Category: Building Stones

Generally the stones obtained after quarrying have a rough surface and are irregular in shape. The process of bringing the stones to a regular shape and required finish is known as dressing. The purposes of dressing are as follows: Two types of dressing are in use, viz., quarry dressing and site dressing. Quarry dressing is…

The explosives generally used are blasting-powder, dynamite, gun-cotton, blasting-gelatine, cordite and gelignite. From the time of getting an explosive for use, it has to be properly stored, cautiously handled and effectively utilised. The following precautious are to be meticulously adhered to: 1. Storing Explosives are stored in a specially built buildings called magazines. A magazine…

The following methods of quarrying are listed based on the outcrop of the rock and the purpose for which stones are intended to be used. 1. Digging In soft rocks, stones are obtained merely by digging with the help of hand tools, viz., pick-axes, hammers, chisels, etc. Only those stones that occur in the form…

Before starting to quarry, the quarry location has to be decided based on the following factors:

Quarrying is the process by which stones are obtained from rock beds. Quarry is the place from where the stone is obtained. Quarrying differs from mining in which various operations are carried out for exploring minerals such as coal, quartzite, etc. from a mine under the ground.

Granite Granite is used for stone columns, road metal, ballast for railways, bridge components, etc. It is found in Karnataka, Maharashtra, Rajasthan, Uttar Pradesh, Madhya Pradesh, Punjab, Assam, Tamil Nadu and Kerala. Sandstone Sandstone is used for building and ornamental purposes and also as road metal. It is available in Uttar Pradesh, Madhya Pradesh, Rajasthan,…

Common building stones are used for the following purposes:

Different civil engineering constructions use stone. It is necessary to find their suitability under different conditions. The following properties need to be examined before their use: 2.3.1 Appearance and Colour Stones must look good in appearance and be of uniform colour. Such a quality is essential for stones to be used for decoration work. Light-coloured…

The presence of chemical constituents in the rocks is the basis for their type of classification. They are as follows: (i) Siliceous Rocks In these rocks silica is the main constituent. The presence of silica in the free state is called sand, and in the combined state is a silicate. Rocks containing silica in the…

The basis for such a classification is the physical properties of rocks, the manner and arrangement of different particles and mass forming a stone. They are classified as follows: (i) Stratified Rocks Stratified structure is formed due to the splitting of a series of parallel layers of sedimentary rocks. They exhibit distinct layers which can…