09-12-2023, 05:24 PM
The Rastra product I used does not have a thermal mass issue. Also by its design it allows me to build a full strength concrete wall with a 26% volume of concrete. Properly insulated concrete gives it a high fire rating. Reinforced concrete itself will not survive a hot fire. What happens is the wall heats up and the steel rebar expands and contracts at a different rate than the concrete itself. This expansion issue causes the bond between the rebar and concrete to break.
I have found no product better than Rastra to economically build a concrete wall. Unfortunately the manufacturer was horribly mismanaged and while it should have become a major player it did not.
I have found no product better than Rastra to economically build a concrete wall. Unfortunately the manufacturer was horribly mismanaged and while it should have become a major player it did not.