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Hydraulic lime resembles natural cement with about __________ of clay.

(a) 15%

(b) 20%

(c) 30%

(d) 60%

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Enquiry is from Lime in division Glass, Lime, Clay Products & Bricks of Construction & Building Materials

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Best answer
The correct choice is (c) 30%

The best explanation: With an increase in the percentage of clay in hydraulic lime its hydraulic property increases and the slaking becomes difficult. With about 30% of clay, hydraulic lime resembles natural cement.

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