USES OF LIME
Lime can be used for the following purposes:
SLAKING OF LIME
The process of mixing water in quick lime is known as slaking of lime. It is an important operation in the preparation of lime at site for use in building construction. Improper slaking results in serious defects in mortars and plasters. Figure 3.3 Continuous flare kiln Two methods are commonly used for slaking […]
CALCINATION OF LIME IN CLAMPS AND KILNS
3.3.1 Calcination Lime is manufactured by the burning of limestone to bright red in suitable kilns or clamps. Theoretically, limestone dissociates when heated at 880°C into carbon dioxide and calcium oxide, which is also reversible. CaCO3 ↔ CaO + CaO2 The burning or calcination of limestone can be carried out in one of the following ways: […]
CLASSIFICATION OF LIME
Lime has been conventionally classified into the following three types, namely 3.2.1 Fat lime This lime is also known as high calcium lime, pure lime, rich lime or white lime. Fat lime is obtained from pure limestone, shell and coral. When it is left in air, it absorbs carbon dioxide (CO2) from air and gets […]
SOURCES OF LIME
Lime is not usually available in nature in free state. It is chiefly prepared by burning limestone. Depending on the percentage of calcium carbonate (CaCO3) in limestone, lime is classified into A, B and C types, which are used for masonry work, mortar and plaster and white washing, respectively. The type C variety is also […]