Dry Spray/Gunite Shaft Lining
RIX specialises in dry spray shotcrete application, first introduced in the USA in 1907 where it remains commonly known as gunite. In the early 1950s, wet shotcrete was introduced.
Dry spray is pumped in its dry form by high pressure air and mixed at the nozzle with water. Dry spray nozzlemen require an extra level of knowledge and care as they control the quality of shotcrete mixed at the nozzle.
Dry spray is best suited for tele-remote shaft lining. Dry spray shotcrete is preferable as it:
- Requires smaller and lighter delivery hoses
- Allows longer pumping distances
- Requires less maintenance expenditure, and
- Is lightweight, as water is added at the nozzle.