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New Concrete Slab Over Old. If youre concrete has large cracks it might still be moving due to freeze and thaw conditions or settling. A well-poured concrete slab with a deep sturdy foundation can last for 30 to 40 years. The key to success was. The architect wants me to build a level floor using wood sleepers with foam insulation in between then pour a minimum 1 12-inch-thick radiant slab between the sleepers.
Stone Paver Patio Over Existing Concrete Slab Patio Stones Patio Design Brick Patios From pinterest.com
Neglecting to prepare the old surface will prevent the new concrete from adhering correctly resulting in a weak bond between the two layers. I would not pour a new slab over an old busted up slab. Although it is not the best option adding a new concrete coat on top of the old concrete remains the next best option. I am renovating a barn where the existing concrete floor slopes approximately 6 inches in 30 feet. The literature that I found regarding reinforcing of slab on grades states that the amount of reinforcing is directly proportional to the friction between the concrete and the soil. If done properly new concrete can often be poured right over an existing slab.
Can you pour self leveling concrete over concrete.
The most advisable way to repair your concrete is to demolish the existing one and redo the slab. The preparation of the surface usually involves roughening the surface and removal of all dirt oil grease loosened or unbonded portions of the existing concrete. The literature that I found regarding reinforcing of slab on grades states that the amount of reinforcing is directly proportional to the friction between the concrete and the soil. For adequate bonding it is very important to prepare the surface of the substrate adequately. There are cases when pouring new concrete over old just isnt a viable solution. I started this project by pressure washing the old concrete to remove all the mold dirt and loose concrete.
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When wouldnt I want to pour new concrete over old concrete. The most advisable way to repair your concrete is to demolish the existing one and redo the slab. A well-poured concrete slab with a deep sturdy foundation can last for 30 to 40 years. Vapor Barrier and Thermal Break. Overlays may include polymers portland cement concrete or epoxies.
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Reduce heat loss by 56. The condition of the existing slab is the primary factor that determines how long the new concrete will last. Im hoping to use the shed as a bit of a workshopstorage space for some light duty woodworking. Yep its a concrete slab. You can put new concrete over old concrete.
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If youre concrete has large cracks it might still be moving due to freeze and thaw conditions or settling. If youre concrete has large cracks it might still be moving due to freeze and thaw conditions or settling. Although it is not the best option adding a new concrete coat on top of the old concrete remains the next best option. It is a difficult process but you are basically stitching the old slab together and also to the new slab. You can level an existing concrete floor with a leveling layer of new concrete but you must prepare the old concrete floor first.
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However unresolved issues with your old concrete such as cracks or frost heaves will carry over to your new concrete if not taken care of. For adequate bonding it is very important to prepare the surface of the substrate adequately. The existing slab on grade slopes to drains and owner wants to level the floor by pouring an additional 5 concrete slab on top of the existing slab on grade. The literature that I found regarding reinforcing of slab on grades states that the amount of reinforcing is directly proportional to the friction between the concrete and the soil. When wouldnt I want to pour new concrete over old concrete.
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The key to success was. Ad Free Estimates from Reviewed Foundation Contractors in Your Area. But this will require that you dig deeper into your pocket and spend a lot more time on the project. Yes you may pour a concrete pad overlay over an existing slab. There is probably a good reason the old slab is busted up and the new slab may suffer the same fate.
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That said I have done something similar. 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. The existing slab on grade slopes to drains and owner wants to level the floor by pouring an additional 5 concrete slab on top of the existing slab on grade. I formed the perimeter with 2x4s and set them to. You can level an existing concrete floor with a leveling layer of new concrete but you must prepare the old concrete floor first.
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In addition you must pour it at least 2 inches thick. There is probably a good reason the old slab is busted up and the new slab may suffer the same fate. If youre concrete has large cracks it might still be moving due to freeze and thaw conditions or settling. Concreteoverconcrete pourconcreteoverexistingconcrete mikedayconcreteIn this video I will show you how to pour a new concrete patio slab over an old exist. However unresolved issues with your old concrete such as cracks or frost heaves will carry over to your new concrete if not taken care of.
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That said I have done something similar. Pouring concrete over old concrete instead of directly over a new gravel foundation limits your ability to maximize the slabs lifespan. For adequate bonding it is very important to prepare the surface of the substrate adequately. The preparation of the surface usually involves roughening the surface and removal of all dirt oil grease loosened or unbonded portions of the existing concrete. You need to consider the added height and weight of the overlay on the existing structure.
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You can put new concrete over old concrete. In addition you must pour it at least 2 inches thick. For adequate bonding it is very important to prepare the surface of the substrate adequately. The literature that I found regarding reinforcing of slab on grades states that the amount of reinforcing is directly proportional to the friction between the concrete and the soil. I would not pour a new slab over an old busted up slab.
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When we built my house 24 years ago there was a lot of rock left over from the rock veneer we installed. When we built my house 24 years ago there was a lot of rock left over from the rock veneer we installed. Reduce heat loss by 56. The existing seems to be 4inches and I was hoping to have about the same thickness for the new one. Concreteoverconcrete pourconcreteoverexistingconcrete mikedayconcreteIn this video I will show you how to pour a new concrete patio slab over an old exist.
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When we built my house 24 years ago there was a lot of rock left over from the rock veneer we installed. I let it dry for 24 hours then I applied a concrete bonding agent by brushing on a light coating. The most advisable way to repair your concrete is to demolish the existing one and redo the slab. Neglecting to prepare the old surface will prevent the new concrete from adhering correctly resulting in a weak bond between the two layers. You can level an existing concrete floor with a leveling layer of new concrete but you must prepare the old concrete floor first.
Source: pinterest.com
When wouldnt I want to pour new concrete over old concrete. Reduce heat loss by 56. I let it dry for 24 hours then I applied a concrete bonding agent by brushing on a light coating. Im hoping to use the shed as a bit of a workshopstorage space for some light duty woodworking. I would not pour a new slab over an old busted up slab.
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Yep its a concrete slab. Neglecting to prepare the old surface will prevent the new concrete from adhering correctly resulting in a weak bond between the two layers. However most contractor will simply come out and place a rebar mesh on small pedestals above the existing floor and then pour enough concrete to. 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. I would not pour a new slab over an old busted up slab.
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The key to success was. There is probably a good reason the old slab is busted up and the new slab may suffer the same fate. You can put new concrete over old concrete. A well-poured concrete slab with a deep sturdy foundation can last for 30 to 40 years. Ad Free Estimates from Reviewed Foundation Contractors in Your Area.
Source: pinterest.com
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. In that case a tear out and replace with new is a better solution. The architect wants me to build a level floor using wood sleepers with foam insulation in between then pour a minimum 1 12-inch-thick radiant slab between the sleepers. There are cases when pouring new concrete over old just isnt a viable solution. I would not pour a new slab over an old busted up slab.
Source: pinterest.com
Yes you may pour a concrete pad overlay over an existing slab. There is probably a good reason the old slab is busted up and the new slab may suffer the same fate. The architect wants me to build a level floor using wood sleepers with foam insulation in between then pour a minimum 1 12-inch-thick radiant slab between the sleepers. Im hoping to use the shed as a bit of a workshopstorage space for some light duty woodworking. 1 cleaning the existing surface to ensure good adhesion 2 installing adequate steel reinforcement to the slab 3 wetting the existing concrete surface.
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If youre concrete has large cracks it might still be moving due to freeze and thaw conditions or settling. Im hoping to use the shed as a bit of a workshopstorage space for some light duty woodworking. Ad Under Concrete or Wood Floors. A well-poured concrete slab with a deep sturdy foundation can last for 30 to 40 years. Yes you may pour a concrete pad overlay over an existing slab.
Source: pinterest.com
Pouring concrete over old concrete instead of directly over a new gravel foundation limits your ability to maximize the slabs lifespan. A well-poured concrete slab with a deep sturdy foundation can last for 30 to 40 years. The key to success was. Concreteoverconcrete pourconcreteoverexistingconcrete mikedayconcreteIn this video I will show you how to pour a new concrete patio slab over an old exist. The existing seems to be 4inches and I was hoping to have about the same thickness for the new one.
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