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No One Knows What Core Fill Is

 
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Old 06-21-2020, 09:38 AM   #1
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No One Knows What Core Fill Is


I have called 6+ ready-mix suppliers and no one knows what i am asking for. I need to fill a large concrete hollow block wall with grout aka core fill. Its called core fill when you buy in the dry pre-mixed bags, but I am trying to order 6 yards from a cocnrete ready mix supply and no one knows what the heck I am talking about. What should I be asking for???
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Old 06-21-2020, 09:48 AM   #2
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Re: No One Knows What Core Fill Is


Why not just tell them what your doing and let them fill in the blanks.

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Old 06-21-2020, 09:50 AM   #3
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Re: No One Knows What Core Fill Is


Flowable fill??
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Old 06-21-2020, 09:58 AM   #4
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Re: No One Knows What Core Fill Is


Quote:
Originally Posted by Stunt Carpenter View Post
Why not just tell them what your doing and let them fill in the blanks.
I have tried that too. They have tried to sell me anything from flowable fill to sand. They say uhhh I don't know. I don't want to order something and have it show up and not be right and be out the money for my pump guy. How can these places not get this request 10 times a day? Feel like i am in the twilight zone.
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Old 06-21-2020, 10:19 AM   #5
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Re: No One Knows What Core Fill Is


Grout?

You might just have to specify what you want in the mix.

2000psi with small aggregate (Pea stone or smaller) and high (flowable) slump.
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Old 06-21-2020, 10:19 AM   #6
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Re: No One Knows What Core Fill Is


We call it grout, sometimes we order a pea gravel mix. Depends on the specs of the project.
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Old 06-21-2020, 10:59 AM   #7
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Re: No One Knows What Core Fill Is


Quote:
Originally Posted by Big Johnson View Post
Grout?

You might just have to specify what you want in the mix.

2000psi with small aggregate (Pea stone or smaller) and high (flowable) slump.
Yeah i sent a couple of them a mix design. Have not heard back yet. We will see..
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Old 06-21-2020, 11:04 AM   #8
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Re: No One Knows What Core Fill Is


Quote:
Originally Posted by Big Johnson View Post
Grout?

You might just have to specify what you want in the mix.

2000psi with small aggregate (Pea stone or smaller) and high (flowable) slump.
I said grout. Then they really get spooked. I think they think i am a tile guy or something. About all they seem to know is 3,000 psi concrete. I mentioned pea gravel and that seems to help.
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Old 06-21-2020, 11:06 AM   #9
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Re: No One Knows What Core Fill Is


Quote:
Originally Posted by tgeb View Post
We call it grout, sometimes we order a pea gravel mix. Depends on the specs of the project.
I think i will try that. It might just be the dumb people taking the order. Maybe i need to talk to dispatch instead of sales...
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Old 06-21-2020, 11:11 AM   #10
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Re: No One Knows What Core Fill Is


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Flowable fill??
Right consistency but too low of psi. I think flowable fill is supposed to have the strength of well compacted dirt.
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Old 06-21-2020, 11:19 AM   #11
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Re: No One Knows What Core Fill Is


Tell them 4 sack, pea stone and 10” slump
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Old 06-21-2020, 11:25 AM   #12
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Re: No One Knows What Core Fill Is


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Tell them 4 sack, pea stone and 10” slump
10-4 will do
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Old 06-22-2020, 05:54 AM   #13
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Re: No One Knows What Core Fill Is


In FL I just tell them I need a 3000 psi small pump mix, high slump. #8 gravel if they ask. Everyone is happy with it for filling CMU wall cells.
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Old 06-22-2020, 08:37 AM   #14
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Re: No One Knows What Core Fill Is


Just poured some Thursday.

Get it all the time here.

It's 6-sack grout mix, with 3/8" pea rock.

Ask them to throw a super-plasticizer on the truck.

It comes in gallon jugs, and they'll add it on site.

It only lasts about an hour.
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Old 06-22-2020, 08:39 AM   #15
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Re: No One Knows What Core Fill Is


It's the same mix for doing stamped concrete: 6-sack with 3/8" pea gravel.
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Old 06-22-2020, 10:28 AM   #16
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Re: No One Knows What Core Fill Is


i suspect the term "core fill" is a regional thing.

i have never heard grout for block walls referred to as core fill.

we just call it grout mix.

may be because we always fill block out here, no hollow walls.

usually 4-6 sack mix, 3/8 rock and lots of water so it flows easily.

depending on the job sometimes it's pumped sometimes not...
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Old 06-22-2020, 12:01 PM   #17
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Re: No One Knows What Core Fill Is


Quote:
Originally Posted by Seven-Delta-FortyOne View Post
Just poured some Thursday. <img src="http://img.contractortalk.com/smilies/thumbsup.gif" border="0" alt="" title="Thumbsup" class="inlineimg" />

Get it all the time here.

It's 6-sack grout mix, with 3/8" pea rock.

Ask them to throw a super-plasticizer on the truck.

It comes in gallon jugs, and they'll add it on site.

It only lasts about an hour.

Thanks! What part of the world are you in and does that get you what you need from most ready-mix suppliers or have you got 1 place trained?
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Old 06-22-2020, 12:24 PM   #18
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Re: No One Knows What Core Fill Is


Quote:
Originally Posted by Jamestown View Post
Thanks! What part of the world are you in and does that get you what you need from most ready-mix suppliers or have you got 1 place trained?
7delta and i are in far north west california.

don't need to train a supplier as filling block walls is sop out here.

we just call and order grout mix and if it's a special job will call out what we want.

i've never had a supplier not understand what i want when i order grout.
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Old 06-22-2020, 12:28 PM   #19
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Re: No One Knows What Core Fill Is


Quote:
Originally Posted by griz View Post
Quote:
Originally Posted by Jamestown View Post
Thanks! What part of the world are you in and does that get you what you need from most ready-mix suppliers or have you got 1 place trained?
7delta and i are in far north west california.

don't need to train a supplier as filling block walls is sop out here.

we just call and order grout mix and if it's a special job will call out what we want.

i've never had a supplier not understand what i want when i order grout.
Thanks! Maybe i will start ordering from California. Probably need to throw in a little retardant.
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Old 06-22-2020, 12:55 PM   #20
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Re: No One Knows What Core Fill Is


Quote:
Originally Posted by griz View Post
i suspect the term "core fill" is a regional thing.

i have never heard grout for block walls referred to as core fill.

we just call it grout mix.

may be because we always fill block out here, no hollow walls.

usually 4-6 sack mix, 3/8 rock and lots of water so it flows easily.

depending on the job sometimes it's pumped sometimes not...
Maybe that is my problem. I am filling block too. I will try only saying grout

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