It’s been two days since the first pour. When I pulled off the top form, I discovered that the concrete didn’t fill completely. I also had the back-splash forms to fill so I mixed up a sand/cement mix. To this, I added acrylic fortifier and liquid charcoal dye. I filled the back-splash forms and troweled in the voids on the sink.
I’m learning about curing. My approach is to spray with water every couple hours and cover with plastic trash bags. The concrete mix was warm for the first 24 hours but isn’t warm now. I was surprised that the sand mix never warmed up like the concrete did.
I’m not sure if this is an indication curing is complete. Until I understand this better, I’m going to keep it wet and covered.