Building materials are the substance used for construction purposes, like materials for building a house such as bricks, cement, concrete, timber, steel etc.
The increase in the volume of sand due to the presence of water is termed as bulking of sand. It occurs due to the formation of a thin layer of water between particles of sand which pushes the sand particles apart. The bulking of sand depends upon: Moisture in sand Fineness of sand Effect of […]
Concrete is made up of cement, coarse aggregate, fine aggregates, admixtures and water. The excessive amount of silt content in the sand (fine aggregate) is harmful to the strength and durability of concrete. Sand particles have a size between 4.75 mm and 150 microns. In sand, the fine materials of size less than 150-micron are
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Cement is the most commonly used construction material that has both adhesion and cohesion properties due to which it can make bonding and bind particles of solid matter into a compact durable solid mass. Cement is mainly classified into two categories on the basis hardening and setting mechanism. Hydraulic cement Non-hydraulic cement Hydraulic cement: Hydraulic
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Cement is one of the most popular building material. It is used as a binder in the construction industry. It has both adhesion and cohesion properties. It can bind particles into a compact durable solid mass. Cement has a wide application in the construction industry such as: When cement is mixed with sand and water
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Modulus of elasticity of concrete is the measurement of the stiffness of the concrete which is a good indicator of strength. At a higher value of modulus of elasticity, the concrete can withstand higher stress and become brittle. In general, Concrete has an elastic modulus in a range of 30 to 50 GPa. In recent
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The separation of constituents of concrete so that their distribution in the concrete mix is not uniform is known as segregation of concrete. Causes of Segregation of Concrete The difference in the sizes of particles and the specific gravity of the mix constituents. The methods of handling concrete also cause segregation. Dropping concrete from a
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Have you ever wondered how concreting operations are performed in cold weather? Is there any difference in concreting in normal and cold weather conditions? Definition of Cold Weather Concreting As per IS Code 7841-2, Any concreting operation done at about 5°C atmospheric temperature or below is termed as cold weather concreting. Effect of cold weather
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Curing of concrete is the process of preventing the loss of moisture from the fresh concrete. The main aim of curing of concrete is to maintain enough moisture content and favourable temperature in the concrete during hydration of the cementitious materials so that concrete can attain its potential strength and durability. In India, curing is
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