In this area, it is a good thing because the soils are typically low pH. Farmers here have to lime their fields annually.AND,, the concrete is limestone, so the block will constantly be raising the pH,, not good.
I live in Virginia, we always fought low pH due to acid rain,,
now, they quit burning coal for electricity, no more acid rain, my soil pH is going over 7.
I had to start buying sulfur to acidify the soil,,,