Question

A mixture of slaked lime, sand and water is known as:
A.Lime mortar
B.Concrete
C.RCC
D.Clinker

Answer 1

Hint: To answer this question we must have the knowledge of common names of chemical used and uses of chemistry in daily life. Slaked lime is calcium hydroxide and the name lime suggests the answer to this question.

Complete step by step solution:
Lime mortar is made up of lime along with some aggregate particles such as water and sand. Aggregates are the grained particles used for construction purposes. Lime mortar was first discovered or used by ancient Egyptians. The use of lime mortar decreased as the portable cement came into existence because of its high compressive strength and quick setting property.
 Lime mortar is nowadays used to preserve the old building mainly the monuments and historical building that were made using the lime mortar. However lime mortar can be used wherever portable cement are used because the basic formulation is same, but due to extra advantages with portable cement it is used in construction and other purposes.
Concrete on the other hand is an aggregate of mixed or bounded to liquid cement. RCC is known as Reinforced concrete, its tensile strength is even stronger than the concrete.
Clinker is a solid substance; it is produces as an intermediate in the formation of portable cement.
The correct option is A.

Note: lime mortar was used in making temples and monuments in historical period. It is used in the construction of Mohenjo-daro, which is still a heritage monument of Indus valley civilization. It was known to be widely used in ancient Rome and Greece. The word lime means a sticky substance and the mortar means a mixture with cement.