How To Pour a Concrete Driveway

A concrete driveway is a smooth, long-lasting entrance to your property that can withstand heavy use and harsh weather conditions. Pouring a driveway yourself is a more advanced DIY project, requiring time, skill, and a few thousand dollars. But taking on the project yourself is much more affordable than hiring a professional contractor.

In this guide, we’ll show you how to pour a concrete driveway, from preparation to finishing touches. This Old House mason Mark McCullough demonstrates the steps involved in the video above.

Preparing the Site

First, gather the necessary materials and prep the area.

Tools

Here are the tools you’ll need for this project, including safety gear:

Removing the Old Driveway

If you already have a driveway in place, you’ll need to remove it. This may involve breaking up concrete, asphalt, or other surfaces. Here’s how to approach this task:

1. Call a utility locating service to mark any underground lines.
2. Use a jackhammer to break up the old driveway surface.
3. Switch to picks and sledgehammers to complete the demolition.
4. Remove all debris and dispose of it properly, recycling materials when possible.

Evaluating and Preparing the Base

Once the old driveway is removed, assess and prepare the base for the new concrete. McCullough stresses that a well-settled base is crucial, noting that if the existing base is gravelly and stable, it may not need extensive work. Take these steps:

1. Analyze the existing base for stability and drainage.
2. Add a layer of gravel if necessary to improve drainage and provide a stable foundation.
3. Use a plate compactor to make sure the base is level and well-compacted.

Installing Reinforcement and Expansion Joints

You’ll need to add reinforcement and expansion joints to strengthen the concrete and allow for natural movement. Here’s how:

1. Lay wire mesh across the prepared base to reinforce the concrete.
2. Elevate the wire mesh slightly so it will be embedded within the concrete.
3. Install expansion joints along the edges where the driveway meets existing structures.

Pouring the Concrete

With the site prepared, it’s time to pour the concrete. This step requires careful planning and execution for a smooth, durable surface.

Choosing the Right Concrete Mix

The concrete mix you use affects your driveway’s durability and longevity. Consider the following factors when choosing a mix:

• Climate conditions in your area: If you live in a colder region, consider using air-entrained concrete, which includes tiny air bubbles to help the concrete resist cracking from freezing and thawing. You might also need to use a concrete mix with a lower water-cement ratio to reduce the risk of freeze-thaw damage. If you live in a hot climate, use a mix with retarders to slow down the setting time and prevent the concrete from setting too quickly. You may also want to consider lighter-colored concrete or reflective coatings to reduce heat absorption and surface temperatures.
• Desired finish and color: Your desired finish will affect which type of concrete you use. You can use standard concrete for a textured finish, such as broomed or stamped, but you may need a high-quality mix with good workability and a lower water-cement ratio for a polished finish. To color your concrete, you can use a mix with integral color or apply surface stains or dyes; just make sure the colorant is compatible with your chosen mix and everything is mixed uniformly.
• Expected traffic and weight load: A standard concrete mix of around 3000 PSI (pounds per square inch) is likely enough for residential driveways with light traffic, but you’ll want something heavier like 4000 PSI or higher if your driveway will experience heavier loads, such as large trucks or frequent heavy vehicles. For this project, McCullough recommended using a 5000 PSI concrete mix, which provides excellent durability for residential driveways.

The Pouring Process

Pouring concrete requires coordination and quick work. Follow these steps:

1. Arrange for a ready-mix concrete truck to deliver the concrete.
2. Pour the concrete evenly across the prepared site, aiming for a thickness of about 6 inches.
3. Use shovels and rakes to spread the concrete as it’s poured.
4. Use a screed to level the surface and remove excess concrete.

Leveling and Smoothing

After pouring, level and smooth the concrete surface with these steps:

1. Use a bull float to even out low spots and knock down high spots.
2. Work quickly before the concrete begins to set.
3. Pay special attention to edges and corners.

Finishing Touches

The finishing process is what gives your concrete driveway its final appearance and texture.

Creating a Skid-Resistant Surface

To improve safety and traction, especially in wet conditions, here’s how to create a skid-resistant surface:

1. Allow the concrete to set partially.
2. Use a broom to create a textured finish across the surface.
3. Work in straight lines from one end of the driveway to the other.

Edging and Detailing

Proper edging gives your driveway a polished look and helps prevent chipping. Follow these steps:

1. Use an edging tool to create a curved edge along the sides of the driveway.
2. Pay special attention to areas where the driveway meets other surfaces.
3. Smooth any imperfections with a hand trowel.

Curing the Concrete

Proper curing increases your driveway’s strength and durablity. Keep the following in mind:

• Allow the concrete to cure for at least seven days before use.
• Keep the surface moist during the curing process to prevent cracking.
• Avoid using salt or de-icing chemicals on the new concrete, especially during the first winter.

Maintenance and Care

Proper maintenance keeps your concrete driveway looking good and increases its lifespan. Follow these maintenance tips:

• Address any cracks or damage promptly to prevent further deterioration.
• Avoid using metal shovels or sharp tools that could damage the surface.
• Regularly clean the surface to prevent staining and deterioration.
• Seal the concrete every few years to protect it from moisture and chemicals.