Vishwas Construction Industries Pvt. Ltd., which was started in the year 2008 at the Vishwas Group quarry in Chikkaballapur, manufactures, processes and supplies aggregates of different sizes, and manufactured sand. The operating plant consists of a 250 THP, 3 stage SKID mounted crushing and screening plant from M/s. Puzzolona Machinery Fabricators.
This plant has a capacity of 40,000 M.T. per month. Vishwas Construction Industries Pvt. Ltd. is a pioneer in stone crushing with complete inhouse facilities. To ensure a steady supply of raw materials, Vishwas Construction Industries Pvt. Ltd has obtained large areas on lease from the Department of Mines and Geology, Government of Karnataka.
There are three stages in crushing: the primary, secondary and tertiary stages. The primary stage consists of a dump hopper, grizzly feeder, primary jaw crusher, belt conveyor and stockpile, the secondary stage consists of secondary cone crusher and screening station. The tertiary stage consists of vibrating feeder, vertical shaft impactor, final sizing vibrating screen, belt conveyor, fines separation unit, spiral classifier and high rate thickener or classifier for water reclamation. The advantage of tertiary stage is that we achieve cubical products, which is best suited for road construction, ready mix concrete and other applications. The products obtained from these three stages of crushing are 40 mm, 12 mm, 6 mm aggregates and manufactured sand.
Manufactured sand is produced at site by blasting granite stone, and then crushing it into the required sizes. This is followed by sieving to segregate the particles according to size, and by washing using the Vertical Shaft Impactor (VSI) and spiral classifiers. Finally, different particles are blended to obtain the required grading. The resultant product conforms to the IS 383/1170 specifications and to the Zone II standards. It is used as an alternative to natural and river sand in the manufacture of concrete, RMC, cement, glass, etc.
- Manufactured sand
Sales are mainly concentrated in and around Bengaluru. Some of major clients are Ultratech, B L Kashyap, Shapoorji Pallonji & Co. Ltd., Consolidated Construction Consortium Ltd., JMC projects India Ltd. and Sycon Infra Pvt. Ltd.