Sandy Drive project

   / Sandy Drive project #31  
Back in Czech republic I am originally from we used river sand (contains only small or none amount of clay) as a base for concrete. It doesn't retain water and stays somewhat "plastic" under the concrete. Because of that potential "pressure points" are minimized when the ground moves and/or pressure is applied so the concrete wouldn't crack under load. So it depends on the type of sand you have there.
 
   / Sandy Drive project #32  
how many feet of sand is their if theirs only 5ft or less you could scrap the sand off and angel the side of the driveway and then you would not have deal with the sand or 3000lb bags of concret
 
   / Sandy Drive project #33  
Tread70,

Do a google search on "soil cement".

Tilling Portland cement into soil is an excellent way to make smooth lanes that will withstand everything but heavy trucks. Doesn't take a lot of portland either. I did a driveway entrance that lept washing out, and that put the kibosh on it. Some grasses can grow in soil cement. I let bermdagrass grow on mine and mow it real low. Looks real nice.

The sand complicates things. The Portland normally gets the moisture it needs to set from soil. Another problem is sand doesn't pack or roll down smoothly, so maybe tilling up the road will pull up some soil. Any soil except black topsoil is suitable for making soil cement.
 
   / Sandy Drive project #34  
should work. get a dump truck to apply and water after. used to stabilize beaches by a simular method. anything that makes a larger piece than a grain of sand will stabilize the sand.break the bags in the dump truck and aply as desired
 
   / Sandy Drive project #35  
3000# bags sounds like 'super sacks' a re-useable bulk package w/ top loops for forklifts & an outlet valve on the bottom. I don't know if forks on a CUT FEL would lift them high enough to empty them, might need a jobsite forklift.

If this is the package type, figure on returning the MT sacks intact. I've had industrial raw materials dumpped from the bags into pnumatic hopper trailers, dockside w/ the folded sacks being shipped back for re-use while we delivered inland w/ the trailer. The sacks are expensive.

Soil Stabilization w/ portland cement is an old process. I've also seen landfill linings made w/ bentonite clay & excavated soil mixed in a pug mill. A thick mixture compacted w/ sheeps foot and vibratory rollers was installed under the bituminous layer w/ the leechate collection above. Very steep slopes and no rebar...

In NJ it is common to build road bases from formed and compacted sand but it is not beach sand. It has a more clay like color. Once compacted they lay the BCBC base layer of asphalt right onto the sand.

Coming from a cement producing area, I've seen a dump of 'stack dust' the cement dust that was collected by the stack pollution controls. They run a quarry dump out from the mill over top the pile & dump the new stuff at the end. It got really hard w/ just rain and traffic...
 
   / Sandy Drive project #36  
Hello Neighbors-

Say "Hey" to a new member....I've been lurking for a little while and have been enjoying every bit of it....what a great pool of talent you have here!

Anyway -

I am also considering using a "soil-cement" stablization for about 1,000 ft of sandy/clay driveway here in the Post-Oak Savanna of Texas...

I need to compare the cost of local available limestone base with portland cement....

Any advice is appreciated...

HAVEBLUE-
How did you calculate the amount of portland to add to the subsoil?
What did you use to till the cement in?
Did you have to add water?
What compaction method did you use?

Thanks-

T
 
   / Sandy Drive project #37  
best bet would be 12 inches of 5 inch breaker run with 3/4 gravel over top a couple inches thick. No way a couple inches concrete would ever hold up even with a solid base.
 
   / Sandy Drive project #38  
soil stabilization is a option you might in quer if they can mix in base rock as well
 
   / Sandy Drive project #39  
I used to get the scrap concrete free if I shoveled it, 5 bucks for a scoop load, made a pretty good base,see what a concrete place will do for you!
 
   / Sandy Drive project #40  
how deep is the sand could you sell/ give it away then dig draniage ditches to prevent a mud hole you find the right person to give it to they might even provide the machine:cool:
 

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