Nov 26, 2006 #1 jacare Mining Joined Jun 28, 2005 Messages 10 Location US I am looking for a well-designed concrete plug for a draining mine adit. My plans are to "sandwich" the concrete in a acid-resistant polyurethane foam blanket due to the very low pH of the draining water.
I am looking for a well-designed concrete plug for a draining mine adit. My plans are to "sandwich" the concrete in a acid-resistant polyurethane foam blanket due to the very low pH of the draining water.