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Old 04-25-2005, 10:26 PM
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Popper357 Popper357 is offline
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Join Date: Nov 2004
Location: Kansas City MO
Posts: 217
Leveling the base and base course on retaining walls

What's a good method for leveling the base and base course of retaining walls using seg blocks? I interned on a job and we layed rock and buckshot gravel, then compacted it and roughly leveled it with a 4' level, then layed and leveled each block side to side and front to back. Used the 4' level to check out how they compared.

Worked great, I thought. Was time consuming though. Is there any way to level the buckshot gravel after compacting so that it's perfect and ready for laying blocks? I can't think of anything right now. I've never used any laser equipment, do those work?

I bet we spent eight man hours laying the base course with versa lock, 45ft. long. Probably faster next time. Would be nice to see what others think. (I think, LOL)
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Old 04-26-2005, 09:52 PM
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Rex Mann Rex Mann is offline
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Join Date: Nov 2000
Location: Phoenix, Arizona
Posts: 621
We shoot elevations.
Put in grade stakes
Excavate our trench
Install our aggregate base material using string lines and or laser level
Compact our base material
Check with the laser
Mix 1-part portland cement to 5-parts concrete sand
Screed this mixture on top of your compacted base just as if laying pavers
Start laying your units

The sand cement mixture, drymix, will make it much easier and faster laying down that first course. If you work where there is high humidity, then mother nature will harden the drymix over night. However, here in Phoenix with very low humidity, we have to sprinkle a little water on it.

BTW: we have never had any call backs or failures using this method.

Peace,

ArizonaPavers.Com
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  #3  
Old 04-27-2005, 08:05 AM
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neversatisfiedj neversatisfiedj is offline
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Join Date: Jan 2005
Location: Hampstead,MD
Posts: 987
I just get my crusher run as level as I can then screed a thin layer of sand over base to get level, check with torpedo level on each block.
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Old 04-30-2005, 08:54 AM
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aries aries is offline
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Join Date: Jan 2004
Location: nj
Posts: 334
I use a thin layer of stone dust on top of the crush stone to level it out pack's better than just using sand and wont wash out as easy!
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  #5  
Old 04-30-2005, 10:00 AM
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kootoomootoo kootoomootoo is offline
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Join Date: May 2000
Location: Obama Land.
Posts: 4,374
Same as above.....use fines.
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