garden mix.
     
  9. NewHorizon's Land

    NewHorizon's Land LawnSite Senior Member
    Posts: 690

    Even though its a short wall you should still bury a whole block. It will add stability and help keep everything level in years to come.
     
  10. STRINGALATION

    STRINGALATION LawnSite Senior Member
    Posts: 777

    WELL. thanks for all the help. the wall is mostly finished. will bury next time. my supplr place did not have fines so i went with concrete sand which was more than powder. so far the job has gone ok. a little disappointed on my leveling skills. i also have to figure out how to cut a few caps. to make the turns and one end i want flush with the wall. gonna remove a small section aN raise it. the plate made that dense grade fell like i was walking on a side walk i could feel the dipS and rises. i have to be more aware of plumb. i was flat but its not plumb. pitches forward a tad bit. my first wall and man that was tough. you can check out the whole project on my thread AN OLD UPSELL

    AGAIN THANKS


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