The compressive strength of cement should not be less than about 110Kg/cm2 after three days & not less than 170Kg/cm2 after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about ________________ cm2/gm?
Correct answer: B. 1600
- A. 800
- B. 1600
- C. 4000
- D. 8500
Explanation
The turbidimetric fineness value quoted for ordinary cement is about 1600 cm²/g. The much larger value of about 4000 cm²/g is more typical of very finely ground cement or a different fineness basis.
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