How Concrete Mix On Site Works: Pros and Cons Discussed

Concrete mix on site is usually defined as concrete that is mixed and poured on location, rather than elsewhere in a factory or batch plant. With this method, the raw materials are transported to the work site where they are then combined according to a specific recipe.

All concrete components are mixed in particular ratios to get the required strength. The mixing of concrete on-site can be done with or without a mixer.

This type of process can be seen as more efficient since it eliminates the need for transporting ready-mix cement and other pre-mixed components. It also makes it easier to adjust the mix on site due to different factors such as climate, soil composition, and other environmental conditions.

However, workers should give extra attention to the number of materials being added to the mix and the proper mixing methods in order to get an accurate strength of concrete. If done incorrectly, it can lead to weaker or poorly-mixed concrete.

how concrete mix on site works

Everything has its own benefits and limitations, and so does on-site concrete mix. Let us discuss how concrete mix on-site works, and its advantages and disadvantages.

How Does On-Site Concrete Mix Work?

Depending on the size of the project, the procedure for concrete mix on-site may vary. Generally, the raw materials are transported to the site and then added in specific proportions as outlined by the engineer or architect.

The mixing is done either manually (for smaller projects) or with a mixer machine (for larger projects). Smaller projects can get by without a mixer since only a small amount of concrete needs to be poured.

Once the materials are added and mixed, a sample of the concrete needs to be tested in order to check for any inconsistencies. If the test fails, adjustments may need to be made in order for the concrete to meet the required strength.

Bleeding and segregation should also be monitored during the process. Paying attention that this is done correctly and uniformly is key to getting the best results.

What Are The Benefits Of Concrete Mix On-site?

Concrete mix on-site has many benefits, including:

Budget Accuracy

One of the key advantages of on-site mixing is its accuracy. This helps ensure that the right amount of materials are used without any waste or overspending.

With that being said, you have complete control over your budget by only paying for the materials that are required for the job. It also prevents having loads of unused concrete in stock, which otherwise ends up as sheer waste.

Quality Control

On-site mixing also allows for better quality control, as any inconsistencies in the mix can be identified and corrected right away. This helps avoid issues such as shrinkage, cracking, or other structural problems that may arise due to improperly mixed concrete.

Being able to control the proportion and quality of the concrete also helps ensure that the job is up to code and meets all safety regulations.

Male construction worker adding cement in the concrete mixer using bucket at a building site. Man worker manually loading the cement mixer machine at construction site.

Consistency As Required

Utilizing mixed on-site concrete allows you to control the consistency of concrete as you need. Because of the volumetric mixers used, the materials are kept separate and operated through a batch mixing procedure. It means you can have a proper consistency that suits your requirements.

For instance, the requirement of consistency changes in the middle of the task; you will have the option to alter it as it is an on-site mix option. The best thing is the logistical benefit you have when receiving concrete delivery the same day or the next day directly to your location.

Transporting Time & Cost Savings

Having an on-site concrete mix means that you won’t have to pay for transportation costs. Instead of incurring the cost of transporting ready-mix cement, you can save money and time by having it mixed directly at the site.

For instance, if a large project requires several batches of concrete, it would be more cost-effective to mix it on-site instead. This way, you don’t have the hassle of having trucks unloading multiple batches of pre-mixed cement or having to pay for the extra transportation costs.

At the same time, you won’t have to worry about timing issues as the mixing can be done at any time.

You Get Fresh Concrete

Concrete mixing directly means getting access to constant fresh concrete from the team. When it comes to pouring, your mix will always be fresh. You cannot deny that with this, you can keep your concrete as fresh as possible as a massive bonus.

Reduction In Wastage

Keeping all the controls in mind, you can easily reduce the risk of wastage in your project. As you have complete control over the volume and quality of concrete, there’s less room for error when it comes to ordering and mixing materials.

This means that any extra materials can be used on another project or returned if need be. This is a great way to save money and time in the long run.

Disadvantages of Concrete Mix On-site

Of course, there are some disadvantages to concrete mixing on-site as well. These include:

The Need for More Storage Space

Mixing concrete on-site requires a lot more storage space for all the materials. Apart from the volumetric mixer, you will also need to have enough storage for sand, gravel, cement, and water in order to make sure that your mix is up to code.

Labor Costs

While it’s more cost-efficient, it’s important to keep in mind that the labor costs associated with on-site mixing can be higher than if you were to use ready-mix concrete. This is due to the fact that there may be more crew members needed for the job, as well as skilled labor costs.

Time Consumption

Mixing concrete on-site also requires a lot more time than ready-mix. This is because you will have to take into account the needed time for transporting materials and mixing them properly, as well as any drying times associated with the job.

Shot of construction material with tools at a site

Requires Alert For Site Logistics

Apart from the space, you will also have to take care of all materials and tools brought on the site from everything, such as weather, damage, or pilferage.

Supervision While Manufacturing Concrete

You need the experts to keep an eye on the manufacturing process of concrete with all ingredients on the spot.

How Concrete Mix on Site Works: Final Thoughts

In conclusion, concrete mix on-site is a great option for those who want to save money and time while still getting the highest quality concrete for their projects.

It can also be beneficial in terms of reducing the amount of wastage produced and ensuring that you get fresh concrete every time. However, it’s important to keep in mind that it requires a certain amount of storage space, time, and labor costs that you may not have considered previously.

As long as you take these factors into account, then concrete mix on-site can be the perfect option for your project.

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