Concrete is a hetrogeneous material composed of cement, fine aggregates (sand) and coarse aggregates mixed with water.
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 …
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 …
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 …
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 …
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 …
Self Compacting Concrete is a highly flowable non-segregating concrete that can be placed in formworks without any external compaction. It gets compacted by means of its own weight. Related Article: Types of Concrete Advantages of Self Compacting Concrete Self Compacting Concrete can be placed at a faster rate with no need for mechanical …
Concrete is a heterogeneous and composite mass, which is a mixture of cement, fine aggregates, coarse aggregates and a certain amount of water. As the technology upgraded, it soon comes into light that standard conventional concrete, which is used in all Concreting aspects, have several drawbacks. Some of the defects may include, its low …
Concrete is a mixture of coarse aggregate, fine aggregate, cement, some admixtures and water. Since the aggregate is obtained from hard rocks, their density or specific gravity is almost the same. So, the density of normal concrete is generally 22 to 26 kN/cubic meter. The density of concrete can be reduced by replacing some of …