A brief details about Ready Mixed Concrete (RMC)

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What is Ready Mixed Concrete?

Ready Mixed Concrete (RMC) is concrete that is manufactured in a batching plant according to a fixed mix design and then delivered to construction sites in a plastic (fresh) state using transit mixers.

Instead of mixing concrete manually on site, RMC is prepared under controlled conditions, ensuring better quality and consistency.

Materials Used in RMC

RMC is made from the same basic ingredients as normal concrete, but in precise proportions:

·         Cement

·         Fine aggregate (sand)

·         Coarse aggregate (gravel or crushed stone)

·         Water

·         Admixtures (like plasticizers, retarders, accelerators, etc.)

 

Types of Ready Mixed Concrete

1. Transit Mixed Concrete

·         Mixed in the truck mixer during transportation

·         Most common type

2. Shrink Mixed Concrete

·         Partially mixed in plant, then mixed in truck

3. Central Mixed Concrete

·         Fully mixed in the plant and transported to site

🚚 Process of RMC Production

Step-by-step process:

1.      Batching – Accurate measurement of all materials

2.      Mixing – Done in central mixer or transit mixer

3.      Transportation – Delivered using rotating drum trucks

4.      Placement – Poured into formwork

5.      Compaction – Using vibrators to remove air voids

6.      Curing – To gain strength and durability


Advantages over On-Site Mixing:











Quality & Consistency: Superior, as it is produced under controlled, automated conditions.

Efficiency: Faster construction speeds and less labor required on-site.

Reduced Waste & Space: Eliminates the need to store raw materials like sand and aggregate on-site.

Versatility: Suitable for complex structures, high-rise buildings, and infrastructure.

Transportation: Delivered in specialized trucks known as transit mixers, which agitate the concrete continuously to prevent setting and separation.

Applications: Widely used in foundations, columns, beams, slabs, roads, bridges, and for specialized architectural, or high-performance, needs.

Cost: While often more expensive per unit than on-site mix due to quality and delivery, the savings in time, labor, and reduced wastage frequently make it more cost-effective overall. 




 



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