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Shot Crete Mentioning Yuleba, Roma and Chinchilla

Yuleba Minerals Pty Ltd is and Australian company mining a high grade silica deposit in south west Queensland

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Shot Crete Mentioning Yuleba, Roma and Chinchilla

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  1. Shot Crete Mentioning Yuleba, Roma and Chinchilla

  2. Shotcrete is usually an all-inclusive term that can be used for both wet-mix and dry-mix versions. In the pool construction trade however, the term "shotcrete" refers to wet-mix and "gunite" refers to dry-mix;

  3. Shotcrete undergoes placement and compaction at the same time due to the force with which it is projected from the nozzle. It can be impacted onto any type or shape of surface, including vertical or overhead areas.

  4. The dry mix method involves placing the dry ingredients into a hopper and then conveying them pneumatically through a hose to the nozzle. The nozzleman controls the addition of water at the nozzle.

  5. The water and the dry mixture is not completely mixed, but is completed as the mixture hits the receiving surface. This requires a skilled nozzleman, especially in the case of thick or heavily reinforced sections.

  6. Advantages of the dry mix process are that the water content can be adjusted instantaneously by the nozzleman, allowing more effective placement in overhead and vertical applications without using accelerators. The dry mix process is useful in repair applications when it is necessary to stop frequently, as the dry material is easily discharged from the hose.

  7. Wet-mix shotcrete involves pumping of a previously prepared concrete, typically ready-mixed concrete, to the nozzle. Compressed air is introduced at the nozzle to impel the mixture onto the receiving surface.

  8. The wet-gun procedure generally produces less rebound, waste (when material falls to the floor), and dust compared to the dry-mix procedure. The greatest advantage of the wet-mix process is that larger volumes can be placed in less time.

  9. Yuleba Minerals located near Roma and Chinchilla produces the SP series of shotcrete products which are supplied as a dry mix in 20kg bulka and mini bulk bags and can be wet or dry pumped the product has been formulated around a fine sand to minimise product loses from rebound.

  10. This makes the product ideal for spraying in and around steel reinforcing and where vertical and overhead spraying is required.

  11. The SP2, SP3 and SP4 formulations provide a range of ultimate compressive strengths which allows the user to select a product to meet a specific need or application.

  12. The SP range of shot crete is used in underground coal mining for stoppings rib and roof support the product is available throughout the Bowen Basin, Emerald Mackay Queensland and Hunter and Gunnedah coal fields NSW.

  13. To know more information please visit http://www.yulebaminerals.com.au/

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