How to Prepare Shotcrete
Shotcrete is an adhesive mixture similar to concrete used to reinforce walls, walkways, and swimming pools. It contains a mixture of concrete, fine dust particles and water. It is not concrete, although made with similar materials, it contains a different composition.
Shotcrete is made like concrete and requires water. Therefore, in order to prepare shotcrete, add the mixture and water together in your application machine. However, shotcrete cannot be used for supports, walls or foundations. It is used mostly for repairs or reinforcement of traditional concrete structures. It is applied in a fine spray with a hose and nozzle applicator.
Supplies
- Shotcrete applicator
- Shotcrete
- Shovel (small)
- Water
- Examine the shotcrete machine to make sure it is dry. The machine must be completely dry in order for the shotcrete powder and the water to mix properly.
- Pour the shotcrete into the appropriate receptacle on your machine.
- Water should be added to the powder, not vice versa. This will produce the best consistency of shotcrete. No more than 38 percent water should be added. If more than this amount is added, the shotcrete will not set properly, and it will crack easier after its application.
- Manually mix the shotcrete and water together, using a small shovel. However, if your machine has a mixing setting it can also be mixed automatically.
- Keep mixing the ingredients until the power and water have been completely liquified. When this consistency is reached the shotcrete is ready for application.