chemicals for use in the fields of public works and civil engineering, specifically hardener-based soil consolidation systems; rheology modifiers using hydrocolloids, surfactants and/or precipitated silicas; set accelerator for shotcrete using precipitated silicas; performance additives, specifically defoamers and lubricants, used in underground works and surfactant-based foaming agents

'acceler':29 'addit':36 'agent':50 'and/or':25 'base':16,48 'chemic':1 'civil':11 'consolid':18 'defoam':38 'engin':12 'field':6 'foam':49 'harden':15 'hardener-bas':14 'hydrocolloid':23 'lubric':40 'modifi':21 'perform':35 'precipit':26,33 'public':8 'rheolog':20 'set':28 'shotcret':31 'silica':27,34 'soil':17 'specif':13,37 'surfact':24,47 'surfactant-bas':46 'system':19 'underground':43 'use':3,22,32,41 'work':9,44

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