What is slump?

Slump is how much fresh concrete sags when a cone of it is lifted away in a slump test.

What slump means

Slump is how much fresh concrete sags when a cone of it is lifted away in a slump test. It shows how wet and workable the mix is.

Also called slump test.

Where it matters on a concrete job

Adding water on site raises slump and lowers strength. Order the slump you need, and if the crew wants it wetter, use an admixture rather than the hose.

What it costs

The concrete slab cost guide has the typical job at $5,100 and the usual range at $2,800 to $7,350. The guide shows its sources and what moves the price. The concrete slab cost calculator prices a job line by line.

Work it out

Built for concrete contractors. Start with a free AI report.

☼⚙
Standard⚡ Turbo
● Koira did it● You by hand
Today $9,300$8,100 / $1,200
This week $25,050$18,570 / $6,480
This month $69,300$46,150 / $23,150
Money, just now
Reminded Sean Love, $1,850. Polite reminder with the pay link.
Bids, 9:44 am
Nudged Dana on the kitchen bid. Day 3 follow up. She opened it at 9:12.
Convos, 9:41 am
Texted back a missed call. Walk through booked Thu 10:00.
What Is Slump? Concrete Term Explained | Koira