The concrete quality depends on the manufacturing process of concrete. The manufacturing process involves the following steps.
The concrete quality depends on the manufacturing process of concrete. The manufacturing process involves the following steps :- Batching or measurement of materials, Mixing, Transportation, Placing, Compacting, Curing.
Batching of Material: To maintain the standard of concrete, the quantities of the materials should be perfect. The cement, aggregates and water should have utilized along with 3 percent of batching quantity and the admixture along with the 5 percent of batching quantity. Generally, two types of batching like the volume batch and the weight batch are utilized. The selection of batching method is influenced by the size of job, necessary production rate, and required standards of batching performance.
Volume Batching: Volume batch is suitable for the small works only. The amount of concrete materials is calculated with loose volume by means of standard box alias volume gauge box made of wood or metal. The amount of solid granular material in a cubic meter will be considered as an indefinite quantity. As for instance, the volume of moist sand in a loose condition weights much less as compared to the identical volume of dry compacted sand. Cement is calculated with weight in spite of the methods of batching. The cement is always calculated in terms of weight. The volume of one bag cement (50 kg) is 0.035 m.
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