Category Archives: FAQs

concrete composition proportioning reinforcements

Concrete Composition: Proportioning and Reinforcements

In part one of this two-part blog series, we went over some of the basics on how concrete is made. Understanding the composition of concrete is often important for those who are caring for or maintaining it, and it’s a pretty simple formula in most cases.

At Lift-Up Concrete, we’re happy to help with a wide range of concrete lifting and leveling services for any concrete slab that’s been damaged in any way. Our professionals are experts in the way concrete is created and poured into your various slabs, and this expertise often informs our concrete repair services. While part one of our series went over the simple recipe usually used for concrete, today’s part two will dig into a few other important areas to be aware of.

Concrete Proportioning

As we discussed in part one, concrete is made primarily from a combination of cement, water and various aggregates (stone, gravel, sand, etc.). As such, a vital part of its proper installation comes down to using the right mixture of these three ingredients.

A concrete mixture without enough cement, for instance, will be thinner and weaker than originally designed. This can often cause cracking, especially if the concrete wasn’t laid to a specific level during installation, or if it was installed over another material that’s less than ideal. This is where concrete lifting services like ours are vital – we’ll carefully lift and repair your damaged slab so that its leveled out properly again.

Concrete Reinforcements

We should also note here that when a given concrete slab is poured (including many concrete foundations), it’s not simply solid concrete. Rather, the slab is also reinforced with fibers and/or wire mesh, which ensures that it is not only properly supported, but also strong and durable. Depending on the project, these reinforcements may be cast directly into the concrete during pouring (which is why it’s important to have a lift service like us in some cases), or they may need to be interwoven after the slab has been poured.

If your concrete was damaged in some way that caused the reinforcement to become exposed, it can leave you with a weakened structure. This is particularly problematic if the reinforcements are what keep your concrete slab from cracking further. Repairing such damage is vital for maintaining your home or business’s structural integrity and keeping it safe as long as possible.

Decorative Concrete

Finally, there are also forms of decorative concrete that include color additives or concrete printing formats. These types of concrete — plus their care and potential repair needs — require a thorough understanding of how additives or printing will impact the slab. If you have questions here, our team will be happy to answer them.

For more on how concrete is made and poured, or to learn about any of our concrete lifting and leveling services, speak to the staff at Lift-Up Concrete today.

concrete composition mix cement

Concrete Composition: Mix and Cement Notes

Concrete is one of the single most common harder substances used in our world today, but many people — even those who utilize it regularly on their property — don’t really understand how it’s made. Concrete is a combination of a few different elements in most cases, combined to create the finished product you see on areas like driveways, sidewalks and numerous others.

At Lift-Up Concrete, we’re happy to offer a wide range of concrete lifting and leveling services for situations where your concrete undergoes any form of damage. Part of this process, though, and part of our common services provided to clients as well, involves understanding the composition of the concrete we’re working on, as this often plays a major role in how we’ll remedy any damage that’s taken place. For those who are unaware, what goes into the makeup of concrete, and how does this composition vary depending on the type of slab needed? This two-part blog series will tell you everything you need to know.

Standard Concrete Composition

Concrete is a mixture of cement, water and various aggregates. The simplest concrete composition consists of 10-15% cement, 15-20% water, and 65-75% aggregates. This mixture needs to set for 8 hours before the concrete can be used.

When we talk about “aggregates,” we’re referring to a few different possible substances: Sand, gravel, crushed stones and possibly a few others. These may be used in different combinations depending on the exact slab you require.

The properties of concrete are determined by its ingredients. Stirring the concrete after it has been mixed will increase the strength of the material as well as cause bubbles to rise to the surface which can be popped prior to final use. Cement also forms a skin on top, which can be scraped off so that it doesn’t interfere with casting or mixing with other materials like gravel.

Concrete and Cement Are Not the Same

While cement is an important ingredient in the formation of concrete, they are not the same and should not be used interchangeably. Concrete is a mixture of cement, water and various aggregates. Cement itself is the substance that creates the glue, binding these three ingredients together.

Cement can be manufactured using one of eight different ingredients: Lime, silica, sulfur trioxide, alkaline, iron oxide, alumina, and calcium sulfate. Within the concrete world, it will then be made into a paste that hardens and holds the other concrete ingredients together within the slab, with highly effective bonding qualities that allow it to create a long-lasting adhesive effect.

For more on the basic composition of concrete, or to learn about any of our concrete lifting and leveling services, speak to the staff at Lift-Up Concrete today.