Concrete delivery ticket billing, checked against the order and the price list before the invoice.

A truck leaves the plant with a ticket and returns with a signature and whatever the driver wrote on it. At the billing desk, someone ties that ticket to the order: the mix and yards ordered, the contractor's job and PO numbers, and the price list or negotiated terms for that account. They work out which charges apply, such as fibers and admixtures, a cold or hot weather charge, a short load, minutes the truck sat waiting, or concrete that came back. Then the invoice goes out.

In the test, AI reads copies of those same papers and drafts each invoice line with its reason attached: the yards from the ticket, the mix as ordered, the job and PO numbers, every added charge with the price term it came from, and a hold on any ticket it can't settle. Nothing bills. Your reviewer checks every draft against what your office actually invoiced.

The yards are a calculation. NRMCA's Concrete in Practice sheet on yield says ready mix sells by the volume of fresh concrete as discharged, found by dividing the batch weight by a density measured under ASTM C138. ASTM C94 bases yield on the average of three samples from three different trucks, so the volume supplied isn't figured from the size of the slab. The sheet reprints a note from that standard listing waste, spillage, over-excavation and spreading forms among causes that aren't the producer's responsibility. A slab poured 1/8 inch thicker than a nominal 4 inches runs a yard short on a 32-yard order, and the phone rings anyway. The draft bills ticket yards, compares them with the order, and lists any complaint you sent without ruling on it.

The clock moved onto the ticket. In a 2025 policy notice, California's Department of Health Care Access and Information reprints clauses from the 2024 edition of ASTM C94. The hour-and-a-half limit dating from 1935 is gone: the purchaser states a time limit to end of discharge, or else the producer sets one and says so before delivery, and that limit is printed on the delivery ticket. The notice itself holds California hospital work to an hour and a half and 300 drum revolutions. A public library project in Waterville, Maine cut mixing and delivery time to 75 minutes with the air at 85 to 90 degrees F and 60 minutes above that. A load past its limit tends to come back as a rejection or a disputed line, so the draft shows the batch time and the stated limit and marks any overrun for your billing lead.

Every extra has its own unit. Public bid forms show how many ways producers price the same add-on. Brentwood, Missouri's sheet lists plasticizer by the gallon, fiber mesh by the pound, a calcium chloride adder, waiting time per minute per cubic yard, a winter service charge per yard with its dates written beside it, a fuel surcharge and Saturday delivery. Bryant, Arkansas prices fiber as an amount added per yard. Jefferson County, Missouri asked what loads under 4 yards would cost and got a step table by load size from some bidders and a rate per yard up to a minimum from another, plus a price for one extra sack of cement. On a Missouri DOT price agreement near Kansas City, one bidder quoted a hot water charge and night delivery by the hour plus an opening fee, with the hours counted from an hour before the job starts to an hour after it ends. Each draft line uses the unit and dates in your own terms.

Weather, water and returned concrete each leave their own trail. Wisconsin's site concrete section has water and aggregates heated once the air falls to or is expected below 40 degrees F, for delivery between 60 and 90 degrees F, or 50 degrees F for heavy sections. The VA's master section sets its own minimums, 60 degrees F with air at 30 to 40 and 70 degrees F below that, under a 100-degree ceiling. Those specs say what the concrete must do; your price list says what it costs. NRMCA says water added on site must be measured and recorded on the ticket, then signed or initialed by the purchaser's representative, and a purchaser asking for water beyond the design amount takes responsibility for the result. Wisconsin also wants three copies of each ticket, with any jobsite water or admixture recorded over the signature of whoever required it. ASTM C1798 covers returned fresh concrete going into a new batch, grants no permission by itself, and leaves out anything under a quarter yard. Whether a returned load is charged or credited sits in your terms, and the draft holds any return your terms don't cover.

The job and PO numbers decide where the money lands. A general contractor with several open projects can sign tickets from all of them in one week, and a right price on the wrong job still bounces. Your reviewer, usually the billing lead or controller, will check that each line landed on the job and PO your office used, that no charge was billed without something on the ticket to support it, that none was dropped when the ticket supported it, and that held tickets were the ones a person would have stopped too.

Once your reviewer says yes, each day's tickets go through the same checks for about 30 days.

Every invoice waits for a person on your billing desk, who approves it before it posts anywhere.

Drafts stay under comparison the whole month. Anything further is a new decision with its own price, and monthly support follows.