Yes indeed....despite what the clerks tell you.
Lime turns to chalk as CO2 creeps in over time...
and then it can't generate the super-high PH you need
to dissolve the silica and make strong cement.
Heck, even a little too much water will do that.
when a foundation goes below 40 degrees it doesn't
'get better again' when it rises again...the cure is
spoiled. The industry guidelines say so.
Most contractors aren't around when too many cracks
crawl through the slab. .....chalking again.
Better to speed up a cure than say it'll fix itself.
You lose a lot less strength.
"Pay no attention to the man behind the curtain!"
--The Wizard of Oz