What is a concrete batch ticket and why should I keep it?

A batch ticket is the delivery slip the ready-mix driver hands over with each load. It shows the mix design, the design strength in PSI, the cement and stone amounts, the additives, the batch time, the discharge time, and any water added at your site. The plant writes it, not anyone standing on your pad. That makes it the only outside record of what went into your slab. Once the truck leaves, you can't get another copy of that load's history.

Why does water added at the job site matter so much?

Water added after the plant is the fastest way to give away strength and density. It doesn't bond with the cement. It takes up room in the mix, rises to the top as the slab sets, and leaves tiny holes behind when it dries out. Slump past 5 inches usually means somebody thinned the load to make it easier to place. The right fix for a stiff load is a mid-range plasticizer at roughly $2 to $4 per cubic yard. It makes the mix flow without changing the balance of water to cement.

What PSI should my batch ticket show?

Match it to your contract, not to a rule of thumb. A home driveway commonly runs 3,500 PSI, air entrained. A shop slab commonly runs 4,000 PSI. Any slab that will be polished or get a resin coating needs at least 3,500 PSI, and more cement shifts a polished floor's color darker. If the ticket's design strength is lower than your bid promised, speak up while the truck is still on the property.

How long can a concrete truck sit before it has to discharge?

The ready-mix standard, ASTM C94, sets the default limit at 90 minutes from the time water meets the cement, or 300 turns of the drum, whichever comes first. The buyer can stretch that when the mix has a retarder or the conditions call for it. But that's a written decision, not the driver's call. The ticket prints both the batch time and the discharge time, so a load that sat too long leaves a paper trail.

Does the batch ticket affect what color my polished floor will be?

Yes, and the ticket is the only place that choice is written down. A polished floor's color comes from the cement paste and the local stone the diamonds uncover. The plant sets both in the mix design. Oklahoma's native sands and fine aggregates run tan, so a standard 3,000 PSI mix polishes to a light pecan tone. More cement shifts the finish toward gray. Nothing done after the pour changes that.

What should I photograph on pour day?

Four things, and it takes about two minutes in all. The vapor barrier and its taped seals before any concrete arrives. The reinforcement sitting on its chairs, best shot after the first truck has emptied, so you can see whether the chairs held. Every batch ticket, front side, before you hand it back. The finished slab once the crew pulls off. Those four photos settle nearly every argument that can come up later.

How to read a concrete batch ticket on pour day

Learning how to read a concrete batch ticket takes about 90 seconds. Seven boxes on the slip describe your slab, and five matter most on pour day: the mix design and its design strength, the cement content, the additives, the batch and discharge times, and the water added at your site. That last box tells you if the slab you paid for is the slab you got.

Take a photo of the ticket before you hand it back. The driver doesn’t need the paper to leave. He needs a signature. Ask for your copy and keep it.

Which boxes on the ticket actually matter?

The batch ticket (some folks call it the delivery ticket) has a dozen or more boxes. That’s because the plant tracks its own stock on the same paper. Most of it is bookkeeping. Seven boxes describe your slab, and they run in about this order down the page.

Box on the ticket	What it is	Why you care
Mix design number and design strength	The plant’s recipe code, and the PSI it should reach at 28 days.	Check it against the PSI in your contract. A 3,000 PSI ticket on a 4,000 PSI bid is a talk you have this morning, not in October.
Cement content	Pounds of Portland cement per cubic yard.	Sets how dense and hard the top is, and the color a polished floor turns out.
Coarse aggregate and sand	How much stone and fine sand is in the load.	That local stone is what a polished or exposed top shows.
Admixtures	Additives: air entrainment, water reducer, plasticizer, accelerator, retarder.	A plasticizer line means someone planned for an easy pour instead of making it up with water.
Design water and trim water	Water put in at the plant.	Where the plant’s water-to-cement balance starts.
Batch time and discharge time	When the plant loaded the drum, and when the truck finished emptying.	You can check the time between them against the ready-mix standard.
Water added at site	Gallons the driver put in on your pad, with a line to sign.	The costliest box on the page.

PSI means pounds per square inch. It’s how hard the concrete can be pressed before it breaks. The PSI on the ticket is a 28-day number: the strength the mix should reach 28 days after the pour, not on pour day. How long a slab takes to set and dry is its own question. Our page on concrete cure time vs dry time walks through both clocks.

Read the first two boxes before the chute swings. Read the last one before you sign. The rest can wait until you stack the tickets on the tailgate at lunch.

Why is the water-added box the one that matters?

Water is the only thing on that ticket a person can change after the load leaves the plant, and every gallon costs you something you can’t buy back.

Concrete shows up stiff. Stiff concrete is harder to move, harder to screed flat, and harder on the crew. So the pull to open the water valve is real, and it isn’t malice. But that water doesn’t bond with the Portland cement. It takes up room while the mix is wet, rises to the top as the slab sets, and then dries out, leaving tiny holes all through the paste. That means lower strength and lower density. The top turns soft and chalky, and it polishes washed out and blotchy instead of tight and even.

Watch for slump past 5 inches (slump is a simple measure of how loose the wet mix is). A mid-range plasticizer costs roughly $2 to $4 per cubic yard, and it gives the crew the same easy pour without changing the water-to-cement balance at all. It’s a couple of dollars a yard against a slab that can do less for good, and that’s not a close call.

So take a photo of that box on every load. Nobody has to be cheating for it to matter. Three months from now the floor may be whitening under traffic, with everybody standing around it with an opinion. On that day, the gallons written on that line are the only fact in the room.

A ticket records the pour. It does not fix the pour.

Watching the truck doesn’t replace picking the right mix. By the time a batch ticket exists, the plant has already set the design strength, the cement content, and the stone. The only thing left to change is how much water goes in on site. Reading the ticket tells you what you got, and it gives you a record of it. It isn’t an inspection, it doesn’t certify anything, and it doesn’t promise the slab comes out right. The choices that shape the finish were made weeks earlier at the plant.

What do the batch time and discharge time tell you?

They tell you how long the concrete was mixing before it went into your forms. They’re also the only pair of numbers on the ticket that the plant can’t change after the fact.

ASTM C94 is the standard that covers ready-mix concrete. It sets the default limit at 90 minutes from the moment water meets the cement, or 300 turns of the drum, whichever comes first. The buyer can stretch that when the mix has a retarder (an additive that slows the set) or when conditions call for it. On a hot day, the real working window is often shorter than that limit anyway. Both times print on the paper. So the ticket shows a load that sat in line at the plant, or waited an hour on your drive, whether anybody mentions it or not.

If a load runs long, more water is not the fix. The fix is a talk with the driver about whether that load goes in at all. Have that talk in the first 10 minutes, not the last.

What do you do if a number on the ticket looks wrong?

Act before the chute swings, because after that the load is in your slab. Match what you see to what you do.

The design strength is lower than your bid. You can turn that load around. It costs somebody money, so do it before any concrete leaves the truck.
Gallons show on the water-added line. Ask why, and ask for a plasticizer in the next truck instead of more water.
More than 90 minutes passed between batch and discharge. Don’t fix it with water. Decide with the driver whether that load gets placed, unless a retarder and a written OK stretched the limit.

How does a batch ticket decide what your floor can look like?

The finish nobody has picked yet is already half decided by the paper in your hand.

Polished concrete has no coating and no added color. The diamonds cut into the slab and show whatever the mix put there: cement paste and local stone, in the amounts the plant weighed out. Oklahoma’s native sands and fine aggregates run tan, so a standard 3,000 PSI home mix polishes to a light pecan tone. Add more cement and the top shifts toward gray, because a richer paste pulls the look away from the stone. Our polished concrete color page walks through the full reason, and why stains and dyes act differently from the concrete’s own tone.

3,500 PSI is the practical low end for a slab that will be polished or coated. Below that, the mix carries tiny holes the grinder can’t take out, because they run through the paste and down around the stone. Say the ticket in your hand reads 3,000, and someone in your family has been talking about a polished floor in the shop. That’s worth knowing today, not at grind time. The mix design is one of four pour-day habits that control the whole chain: Set, Portland, Even, and Cure. All four are laid out in the Pour-4-Polish SPEC framework.

Take four photographs and be done

This is the whole paper trail. It costs about two minutes of your own time. It needs no inspector, and nobody from a concrete company standing on your pad.

The barrier, before any concrete. A wide shot of the plastic sheeting with the pipe holes cut, fitted, and taped. Then one close shot at a plumbing stub.
The reinforcement, in place. Take this one after the first truck has emptied into the far corner. That’s when chairs collapse, if they’re going to. Rebar lying on the bottom of a slab is just along for the ride, and it can’t hold anything.
Every ticket, front side. One per load, before you hand it back. Make sure the water-added line is easy to read.
The finished slab. Once the crew pulls off, before anything gets set on it.

Those four photos end most of the fights a slab can start over the next twenty years. They won’t make a defect impossible. Chairs still fail, weather still turns, and a photo of a problem is still a problem. It just means the question of what happened has an answer.

For what goes wrong during a pour, from the crew’s side, see the five crew mistakes that ruin a polished floor. And green-cut joint timing covers the one that runs out fastest after the trucks leave.

The tickets belong in the closing file, not the glovebox

Put them in the closing file, with the plat, the septic permit, and the electrical rough-in inspection. Not the glovebox.

A future buyer’s inspector asks for slab records on any building with a finished floor. On a barndominium, or a shop that doubles as living space, he asks harder. A stack of batch tickets showing a 4,000 PSI mix, a plasticizer, and no water added is a useful thing to hand him. It shows the inspector the slab was built to the mix it was sold as, on paper from the plant and not just by how the floor looks.

The tickets also shape how a workmanship talk goes for anyone who works on that slab later. A finishing contractor who takes over a floor with a known mix strength knows what he’s grinding into. One who takes over a slab with no records is guessing. Guessing gets priced.

What do owner-builders ask about concrete batch tickets?

These four questions come up on nearly every acreage pour where the owner is standing there watching. The batch ticket sits at the center of most of them.

Can I refuse a load?

Yes. The concrete becomes yours when you accept it. A load that shows up past its time limit, or at the wrong design strength, is a load you can turn around. Nobody enjoys doing it, and that’s exactly why it has to happen before the chute swings, not after.

Should I be checking slump myself?

You don’t need a slump cone to see a problem. Concrete that pours like soup instead of oatmeal is telling you plenty. On a pour big enough to justify it, a slump test at the back of the truck is the standard way to check. The method is ASTM C143, and any testing lab runs it. On a small home pour, watching the chute and reading the water-added box gets you most of the way.

Who signs the ticket, me or the crew?

Whoever accepts the load signs the ticket, and on most jobs that’s the crew foreman. That’s fine. Ask for your own copy anyway, 1 per truck. The signature accepts the delivery. The copy is your record. That’s 2 different jobs for the same piece of paper.

What if the crew already added water before I got there?

The ticket still records it. That’s the point of the box. Ask what the load was doing that needed thinning. Most drivers and most foremen will tell you straight, and the answer usually has more to do with wait time than with anybody’s habits.

Still deciding what goes on top of the slab?

Polish, coating, and sealed concrete all price differently on the mix you pour today. See the number before the slab cures.

Price your project

The only record you get once

Every other paper on a build can be printed again. Plans get reprinted, permits get pulled again, and invoices get emailed twice. A batch ticket exists once, on 1 piece of paper, in the cab of a truck that’s leaving. It takes about 90 seconds to read.

Take the copy. Photograph the water line. Put the stack in the file with the closing papers, and the question of what went into your building has an answer for as long as it stands.