SPECIAL MORTAR

Some of the special mortars are following:

    i.            Cement clay mortar

    ii.            Gauged mortar

    iii.            Decorative mortar.

1. Cement Clay Mortar: by adding cement to the mix Quality of clay mortar may be improved. Usual proportion of clay to cement is 1:1. It maintains the economy to some extent and there are adequate improvements in the durability of mud-mortar.

2. Gauged Mortar: by adding cement to lime mortar this mortar is obtained. The usual proportion of cement of lime and sand are 1:1:6, 1:2:9 and 1:3:12. After mixing cement this mortar is to be used within half an hour. Clearly, it is cheaper than cement mortar and its quality is lie between that of cement mortar and lime mortar.

3. Decorative Mortar: by using coloured cement these types of mortars are obtained. They are used to give pleasant appearance to outer walls.