Dry shotcrete machines and Wet shotcrete machines are two types of equipment commonly used to spray mortar or concrete, and there are some key differences in the methods and uses of shotcrete.
The shot slurry is different: the shot slurry added by Dry Shotcrete Machine is dry, such as concrete, cement, etc., no water or a small amount of water is added, and water is only added at the nozzle. The Wet Shotcrete Machine adds a uniformly stirred mixture, such as concrete, cement and water, mixes them thoroughly, and then sprays them out.
Different gunite modes: Dry Mix Gunite Machine adds dry concrete or cement, so when spraying, the nozzle needs to add water to ensure the spraying effect and not produce too much dust. The Wet Mix Shotcrete Gunite Machine uses water to fully mix concrete or cement and then sprays it. There is no need to add water to the nozzle, and no dust is generated, ensuring the working environment.
How it works: Dry shotcrete machines use compressed air to suck mortar or concrete particles from a hopper, accelerate them through a nozzle and spray them onto the desired surface. During this process, the mortar or concrete particles are not mixed with water.
Application: Dry shotcrete machines are usually used for projects that require rapid repair, spraying or coating, such as surface repair, fireproof coating, building decoration, etc. They are suitable for construction projects that are sensitive to moisture.
Advantages: Dry shotcrete machines generally have a faster construction speed because there is no need to wait for the concrete or mortar to dry. Additionally, they can be used in both indoor and outdoor projects without introducing additional water.
How it works: A wet shotcrete machine mixes mortar or concrete with water and then uses compressed air to spray the mixture onto the surface. This means that mortar or concrete is mixed with water to form a spray liquid.
Application: Wet shotcrete machines are usually used in projects that require liquid mortar or concrete, such as underground construction, underground tunnels, waterproofing projects, etc. They are suitable for projects that require a longer period of time for concrete or mortar to dry.
Advantages: Wet shotcrete machines are typically used on projects that require greater durability and waterproofing. Since the water is thoroughly mixed with the concrete, they provide a better seal during construction.
In short, there are differences between Dry Mix Gunite Machine and Wet Mix Shotcrete Gunite Machine based on the requirements and conditions of the construction project. Which shotcrete machine to choose depends on specific project needs, including required durability, construction speed, construction environment and construction materials.
