Marsala is available in many levels of sweetness, with dolce providing the best substitute for cream sherry. Madeira, produced on the Portuguese island of the same name, is another viable substitute. In a pinch, sweet vermouth can also be used successfully in many recipes.
First they are all concrete, just different application methods. Gunite (dry nozzle)is a dry mix where water is added at the nozzle. Shotcrete (wet nozzle) is premixed wet. They both use high air pressure to force the mixture to stick to the wall. Just as if you take a ball of mud and throw it at something, if wants to stick.
THE TRUTH ABOUT GUNITE. Gunite is shot through the hose dry and the ratio of cement to sand mixture is at the mercy of your gunite company. All one has to do is walk the ladder and open the small hatch that covers the cement before they start shooting a new truck.