What is Ready Mix Concrete?
Ready mix concrete is a type of concrete that is manufactured by a mixture of Portland Cement, Water, Sand, and Coarse Aggregate. It is prepared in cement factories or batching plants using precise measurements, then delivered to the construction sites in a Transit-mixer.
There are three types of ready-mix concrete, and the specific combination of ingredients determines the type.
1. Transit Mixed Concrete
2. Shrink Mixed Concrete
3. Central Mixed Concrete
Transit Mixed Concrete
All of the raw materials for transit mix concrete are loaded directly into the truck mixer. There is no plant mixer involved. The mixing water is typically introduced in part or in full at the plant. While loading, the mixer drum rotates at charging speed.
Shrink Mixed Concrete
In central mix concrete plants, the concrete components are mixed in a stationary mixer before being poured into a truck mixer. When the concrete is centrally mixed, the truck mixer serves primarily as an agitator. To deliver concrete from a central mix plant, non-agitating haul units like dump trucks may also be used (usually over relatively short distances).
Central Mixed Concrete
Concrete used in shrink mix construction is partially mixed in a central mixer before being charged into a truck mixer to complete the mixing process. The concrete is accused as the truck mixer rotates quickly. Mixing can be completed at the plant or at the job site.
The size of the central mixer vessel and the length of time required to thoroughly mix or combine all of the ingredients (often less than 90 seconds) determine how many revolutions are required to complete the mixing of shrink mix concrete in the truck mixer. Generally, about 30 turns of the mixer truck drum produce mix uniformity throughout the load.
Advantages of RMC
Ready-mixed concrete is a relatively new innovation in the construction industry and has a number of advantages over traditional site-mixed concrete.
Some of the advantages of ready mix concrete include:
1. Reduced Site Work – With ready mix concrete, there is no need for onsite mixing, which can save time and money.
2. Increased Safety – Because all of the mixings is done at a central plant, there are fewer opportunities for onsite accidents.
3. More Consistent Quality – Ready mix concrete is produced in a controlled environment using consistent ingredients and methods. This results in a higher quality product that is more resistant to variation and weathering.
4. Greater Flexibility – Ready mix concrete can be delivered in a variety of ways to suit the needs of any project. It can be pumped, poured, or even sprayed into place.
5. Increased Sustainability – Ready mix concrete generally contains less water than site-mixed concrete, which means there is less potential for runoff and waste
Ready mix concrete is also more consistent than concrete mixed on-site. When you mix your own concrete, the proportions of the various ingredients can vary slightly from batch to batch. This can affect the strength and quality of the finished product. With ready mix concrete, you know that the proportions are always accurate, so you can be sure that the finished product will meet your specifications.
Ready mix concrete is also generally more cost-effective than mixing your own concrete on site. When you factor in the cost of materials and labor, ready mix concrete is usually the less expensive option. It’s also worth noting that using ready mix concrete can help.
How to Use Ready Mix Concrete
If you’re planning on undertaking a construction project, you may be wondering what type of concrete to use. Ready mix concrete is a popular choice for many homeowners and contractors alike. Here’s a quick overview of what ready mix concrete is and how to use it.
RMC is a convenient option because you don’t have to mix the concrete yourself or haul it in buckets. Plus, ready mix concrete is typical of a higher quality than concrete that you mix yourself.
When ordering ready mix concrete, be sure to specify the strength, amount, and delivery date that you need. The concrete will be mixed according to your specifications and then delivered in a truck with a revolving drum.
Once the truck arrives at your job site, the driver will pour the concrete into the forms or area where you need it. Then, it’s up to you to finish the job by smoothing and shaping the wet concrete.
The Disadvantages of Ready Mix Concrete
Though Ready Mix Concrete (RMC) is a popular choice for construction, but the only downside is that RMC can be difficult to work with if the weather is hot or cold, as the concrete can set too quickly or slowly. Finally, RMC can be susceptible to cracking if it is not properly mixed or placed.
Where to Buy Ready Mix Concrete
If you’re planning on undertaking a construction project that will require ready mix concrete, you might be wondering where the best place to buy it is. There are a few options available to you, and the best choice will depend on your specific needs and circumstances.
One option is to buy ready mix concrete from a local supplier. This can be a good option if you have a small construction project that doesn’t require a large amount of concrete, and you need it relatively quickly. Local suppliers can also be a good option if you want to be able to discuss your project in person and get advice on the best type of ready mix concrete to use.
Another option is to buy ready mix concrete online from a national supplier. This can be a good option if you’re looking for competitive pricing or if you need a large amount of concrete for your project. It’s also convenient as you can have the concrete delivered directly to your construction site.
Which option is best for you will depend on your specific needs and circumstances. Consider all of your options before making a decision so that you can choose the best place to buy ready mix concrete for your construction project.
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