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Workability of concrete can be improved by the addition of __________(a) Iron(b) Sodium(c) Zinc(d) SulphurThe question was asked in homework.The question is from Workability of Fresh Concrete topic in division Fresh Concrete of Concrete Technology |
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Answer» RIGHT choice is (c) Zinc For explanation I would say: Inorganic retardants include OXIDES of lead, zinc, PHOSPHATE and magnesium salts. Most retarders also ACT as water REDUCERS. |
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