Ready mixed concrete (RMC) is a pre-mixed concrete that is delivered to the construction site in a truck. RMC is made by a concrete plant, where the ingredients are combined and mixed in a large mixer. The concrete is then transported to the construction site in a truck with a rotating drum. The drum keeps the concrete mixed and prevents it from setting during transport.
RMC is a popular choice for construction projects because it is convenient and easy to use. RMC does not require any mixing or measuring on-site, which can save time and labor costs. RMC is also more consistent than concrete that is mixed on-site, which can lead to better quality results.
There are a few different types of RMC available, each with its own unique properties. The most common type of RMC is general-purpose concrete, which is used for a variety of applications, such as footings, foundations, and slabs. There are also specialty types of RMC that are designed for specific applications, such as high-strength concrete for bridges and overpasses, or lightweight concrete for applications where weight is a concern.
The cost of RMC varies depending on the type of concrete, the volume of concrete needed, and the distance the concrete needs to be transported. In general, RMC is more expensive than concrete that is mixed on-site, but the convenience and quality of RMC can make it worth the extra cost.
Here are some of the benefits of using ready mixed concrete:
- Convenience: RMC is delivered to the construction site ready to use, which saves time and labor costs.
- Consistency: RMC is made in a factory under controlled conditions, which ensures that it is consistent in quality.
- Quality: RMC is often stronger and more durable than concrete that is mixed on-site.
- Versatility: RMC is available in a variety of types, which makes it suitable for a wide range of applications.
Here are some of the drawbacks of using ready mixed concrete:
- Cost: RMC is more expensive than concrete that is mixed on-site.
- Delivery time: RMC needs to be delivered to the construction site, which can add time to the project.
- Storage: RMC needs to be stored in a cool, dry place, which can be difficult on large projects.
Overall, ready mixed concrete is a convenient and versatile option for construction projects. It is more expensive than concrete that is mixed on-site, but the convenience and quality of RMC can make it worth the extra cost.
Here are some additional details about ready mixed concrete:
- Ingredients: The three main ingredients of ready mixed concrete are cement, water, and aggregates. Cement is a powder that is made from limestone and clay. Water is used to bind the cement and aggregates together. Aggregates are inert materials, such as sand and gravel, that add strength and durability to the concrete.
- Mixing process: The ingredients of ready mixed concrete are mixed in a large mixer until they are thoroughly combined. The mixing process is important because it ensures that the concrete is uniform in consistency.
- Transportation: Ready mixed concrete is transported to the construction site in a truck with a rotating drum. The drum keeps the concrete mixed and prevents it from setting during transport.
- Placement: Ready mixed concrete is placed in the formwork by a concrete pump. The concrete pump is a machine that uses a piston to force the concrete into the formwork.
- Curing: After the concrete is placed, it needs to be cured. Curing is the process of allowing the concrete to harden and gain strength. Curing is done by covering the concrete with a tarp or wet burlap.
Ready mixed concrete is a versatile material that can be used for a variety of applications. It is a popular choice for construction projects because it is convenient, consistent, and high quality.