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Can You Lay Block Paving On Top Of Concrete?

The replacement or improvement of your driveway is unarguably one of the most expensive projects you can undertake in the exterior of your home. When done by a true professional the results can be impressive and visually appealing, however you’d have to pay huge bucks to have this done. This is exactly the situation with block paving as it is not only time consuming, but also a lot more expensive when compared to other types of driveway.

A large chuck of this cost is associated with the removal of the existing driveway. So assuming your old driveway is concrete, can you simply pave over the existing concrete? If yes, will it save you money? The simple and short answer is yes. It’s in fact advisable to pave over concrete as this will not only add around 20% to your home’s value, but also make it look a lot more attractive and pleasing to the eye.

However, there are some problems associated with block paving over concrete. It may be better to remove the concrete in situations whereby the base is substandard. For instance, if the ground underneath the concrete is failing, there’ll most definitely be problems.

Also, there’ll be some issues with settling (not even the cracks). If your concrete is dropping little amounts every year, these can affect the blocks and ultimately lead to dropping of some sections of the block paving in such a way that they’ll no longer be on the same level as the other blocks. Giving a rise to the possibility of drainage issues, tripping hazard and lots more.

Other issues that may crop up can be triggered as a result of using the wrong size block height as well as totally ignoring or overlooking the undulations of the concrete.

Pitting, also referred to as spalling is the event whereby “pits” or small holes start showing on the surface of your concrete driveway which makes it appear both worn and uneven. Concrete driveway pitting is a common but highly frustrating problem for most homeowners. You’ll see some concrete driveways that’ll only start to pit after a couple of years, but this is not true for all concrete driveways as others will start to show signs only after a couple of months. So how do you tackle this issue? Well, it’s relatively simple to tackle, however if you’re not confident or lack the necessary skills, we’d recommend you get in touch with a reliable professional who can guarantee the best results for help. In this guide, we’ll take you through the concrete driveway pitting repair process.

✓ Prepare the pits by cleaning the area, clearing out all debris and more. The small pits can be cleaned with a stiff brush while a sturdy broom will do a good job for larger pits.

✓ Make use of a hose to spray the concrete pits and flush out all remaining bits of waste.

✓ If you’re tackling series of small pits, simply use a caulking gun filled with pre-mixed epoxy and specially formulated for concrete to fill the pits. Clear off the excess eproxy ensuring that its level with the concrete surface. Once done, simply leave for at least 24 hours before the application of a concrete sealant to prevent the wear and tear of the new concrete.

✓ Chisel out a little concrete and clean with a pressure washer. Once done, apply a concrete resurfacing compound mixture into the holes and use a trowel to level off.

✓ Ensure that the repaired concrete driveway is protected from rain and foot traffic for at least 6 hours (or 24 hours for vehicles).

Do you know why paving slaps is a popular choice for both driveways and patios? Well, it’s the versatility! With its durability, diverse colour range, different styles as well as a timeless appeal, paving slabs happen to be a common choice amongst home owners. However, you should know that redeeming these benefits is not as simple as shovelling mortar and pressing down the paving slabs, and neither is it a case whereby you can just copy the laying process of a porcelain paving or block paving. Laying of paving slabs is on a whole other level! As a result, we’d recommend employing a trustworthy professional who can guarantee the best results the first time, especially if you lack proper training or experience to complete the task. In this step by step guide, you’ll discover more about the paving slabs laying process.

• Prepare your paving foundation. This includes checking that your foundation is level, marking out the area to be paved with wooden pegs, removing all vegetation and top soil to a depth of about 200mm to 250mm and raking the area level to ensure and even depth.

• Mix a layer of mortar for each paver and apply the mixed mortar onto the sub base by using the trowel.

• Lay the slabs on top of the laying course at the lowest point of the area to be paved.

• Take note that you may need to cut some slabs depending on the paving area size, your chosen slabs and the pattern selected.

• Once done, brush the area clean and start jointing. The best way to do this is by applying kiln dried sand to the paved area and carefully brush into the joints with a brush.

• Push the sands into the joints using a plate compactor

• Check the paved area for any gaps and fill where necessary.

If your concrete driveway’s looking grubby, it’s best to try cleaning it with water and a brush, or a mild detergent. However, if this doesn’t work, it can be worth trying bleach.

Dilute your bleach down to 50% bleach and 50% water, and apply it to your driveway. Leave it for 10 minutes, then scrub it using gloves and a stiff brush. Finish by rinsing your driveway off with clean water.

It’s important to remember that bleach can stain certain surfaces and kill plants. So, if you’re concerned about materials and boarders around your driveway, it might be best to use a different type of detergent, like floor cleaner or degreaser.

There’s no doubt that weeds coming through your block paving can be unsightly and annoying. But, it’s relatively easy to get rid of weeds that are growing in the joints between your block paving. To start, pull out the larger weeds, and then you can use a pressure washer or firm bristled brush to remove the smaller weeds and debris from the joints in your block paving. It’s best to then refill the joints with additional sand to ensure your block paving remains level. Regularly brushing your block paving and treating with weed killer will help to prevent the weeds from reoccurring.

Do you want to install a new patio? If yes, then on top of the agenda will definitely be the cost of paving slabs. However providing a single and accurate estimate to the cost of your new patio is almost impossible as there are many factors that can influence what the price would be. These factors include the size of the area, the choice of stone, installations and lots more.

To get a more accurate estimate of your cost there’s is the need to look at some factors before calculation. These includes envisioning your patio as well as putting the drainage in mind. Firstly, you’ll need to decide where you want your patio to be - this should include considering whether you’ll get enough privacy sitting on your patio and more. If you’re able to identify where to put your patio, you’ll be able to have a clearer idea of the potential shape and size of the patio. Secondly, there’s a need to consider the drainage because failure to provide adequate drainage will only result in storing of water which leads to a development of algae or vegetation across your patio.

The material you opt for is also a huge determinant of your patio’s cost. When it comes to paving slabs you’ll only get what you pay for. Deciding to go for cheaper paving slabs will most likely lead to frequent staining, slippery surface, tough maintenance as well as constant cracking. Consequently, the act of cutting back on the cost of paving slabs will only you cost you more money in the long run. What’s more? If you have an existing patio you’d like to replace, then you’d probably need to include the cost of removing the existing one.

• Where you live
• How big you want your driveway to be
• What colour or design you would like
• Whether any additional work will need to be completed to prepare the area for the driveway