Manufacturing Process of Drain covers 

• Storage of material
• Assembling of moulds
• Preparing reinforcement cage
• Concrete mixture
• Filling of moulds with concrete mixture
• Settling mixture in moulds with the help of Vibration compaction method using ply wood base for shuttering finish.
• Demoulding
• Curing

All casting, including drain slabs are made in large factories as they acquire large space. First concrete mixture is prepared in the ration of 1:1:5:3. Mixing water in the cement, sand and stone will form a paste that will bind the material until the mixture hardens. Once the mixture is ready it is fed into the moulds and settle the mixture properly with vibration table which is called vibration compaction method with ply wood base for best finish. After a while moulds are removed from the slabs and submersed in the curing tank for 7 days.

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