Jul 13, 2018 1:49 am
One of the most common components of a home renovation is to replace the floor coverings. This usually involves tearing up tiles for new ones, or a trendy alternative is to polish the concrete floor to bring it up into a beautiful, shiny masterpiece.
Firstly, the hard work of removing the tiles! This is now super easy with a trolley mounted jackhammer and tile smashing moil. The jackhammer is rubber mounted so it is very forgiving on the operator's hands, and a foot pad allows the operator to lean on the trolley and plough though the tiles. Check it out on our website for more information or to book in a hire.
Check how easy the jackhammer and trolley can rip these tiles up!
Now for the tricky bit – preparing the concrete for the next floor covering.
A quick intro to concrete grinding:
Concrete grinders use special discs with tiny pieces of diamond embedded in the surface. When the machine rubs the disc over the concrete, the diamond fragments cut across the concrete surface, shaving off a fine concrete dust. You can choose different types of discs, and also different machine weights to achieve a desired finish.
The first step is to remove the remnants of old tile glue. This is done with a concrete grinder - we offer two different sizes – a 250mm machine and a 480mm machine. They are the market leading Floorex machines that are used by all professional concrete grinders in the industry. Both machines can be connected to a Hilti vacuum cleaner to minimise the dust. Be aware that concrete dust is toxic, so ensure you wear a filtered mask (we can also provide these).
Which grinder should you use? The 250mm grinder is typically used for smaller areas (less than 50m2) and as an edging grinder - to grind within 1mm of the walls. It’s best to remove the skirting boards before grinding to get a complete finish. Surfaces larger than 50m2 can start to take a long time with this smaller machine.
Another aspect to consider when choosing which machine is the flatness of the floor – if there are awkward joins between slabs; transitions between different slopes to remove, or a significant amount of glue still on the concrete, we recommend that you use the 480mm machine as it has a larger range of flexibility in the grinding plate to achieve a more uniform grind on these uneven areas.
For more information or take make a hire booking, check out our website for the 250mm grinder and the 480mm grinder. See these two videos below:
Which colour diamond disc should you use? Refer to our disc selection page on our website which gives you a quick overview of which discs to use, or call our friendly staff and they can advise you further on 1300 546 122.
Grinding the floors for new tiles
Once the glue has been removed, the next step is to prepare the concrete surface for new tiles or lacquer. For tiles, the floor simply has to be clean and flat to ensure the best possible results. Move the grinder around in a constant motion until you achieve a consistent finish across the floor. Avoid focusing on small patches for extended periods. Remember to empty out the dust in the vacuum cleaner, and ensure you wear a filtered mask at all times!
Grinding the floors for polished concrete
This requires significantly more grinding as several millimetres of concrete need to be removed to expose the stones in the slab. This will bring out the speckled look with all the different colours. Generally 2 to 3mm is plenty – if you go too far, the stones will start to be pulled out of the slab leaving holes. These can be filled in with a special putty.
Use a courser grit disc (like a 30 grit) to remove the bulk of the concrete, then attach a much finer grit disc (an 80 grit) for the final grind. The purpose of the fine grit is to remove slight imperfections that remain in the surface to leave a perfectly smooth finish, ready for the coating.
Concrete grinding can be difficult, however it is still very possible for a novice to achieve a perfect, professional finish. The key is to have good quality machinery – I would only recommend Floorex concrete grinders. These are known in the industry as the market leader and will greatly increase you chances of success. They are simple to setup and use. If you would like to know more or would like to hire the equipment, contact our friendly staff on 1300 546 122
Call us for friendly advice on 1300 546 122, or visit www.megahire.com.au!
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