What is concrete curing? | #Sakrete Pro Tips After the pour, the chemical reaction inside your concrete keeps going for about 28 days. There's a limited window to lock in strength and durability — that's where curing comes in. Curing means keeping the slab moist — as much and as long as possible. Skip it, and you risk cracks, efflorescence, scaling, spalling, staining... Ugly problems your client won’t want to see. Don’t cut corners. Get the full Curing Concrete guide at Sakrete.com. #SakreteTim