Crushed Concrete & Concrete Aggregate 101 - Superior Groundcover (2024)

Looking for a cost-effective, more sustainable way to pave your driveway or accomplish your construction project? Crushed concrete, also referred to as recycled concrete aggregate, may be your answer.

What is Crushed Concrete or Concrete Aggregate?

Crushed concrete is made up of asphalt debris from other construction projects that can be reused to create driveways, pathways, garden beds and more. When any concrete structure, road, sidewalk or parking lot is demolished, that concrete is usually deposited in a landfill. Concrete is not biodegradable and won’t decompose — so it simply sits there taking up space and causing environmental problems. All the while, new concrete is simultaneously created to begin the process again. Thankfully, there is an alternative to this unsustainable and inefficient process: Recycling!

Recycling crushed concrete to be reused helps reduce landfill overflow AND saves more resources from being used to create new concrete. The concrete can be crushed down to specific sizes, cleaned so that unwanted debris is removed from the mixture, and reused as a solution to a number of construction and landscaping problems.

How can I use Crushed Concrete?

  1. Walkways / Pathways
    Crushed Concrete can be reused to create beautiful walkways in your home or business landscaping. To make sure that your walkway looks as uniform as possible, make sure that the pieces of crushed concrete are all from one project site. This will also ensure that they are easier to form into your path since they will all be similar sizes. Using uniform pieces will also prevent rainwater from infiltrating your path and causing damaging runoff.
  2. Raised Garden Beds
    Raised garden beds provide many benefits such as improving drainage and warmer soil. These benefits allow for faster growth in the spring. Crushed concrete laid in layers is the perfect base for creating a raised garden bed.
    Crushed Concrete & Concrete Aggregate 101 - Superior Groundcover (1)
  3. Retaining Walls
    Layering crushed concrete is also a great way to create a retaining wall and control erosion on slopes or hills in your yard. Different sizes of crushed concrete can function together to help prevent erosion. A layer of smaller, more broken-up crushed concrete as a base will contribute to the stability of the wall. Following with layers of larger recycled concrete packed with dirt will create an even, beautiful retaining wall.
  4. Drainage
    Smaller, more broken up concrete is a great drainage alternative to gravel.

What is the process of installing/delivering crushed concrete?

Purchasing and installing your own crushed concrete material is possible, however, it can be a challenge to find the right type of crushed concrete for your project without professional assistance. Purchasing the wrong size or type can cause drainage or erosion issues. Crushed concrete is also heavy and difficult to install. Unless you’re a seasoned landscaper who’s used to heavy loads and precision installation, call a professional to ensure the job is done right the first time.

The installation process with Superior is simple. Our team of experts will recommend the right type and amount of crushed concrete material you’ll need for your project, and easily deliver and install the material in one step with our stone slinger trucks. Our fleet of stone slinger trucks also allows us to install material without driving over and crushing your lawn or other landscaping.

Pros and Cons of Crushed Concrete

  1. Price
    The first check in the pro column for crushed concrete is the price. Because the process is more efficient and requires less resources, crushed concrete is significantly cheaper than new concrete.
  2. Sustainability
    Using crushed concrete is a much more environmentally-friendly way to complete your project. It not only saves landfill space, conserves resources, and reduces waste; it also reduces carbon emissions produced in the concrete manufacturing process.
  3. Multi-Purpose
    Crushed concrete can be used in a variety of circ*mstances. It’s used by homeowners, contractors, and landscapers as a practical material for general problem-solving like creating a base for a driveway, garden beds, or overall construction purposes.
  4. The Look
    Some people prefer the look of new materials for their landscaping needs over recycled concrete aggregate. Our solution? Use the recycled materials to create a solid base, then use new materials for the more visible parts of your project. This way, you can achieve the look you want, while still being sustainable and cutting costs.

Types of Crushed Concrete

There are many types of crushed concretes. Our expert team at Superior is happy to help guide you towards the best material for your project. Here are some of the kinds of crushed concrete we offer and what they can be best used to achieve

  1. 21AA CRUSHED ASPHALT
    21 AA Crushed Asphalt contains oils that cause it to heat faster and bind together, preventing dust. It can be successfully used for roads, driveways, or walkways.
  2. 21AA CRUSHED CONCRETE
    21AA Crushed Concrete is great for drainage which makes it the right solution in wet areas. It’s often used as a surface for driveways or parking lots.
  3. 21AA Natural
    21AA Natural is a looser material that works for gravel roads or as a base layer underneath asphalt pavement.
  4. 22A Crushed Concrete
    22A Crushed Concrete is made up of smaller particles which create a smooth driving surface. This makes it excellent as a top layer for roads, driveways, and parking lots. It can also be used as a base layer underneath asphalt pavement.
  5. 21A Gravel
    21A Gravel is made up of small particles and makes a great base for patio and paver bases.
  6. 6A Crushed Concrete
    6A Crushed Concrete is a clean crushed concrete which is often used as a base for driveways or walkways. It can also be used in muddy areas.

What about washout?

After concrete is laid at a site, the trucks and other equipment have to be cleaned before the concrete hardens. The material that is “washed out” is called washout. This material contains toxic materials that are harmful for wildlife, environments, and humans. It must be cleaned and sorted thoroughly prior to use. After the water evaporates and the cleaning and sorting process is finished, the remaining aggregate pieces can be safely used as crushed concrete.

Crushed Concrete Driveway

Crushed Concrete driveways are a much more cost-effective driveway solution compared to gravel driveways, regular concrete driveways, or asphalt driveways. With benefits like the price, sustainability, and the fact that it can never crack and require a repair, crushed concrete is a great driveway option.

With its many benefits and uses, crushed concrete is a highly-practical and widely-available material that could be the solution to many of your construction or landscaping needs. Call the expert team at Superior Groundcover today to start your project.

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Crushed Concrete & Concrete Aggregate 101 - Superior Groundcover (2024)

FAQs

What are the disadvantages of crushed concrete? ›

Unstabilized, loose crushed concrete has all the downsides that loose gravel does. It spreads and thins easily, requiring you to add more and to constantly even out your driveway so it doesn't develop bare spots and ruts. Crushed concrete also creates dust rather easily, which can stick to your vehicles and dirty them.

Is crushed concrete better than gravel? ›

Crushed Concrete driveways are a much more cost-effective driveway solution compared to gravel driveways, regular concrete driveways, or asphalt driveways. With benefits like the price, sustainability, and the fact that it can never crack and require a repair, crushed concrete is a great driveway option.

Does crushed concrete need to be compacted? ›

After creating your crushed concrete driveway, you'll have to take measures to ensure it's safe and stable. Compacting the materials will accomplish this by making sure there are no large depressions or areas where loose materials could shift or be washed out.

Where can I use crushed concrete? ›

Crushed concrete can be used in landscaping projects for pathways, driveways and patios, as well as drainage ditches or pond edges. It can be made into blocks for foundations and retaining walls or even mixed with asphalt for use in paving projects.

Is crushed concrete bad for the environment? ›

Sustainability. The EPA's Sustainable Materials Management (SMM) program encourages construction and demolition (C&D) companies to prioritize recycling and reusing C&D materials instead of disposal. Producing crushed concrete is one of the most efficient and environmentally-friendly ways of handling waste concrete.

Is crushed concrete good for plants? ›

Filling the underneath of a garden bed to raise it a few inches can work wonders for the drainage of your plants. Also, the combination of the crushed concrete and mulch will provide warmer soil for quick germination in the springtime.

Does crushed concrete absorb water? ›

Even though the aggregate has a 5% absorption rate, the concrete will have a water-cement ratio of 0.40 to 0.45—made possible with the addition of water-reducing admixtures.

What is the cheapest gravel for driveways? ›

Pea gravel, crushed granite and steel slag are some of the cheapest gravel options for driveways. Each can cost as little as $24 per ton, but keep in mind that some options are more likely to compact more quickly into the ground, leading to more frequent top-offs.

Does crushed concrete drain well? ›

Creating a raised garden bed provides a lot of benefits. Some of these include improved drainage and warmer soil, both of which lead to faster growth for your garden when spring comes. To create a raised garden bed, lay crushed concrete in layers. This will form the perfect base.

What is another name for crushed concrete? ›

#57 Concrete, also known as recycled crushed concrete, is an eco-friendly material that is not only economical in price, but can also be used in a variety of landscaping projects.

Can you use crushed concrete as a base for a slab? ›

Crushed concrete is a very good substrate for a slab. The key is to not have chunks so large that air pockets are created. Maybe bring in a layer of sand to fill the voids and level things a bit. A water rinse will help bring air out and compact the material.

Can you use crushed concrete to make new concrete? ›

4. Returned concrete can be discharged at a location in the concrete plant for processing. The hardened discharged concrete can be subsequently crushed for reuse as base for pavements or fill for other construction. The separation of the crushed material can produce different products for use.

Can I use crushed concrete for a shed base? ›

For customers that would like a better look, as well as more support we use RCA (Recycled Concrete Aggregate) compacted with a machine to form a level crushed stone pad for the shed. This provides a solid and durable foundation for the shed. In addition this can help minimize animals from living under the shed.

What is cheaper, crushed concrete or not? ›

Crushed Concrete is Inexpensive

It's created by grinding up old concrete to replace the gravel found in new material. That means fewer resources need to be used to create it. As you can imagine, this makes it substantially cheaper than new concrete and many similar options.

Does crushed concrete make a good base? ›

Before you start any kind of landscaping project you need to start from the ground up. A great choice for a base layer is crushed concrete.

What is better for a driveway, crushed concrete or crushed asphalt? ›

Crushed asphalt still contains tar which makes it able to lay smoothly and is more cost-effective than concrete. Compared with other types of materials, such as gravel, crushed asphalt lasts longer and is also more durable.

Does crushed concrete make a good road base? ›

As with any foundation, a strong, sturdy base is the only way to start in order to construct something that will last. There are many options when it comes to materials to use as a road base, but one with many advantages is crushed concrete.

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