dry shotcrete

dry shotcrete

Concrete or mortar which is pumped through two separate hoses and mixed; one hose contains the dry materials and the other contains water. The mixture is projected through a nozzle at high velocity onto a surface.
References in periodicals archive ?
The company claims that its range of mixing, predampening, and gunning equipment fulfills needs for dry shotcrete applications in mining and tunneling, while its wet shotcrete pumps and mixer/pump combinations safely handle everything from high-volume shotcrete installations to low-volume concrete repair applications underground.
In January, meanwhile, Normet announced it had bought the Meyco dry shotcrete spraying business from Atlas Copco, centered on the Piccola and GM models.
Before the structures can be deemed complete, they must first be reinforced with wet or dry shotcrete (gunite).
Dry shotcrete (gunite) is the process of introducing a dry or predampened shotcrete material into an air stream that conveys the material to a nozzle where water is injected in to the material.
The prebagged dry shotcrete mix should not have been used on a project of this magnitude.
Both are dry shotcrete spraying systems with hand-held nozzles.
Additionally there is a range of solutions for the production, transportation and storage of dry shotcrete in very deep mines, that need to improve efficiency by reducing the number of machines required and the response times," Sattler said.
RockWeb reduces conveyance volumes by 25 times when compared to dry shotcrete, freeing up valuable cage time.
In 1993, Inco successfully introduced wet-mix shotcrete as a replacement for dry shotcrete at its Frood mine, adjacent to Stobie, as a principal means of support in challenging ground conditions.