What is the difference between shotcrete and Gunite?
Shotcrete is an all-inclusive term to describe the spraying of concrete or mortar that may be accomplished through either a dry- or wet-mix process. Gunite refers only to the dry-mix process in which the dry cementitious mixture is blown through a hose to the nozzle, where the water is injected immediately prior to application. Because complete mixing of the water and dry ingredients is not possible in the nozzle, mixing is completed as the material impinges on the receiving surface, through manipulation of the nozzle. This requires a very highly skilled nozzleman, especially in the case of thick or heavily reinforced sections. Large aggregate is seldom used with the dry-mix process. Wet-mix shotcrete involves pumping of a previously prepared mixture, typically ready mixed concrete, to the nozzle. Compressed air is introduced at the nozzle to impel the mixture onto the receiving surface. The mixture usually contains minus 1/2 in. aggregate, although larger-size aggregate has also been
The main difference between shotcrete and gunite is 3/8″ stone. Gunite is a dry mixture of sand and cement with water added at the nozzle during application. Shotcrete is a wet mix of sand, cement and usually 3/8″ pea gravel, delivered to the job already mixed in a concrete truck. 2. Why does pool tile crack and fall off? A: Tile and coping damage are often the result of poor drainage around the pool, leading to saturation of the pool shell. The other main reason for tile and coping failure is improper installation. Some installers will use a 2-3″ mortar bed to level the top of the pool. In most cases, especially in a cold climate, a mortar bed that thick will fail. 3. Does the filter system need to be close to the pool? A: No. The filtration system DOES NOT need to be right next to the pool. With the proper sizing of pipe, it can be placed out of sight, like behind a shed, or in the rear of the yard, etc. 4. How long will my plaster pool finish last? A: When properly installed, and mo
