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Pour A Concrete Slab Over A Concrete Slab, 3 Porch

Pour A Concrete Slab Over A Concrete Slab, 3 Porch

How to Pour Concrete Over-Existing Concrete Slab? - The ...

2019-10-27  A well-poured concrete slab with a deep, sturdy foundation can last for 30 to 40 years. Pouring concrete over old concrete instead of directly over a new gravel foundation limits your ability to maximize the slab's lifespan. The condition of the existing slab is the primary factor that determines how long the new concrete will last.

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The Disadvantages of Pouring Concrete Over Existing ...

The Disadvantages of Pouring Concrete Over Existing Concrete Slab. Hunker may earn compensation through affiliate links in this story. Damaged concrete is a poor base for a new slab. Removing an existing concrete slab is a lengthy, labor-intensive process. One alternative to removing old concrete is to pour a new layer over the existing slab.

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Can You Pour Concrete Over Existing Concrete - The

how to pour concrete over existing concrete. Step 1. I started this project by pressure washing the old concrete to remove all the mold, dirt, and loose concrete. Step 2. I let it dry for 24 hours, then I applied a concrete bonding agent by brushing on a light coating. My favorite bonding agent for this is Weld-Crete.

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Pouring concrete over concrete - Everything About Concrete

Jul 24, 2012 Rating: Concrete Over Concrete by: Engineer If you are laying (Pouring) concrete over existing concrete there needs to be a bond. When i say bond the concrete you are lying on top off needs to be a rough finish like scabbled. You could drill holes into the existing concrete surface and insert steel pins and then the mesh on top.

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Pouring a Structural Slab Over Living Space ProTradeCraft

2016-2-24  Pouring a Structural Slab Over Living Space. ... The nested ribs of the decking add integral beams to the concrete, strengthening the slab. The slab needs to slope 1/8 inch per foot, so a sloped ledge was designed into the exterior foundation walls for the steel decking to rest on. ...

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I have to pour a raised concrete porch over an open ...

2012-12-31  I have to pour a raised concrete porch over an open portion of basement. The perimeter of the porch will have a 12" block foundation. The porch dimensions are 16' across by 9' out off the wall. I was thinking to use I beams with metal decking and then pour a 5" slab on top of that. What size I

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How to Add Concrete to Existing Concrete (with Pictures ...

2020-10-8  Apply the new concrete over the primer. Pour concrete onto the existing slab until it is around where you want the final level to be. Make sure you have enough concrete to fill the entire area to the depth you desire. Add all of the concrete

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Concrete Porch Floor Construction Made Easy

Approximately four to six inches of concrete is then poured over the sheathing. A concrete pumping truck was used to help pour the concrete due to both the height of the porch and the distance from the street. The pumping truck operator uses a remote control to guide the concrete hose which has a reach of over 100 feet. Concrete

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Can You Pour Concrete Over Existing Concrete - The

how to pour concrete over existing concrete. Step 1. I started this project by pressure washing the old concrete to remove all the mold, dirt, and loose concrete. Step 2. I let it dry for 24 hours, then I applied a concrete bonding agent by brushing on a light coating. My favorite bonding agent for this is Weld-Crete.

get price

Pouring a Structural Slab Over Living Space ProTradeCraft

2016-2-24  Pouring a Structural Slab Over Living Space. ... The nested ribs of the decking add integral beams to the concrete, strengthening the slab. The slab needs to slope 1/8 inch per foot, so a sloped ledge was designed into the exterior foundation walls for the steel decking to rest on. ...

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Pouring Finishing Concrete Slabs QUIKRETE: Cement

When working with cement-based products, always wear eye protection and waterproof gloves. Step 1 Prior to placing concrete forms: Construct the form with 2x4 or 2x6 lumber and secure in place by wood stakes and deck screws. Excavate the slab area to a depth of about 7 inches, allowing 3 inches for a gravel base and 4 inches for concrete

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Porch Foundations - More Important Than You Think

Front Porch Slab Foundations. Concrete front porch foundations usually consist of concrete poured at grade over a base material like stone or gravel. Porch foundations from slabs don't have to be just at ground level. Concrete slabs can be poured at any

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How to Add Concrete to Existing Concrete (with Pictures ...

2020-10-8  Apply the new concrete over the primer. Pour concrete onto the existing slab until it is around where you want the final level to be. Make sure you have enough concrete to fill the entire area to the depth you desire. Add all of the concrete

get price

Concrete Porch Floor Construction Made Easy

Approximately four to six inches of concrete is then poured over the sheathing. A concrete pumping truck was used to help pour the concrete due to both the height of the porch and the distance from the street. The pumping truck operator uses a remote control to guide the concrete hose which has a reach of over 100 feet. Concrete

get price

How to Pour a Leveling Layer of Concrete Over the Existing ...

You can level an existing concrete floor with a leveling layer of new concrete, but you must prepare the old concrete floor first. Neglecting to prepare the old surface will prevent the new concrete from adhering correctly, resulting in a weak bond between the two

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Porch Settling Repair - Do It Right Not Over

You also create a mat of reinforcing steel within the slab with the steel rods parallel with the house 2 feet on center as they march towards the low brick wall under the porch-support posts. The concrete slab should be no less than 5 inches thick and be no less

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How to Build a Brick and Concrete Porch Hunker

The most common type of porch in residential areas is a brick-and-concrete porch. Most homeowners use a simple, circular design constructed out of bricks, with an underlying layer of concrete preventing erosion. You need to know how to build a basic brick and concrete porch before you begin to play around with special layouts and techniques.

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Floating Slab Construction - Applications and Advantages ...

Floating slab is a concrete slab laid over ground without any anchoring as if it simply floats. Applications and advantages of floating slabs are discussed. Join. Join TheConstructor to ask questions, answer questions, write articles, and connect with other people. When you join you get additional benefits.

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Porch Foundations - More Important Than You Think

Front Porch Slab Foundations. Concrete front porch foundations usually consist of concrete poured at grade over a base material like stone or gravel. Porch foundations from slabs don't have to be just at ground level. Concrete slabs can be poured at any

get price

Concrete Porch Floor Construction Made Easy

Approximately four to six inches of concrete is then poured over the sheathing. A concrete pumping truck was used to help pour the concrete due to both the height of the porch and the distance from the street. The pumping truck operator uses a remote control to guide the concrete hose which has a reach of over 100 feet. Concrete

get price

how are raised porch slabs poured? - JLC-Online Forums

2010-8-12  Then the slab section is poured on top of this stuff. Or is there an actual wood floor under the slab that just sits there or maybe eventually rots away? Anyway, my thought was to take the broken portion off, epoxy some rebar to the good slab, build some forms and pour concrete. But if it is all hollow underneath there then it is a different ...

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How to Pour a Leveling Layer of Concrete Over the Existing ...

You can level an existing concrete floor with a leveling layer of new concrete, but you must prepare the old concrete floor first. Neglecting to prepare the old surface will prevent the new concrete from adhering correctly, resulting in a weak bond between the two

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How to Build a Deck Over a Concrete Patio (DIY)

A concrete slab provides a firm, stable base for pavers. Cover the patio with a thin layer of sand, lay pavers over it, and the results look like a standard paver patio. It's a fairly simple project and the cost is reasonable ($3 to $6 per sq. ft.), but expect a weekend or two

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Porch Settling Repair - Do It Right Not Over

You also create a mat of reinforcing steel within the slab with the steel rods parallel with the house 2 feet on center as they march towards the low brick wall under the porch-support posts. The concrete slab should be no less than 5 inches thick and be no less

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Pouring a concrete riser on a pre-existing concrete floor ...

2010-9-7  Cut them about 1/4" -3/8" deep. If you can, 24"x24" squares are good. Your slab will crack, but it should be fine and will crack in these joints that you cut. Be sure to give the concrete plenty of time to cure (1 week min) before you put a "moving" weight on it like a washer/dryer.

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How to Pour a Slab on Clay Soil Home Guides SF Gate

2018-12-14  How to Pour a Slab on Clay Soil. Slabs made of concrete can be large or small, and have a variety of uses around the home. Unfortunately, if you have clay-heavy soil, then you may run into ...

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Floating Slab Construction - Applications and Advantages ...

Floating slab is a concrete slab laid over ground without any anchoring as if it simply floats. Applications and advantages of floating slabs are discussed. Join. Join TheConstructor to ask questions, answer questions, write articles, and connect with other people. When you join you get additional benefits.

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How can I pour a concrete patio under my existing deck ...

2020-6-8  Support either side of each post, cut it off, insert a steel stub base or pour a new concrete base to a height slightly above the planned slab, pour the new slab. Or, just make sure the "expansion joint" around each post is actually around each footing, boxing out the whole area, and fill with pea stone or marble chips after pouring the slab.

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