Do the bubbles in cellular concrete collapse, reducing its volume?
Not with well engineered liquid foam concentrates. The pre-formed foam cellular concrete products made from top quality Mearlcrete® and GeofoamTM liquid foam concentrates do not collapse. Air cell stability is the mark of a superior foam concentrate and foam generator combination. Which is not to say that all cellular concrete products are stable. Particular care should be taken to test foams from water pressure type foam generators, and gas-off chemical products. The proposed pre-formed foam for an application should be tested for stability or certified for stability before actual project placement.