waterproof concrete

Good Practice.

I have a number of rules worth following.

  1. Use good quality, cohesive concrete.

  2. Deliver it to within 1250mm of the bottom of where you are placing that concrete.

  3. Vibrate it properly. In, out slowly, every 200mm.

  4. Do not have to lift the poker more than 2m to move it along. That probably restricts formwork height to 2m each pour.

  5. Do not loosen or remove the formwork for 3 days.
If your project has enough labour and a supervisor to watch these 5 rules are applied, no concrete ought to visibly leak.