Find a Driveway Installer you can trust in Darwen.

Tarmac is a material made up of broken stone and tar, used for surfacing roads, driveways and other outdoor areas. It’s actually a registered product trademark, but many people use ‘tarmac’ interchangeably with ‘asphalt’. Asphalt is similar to tarmac, but is now more commonly used, and is made from bitumen instead of tar.

If you’re considering laying gravel on your driveway, then you’d probably want to know the amount of gravel you’ll need to complete the project. When you are calculating the amount of gravel you’ll require to cover your driveway, there’s an important factor you’ll need to consider and that is the type of gravel you opt for such as a crushed or pea gravel. There are varying grades which are found in particles from fine to course, with a size ranging from 2mm to 64mm. Therefore, there’s a need to estimate the volume of the gravel while also having the rock’s size in mind. Also, there’s a need to select your most preferred gravel which you’ll like to use before proceeding to dig the depth of your driveway and subsequently determine the amount of gravel that’ll be needed using these excellent tips.

✓ Determine the size and coverage. As you would have expected, the smaller the gravel is, the bigger the coverage will be, and gravels should be at least 4 inches deep. However, if the rocks happen to be a bit large then you can allow for an extra 1/2 inch.

✓ Measure the driveway. Multiply the width by the length and depth to get the size of the driveway in cubic feet. Meanwhile for cubic yards, you can divide the total cubic feet by 27. This is due to the fact that one cubic feet is same as 1.13 tons.

✓ Working with gravel. Here, you’ll have to calculate an underlay measurements differently. You can use 2 inches of road base that’ll be overlaid with 2 inches of gravel.

1. Prepare the sub-baseThe driveway company will excavate, or dig, the existing surface down to a depth of around 200mm. They will remove any debris from the area may place it in a skip or arrange for it to be removed in another way. When they dig down to the sub-base of your previous driveway, they will assess how much hardcore they need and arrange for that to be delivered to the site. They will then spread the hardcore across the sub-base to create a level surface to pour the concrete on. Most good contractors will apply a gel to any walls and doors to protect them from concrete splashes. They will also add any gulley tops, manhole covers or shuttering that’s required.
2. Installation and imprintingNext, the tradespeople will have the concrete either poured from a large mixer vehicle or barrow it in from a mixer and pour onto the surface. They level it with rakes, then add a colour surface hardener in a colour of your choice. This will give the driveway its permanent colour. They will then wait until the concrete has hardened to the correct consistency for imprinting the pattern, then will use special tools and stencils to make the pattern that you asked for. They will then spread a colour powder called a release agent over the surface, and leave to dry for 1 to 2 days depending on the weather conditions.
3. CleaningWhen the contractors return, they will add crack control cuts into the concrete. This is important because concrete expands and contracts in the heat, so there needs to be some give to stop any larger cracks from forming. Then everything is power washed clean, and a chemical wash is also used on the concrete to ensure it’s completely dust-free. The installers will ensure all your walls and doors are clean, which will hopefully be an easy job if they used wall gel.
4. SealingThe final step is to seal the driveway. There needs to have been at least two dry days before the tradespeople can do it, so you might find it’s best to have your pattern imprinted driveway installed in the summer. The contractors will blow any debris away from the surface and dry any damp areas where necessary. They will then add an anti-slip agent to the sealant and brush it on. It’s best to not walk or drive onto your new concrete driveway for about 4 days after sealing to allow everything to set. But after that, you’re ready to use your new driveway!

Is Block Paving Permeable?

Back in 2008, there was a regulation introduced which comes with a requirement guiding the pavement of front gardens. It requires homeowners to incorporate the conventional impermeable driveways which makes for an uncontrolled run off of rainwater into sewers, roadways, local watercourses etc. However since then, new systems have been established which complies with the legislation and permit driveway laying of block paving without requiring planning permission while still providing the same visually appealing features as the conventional systems. Therefore, a short and simple answer to whether block paving is permeable is yes.

A permeable paving driveway (unlike the conventional ones which quickly diverts rainwater towards the edges to local drains) purposefully diverts rainwater into the built paving structure which oversees a controlled release of the rainwater into the environment. Permeable block paving comes with a wide range of benefits which includes the following:

• No Planning Permission Required

Unlike the traditional system, permeable block paving requires no planning permission as it oversees the driveway draining by ensuring that the surface water passes directly through the joints which makes sure the drains are not over worked and minimizing the risk of flood.

• Puddles Reduction By Natural Drainage

A permeable block paving minimizes puddles as well as standing water which helps to boost natural drainage. This is due to the laying process which features little voids that permits the passage of water.

• Natural Filtration

A natural filtration occurs when water is allowed to return to the ground by permeable block paving which helps assists in getting rid of any pollutants from the rain water.

• Flood Prevention

Permeable paving can help to prevent flooding as it absorbs water rather than directing it to the local drains or leaving it to build up on the surface’s top.

• Natural & Sustainable Materials

Natural and recyclable materials can be incorporated in producing permeable paving which is an excellent choice especially if you’re seeking a more sustainable driveway.

While resin bound and resin bonded driveways have similar names, it might surprise you to know that they’re very different. Both paving systems use resin and aggregates (stones) to form a fixed surface, but there are plenty more differences than there are similarities.

Resin bound driveways are made from a resin and aggregate mix that is trowelled onto a bitmac or concrete base. It leaves a smooth, flat finish and you won’t find any loose gravel. It’s also a pourous surface, which means that rainwater can pass through into the ground, avoiding pools and flooding.

However, resin bonded driveways involve spreading resin across a base, then scattering aggregate into it. Most of the stones will stick to the resin, but some will stay loose. That means you’ll get the effect of loose gravel without so much to sweep and take care of. Because the stones are scattered onto a complete layer of resin, water can’t pass through it. That means you could end up with water pooling, and it also means that a resin bonded driveway isn’t frost resistant, meaning it could get slippery.

So which is better – a resin bound or resin bonded driveway? The answer depends on a few things. If you have a period property where a smooth, shiny surface might not complement the look of your home, you might want to go for resin bonded. If you need lots of grip, for example if you’re a wheelchair user, resin bonded may also be the way to go – even though resin bound surfaces still offer enough grip for sloped driveways and ramps. But if you want a low-maintenance, weed-free, permeable surface, resin bound driveways are the way to go.