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  #1  
Old 01-24-2011, 01:18 PM
tamo tamo is offline
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Gravel fill behind SRW.

I've seen people use both 3/4 minus and clean gravel without fines as fill behind retaining walls.

What is the best material to use? I'd think the clean gravel for better drainage, but I've seen and heard othewise.

Thanks.
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  #2  
Old 01-24-2011, 01:45 PM
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STL Ponds and Waterfalls STL Ponds and Waterfalls is offline
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We alway's use clean.
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Old 01-24-2011, 04:50 PM
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Bru75 Bru75 is offline
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Definitely clean, you don't want it to hold water.
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Old 01-24-2011, 06:07 PM
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BrendonTW BrendonTW is offline
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Clean. The NDS representative came and spoke in a class I was in a few weeks ago and said to use river rock due to the much bigger voids, cleanliness, and resistance to absorb water. I think that's ideal, but probably not economical.
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Old 01-30-2011, 09:20 PM
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NewHorizon's Land NewHorizon's Land is offline
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Your retaining walls should be engineered. The engineer will tell you what material to use. Clean is always the best bet.
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  #6  
Old 01-31-2011, 08:06 PM
jonesy5149 jonesy5149 is offline
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Well we do 3/4 washed crushed rock and with 150 fabric and then 500x on the top and 6'' to 12'' of gravel. compacted about 75% proctor then mulch or loam.
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Old 02-05-2011, 02:35 PM
PatriotLandscape PatriotLandscape is offline
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75% proctor? How did you test that?

3/4 dropped in a hole is already 90% without running the compactor on it.
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  #8  
Old 02-05-2011, 05:45 PM
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DVS Hardscaper DVS Hardscaper is offline
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Quote:
Originally Posted by PatriotLandscape View Post

3/4 dropped in a hole is already 90% without running the compactor on it.
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Patl-scape, about a month ago I typed the same thing and some guru here told me i wrong!


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  #9  
Old 02-05-2011, 06:10 PM
jonesy5149 jonesy5149 is offline
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Quote:
Originally Posted by PatriotLandscape View Post
75% proctor? How did you test that?

3/4 dropped in a hole is already 90% without running the compactor on it.
Posted via Mobile Device
the 3/4 rock is 90% but the 6 to 8 inchs of grave i rap at the top befor the loam or mulch i just get the proctor to 70% about 4 passes with the 7500 bowmag. we test with a rod and a .5 lbs of weight and it will sink about 1/4 passed the line. we had are sand and gravel tested last year to get a device to measure it. the sand pit we bought has lots of great products in it.
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  #10  
Old 02-05-2011, 06:15 PM
jonesy5149 jonesy5149 is offline
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How are you guys doing for the compaction rate?? Tool or guess ??
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