Can I pour concrete over gravel?

Cement mix might work in some cases over an existing gravel driveway. Laying a concrete driveway over an existing gravel one is possible, but it is not generally recommended. The kind of gravel that is intended to go under cement is typically a smaller grade than what is used for gravel driveways.
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What happens if you pour concrete over gravel?

Adding crushed stone under your concrete slab will provide a level surface for your foundation. Simply pouring concrete onto the ground will expose it to elemental erosion that will cause cracking and sinking. Similarly, if there are roots or plants under your slab, they may rot and cause unevenness.
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Should I pour concrete over gravel?

You do need gravel under a concrete slab, footing, or patio. Gravel provides a solid foundation for your concrete as it can be compacted. It also improves drainage, preventing water from pooling beneath the concrete.
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Can you cover gravel with concrete?

Generally, you should not put gravel over concrete, especially in high-traffic areas. Gravel over concrete may look nice, but it is not a lasting and safe solution. Over time, the gravel will shift due to walking or driving over it, leaving bald spots exposed and creating tripping hazards.
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Can you pour concrete over rocks?

Big rocks are not a problem as long as there is uniform concrete coverage and adequate rebar for temperature fluctuations. If the big rocks protrude up above grade and if you have a few in a row, it will weaken the slab. We like things uniform, including the grade, thickness of the concrete, etc.
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brushing CHEAP concrete onto a gravel driveway (adding strength and resilience)



What kind of gravel goes under concrete?

The base in concrete construction is usually a form of crushed stone. Most concrete contractors want a mix of coarse and fine aggregate to create a compactable base that is going to be safe for settlement and drainage.
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Can I lay concrete over pea gravel?

Combining pea gravel with concrete is an effect most frequently used for driveways, patios and other outdoor locations. Mixing the pea gravel into the concrete is not difficult, but it does require a little work.
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How do I make my gravel driveway more solid?

How to Stabilize a Loose Gravel Driveway
  1. Remove organic matter from the driveway. Tree limbs, leaves and mud can end up on the driveway. ...
  2. Fix any drainage issues. Look carefully at your driveway after a rain. ...
  3. Fill potholes and other low spots. Most gravel driveways develop low spots over time. ...
  4. Compact the gravel.
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Can you put cement over pea gravel?

Thankfully, there are a number of options for how to keep pea gravel from washing away. The two most effective methods for stabilizing pea gravel are cement and permeable pavers. If you're stabilizing pea gravel with cement, it will hold for a while until it's eventually damaged by traffic and water exposure.
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Should you compact gravel before pouring concrete?

Gravel allows water to drain into the ground below. When packed tightly, however, the gravel doesn't shift beneath the concrete. A hand tamper is sufficient for packing gravel, but a plate compactor makes the job much easier, especially when preparing a large area such as a patio.
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Can you pour concrete over aggregate?

If done properly, new concrete can often be poured right over an existing slab. For this to be feasible, the contractor needs to pour at least 2 inches thick, use smaller aggregate, and incorporate reinforcement such as welded wire mesh or fiber mixed into the concrete.
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How do you break up compacted gravel?

Make several swings to loosen the gravel. Scoop up gravel with a square-tipped shovel and transfer it into a wheelbarrow to remove it from the driveway. Push the shovel as deep into the gravel as possible by stepping on it with your foot; this helps dislodge more gravel for the next scoop.
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How do you layer a gravel driveway?

For a simple DIY gravel driveway installation, follow these 8 steps.
  1. Mark Out the Path of the Driveway. ...
  2. Clear Grass and Topsoil. ...
  3. Calculate Amount of Gravel Needed. ...
  4. Schedule Gravel Delivery. ...
  5. Level the Path of the Driveway. ...
  6. Spread and Compact the Base Layer. ...
  7. Spread Middle Layer of Gravel. ...
  8. Spread and Smooth Top Layer.
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Can you pour a driveway with bagged concrete?

Fortunately, whether you plan to make a patio slab or a driveway, working in small areas divided by concrete forms and using bagged concrete mix can make the job easier for a DIYer.
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What can you cover pea gravel with?

Stone pavers, metal edging, or treated lumber are all great options. Without this, your pea gravel will end up spreading around the yard and causing headaches (and maybe foot-aches).
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Can I pour concrete directly on dirt?

Long story short, yes you can pour concrete over dirt.
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What is the best sub base for concrete?

The best sub-base for a concrete slab is gravel. The soil has to be prepped first before the gravel can be laid down; pouring concrete directly onto rock is not considered a best practice. You can use different kinds of gravel for the subbase as long as it is clean and uniform in shape and size.
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Do you need sand under concrete?

Just as every home needs a good foundation, your property's concrete slab needs a good subbase to function properly. Contractors sometimes use sand as a subbase when pouring concrete, but it all depends on the slab's function as well as your region's climate.
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How do you prepare the ground before pouring concrete mixture?

  1. Dig the ground down to the proper depth. ...
  2. Smooth out the ground with the flat side of a rake so that you have a level surface. ...
  3. Tamp the ground with a hand tamper or mechanical tamper. ...
  4. Pour 2 inches of small, rounded gravel for additional drainage needs.
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How do I turn my gravel driveway into asphalt?

An inexpensive method for paving a driveway consists of gravel or crushed rock over a graded, packed dirt bed. If you already have a gravel driveway and want to pave over it, the least expensive option is adding a hot-asphalt seal-coat layer over the surface of the gravel, followed by a layer of crushed rock.
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