Sand is an essential component in the construction industry. River sand is the natural source of the sand. Natural or River sand are weathered and worn out particles of rocks. These are of various grades or sizes. It depends upon the amount of wearing. The artificial sand produced by proper machines can be a better substitute for river sand.
The sand must be of proper gradation. When fine particles are in proper proportion, the sand will have fewer voids. The cement quantity required will be less. Such sand is more economical. Sand manufacturing is a profitable business. It demands substantial capital investment in Plant setup.
Manufactured sand is produced by passing boulders and stones. It goes through a series of jaw and cone crushers for size reduction. Artificial sand making has a bright future in the construction industry. The demand for artificial sand is increasing rapidly. Here are the few reasons why artificial sand making has a good market opportunity in India.
First of all, you have to procure the major required machines. The list includes vibrating feeder, jaw crusher, impact crusher and vibrating screen for sand making. However, only, sand manufactured by VSI crusher/Rotopactor is cubical and angular in shape. Sand made by other types of machines is flaky, which is troublesome in working.
The Jaw crushers are generally used for crushing stones into metal/aggregates. Manufactured sand from jaw crusher, cone crusher, roll crusher often contain a higher percentage of dust and have the flaky particle.
The manufacturing of the Sand process involves three stages. These are crushing of stones in to aggregates by VSI, then fed to Rotopactor to crush aggregates into the sand to required grain sizes (as fines). Then, do the screening to eliminate dust particles and Washing of sand eliminates very fine particles present within. Finally, the end product will satisfy all the requirements of IS:383. It can be used in Concrete & construction. However, the VSI Plants are available capacity up to 400Ton Per Hour (TPH).