A short instructional video showing how I have learned to mix and pour aircrete. I wanted to show a more detailed step by step guide with live mixing to really highlight some of the things I have learned with my online research.

This is how you stop your building blocks from cracking. With the following key points your brick walls will not crack.

1. Expansion gaps all the way though every 5 meters and not in the middle of a wall.

2. Joint ties - to tie the wall though the expansion gap

3. Mortar that is not as strong as the brick it is supporting

4. Bed ties under windows

5. Render key coat and glass fibre mesh reinforced render on the outside.