Concrete that is manufactured in a batch plant according to a predetermined mix design is known as ready-mix concrete (RMC). Ready-mix concrete is typically delivered in two ways. The first is the barrel truck or the in-transit mixer. It delivers concrete that is in a plastic state to the job site. The second type is the volumetric concrete mixer. The ready mix is delivered in a dry state and then mixed on site. Batch plants precisely combine gravel, sand, water, and cement (as per the mix design formulation for the grade of concrete recommended by the structural consultant), allowing specialty concrete mixtures to be developed and implemented on construction sites. In the 1930s, the first ready-mix factory was built. Before the 1960s, the industry did not expand significantly. Since then, it has continued to grow. It has a long life span when compared to other products of a similar use, such as roadways, and is cheaper than other materials. Ready-mix concrete is often use...
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