Batching of concrete refers to the process of measuring and combining the ingredients required for the production of concrete in predetermined proportions. The process of batching can be done by two methods: volume batching and weight batching. In volume batching, materials are measured on the basis of volume, while in weight batching, materials are measured on the basis of weight. Weight batching is considered to be the most precise method of batching since it is difficult to find the exact volume of granular materials because of their voids.

The batching process plays a crucial role in ensuring the quality and consistency of the resulting concrete. Proper batching improves the workability of concrete by reducing the segregation or bleeding in concrete, which helps to get a smooth surface of the concrete. It also increases the speed of construction and minimizes the wastage of concrete ingredients.

In summary, batching of concrete is the process of measuring and combining the ingredients required for the production of concrete in predetermined proportions. It can be done by volume or weight, with weight batching being the most precise method. Proper batching is essential for ensuring the quality and consistency of the resulting concrete.