What is the difference between naturally and artificially alkaline water? When measured in drinking water, an alkaline pH can be a result of either natural or unnatural conditions in the water. Thus when comparing two waters, each with a pH of 9.5, one can be healthful while the other causes side effects. Water ionizers split apart water molecules with electricity to artificially create alkaline water.
Re: Painting Fresh Concrete Surfaces. We have to paint below ground concrete surfaces with Epoxy PAINT or Bituminous paint. The engineers says we can paint only after 30 days. What is the actual time gap required to paint on new concrete surfaces.
you can stain before 28 days, but what's the point? the concrete has not even reached 75% of its strength and you cannot seal it. plus, for that whole period you're likely to have efflorscence rising up and discoloring the surface. so wait the 28 days. if there is no efflorescence, then go ahead and stain. don't bother testing the concrete. calcium chloride tests are useless anyway. they only test the top 1/2 of the concrete.