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re: Dirt work (buying sand)

Posted on 8/6/12 at 2:24 pm to
Posted by BarDTiger81
nurfeast lowsyana
Member since Jul 2011
15639 posts
Posted on 8/6/12 at 2:24 pm to
Posted by wes123
Slidell
Member since Dec 2010
229 posts
Posted on 8/6/12 at 2:27 pm to
Was going to go with crushed concrete, but that was almost $400 per load. Not sure i can just find that much debris to fill this void. Even so, how the heck would i haul it?
Posted by Hammertime
Will trade dowsing rod for titties
Member since Jan 2012
43030 posts
Posted on 8/6/12 at 2:29 pm to
quote:

Just had my bulkhead replaced, most of my backyard had washed away. Someone recommended that i put down sand first then clay. Would you recommend something different? I have no clue.
Doesn't sound right to me. If the sand is closer to the water, is will fill with water and swell, and dry up when the water is low and put holes in your yard.

I would pack it with clay on the bottom, and put regular dirt the top 12 inches. The clay will pack tight and hold the bulkhead from moving any.

I am not a pro though, it just seems that you couldn't pack clay on top of sand, and grass doesn't really favor clay
Posted by wickowick
Head of Island
Member since Dec 2006
45820 posts
Posted on 8/6/12 at 2:34 pm to
Post a couple of pics so we can see the damage...
Posted by Jester
Baton Rouge
Member since Feb 2006
34370 posts
Posted on 8/6/12 at 2:36 pm to
quote:

Doesn't sound right to me. If the sand is closer to the water, is will fill with water and swell, and dry up when the water is low and put holes in your yard.

I would pack it with clay on the bottom, and put regular dirt the top 12 inches. The clay will pack tight and hold the bulkhead from moving any.


This just sounds wrong. I'm no civil engineer, but I don't think silicate expands when wet. Clay, on the other hand, definitely has some expansion issues.
Posted by 34venture
Buffer Zone
Member since Mar 2010
11369 posts
Posted on 8/6/12 at 2:37 pm to
quote:

Post a couple of pics so we can see the damage.


I concur
Posted by Jester
Baton Rouge
Member since Feb 2006
34370 posts
Posted on 8/6/12 at 2:37 pm to
quote:

Post a couple of pics so we can find you



Don't do it.
Posted by Puck82
Baton Rouge
Member since Mar 2009
23648 posts
Posted on 8/6/12 at 2:38 pm to
quote:

Mississippi River sand delivered was about $30/yd a couple months ago.


Holy shite. That is some expensive river sand. How far was the haul?

And like a previous poster said you are going to need closer to 500 or 600 truck yards of material after compaction.
Posted by Puck82
Baton Rouge
Member since Mar 2009
23648 posts
Posted on 8/6/12 at 2:39 pm to
quote:

This just sounds wrong. I'm no civil engineer, but I don't think silicate expands when wet. Clay, on the other hand, definitely has some expansion issues.


Sand becomes tighter when it gets wet. You get better compaction. Clay will swell and shrink with moisture content.
Posted by wes123
Slidell
Member since Dec 2010
229 posts
Posted on 8/6/12 at 2:43 pm to
I will take some pic's this evening, but does anyone know how much sand goes for? Is $10/yard delivered about right?
Posted by Puck82
Baton Rouge
Member since Mar 2009
23648 posts
Posted on 8/6/12 at 2:49 pm to
Yeah that is about right for pump sand depending on the haul distance. For short hauls you might be able to find some around the $7 range
This post was edited on 8/6/12 at 2:52 pm
Posted by tenfoe
Member since Jun 2011
6854 posts
Posted on 8/6/12 at 2:52 pm to
quote:

Holy shite. That is some expensive river sand. How far was the haul


That was from around Donaldsonville to Cutoff. It wasn't a short haul, but there is not really a short way to get it to Slidell either if that's where this is going.
Posted by Geaux Smoke
Aspen, California
Member since Aug 2010
1977 posts
Posted on 8/6/12 at 2:55 pm to
my buddy works for southern ag. cheap fill sand is running $3-$4/yd in BR plus $9/yd in freight. he suggested spencer green @ standard gravel. he has a pit in slidell so the freight would be much cheaper. hope this helps
Posted by wes123
Slidell
Member since Dec 2010
229 posts
Posted on 8/6/12 at 3:11 pm to
quote:

my buddy works for southern ag. cheap fill sand is running $3-$4/yd in BR plus $9/yd in freight. he suggested spencer green @ standard gravel. he has a pit in slidell so the freight would be much cheaper. hope this helps


Awesome, thanks for the help
Posted by Hammertime
Will trade dowsing rod for titties
Member since Jan 2012
43030 posts
Posted on 8/6/12 at 3:11 pm to
quote:

This just sounds wrong. I'm no civil engineer, but I don't think silicate expands when wet. Clay, on the other hand, definitely has some expansion issues
River sand is really silt. It has just enough space for water to get in there, and for it to leave. It is much harder for water to get into clay because the particles are smaller. IIRC, clay has some electrostatic force holding it toghtly together, more so than silt, so it packs. When the water leaves silt, it causes it to settle and makes divets all over yards. Most places anywhere near the river have this problem.

My yard looks like the surface of the moon most of the year.

Most new houses are built on clay because it packs very well and isn't affected by water as much
Posted by poule deau
Member since Jan 2009
1406 posts
Posted on 8/6/12 at 3:14 pm to
quote:

I suggest concrete, broken bricks, cinder blocks, whatever you can get to fill the void.


I would not suggest this. If you ever have to dig it up, it will be a nightmare.

The purpose of layering with riversand first is to allow water to drain through your backfill. Clay and dirt hold water thus increasing the amount of hydrostatic pressure on your bulkhead.

I have seen many walls blown out because the fill material did not allow water to drain from behind the wall.

Layer with sand first then use topsoil for the top 1.5' to 2'.

What kind of sheetpile did you use?
Posted by wes123
Slidell
Member since Dec 2010
229 posts
Posted on 8/6/12 at 3:28 pm to
quote:

What kind of sheetpile did you use?


S-850 Shoreguard 16'. They had to cut 4 feet of the top though cause they couldn't get them down any further. That sucked watching that money go to waste.
Posted by poule deau
Member since Jan 2009
1406 posts
Posted on 8/6/12 at 3:37 pm to
quote:

S-850 Shoreguard 16'


Good stuff.

4' is a lot of wasted sheet. That does sting.

Do you have at least half of the sheet below the mudline and half above?

Check out the CMI (the company that makes Shoreguard)website. They have good information concerning backfill requirements.

LINKlook around page 69.
Posted by wes123
Slidell
Member since Dec 2010
229 posts
Posted on 8/6/12 at 3:39 pm to
Thanks,

quote:

Do you have at least half of the sheet below the mudline and half above?

Yes
Posted by Jester
Baton Rouge
Member since Feb 2006
34370 posts
Posted on 8/6/12 at 4:10 pm to
quote:

My yard looks like the surface of the moon most of the year.


I've broken several wheels on my lawnmower because of the fantastic work done by the developer in my yard. Aside from major drainage issues in a 10 year old house, I'm pretty sure they had an Abrams tank parked on the lawn.
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