Author: Haroon Khalil

Concrete hollow blocks constructed with two through holes to form continuous vertical hole are ideal for concrete filling. These holes can be completely or partly filled with concrete during the process of construction itself. For this purpose, mixes with large size aggregates may be used. This provision will add greater strength to walls. It has…

Different types of basic hollow blocks used in construction are discussed in Section 9.6.1. Additional hollow block units are given in Fig. 16.9 Now the construction features are explained. 1. Construction of Walls A mortar bed is spread on the foundation concrete and levelled to have a uniform thickness everywhere. The corner block is first…

Following are the uses of concrete blocks for masonry construction:

Cement concrete hollow blocks have been in use for several masonry constructions. Several advantages have given room for rapid development and use of the same in place of traditional construction materials like stones and bricks. Typical concrete masonry units are shown in Fig. 16.9 (Sharma, 1988), in addition to the concrete hollow blocks referred to…

Brick masonry and stone masonry are compared in Table 16.4. Table 16.4 Comparison of brick and stone masonry

The construction procedure for stone masonry is slightly different from that of brick masonry. Unlike in brick masonry, in stone masonry stones of different sizes and shapes are used and accordingly there is slight variation in construction. However, basically the requirements of vertical joints not being continuous, thickness of mortar joints and quality of mortar,…

Various sub-divisions of these types are: (i) Rubble Masonry (ii) Ashlar Masonry

Stone masonry is classified based on the thickness of joints, continuity of courses and finish of face. Rubble Masonry and Ashlar Masonry are discussed below (IS: 1597, Parts 1 and 2, 1992). 1. Rubble Masonry Rubble masonry is a stonework wherein blocks of stones are either undressed or roughly dressed and have wider joints. The…

Dressing is the art of cutting the stones to shape required for use in structures. A brief discussion on dressing and purpose of dressing is made in Section 2.8. Tools used for cutting and dressing stones is given in Fig. 16.5. Figure 16.5 Tools for cutting and dressing stones Stones for two major types of stone…

Materials used for stone masonry are stones and mortar. Common types of stones which are used for stone masonry along with their crushing strength are presented in Table 16.3. Table 16.3 Common types of stones used for stone necessary Generally lime and cement mortars are used for stone masonry. Their function is to initially provide a…