Category: 6: MORTAR

Selection of mortar for particular civil engineering purposes are tabulated in Table 7.2. Table 7.2 Selection of mortar for different purposes

Preparation of lime mortar and cement mortar have different procedures, which are discussed in subsequent paragraphs. 7.8.1 Preparation of Lime Mortar Ordinary lime mortar and plaster are made by grinding lime with sand. There are three methods of preparing lime mortar. In the first method, a dry mixture of lime and sand are placed in…

Mortars using different binding materials have been used for various purposes. These are discussed below. Lime Mortar It is the mortar wherein fat lime or hydraulic lime is used as the binding material. The lime should be slaked before use. If fat lime is used, 2–3 times the volume of sand has to be used…

In general, the properties required for a good mortar are as follows:

Quality mortar should satisfy the following functions:

As discussed earlier, the ingredients of mortar are: 7.4.1 Functions of Cementing Materials The primary requirement of cementing materials is to provide strength and durability to the structure. For cement mortar mostly Ordinary Portland Cement is used. However, for special types of works other cements may be used appropriate to the work. Cement performs the…

Water is used for construction purposes of Civil Engineering Works such as the construction of earth structures, highway construction, mortar and concrete works, etc. Although water is an important constituent of construction materials, it does not receive the attention due to it particularly in the construction of earth structures and highway construction. However, due importance…

The cementing materials discussed in the previous chapters can not be used directly as a construction material unless they are combined with some other inert material like aggregates. Thus, a combined material formed by mixing intimately a binding material (cement or lime) with a fine aggregate (sand or surkhi) in a certain proportion and with an…