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Planning on a 27' x 21 concrete patio slab for the backyard. Am taking estimates from local contractors.
I know that 6 sack has more "compressive strength" than 4 sack mix.
One of the contractors mentioned 4-sack. I know 4-sack is less expensive than ...
Started by hammerlane on
, 12 posts
by 6 people.
Answer Snippets (Read the full thread at diychatroom):
From a compressive strength stand-point or dump....
For a patio, 3000 psi concrete should be adequate.
For a patio, 3000 psi concrete qualities.
Is not critical, since some suppliers will use admixtures or fly ash to their mix .
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General contractor has put in 2 garage pads with footings and the bill is quite high. We were referred to him & I'd gotten prices from the other gc's in the area so we knew approx how much it should be.
The concrete alone was a total of $9290 w/concrete...
Started by martin1791 on
, 15 posts
by 9 people.
Answer Snippets (Read the full thread at diychatroom):
Around here all driveways 4" or so thick (sometimes 6", but no "footings") are over 4000 psi and air entrained....
The concrete for durability.
The excavating, compacted base and forming costs in addition to the amount of concrete needed.
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Quote: : The "elements" may be too vague of a term. In reality, anywhere there is a chance that the slab may be subjected to moisture & freeze/thaw cycles, air entrainment is necessary. The OP stated this was a "barn", which could certainly be subjected...
Started by Canarywood1 on
, 6 posts
by 3 people.
Answer Snippets (Read the full thread at diychatroom):
Of course air entrainment is not common in FL and the cost to the money involved by increasing... .
That is why 4000 psi in very common or normal.
Of course air entrainment.
That is why 4000 psi in very common or normal.
Is a different world.
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I am new to this forum and may not have the correct construction terminology, so here goes..
Busy building an outdoor barbecue with concrete block and will make a counter top from concrete. I have already built the 4 walls (rectangular). The corner blocks...
Started by howzitmybro on
, 4 posts
by 3 people.
Answer Snippets (Read the full thread at diychatroom):
You really should not use either concrete or mortar for a good job either concrete or mortar for a good job even though people can get away with it in the short term engineers limit the maximum strength....
A while (hour or so) and top it off.
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Hello.
Buying a new machine. Over the last 10 years I have plumbed two 4 at 4 machines together to get a grand total of 8 GPM at 4000 psi. Im tired of the issues associated with plumbing two machines together. Im debating on a 10 GPM at 3000 PSI VS. an...
Started by Gunnerm1 on
, 7 posts
by 5 people.
Answer Snippets (Read the full thread at thegrimescene):
This machine will be for....
An 8 GPM at 3500 PSI.
Im debating on a 10 GPM at 3000 PSI VS.
Im tired of the issues associated with plumbing two machines together .
Two 4 at 4 machines together to get a grand total of 8 GPM at 4000 psi.
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I'm building a 40 ft X 40 ft pole barn. I want a concrete floor. So I need to hire a concrete contractor to do it.
I have seen some pretty crappy concrete jobs. I've also heard after-the-fact horror stories about concrete contractors cutting corners. ...
Started by Crafter_Man on
, 22 posts
by 10 people.
Answer Snippets (Read the full thread at straightdope):
That doesn't help going in but you could accompany the inspector on the inspection and see if he/she thinks... .
Strength (in PSI after concrete? Mine did.
If the concrete will be poured and struck off by hand, or in very hot weather.
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Just a side note thread.... Internet is too vague so I thought I would through this out to us....
I am pouring 3500 psi concrete in my foundation supports on Thursday this week? Ambient temperature currently is 18 degrees celcius, the humidity here this...
Started by John Raabe on
, 11 posts
by 5 people.
Answer Snippets (Read the full thread at countryplans):
They will be tender for a week or so, the 3500 psi....
The plastic will keep them damp, the concrete itself will cure fine.
My posts understanding....
Never let curing concrete dry, keep it damp for at least a week, preferrably a month.
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My pond is going to be 12'x10'x32" completely undergound and flush with my patio concrete slap and stone cap.
Please see attached map.
What should be the thinkness of concrete bottom floor?
What is the best concrete block for my application?
I am planning...
Started by Nathan Tran on
, 13 posts
by 9 people.
Answer Snippets (Read the full thread at koiphen):
I still prefer a shallow.
4-6" floor slab depending on psi slopes or funnels seen deep concrete koi pond and shallow natural garden gold fish
pond.
Make sure the conc.
It flush with patio slab.
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First off, I've never worked with concrete except as a kid helping my dad set the swingset in, and some posts under our back porch steps.
I can't find much information on multiple pours of concrete. The consensus is that one monolithic pour is best. But...
Started by Captain Ledd on
, 14 posts
by 11 people.
Answer Snippets (Read the full thread at therangerstation):
I was going to add some rebar, but I have concrete....
We were looking at 4000-5000psi stuff.
I had them add the fiberglass fibers and also bought the 4500 psi concrete instead of 3000 psi 3000 psi concrete.
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I got a question about concrete slab repair. I have poured slabs for about 14 years now and it appears i have my first cracking slab. My question is on how to fix it. It's a large patio slab with no load on top of it. The majority of the slab is 6 inch...
Started by german on
, 17 posts
by 13 people.
Answer Snippets (Read the full thread at contractortalk):
When you start with 4000psi concrete you the psi.....
The moxie triples the flexural strength and doubles the psi.
Every commercial job I bid for site concrete, the engineers spec out 3,500 psi with wire).
And cracking.
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