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Have questions? We have answers. This FAQ section is here to guide you. And if you don’t find what you’re looking for, feel free to contact us. Because every successful project starts with a good conversation.
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What is the difference between a slab and a paver?
The main difference between a slab and a paver lies in their design and intended use. Pavers are made with interlocking properties and are structurally suited for surfaces exposed to vehicle traffic. Slabs, on the other hand, do not have interlocking properties and are primarily used for pedestrian areas such as walkways, patios, and pool surrounds.
Pavers and slabs can also be combined to create visual effects such as borders and mosaics.
Why are they called interlocking concrete pavers?
It’s not their shape that makes them interlocking pavers, but how the system works as a whole. When properly installed, the pavers, together with the bedding sand, joint sand, and edging, are less likely to shift.
Can pavers be installed over an existing concrete driveway that is in good condition?
For driveways, balconies, patios, or landings that are in good condition, the Blu 45 mm concrete overlay system is the ideal solution. This thin concrete slab provides a lightweight overlay that will not stain or crack like poured concrete, and it also resists de-icing salt.
For driveways that are not in good condition, although we do not recommend it, it is possible to cover them with pavers. There are two major factors to consider. First, the installation will raise the surface where you plan to install your pavers by at least 5 to 7 cm, or 2 to 3 inches. Second, as concrete slabs can contract in colder temperatures, the pavers may contract as well. You should also take into account any doors or other areas that could be affected.
What about snow removal on my pavers?
Just like concrete and asphalt surfaces, pavers can be scraped and shovelled. In fact, the edges and joints around the pavers help snow and ice melt.
When hiring a snow removal contractor, we recommend checking that their equipment is fitted with Teflon blades to avoid damaging the pavers. In addition, de-icing salts such as sodium chloride and calcium chloride can be used without damaging the pavers.
Are there benefits to sealing pavers?
Sealing pavers helps prevent stains. Techo-Bloc also recommends keeping a few extra pavers on hand in case staining occurs, so they can be easily replaced.
The appearance of lines and patterns will naturally evolve and change over time. Be sure that all your pavers come from the same production batch, as this helps ensure colour consistency throughout your project.
What is the whitish residue I’ve noticed on some pavers?
This residue comes from a natural phenomenon called efflorescence, which is normal and common in concrete and clay brick products. Occasionally, mineral salts naturally present in the materials used to make these products can migrate to the surface when exposed to water.
This is not a product defect and will not damage the pavers. Efflorescence disappears over time, usually within 6 months to a year. Concrete product manufacturers cannot offer a warranty against efflorescence.
For more information, please refer to our warranty.
What can be done to remove moss between the joints of my pavers?
There is little that can be done in damp, shaded areas to prevent moss from continuing to grow. However, you can try removing it with a solution of 10 parts water to 1 part bleach.
For a permanent solution, consult a professional to correct the moisture issue that is encouraging moss growth.
What products should I use to maintain my concrete pavers?
It is important to use products specifically designed for paver maintenance. Hydrochloric acid is not recommended, as it can discolour the pavers.
Gasoline or Varsol should also not be used to clean oil stains. These products only dissolve the oil, causing it to penetrate deeper into the paver and making it even more difficult to clean.
Have more questions?
Didn’t find the information you were looking for, or need more details? Our team is here to help. Contact us and let’s talk about your project!