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Which of the following is not a hydrophobic admixture?

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Which of the following is not a hydrophobic admixture?

(a) Lime silicate

(b) Acidol

(c) Naphthenesoap

(d) Oxidised petrolatum

This question was posed to me in unit test.

This key question is from Plain and Reinforced topic in chapter Miscellaneous Materials, Plain and Reinforced Cement Concrete of Construction & Building Materials

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Correct option is (a) Lime silicate

To explain I would say: Hydrophobic cement consists of admixtures that are used to reduce the wetting ability of the cement grains. The usual hydrophobic admixtures used are acidol, oxidised petrolatum and naphthenesoap.

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