Getting ready to fill for my shop floor. Limestone is not a local material has to be trucked in, it's available for $26 a ton in number 57 washed. I can get local queried 57 washed for $12 a ton. I will be using 50 tons so the local gravel has some decent savings. The quarry said its crushed just concerned its not as angular as limestone I have used in the past. Will I have any issues consolidating it? I have a jumping jack and a plate compactor to use on it in multiple lifts.
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Number 57 gravel crushed enough?
- Thread starter plout99
- Start date
mcbane
Well-known member
It appears that aggregate numbers are regional, just like Chinese food. You might like #17 (Mongolian beef) in one place but hate it in another (prawns in mayonnaise).
In any case, you want to use vibratory plate for gravel and not jumping jack.
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In any case, you want to use vibratory plate for gravel and not jumping jack.
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Pluribus
Well-known member
Getting ready to fill for my shop floor. Limestone is not a local material has to be trucked in, it's available for $26 a ton in number 57 washed. I can get local queried 57 washed for $12 a ton. I will be using 50 tons so the local gravel has some decent savings. The quarry said its crushed just concerned its not as angular as limestone I have used in the past. Will I have any issues consolidating it? I have a jumping jack and a plate compactor to use on it in multiple lifts.
we use a lot of 57, its a 3/4 rock with no fines, great for wet area, its doesnt compact. just keeps rolling around, but that itself is not a problem. if you want cheap, get crush concrete
For a shop floor, whether or not it will have a floor poured over it someday, I think I'd want something that would compact & key together better. Price might be attractive, but if it doesn't do the job, it could cost you big time in the long run. Hopefully someone familiar with your local soil conditions will chime in with a specific recommendation, or maybe you can ask around your circle of acquaintances to see what's typically used there.
theoldwizard1
Well-known member
The quarry said its crushed just concerned its not as angular as limestone I have used in the past. Will I have any issues consolidating it? I have a jumping jack and a plate compactor to use on it in multiple lifts.
That is NOT crushed ! It will not compact well.
TTMotorsports
Well-known member
ABC is $10 a ton here and compacts like concrete with some weight and water on it.
Miss the Pontiacs
Well-known member
Would you not want angular or sharp edged aggregate instead of the rounder stone. Rounded material does not pack as others have already mentioned.
WNYflyer
Well-known member
Also look into ODOT 304 material which is used for compacted backfill under roads and is also often used under slabs on grade. Don't know how that would worked out though if you are not topping it with concrete or asphalt.
Dzlpete
Well-known member
If it is inside concrete walls, and the soil/ gravel under is well drained and solid, just fill with the inexpensive stuff.
It is stone, it will not compact any real amount.
It is stone, it will not compact any real amount.
madison069
Well-known member
Getting ready to fill for my shop floor. Limestone is not a local material has to be trucked in, it's available for $26 a ton in number 57 washed. I can get local queried 57 washed for $12 a ton. I will be using 50 tons so the local gravel has some decent savings. The quarry said its crushed just concerned its not as angular as limestone I have used in the past. Will I have any issues consolidating it? I have a jumping jack and a plate compactor to use on it in multiple lifts.
If you are putting that down as a base for another material such as concrete it would be ok, but I'd choke it on top with some fine to keep concrete from settling inbetween the rocks. If you're using the rock as a floor I would look for some thing else then those round rocks.
Guess what I'm saying is what is your final goal for the floor?
jives
Well-known member
A good description from the concrete network:
https://www.concretenetwork.com/concrete-subgrades-subbases/
With that said, our 5" wire mesh reinforced slab (32 x 42, with control cuts) has not moved or cracked one bit in 5 years. We had to bring in 240 tons of bank run gravel to level the site, which was compacted by a heavy equipment multi-ton road roller in 5" lifts. A final layer of compacted crusher run was topped by a few inches of pea gravel. The pea gravel does not compact, but served as a capillary break. No problems whatsoever, likely because of the extreme compaction done to the subbase.
https://www.concretenetwork.com/concrete-subgrades-subbases/
With that said, our 5" wire mesh reinforced slab (32 x 42, with control cuts) has not moved or cracked one bit in 5 years. We had to bring in 240 tons of bank run gravel to level the site, which was compacted by a heavy equipment multi-ton road roller in 5" lifts. A final layer of compacted crusher run was topped by a few inches of pea gravel. The pea gravel does not compact, but served as a capillary break. No problems whatsoever, likely because of the extreme compaction done to the subbase.
Always try to use what your local govt. specs for their roadway base. It’s been tested, it exceeds the engineering requirements and the gravel plants who are listed as “approved” by the DPW typically keep the consistency/quality high.
My advice, absolutely go for the limestone.
Compaction of subgrade and base is EVERYTHING.
My advice, absolutely go for the limestone.
Compaction of subgrade and base is EVERYTHING.
hotrod1968
Banned
We haul 100s of thousands of tons of rock here in Oregon..... I can assure you a government spec is not always the best. Talk to your local contractor or concrete guy. ( many times a spec is called for by the government that in the real world would never be used forcing the tax payer to pay a much higher price for a product.)Always try to use what your local govt. specs for their roadway base. It’s been tested, it exceeds the engineering requirements and the gravel plants who are listed as “approved” by the DPW typically keep the consistency/quality high.
My advice, absolutely go for the limestone.
Compaction of subgrade and base is EVERYTHING.
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The shop will have a floor planning to pour it by mid October maybe sooner. I used 304 for the driveway up to the shop and it packed great. My concern with usin something with fines is frost heave. The ground is clay and drys out so-so when it's wet. There is no concensus on the internet either, some say sand, or pea gravel or 57 or something with fines for fill. I have a BIL that is in the business and is going to help with the pour but he works in southern Florida and has no experience with frost heave. The slab will be 6" above grade on the low side and 14" above on the high side so could I put drainage tile around the perimeter like a house foundation and daylight it to get rid of any water?
We haul 100s of thousands of tons of rock here in Oregon..... I can assure you a government spec is not always the best. Talk to your local contractor or concrete guy. ( many times a spec is called for by the government that in the real world would never be used forcing the tax payer to pay a much higher price for a product.)
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I’ve worked for the largest engineering companies in the world, I’m currently on the largest transportation project in America 9.5B.
I can assure you that the local contractor or concrete guys know just enough to stay out of trouble, but sometimes they don’t even know that much.
Empirical vs. anecdotal, there is a difference...
hotrod1968
Banned
Government never over specs things,over pays for things,engineers a **** product....its a shop floor you even going there makes my point....I’ve worked for the largest engineering companies in the world, I’m currently on the largest transportation project in America 9.5B.
I can assure you that the local contractor or concrete guys know just enough to stay out of trouble, but sometimes they don’t even know that much.
Empirical vs. anecdotal, there is a difference...
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