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Secure and brace form
How you achieve this step will be dependent on your building site, and preferences, but our suggestion is to use small steel brackets, where you can screw them to timber, or nail them to a concrete slab. These brackets will serve the dual purpose of preventing the formwork from lifting from the ground, and preventing individual bricks from blowing outwards due to the static load of the poured concrete.
Every brick at ground level must be supported from directly behind its main, concrete facing surface. And at least every third brick must be bolted to the ground to prevent the formwork rising. Every brick on the top row of your formwork should also be secured in some way to it’s neighbour. Both the top and the bottom row of your formwork are not supported by the teeth of other bricks, meaning that they will blow out if not secured via alternative means.
Alternatives to steel brackets could include using simple chocks placed against the back of the main concrete facing surface. These c