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FREEDGUY 
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 Topic: Concrete ??
Posted: 29 Sep 2021 at 7:00pm |
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Why is it that a concrete supplier can NOT supply the same "color' of material for multiple pours ?? Same company, same mix and less than 3 hours apart ??
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Tracy Martin TN
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Posted: 29 Sep 2021 at 7:07pm |
 FREEDGUY wrote:
Why is it that a concrete supplier can NOT supply the same "color' of material for multiple pours ?? Same company, same mix and less than 3 hours apart ?? |
You voted Biden didn't you? Tracy
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steve(ill)
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Posted: 29 Sep 2021 at 7:11pm |
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Like them all, but love the "B"s.
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den/southern illinoi
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Posted: 29 Sep 2021 at 7:15pm |
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Our local ready mix company has 6 plants. To get enough cement for all plants, they buy their cement from 2 companies. The colors are not the same so they usually batch each job from the same plant or at least from plants that use the same cement. Den
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fixer1958
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Posted: 29 Sep 2021 at 7:52pm |
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How do you know it's not Biden
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FREEDGUY
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Posted: 29 Sep 2021 at 8:21pm |
den/southern illinoi wrote:
Our local ready mix company has 6 plants. To get enough cement for all plants, they buy their cement from 2 companies. The colors are not the same so they usually batch each job from the same plant or at least from plants that use the same cement. Den |
Thanks for a sensible reply Den, It's been like this for YEARS but this past week, the builder really pitched a bitch on a 45 yard driveway/garage approach on a $800,000 home and IMO, for good reason   !! I fail to see the relevance of Biden and concrete ?? Every one wants to make it POLITICAL    , LMAO !!!
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JC-WI
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Posted: 29 Sep 2021 at 10:06pm |
FG, if your pumpkin wasn't filled with jetcrete, you would know why those fellers are pick'n on you... but I will give you a hint... something about covid and askin where covid should go... And I say send it back to CHINA. Okay maybe I jumped a few steps over to rationality.  5 truckloads of concrete... Like Den said, sometimes the plants will bring in trucks from other plants and it won't look the same... sometimes the same pour can look different in different spots just in how long it took to pour and who was doing the finishing... and if they had to add more water in between. Was on a pour one time and the plant called and asked if they could run a full load out because another place was not ready to pour and would be in the truck to long. Since the job was not critical, we took the load and at that moment, color didn't mean anything specially when it lessened the cost.  |
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Jordan(OH)
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Posted: 29 Sep 2021 at 10:20pm |
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One truck probably had to wait on the train.
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Tbone95
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Posted: 30 Sep 2021 at 7:00am |
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Wonder how it will look in a month?
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steve(ill)
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Posted: 30 Sep 2021 at 8:34am |
It's been like this for YEARS but this past week, the builder...
If it happened more than ONCE.... The Contractor and the Supplier are BOTH IDIOTS.
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Like them all, but love the "B"s.
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klinemar
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Posted: 30 Sep 2021 at 2:12pm |
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Freedguy, why don't you ask the Concrete Company? You obviously don't like some of the answers you get here!
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DMiller
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Posted: 30 Sep 2021 at 6:30pm |
Tbone95 wrote:
Wonder how it will look in a month? |
Concrete Grey White!!!
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FREEDGUY
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Posted: 30 Sep 2021 at 7:33pm |
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FREEDGUY
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Posted: 30 Sep 2021 at 7:38pm |
klinemar wrote:
Freedguy, why don't you ask the Concrete Company? You obviously don't like some of the answers you get here! |
I'm not the General Contractor, it was a "generic" question, and other than YOU, why are the answers I receive are "un-liked" in your opinion ???
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klinemar
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Posted: 30 Sep 2021 at 7:52pm |
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Freedguy you responded to T-bone that the concrete will look the same and you didn't ask the contractor. What response are you expecting?
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jaybmiller
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Posted: 30 Sep 2021 at 9:11pm |
why ? could be that the raw materials are different. Say the stone for the second batch comes from another quarry, or the cement form a different manufacturer.Maybe one of the additives was changed ?? Concrete might ,eventually ,change to SIMILAR colour, but I wouldn't expect it to. BIG THING when using stucco for a house, order at LEAST 2 extra 5G pails of it !!! There's no way you'll get the SAME colour a day later, let alone 5 years from now. Car paint is terrible. even with 'computerz', no one get the match 100%, though some of the water borne stuf is kinda close.
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Tbone95
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Posted: 01 Oct 2021 at 7:03am |
DMiller wrote:
Tbone95 wrote:
Wonder how it will look in a month? |
Concrete Grey White!!! |
That's what I'm a'thinkin'!
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Coke-in-MN
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Posted: 01 Oct 2021 at 12:14pm |
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OK another concrete question ????????
When i was doing my Building Inspection classes one instructor said he always checked the counter on the truck to see how many revolutions the drum had made since truck was dispatched to jobsite . Any commercial project he inspected he was there for concrete pours and REJECTED loads with over a certain revolution count .
He told the driver to find some residential job to go to as the load was not allowed on the site .
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steve(ill)
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Posted: 01 Oct 2021 at 12:22pm |
We were pouring the base of a 300 ft chimney at a power plant.. Inspector took slump samples of EACH truck and also they had a log of how long concrete was in the truck since it left the plant.. Had to pass BOTH inspections or it was rejected...... Was coming from 3 different plant, about 150 loads in a certain amount of time... Dont think they were looking at the colors...
Edited by steve(ill) - 01 Oct 2021 at 12:22pm
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Like them all, but love the "B"s.
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allisbred
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Posted: 01 Oct 2021 at 3:32pm |
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I know they check samples for yield strength once cured and I thought they checked temperature as well for government structural jobs? Neighbor told me about a time in Harrisburg Pa that they had to demo a bridge 21 loads after a bad batch was examined. Said he had 20min and only 5 min window from leaving the plant to job site to unload including batch inspection.
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klinemar
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Posted: 01 Oct 2021 at 4:10pm |
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Watched a safety video when I worked for MDOT as they had a Construction Tech backed over by a Cement Truck when she was taking a Concrete slump reading.
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NEVER green
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Posted: 02 Oct 2021 at 10:09am |
Portland colors are different colors from each supplier, around here some companys use granite and some river rock, the list is long.
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CalvikJnso
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Posted: 04 Jun 2022 at 6:02am |
It all depends on how professional the employees in this company are. Now someone can say that the raw materials for concrete can be different, and this causes such problems. Still, it only depends on how correctly the master prepares the mixture for concrete. I've seen how professionals from Dallas Concrete Contractors do it, and you'll never convince me that I'm wrong. I haven't seen such well-coordinated and professional work for a long time, and if I needed to do the foundation of my own house, I would call just such guys.
Edited by CalvikJnso - 09 Jun 2022 at 8:04am
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Thad in AR.
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Posted: 04 Jun 2022 at 6:43am |
You can verify the future can ya? Well so can we. We said your boy Biden would screw the economy and gas would go through the roof. Our prediction has been verified yours has not.
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tadams(OH)
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Posted: 04 Jun 2022 at 1:09pm |
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At the rate things are going it's going to be ffirst come first served because my son's company uses 4 tanks of diesel fuel per month and is being told they will only be getting 1 tank full a month.
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DiyDave
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Posted: 04 Jun 2022 at 5:31pm |
FREEDGUY wrote:
Why is it that a concrete supplier can NOT supply the same "color' of material for multiple pours ?? Same company, same mix and less than 3 hours apart ?? |
I see no concrete evidence of a single answer to this question...
I can set here and wait for an answer all night, but sleep will cure me of the problem
There, we have a firm foundation for a pun-fest!
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AllisFreak MN
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Posted: 04 Jun 2022 at 10:11pm |
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DaveKamp
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Posted: 05 Jun 2022 at 10:46pm |
Well Chute... this just reinforces all the hard facts: I'm too pour to go on strike, too heavy to float the cost, and too much of a sinner to ever cast any stones...
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Ten Amendments, Ten Commandments, and one Golden Rule solve most every problem. Citrus hand-cleaner with Pumice does the rest.
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DaveKamp
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Posted: 05 Jun 2022 at 11:01pm |
One of the most common reasons for color variation, (aside from changes in aggregate source), is what ever residue might still be in the kettle from a previous pour. When an archetectural deco mix is ordered with mixed-in dye, the following batch frequently shows evidence of stray pigment. Sometimes that change in color is due to the addition of potash (or contamination from a prior load). If it's in a high-safety circumstance, there's no reason not to reject it, as contract specifications are pretty clear. A quality supplier will make absolute certain that the spec is met, as a failure of non-compliant concrete would place them directly in the path of liquidated damages, liability, and subrogation. A good supplier wants it to your site RIGHT, which means all the proper admixtures, no contaminants, proper slump and temperature.
In structural circumstances, I personally always take a slump and temp measurement, as well as fill at least 4 sample cylinders, and then cast some leftovers into a 12x12x8" stepping stone for future reference. In my non-structural, I cast some stepping stones so that I can observe the shrink/crack over long-term. I do not get too caught up in color, but when someone is doing a decorative pour, they're certainly not in the wrong to desire a color match... but once it's down and hard, the only options are either to 1) knock it out and try again, or 2) apply a surface dye. The problem is, that when concrete is fresh, it's 'green'... and the color does change, and it is basically impossible to prove WHAT the color change is, until after it's been down and solid for at least several months.
Quality control on concrete can become an extremely serious biz. A bad batch, in the wrong place, can cause some very, very, very bad things to happen. Our concrete pours (company) have test samples taken for cylinder break tests for 14, 21, and 28 days, and when we have a sample failure, there's a whole lot of remediation considered in order to make sure we don't experience those very bad things.
A pair of large bridges were recently built in my area, they have steel-reinforced concrete arches. I don't care one iota about the color match of those arches... I just don't want them to ever fail.
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Ten Amendments, Ten Commandments, and one Golden Rule solve most every problem. Citrus hand-cleaner with Pumice does the rest.
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Kenny L.
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Posted: 06 Jun 2022 at 11:14am |
DaveKamp wrote:
One of the most common reasons for color variation, (aside from changes in aggregate source), is what ever residue might still be in the kettle from a previous pour. When an archetectural deco mix is ordered with mixed-in dye, the following batch frequently shows evidence of stray pigment. Sometimes that change in color is due to the addition of potash (or contamination from a prior load). If it's in a high-safety circumstance, there's no reason not to reject it, as contract specifications are pretty clear. A quality supplier will make absolute certain that the spec is met, as a failure of non-compliant concrete would place them directly in the path of liquidated damages, liability, and subrogation. A good supplier wants it to your site RIGHT, which means all the proper admixtures, no contaminants, proper slump and temperature.
In structural circumstances, I personally always take a slump and temp measurement, as well as fill at least 4 sample cylinders, and then cast some leftovers into a 12x12x8" stepping stone for future reference. In my non-structural, I cast some stepping stones so that I can observe the shrink/crack over long-term. I do not get too caught up in color, but when someone is doing a decorative pour, they're certainly not in the wrong to desire a color match... but once it's down and hard, the only options are either to 1) knock it out and try again, or 2) apply a surface dye. The problem is, that when concrete is fresh, it's 'green'... and the color does change, and it is basically impossible to prove WHAT the color change is, until after it's been down and solid for at least several months.
Quality control on concrete can become an extremely serious biz. A bad batch, in the wrong place, can cause some very, very, very bad things to happen. Our concrete pours (company) have test samples taken for cylinder break tests for 14, 21, and 28 days, and when we have a sample failure, there's a whole lot of remediation considered in order to make sure we don't experience those very bad things.
A pair of large bridges were recently built in my area, they have steel-reinforced concrete arches. I don't care one iota about the color match of those arches... I just don't want them to ever fail.
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Dave, didn't you also have to do a air test every sample, I know the company I work for did but I can't remember if it was mandatory or not, the supervisor we had always had us over sampling everything just to be sure are asses where cover. Also how do you like doing the daily report for the project? I thought it was a lot of wasted time and a pain the ass.
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