Posted by Ready mix concrete is a type of concrete which is mixed at any manufacturing unit. It is then transported to site by transit mixer. Ready mix concrete eliminates the necessity of the storing of material at site.
Ready mix concrete is often used at construction site where it is not feasible or not easy to produce concrete at site. Ready mix concrete usage is increasing day by day along with concrete admixtures
Advantages of Ready Mix Concrete
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Better quality control
As in case of RMC use of automatic batching machines is done, higher accuracy can be achieved for mixing.
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No need to store material at site
If at site, there is little space to store the material, RMC would be a better option.
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Mass production is possible
As RMC plants are specifically designed to produce concrete only, it is easy to produce in bulk and also speed of the construction is also improved.
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Fewer labours are required at site
Labours for batching and mixing are not required.
- As batching is done with high precision machines, wastage of cement could be controlled.
- Dust pollution due to cement at site can be controlled.
Disadvantages of Ready Mix Concrete
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Use of set retarder and/or superplasticizer is must
Often the site at which RMC is used and where RMC is manufactured are far away in distance. Hence, travel time is also increased and we need to use superplasticizers.
- Many a times RMC loses its workability before it reaches to the site
- Traffic during transit also imparts its role in losing workability
Further reading
You can read further on ready mix concrete on onlinecivilforum