Chemical additives for use in the manufacture of cement mortar and cement-concrete; Chemical additives used for improving clay and salt in soil, stone, salted sands, salted water and to turn them into aggregate ingredients for cement mortar and cement-concrete

'addit':2,16 'aggreg':35 'cement':9,13,38,42 'cement-concret':12,41 'chemic':1,15 'clay':20 'concret':14,43 'improv':19 'ingredi':36 'manufactur':7 'mortar':10,39 'salt':22,26,28 'sand':27 'soil':24 'stone':25 'turn':32 'use':4,17 'water':29

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