Self-leveling concrete is a strong, concrete-like flooring compound that's gained popularity in the U.S. in recent years. Unlike traditional cement, self-leveling concrete flows easily and levels itself over old flooring materials, broken concrete and other uneven surfaces. Due to these properties, self-leveling concrete is most often used as an under-layer before laying other flooring materials on top, such as vinyl or tile.
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However, since self-leveling concrete is durable and cost-effective, many home and business owners wonder whether they can use the concrete layer as flooring itself. In this article, Portamix explains what you should know about self-leveling concrete, especially if you want to use it as a finished floor.
What is Self-Levelling Concrete?
Self-leveling concrete looks and functions much like traditional concrete but, when mixed using the correct self-leveling mixture, it flows much easier, allowing it to fill cracks, dips and imperfections on the foundation below it. Once fully spread across a surface, it takes about two hours to set and six hours to dry completely. Self-leveling concrete contains high volumes of polymers, which allow it to bond to itself and the material beneath it. While self-leveling concrete is more expensive than traditional concrete, it can save you time and labor by removing the need to replace existing, damaged flooring and creating level floors as soon as it's poured. As soon as it dries, you're ready to install new vinyl, tile, hardwood or carpet on top.
Common Applications of Self-Levelling Concrete
Self-leveling concrete is a useful, cost-effective solution to concrete issues in most homes and buildings. If you have damaged, cracked, pitted or splitting concrete in your home or business that is too substantial for traditional concrete patching, you can rely on self-leveling concrete to level your floors with ease. You can also use self-leveling concrete to fix uneven floors or an uneven foundation when the problem isn't severe enough to warrant mud-jacking or foundation repair. Finally, depending on the aesthetic or needs of your space, you may want to use self-leveling concrete as your finished floor. Thanks to its versatility and durability, self-leveling concrete leaves you with plenty of options for your commercial, residential or industrial space.
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Can Self-Levelling Concrete be Used as a Finished Floor?
Self-leveling concrete can be used as a finished floor in most interior spaces. It's strong and durable, standing up to foot traffic and everyday wear and tear. Furthermore, there are countless coloring and finishing additives you can use to modify the look of self-leveling concrete to match your design aesthetic. Whether you own a home or a commercial space, self-leveling concrete can save you tons of money on repair and maintenance costs because it's easy to clean. Plus, if self-leveling concrete flooring gets damaged, you can always mix another batch and patch it up.
How to Install Self-Levelling Concrete
Self-leveling concrete only functions as well as it's installed, so you should have a professional mix and pour system to ensure a successful job. Portamix, for example, offers our Mega Hippo Mixer, a revolutionary self-leveling mixer featuring a powerful electric motor for thorough mixing capabilities, a closed-loop control handle to regulate pouring, and a sturdy frame with wheels for excellent maneuverability on site. A Mega Hippo Mixer mix and pour system helps to remove lumps and bumps from your self-leveling mixture, helping you achieve an even mixture and regulated pour, so you complete the job quicker and more accurately.
To learn more about using a Portamix mix and pour system for your self-leveling concrete job, us on
Well, well... so I did a small room and a hallway in my basement. The job itself went not bad but I noticed when I was mixing the SLC it had kinda black oily spots in it... I mixed for a bit more than the 3 minutes indicated in the manufacturer instructions but also didn't find it as liquidy as I saw from the vendor's videos (which is fine).
Anyway... I started reading about some sites and found that both it is not recommended to use it past it's expiration date (had no idea cement had an expiration date). Of course, nobody say why exactly. So went to see my bags and sure enough the expiration date listed is Oct .
My question to your knowledgeable folks is this - is there really a harm in having "expired" SLC underneath your subfloor? Will it crack with time? Will it sink? Will it be less durable?
I will replace the remaining bags to complete the jobs with stuff that is less than 1 year old, but should I remove already applied cement and re-apply?
Thank you much
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