The Kerb in Construction

Definition of Kerb

The kerb is a raised edge along the perimeter of roads or pavements. They are typically made of concrete or stone. These structures provide many benefits such as drainage management and wider pedestrian zones. In some countries, such as Australia and New Zealand, kerbs are spelled ‘curbs’.

In the US, ‘curb’ usually refers to parking or speed restrictions. The UK’s highway code prohibits parking on the pavement “between marked bays”. This is because it can obstruct wheelchair users and pedestrians.

Kerbs come in all forms. But they’ll still ruin your parallel parking game!

Types of Kerbs

To understand the different types of kerbs available, delve into the world of barrier kerbs, mountable kerbs and submerged kerbs. These different options can serve as solutions for a wide range of scenarios, from preventing vehicles from leaving the road to providing a smooth transition between pavement and road.

Barrier Kerbs

Barrier kerbs are an essential part of road construction, providing both safety and guidance. They stop vehicles from veering off the road and protect pedestrians from tripping up.

There are plenty of types of barrier kerbs to fit different needs. For example, F-type kerbs offer a high level of vehicle restraint and are used in areas with high-speed traffic, while S-type kerbs are ideal for car parking or pedestrian areas with low vehicle speeds. Alternatively, T-type kerbs are used when access to traffic is needed for emergency or maintenance vehicles.

In addition, barrier kerbs can be classified based on need: sloped, flushed, half-barrier, or full barrier. Plus, they are very versatile in terms of layout, dimension and colour.

It’s important to invest in the right barrier kerbs when building roads and pavements. Failure to do so puts drivers and passengers at risk and can lead to legal action, such as heavy fines or a damaged reputation. So let’s be mindful and ensure safety on our roads by using the right barrier kerbs.

For those who can’t decide whether to stay on the road or take a detour, mountable kerbs are the perfect solution!

Mountable Kerbs

Mountable kerbs provide a smooth transition from the road onto pedestrian areas. They are low, up to 10cm high, and sloped outward at an angle of no more than 45 degrees. This allows vehicles to cross over without damaging their undercarriages.

Types of mountable kerbs:

Type	Height (cm)	Angle
Tapered	6-10	30-45 degrees
Ramped	6-12	10-15 degrees
Mitre	8-12	30-45 degrees diagonal cut on one side
Cat’s Eye Recess	5-8
Fermer Kitmount Kerb Systems.

Mountable kerbs are great for residential areas, loading bays, roadways, malls, parks, etc. For best results, make sure the kerb meets all building regulations and hire professional services for installation.

So, if you want a safe solution for vehicles and pedestrians, mountable kerbs are the way to go. They provide protection and improve accessibility and safety. And don’t forget about the joy of submerged kerbs – they will soak up both your driving pleasure and the rain.

Submerged Kerbs

Submerged kerbs are a type of kerb installed underneath the road surface. They can be found in places where safety is important, such as pedestrian crossings and bicycle lanes. These kerbs provide a smoother transition from road to pavement or cycleway, thus reducing the risk of accidents.

Uniquely, submerged kerbs are wider than other types. This makes for an easier transition between pavement and road. The material used is usually concrete, making them durable and long-lasting.

The invention of submerged kerbs can be traced back to the early 1900s. There was an increasing demand for safer roads, so engineers created various safety features, including submerged kerbs. These early versions were basic, but still effective for creating a safer environment. Over the years, their design has been improved to meet modern standards while still being effective.

Materials Used in Kerbs

To understand the different materials used in kerbs, take a look at concrete, stone, and brick as solutions. Each material has its own unique properties, benefits, and challenges. Discover which material is the best fit for your kerb project by exploring the benefits of each.

Concrete

Concrete kerbs come in all shapes and sizes – barrier blocks, channels and edging. They make landscapes look beautiful and help reduce erosion near pavements and driveways.

Plus, they can take on heavy traffic without breaking or cracking. This makes them ideal for roads that experience heavy wear and tear.

According to ‘Civil Engineering Portal’, concrete kerbs can last up to 50 years with proper maintenance. It’s one of the best materials for constructing kerb structures worldwide.

If you want an investment that’ll last, stone kerbs are the way to go – your wallet might be a bit lighter, but your driveway will look sharp.

Stone

Kerbs made from natural stone offer both beauty and function. Usual choices include granite, limestone, sandstone and marble. Stone is tough and chemically stable, resisting weathering, erosion and moisture absorption. It can be customised in various sizes, shapes, colours and finishes.

For heavier traffic and loads – like airports – thicker profiles are recommended for maximum support. When selecting stone, consider both technical requirements and aesthetics.

Pro Tip: Brick kerbs – when you really need to hit someone with a brick (but we don’t officially condone that).

Brick

Do you know the world’s largest brick structure? It’s Burj Khalifa in Dubai! It was created with 330,000 cubic meters of high-quality mortar and 55,000 tonnes of rebar. Amazing!

Bricks are great to use for kerb design. You can cut them into shapes to make them unique. Plus, bricks come in all sizes for intricate patterns. Some manufacturers even offer custom designs for personalizing kerbs.

Kerbs: where functionality meets aesthetics – unless you’re an invasive driver!

Functions of Kerbs

To understand the functions of kerbs with channeling of water, separation of areas, and support for pavements as solutions briefly. Kerbs are an essential component of modern pavements, but their role extends far beyond simply bordering the pavement. One of the key functions of kerbs includes channelling of water to prevent flooding. Another is to separate different areas of the pavement, such as a cycle path and pedestrian walkway. Finally, kerbs provide essential support for the pavement and prevent it from shifting over time.

Channeling of water

Kerbs are a must-have! They provide many functions – one of the main ones being to direct stormwater away from roads and pavements. This reduces the risk of flooding and soil erosion. Plus, they keep pedestrians and vehicles separated, making roads safer.

I’ve seen how important kerbs are first hand. On a damp day, I took a walk down a path without any curbs and soon enough, ankle-deep puddles had formed. With no way to direct water, it was difficult and dangerous to walk.

Kerbs are an easy and stylish way to keep areas separate. So why build a wall when you can just install kerbs?

Separation of areas

Kerbs are critical for separation in urban and suburban landscapes. They create a physical boundary between roadways, pedestrians, and landscaping. Here’s a table showing the type of kerb for each type of area:

Type of Area	Type of Kerb
Roadway	Mountable Curb
Pedestrian Sidewalk	Barrier Curb
Landscaping	Rolled Garden Curb

Mountable curbs give access to larger vehicles and keep pedestrians safe. Barrier curbs stop cars from veering onto sidewalks. Rolled garden curbs protect plants. Kerbs also help drainage management and protect infrastructure.

Pro tip: Choose the right kerb for the area for best performance. Without kerbs, pavements would have no shoulder to lean on.

Support for pavements

Kerbs provide a buffer for bicycles and pedestrians, keeping them away from any vehicular traffic. Plus, they help protect roadside drains and manage water. Wide kerbs can be used as benches or to advertise local businesses.

For pavement to last longer, invest in high-quality kerbing materials. This will save money in the long run due to lower maintenance costs. It’s like a puzzle – you just need the right piece to get the right curb appeal.

Installation of Kerbs

To install kerbs, you need to follow a set of steps. The process begins with base preparation and continues with laying the kerbs, jointing, and finishing. Each step is critical to achieving a long-lasting solution that looks great.

Base Preparation

Ready to kerb? Base prep is key! Clear away debris and vegetation. Dig into the ground, at least 150mm deep. Spread a layer of MOT type one stone, 75mm deep, and compact it. Then, add a layer of sharp sand for bedding. Haunching or backing concrete may be necessary to keep them in place over time. It’s best to do this on a dry day for a dry foundation. Get ready to kerb!

Laying the Kerbs

Kerbing is the key to a polished and professional-looking pavement. Here’s the how-to, so you can be a pro:

Step	Instructions
1.	Map out the area where you’ll install the kerbs.
2.	Dig a foundation trench to the right depth, width, and length, and make it level.
3.	Put in an edge restraint or concrete strip with relevant steel reinforcement, as shown on the design.
4.	Place 25mm sand bed on the concrete base for a bedding course.
5.	Lay each kerb unit, interconnecting them, levelling with a spirit level, and securing with mortar joints.
6.	Backfill any spaces behind the kerbs with granular material, and compact it slightly.

Before you start, double-check all measurements and specs.

Pro Tip: Cover the installed kerbs with protective material for excavation or moving heavy equipment around. Make your masterpiece and get the jointing and finishing right – like a pro!

Jointing and Finishing

Start with cleaning the kerbs’ joints. Remove all dirt, dust, and particles.

Mix the jointing mortar as per the manufacturer’s instructions. Use a pointing tool to fill the joints. Wait 15-20 minutes for the mortar to set. Finish off with a smoothing tool.

Pick the jointing material carefully – it should match or complement the kerb colour. Installation companies handle this well.

Did you know? Jointing and Finishing has been around for over a century. It evolved with innovations like acrylic sealants and coloured fillers.

Kerbs need maintenance – neglect it and it’ll crumble and cause damages.

Maintenance of Kerbs

To maintain kerbs with regular cleaning, repairing damages, and replacement of kerbs, you need to consider the right solutions to address the ongoing wear and tear. From debris buildup to cracks or unevenness, a well-maintained kerb can last significantly longer with due care. In this section, we will explore the steps involved in regular cleaning, repairing damages, and the importance of timely replacement of kerbs.

Regular Cleaning

Maintaining kerbs is essential! Cleaning them regularly removes dirt and debris, preventing cracks from forming. Apart from looking better, clean kerbs are safer for pedestrians and don’t attract vermin. Pressure washing can make a big difference, helping to remove tough grime and stains. Keep drainage systems working properly too – clogged drainages can cause water to overflow, leading to accidents. In cold weather, spread salt or grit over the surface of the kerb to prevent slipping.

Don’t neglect your kerbs! This could lead to costly repairs and potential health hazards – act now before it’s too late!

Repairing Damages

When it comes to kerbs, you gotta have the right tools. Check the damage – is it serious or not? Depending on how bad it is, you can use different methods.

One way is pre-cast concrete. That’ll last a while. If it’s just minor damage, patching with asphalt can work. But, make sure there’s proper drainage, otherwise you’ll be in trouble.

Also, remember to follow any legal requirements when doing repairs. Follow these tips, and your kerbs will go the distance.

Pro tip: Inspect often, so you can fix small issues before they become bigger. And, when you start seeing your car use it as a speed bump, it’s time for replacement.

Replacement of Kerbs.

Maintaining roads is essential for smooth transportation. Replacing kerbs is an important part of this. If neglected, road safety is at risk.

Here are five steps for replacing kerbs:

1. Cut away the asphalt/concrete around the existing kerb with a saw/hammer and chisel.
2. Use a pry bar to dislodge the old kerb.
3. Level and compact the base layer where needed.
4. Carefully place new kerbs so that they are level with each other and the pavement.
5. Fill any gaps with mortar or cement mixture.

Always get permission from authorities before doing any work. And choose materials suitable for the environment, like granite, limestone or rubber.