Ready-mixed concrete business
Manufacturing process of ready-mixed concrete
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Process
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Explanation
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Material storage
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- Cement : It is a mineral that hardens when reacted with water, and
generally Class 1 Ordinary Portland Cement is used for the manufacture
of remicon. And, other cement types are used for special purposes.
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- Water : The water must be clean and free of oil, acid, organic matter,
etc.
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- Fine aggregate : Aggregates that pass through the 5mm sieve and remain
on the 0.08mm sieve (salinity less than 0.04%)
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- Coarse aggregate : Aggregates that pass through the 20mm, 25mm, and
40mm sieves (maximum size of aggregates) and remain on the 5mm sieve
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- Admixture : Additives whose usage is generally 5% or more of
water-cement ratio (fly ash, blast furnace slag powder, silica fume,
etc.)
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- Compound : Additives whose water-cement ratio is generally 1% or less
(AE agent, AE water reducing agent, high-performance water reducing
agent, fluidizing agent, etc.)
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Weigh
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A process of weighing the exact amount of raw materials (cement, aggregate, and
admixture) used per ready-mixed concrete (6㎥)
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Mixing
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A process of mixing the weighed materials thoroughly to discharge them uniformly
without being separated
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Transportation
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A process requiring that concrete casting be completed at the site within 90
minutes by transporting the unhardened concrete that the weighting and mixing
processes have been completed with a mixer truck
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