“RMC is a form of concrete that is a mix composed of Portland Cement, Water, Fine (Sand) and Coarse aggregates. It is produced in a cement manufacturing facility or batched plant in certain amounts and then transported via an a transit-mixer for the site of the construction.”
RMC is eco-friendly in comparison to concrete mix because mixing takes place in closed chambers which reduces air pollution and noise.
Different types of Ready-Mix Concrete
There are three types of ready-mix concrete. They are described below:
Transit mixed concrete
It’s also referred to as truck-mixed concrete in which the concrete is batched in a central plant and thoroughly mixed inside the truck while it is in the transition. Transit-mixing is a method of separating water from aggregates and cement, allowing the concrete to mix immediately prior to use on the site of work.
Transit-mixing is a solution to the problem of early hardening and slump loss that can create delays in transport. The drawback is that its capacity less than the truck that is that transports central-mixed concrete.
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Shrink-mixed concrete
It’s utilized to increase the load capacity of the truck, as concrete is mixed in the plant in order to reduce the size of the concrete. The remaining mixing of concrete takes place within the truck during the its transit or at an construction site.
Central-mixed concrete
The central mix plants may be often referred to by the name of wet batch plant. Concrete is batched and fully mix in stationary mixers on the plant’s site prior to discharging it to the truck mixers.
The benefits of central-mixed concrete are improved quality control, uniformity greater production capacity and less wear on drums of the truck mixer.
The mobile mixer for volumetric is a truck with water and raw materials, which are mixed by the the site of work. Mixing on the truck at the work site solves the difficulties of concrete ready-mixed.
Benefits of Ready-Mix Concrete
The best quality concrete is created by using regular methods and advanced technology.
It is not necessary storage of construction supplies on the site.
The labour involved in the manufacturing for concrete can be eliminated which results in decreasing the costs of labor.
The noise and air pollution on the site of work is reduced.
The waste of the basic materials on the site is minimized.
The time needed to construct.
No delay in completing major projects like building bridges, dams tunnels, etc.
The efficiency of the use of raw materials leads to conservation in natural resources.
Secure work practices and no disruption to the project’s schedule.
Environment-friendly.
Advantages of Ready-Mix Concrete
Requires huge initial investment.
Not recommended for small-scale projects (less amount of concrete needed).
A reliable transportation system is required between the plant for batching and the site of work.
The labourers should be on the site for casting the concrete without any delay, so that there are no collapses in the mix.
Concrete is limited in time and must be used within 210 mins after making the batch. A traffic jam or malfunction of the car may cause problems.
Quality Control is vital since it needs to be mixed with the correct amount of admixtures before being moved to various places. The ingredients used in the mix of concrete are tested thoroughly for physical and quality according to Standard Codes. All of the components are handled by batching plants during the process of making the concrete mix to create extremely durable, long-lasting and high-quality structures.