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| Ready Mix Concrete |
Ready Mix
Concrete is a specialized material in which the cement aggregates and other
ingredients are weigh-batched at a plant in a central mixer or truck mixer,
before delivery to the construction site in a condition ready for placing by
the builder. Thus, `fresh' concrete is manufactured in a plant away from the
construction site and transported within the requisite journey time. The RMC
supplier provides two services, firstly
one of processing the materials for making fresh concrete and secondly, of
transporting a product within a short time.
Sometimes
Materials such as water and some varieties of admixtures can be transit-mixed
(also known as Transit Mixture), that is they can be added to the concrete at
the jobsite after it has been batched to ensure that the specified properties
are attained before placement. Here materials are batched at a central plant
and are completely mixed in the Batching Plant or partially mixed intransit.
Transit-mixing keeps the water separate from the cement and aggregates and
allows the concrete to be mixed immediately before placement at the construction
site (Dry Concrete). This method avoids the problems of premature hardening and
slump loss that result from potential delays in transportation or placement of
central-mixed concrete.
Additionally,
transit-mixing allows concrete to be hauled to construction sites further away
from the plant. There are several types of RMC plants varying in type of mixing
and capacity of concrete production.
