Advantages of Ready Mixed Concrete
Qualitative concrete is achieved as a ready-mix concrete mix plant that makes use of sophisticated equipment and uniform methods. There is rigorous control over testing materials, process parameters, and continuous monitoring of crucial practices during the production process. Poor control on the input materials, batching as well as mixing techniques in case of site mix concrete is resolved in a ready-mix concrete process.
Speed in the construction practices in ready mix concrete plant is continuously followed by having mechanized operations. The output derived from site mix concrete plant using an 8/12 mixer is 4 to 5 metric cubes per hour, which are 30-60 metric cubes per hour in a ready mix concrete plant. Better handling and proper mixing practice help reduce consumption of cement by 10 – 12%. The use of admixtures and other cementitious materials will help to reduce the amount of cement.
The concrete mixer is used with high versatility. It is placed by following the best concrete placing methods. Cement is saved, and the dust caused will be reduced as ready mix concrete making usage of mass concrete instead of bags of cement. Cement saving will preserve energy and resources. Fewer consumption results in less production of cement hence less environmental pollution. The more durable structure is obtained thus increasing the service life and saving the life cycle costs.
Ready-mix concrete manufacture has less dependency on human labor; hence, the chances of human errors are reduced. This will also reduce the dependence on intensive labors. Small or large quantities of concrete according to the specification is delivered timely at the site. This will require no space for storing the raw materials at the location. There is no delay owing to site based batching plant erection/ dismantling; no equipment to hire; no depreciation of costs. Petrol and diesel consumed are relatively less; thus, noise and air pollution are lessened.
Disadvantages of Ready Mixed Concrete
The transit time from the preparation of concrete to the delivery site is likely to result in loss of operational factors. This will demand additional water or admixtures to maintain the workability as per the specification. At the site, the QA/QC engineer is supposed to check the workability through a slump test before deploying it for construction.
Traffic while the transit of concrete can result in the setting of concrete. This will hence require the addition of admixtures to delay the setting period. But unexpected traffic is a significant problem. The formwork and placing arrangement should be prepared in advance in a large area as the concrete can be bought in more substantial amounts.