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Additives for shotcrete, a technique currently indispensable in the procedures of support and structural coating of tunnels and slopes.
To clarify some concepts:
Currently three different processes are used, which are:
The most commonly used additives and additives in dry-cast concrete are accelerators (dust or liquid), silica smoke (dust or slurry), setting stabilizers, steel fibers and fly ash.
The most commonly used additives and additions in wet shot concrete are accelerators (liquid or powder), superplasticizers, silica fume (powder or slurry), setting stabilizers, rebound reducers, steel fibers or polypropylene and fly ash.
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