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.
concrete is cured fully by twentyeight days. i think after this date one can apply the first coat of paint on top. Comment from parviz mohamadi, (2/10/2011, 2:44 PM) Surface preparation and conditions for painting of concrete surfaces can be found in SSPC-SP13 or NACE No. 6. That's right: All new concretes can be coated after 28 days, but the humidity of concrete and also soundness must be considered. Comment from Jack Henley, (2/14/2011, 11:59 AM) To my knowledge, there is no one rule that applies to all concrete, the 28-day rule.