Cold Mix, Hot Mix or Ambient® Asphalt – When to use what

If you've got a project on your hands that involves paving or using asphalt, you are going to want to be clear about the differences between hot and cold. Here's what you need to know.

Cold or Hot Asphalt – When to use what?

From a build, repair, and maintenance standpoint, asphalt is one of the most reliable (and versatile) materials for roads. From laying a new driveway, to patching up potholes, or giving roads a face-lift, it's good to know the differences between cold mix asphalt and hot mix asphalt. Each kind has its strengths and how to use them appropriately depends on what the job calls for.

What is Cold Mix Asphalt?

Cold mix asphalt is a variety that doesn't require being heated up prior to use. It's prepared by mixing bitumen with aggregate and a solvent that keeps it soft and ready to use at room temperature. Unlike hot mix asphalt, which should be heated before it can be laid, cold mix asphalt is convenient and easy to work with on various projects.

Why choose Cold Mix Asphalt?

1. Easy work – It's ready to use straight out of the bag. This is a perfect solution for quick fixes and smaller projects.
2. Works in cold conditions – Cold mix asphalt can be applied in cold climates, whereas hot mix asphalt may not be as easy to work with in cooler climates.
3. Budget friendly – This is an affordable option for minor works.
4. Great for temporary fixes – Not as durable as hot mix asphalt, but works just fine for temporary repairs.

Common Uses of Cold Mix Asphalt

1. Smoothing out potholes and minor cracks
2. Temporary repair for roads
3. Driveway repairs
4. Emergency repairs during winter

What is Hot Mix Asphalt?

Hot mix asphalt is the most common choice for large-scale paving projects. It's made by heating bitumen and other aggregates to high temperatures, creating a strong and durable material. To get the best results, it needs to be applied while it's hot, which means specific equipment and expertise are often needed.

Why choose Hot Mix Asphalt?

1. Durable and long-lasting – It's tough enough for heavy traffic and harsh conditions.
2. Temperatures Sensitive – Needs to be used while hot because it cools and hardens quickly.
3. Smooth finish – Provides a professional, polished look that's also safer for vehicles.
4. Needs equipment – Its application often requires professional tools and expertise.

Common Uses for Hot Mix Asphalt:

• Paving roads and highways
• Resurfacing large areas
• Heavy-duty industrial surfaces
• Long-term fixes for major damage

How to Choose Between Cold Mix and Hot Mix Asphalt

It all depends on the size of your project, the weather, and your budget. Here's how to decide:

Project Size

• For small repairs like potholes or cracks, cold mix asphalt is the way to go. It's pretty simple and doesn't require heating.
• For bigger jobs, like paving roads or building a new driveway, hot mix asphalt offers better durability and performance.

Weather

• Cold mix asphalt works in a wide range of conditions, making it a reliable choice for emergency repairs, especially when it's colder
• Hot mix asphalt is best used in warm weather. Cold temperatures can cause it to cool and harden too quickly, which might affect its quality.

Longevity

• If you want a long-lasting solution, hot mix asphalt is your best bet. It's designed to handle heavy loads and wear over time.
• In temporary solutions or low traffic areas, cold mix asphalt does a better job.

Budget

• Cold mix asphalt is more affordable for smaller jobs, as it doesn't require special machinery to mix, therefore costs are kept low.
• Hot mix asphalt may be more expensive upfront, but for bigger projects, the result of its high durability and lessening of maintenance will be most cost effective in the long run.

Benefits of Cold Mix Asphalt

1. Fast and Convenient – Ideal for quick repairs.
2. Lower Equipment Costs – Does not require special machinery or heating equipment.
3. Works in Many Conditions – Ready for application across seasons and climates.
4. Easy Storage – It lasts longer in storage and is ready when you need it.

Benefits of Hot Mix Asphalt

1. Extremely durable – holds up to heavy traffic and inclement weather.
2. Professional finish – appears smooth, safe, and visually pleasing.
3. Cost-effective for large projects – it requires fewer repairs over time.
4. Versatile – It's used on a variety of applications from highways to car parks.

Clearing Up Some Asphalt Myths

Myth 1 – Cold Mix Asphalt is Only for Temporary Repairs

Although used for temporary repairs often, modern cold mix asphalt is good enough even for low-traffic areas.

Myth 2 – Hot Mix Asphalt Can't Be Used in Winter

It's more difficult, but not impossible. With proper equipment and preparation, hot mix asphalt can be laid in colder months as well.

Myth 3 – Cold Mix Asphalt is Lower Quality

False! Cold mix asphalt lends itself to different applications, such as small repairs or remote locations where heating is not possible.

Tips for Great Results with Asphalt

Prepare the Ground

Cleaning and preparing the area will provide the right bond for the asphalt.

Select the Correct Variety

Consider your project's size, the weather, and long-term needs.

Hot Mix Asphalt

For high-quality jobs, seek out experienced contractors in placing this material.

Maintenance

Sealing regularly and cleaning will add to the longevity of your asphalt.

To summarise…

There can be quite a complicated choice between cold mix asphalt and hot mix asphalt. Cold mix asphalt is ideal for quick fixes and minor projects, but hot mix asphalt can be more suitable in terms of durability and major work. Take a minute to consider what your project needs, the weather, and your budget, and you can pick the right mix to get lasting results. Look no further than EZ Street for effective, industry-first asphalt technology that works in a range of climates and conditions.

Ambient® Asphalt Suppliers In Australia

EZ Street Asphalt is a reliable Ambient® asphalt supplier and pothole repair company that operates Australia-wide. If you are interested in purchasing Ambient® asphalt and have any questions regarding asphalt patches, including Ambient® asphalt price per tonne, contact us today and we will be happy to help you with all your asphalt needs.