Building Materials, Third Edition

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™Es†2v 233

8. Hydraulic lime is obtained by burning
   (a) oolitic lime stone (b) kankar
   (c) marble (d) tufa


9. Fat lime slakes between
   (a) 2-3 hours (b) 24 hours (c) 3 days (d) 7 days


10. Match List-I with List-II and select the correct answer using the codes given below the
    lists:
    List-I List-II
    A. Silica 1. hydraulic properties
    B. Clay 2. poor cementing
    C. Sulphates 3. increased ratio of setting


11. reduce setting time
    Codes:
    (a)ABC (b)ABC
    213 421
    (c)ABC (d)ABC
    413 231

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1. (c) 2. (a) 3. (b) 4. (a) 5. (d) 6. (a) 7. (c) 8. (b) 9. (a) 10. (a)