Correct Answer:
Option D - Ransom stone (Chemical stone)– Ransom stone, also known as chemical stone is prepared by mixing soda-silicate and cement. These stones provide pleasing and decorative flooring. The compressive strength of ransom stone is 32 N/mm2.
D. Ransom stone (Chemical stone)– Ransom stone, also known as chemical stone is prepared by mixing soda-silicate and cement. These stones provide pleasing and decorative flooring. The compressive strength of ransom stone is 32 N/mm2.