Q: Which of the following aggregates gives the least coefficient of thermal expansion of concrete? निम्न में किस मिलावे का तापीय प्रसार गुणांक सबसे कम है?
A.
Quartzite/क्वार्ट्जइट
B.
Sandstone /बालुआ पत्थर
C.
Limestone/चूना पत्थर
D.
Cherts/चर्ट्स
Correct Answer:
Option C -
Explanations:
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