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Can You Pour A Concrete Slab Over Asphalt. If you bond new concrete to old any cracks in the existing slab will transfer up. So if you think the ground below is fine than use a 100mm 4 thick concrete slab with joints at no greater than 4m 13ft centres. Concrete is a great base material because it is stable and allows for excellent compaction of the asphalt above. The catch with that is that for it to sink at all really it means it had a poor base to begin with or no base.
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It is safe to pave asphalt over concrete. If you bond new concrete to old any cracks in the existing slab will transfer up. It is called an asphalt treated permeable leveling course. Click to see full answer. But this isnt necessarily the case with concrete. Concrete isnt for resurfacing.
An asphalt driveway offers a solid base for the concrete.
GIVEAWAY IS OVER In this video we show you how to pour a concrete slab on asphalt. Yes you can pour concrete over an asphalt driveway. Answer 1 of 6. Its a structure unto itself. Homeowners can benefit from this whitetopping technique to reduce labor costs and time when replacing worn asphalt. Chances are these slabs werent poured over an unstable base but rather frost heaving moved them.
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I have never seen concrete installed over asphalt but Im not an expert I just watch actors pretending to be experts on TVIf the asphalt good and solid I dont see why it could not be considered foundation but I think you would need to do a full thickness slab as if you were pouring it over a gravel foundation. We first begin by forming the 8 inch slab. To save time and money many states and municipalities use a road repair technique known as whitetopping the process of pouring concrete over asphalt rather than removing the existing asphalt. Concrete is a great base material because it is stable and allows for excellent compaction of the asphalt above. 4 thk over the asphalt with possibly insulation underneath.
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Then we drilled into the asph. My driveway was cracked all over so I opted for asphalt over concrete to make it all look uniform and good. Its a structure unto itself. Use a piece of treated 1 x4 bewteen the concrete and asphalt leave it there. Or reinforce the slab with steel mesh.
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I would not go any less than 35 inches and just use wire mesh in your concrete. The answer to the extremely common question can I lay new asphalt over old concrete is yes you can but we discourage it. Your asphalt area is probably comapcted pretty darn good. Can You Pour Concrete Over Asphalt. Asphalt needs to be poured over a compacted surface in order for it to be a durable long-lasting surface.
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So you need to likely pour at least a 4-5 slab for it to work as new garage flooring. It is safe to pave asphalt over concrete. My driveway was cracked all over so I opted for asphalt over concrete to make it all look uniform and good. It is called an asphalt treated permeable leveling course. Asphalt needs to be poured over a compacted surface in order for it to be a durable long-lasting surface.
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Provided the asphalt is in decent condition there is no reason you cant pour concrete over the top. Topping an asphalt driveway with concrete is called whitetopping Its a common and cost-effective way to. July 13 2018. GIVEAWAY IS OVER In this video we show you how to pour a concrete slab on asphalt. When the existing concrete is of adequate quality you could pour a new thin slab over the old concrete provided that the new layer contains wire mesh or fiber reinforcement.
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So that means your current flooring would have had to sink 4-5 already. If you bond new concrete to old any cracks in the existing slab will transfer up. While asphalt provides a poor bond with concrete it does serve as an excellent base as it is solid stable and very strong. July 13 2018. You will end up cracking the concrete.
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Note that currently there is about 4 of rise from the asphalt to the top of the concrete door apron. An asphalt driveway offers a solid base for the concrete. I would not go any less than 35 inches and just use wire mesh in your concrete. The macadam will have some movement and expansion with ground moisture and heat. A concrete pavement that moves will damage any asphalt overlay over time.
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Yes you can pour concrete over asphalt. Yes you can pour concrete over asphalt. While it is safe to pave asphalt over concrete there are several reasons why we do not recommend this method. A concrete pavement that moves will damage any asphalt overlay over time. Homeowners can benefit from this whitetopping technique to reduce labor costs and time when replacing worn asphalt.
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A concrete pavement that moves will damage any asphalt overlay over time. Asphalt needs to be poured over a compacted surface in order for it to be a durable long-lasting surface. If you bond new concrete to old any cracks in the existing slab will transfer up. CAN you We learn pretty early on that can is a tricky word. Use a piece of treated 1 x4 bewteen the concrete and asphalt leave it there.
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Or reinforce the slab with steel mesh. If you bond new concrete to old any cracks in the existing slab will transfer up. The catch with that is that for it to sink at all really it means it had a poor base to begin with or no base. Its a structure unto itself. There are situations where we commonly put concrete over asphalt when building roadway pavements.
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Concrete is a great base material because it is stable and allows for excellent compaction of the asphalt above. So you need to likely pour at least a 4-5 slab for it to work as new garage flooring. If the new slab is thick enough you could even include rebar. Chances are these slabs werent poured over an unstable base but rather frost heaving moved them. Then we drilled into the asph.
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In fact many miles of concrete roads are paved over with asphalt every year. When the existing concrete is of adequate quality you could pour a new thin slab over the old concrete provided that the new layer contains wire mesh or fiber reinforcement. We first begin by forming the 8 inch slab. Yes you can pour concrete over asphalt. Concrete is a great base material because it is stable and allows for excellent compaction of the asphalt above.
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Of course you can pour concrete directly over it. Your asphalt area is probably comapcted pretty darn good. You will end up cracking the concrete. Or reinforce the slab with steel mesh. It is called an asphalt treated permeable leveling course.
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Chances are these slabs werent poured over an unstable base but rather frost heaving moved them. There are situations where we commonly put concrete over asphalt when building roadway pavements. Thats just not a sound idea. You can put concrete over asphalt but make sure that the asphalt is at least 2 to 4 thick. Then we drilled into the asph.
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Can I simply pour a concrete slab min. If you think the ground below is poor than consider either digging out the asphalt and soil below and replacing with some well compacted stone 200mm 8 and then the slab. Yes you can pour concrete over an asphalt driveway. However the asphalt needs preparation to ensure proper bonding and decrease the risk of concrete cracking. My driveway was cracked all over so I opted for asphalt over concrete to make it all look uniform and good.
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