Category: 1. Stones

Limestone: These are sedimentary rocks composed mainly of calcium carbonate. They show great variation in their properties and, therefore, not all types are useful as building stones. They can be used as road metal for the construction of floors, stairs, walls, etc. Limestone is also used for the manufacture of cement and lime. The use…

1.Specific Gravity: A good building stone should have a specific gravity of 2.7 or more. Heavy stones are suitable for construction of abutments, dams, docks, harbors, etc. while lighter types are used in building construction.2.Hardness: For use in highly loaded structures, such as in the construction of bridges, piers and abutments and marine structures, and…

A place where exposed surfaces of good quality natural stone are available in abundance is called ‘quarry’ and the process of extracting stone from the natural bed is called ‘excavation’. This is done with the help of hand tools like pickaxes, chisels etc. or with the help of machines. Blasting using explosives is another method…

These rocks are formed by the weathering of natural elements on the original rock and its subsequent transport by wind, rivers, glaciers and seas and deposition in different places. The following four types of deposits are found.

These rocks are formed by changes in the character of pre-existing rocks. Igneous as well as sedimentary rocks change character when they are subjected to intense heat and pressure. The process of change is called metamorphism.Gives names of original and metamorphic rocks. The mineral composition and composition of a rock represents a system in equilibrium…

The molten material in the interior of the Earth’s surface is known as magma, and this magma occasionally tries to seep through cracks or weak areas to the Earth’s surface. Rocks that are formed by the cooling of magma are called igneous rocks. The portion of lava that comes to the surface cools rapidly and…

According to the mode of origin, the stones are divided into three principal classes or groups, : Igneous rocks. Metamorphic rocks.Sedimentary rocks.

Rocks are classified in four different ways: Geological classificationChemical classification Practical classificationPhysiological classification

Stones are obtained from rocks. A rock represents a specific part of the Earth’s surface. They are found almost everywhere in hilly and mountainous regions. It has no specific chemical structure and form. Stones are available in large quantities in different parts of our country. It is important to know the availability of good stones…

Stone is one of the most important construction materials in civil engineering. Rocks are derived from rocks, which make up the Earth’s crust, and have no specific shape or chemical composition, but are mixtures of two or more minerals. A mineral is a substance formed by natural inorganic processes and has a specific chemical composition…