Correct Answer:
Option C - Lime mortar is made with hydraulic lime.
Hydraulic lime– It is a product obtained by moderate burning of raw lime stone which contains small proportions of clay 5–30% and iron oxide in chemical. Combination with the calcium content [CaO + MgO] 70–80% with MgO less than 5%.
C. Lime mortar is made with hydraulic lime.
Hydraulic lime– It is a product obtained by moderate burning of raw lime stone which contains small proportions of clay 5–30% and iron oxide in chemical. Combination with the calcium content [CaO + MgO] 70–80% with MgO less than 5%.