Best answer

Why Does Concrete Sink/Settle? Slab settlement is the movement a concrete slab experiences when the soil below can longer support the weight of it. You experience cracks and movement when most likely, the soil changed underneath the concrete.

Answered by: mihai Date created: Jun 24, 2022

How do I keep my concrete slab from sinking?

Asked By: Harshal Patil Date created: Jun 21, 2022

How can I prevent my concrete from sinking?Seal all open cracks and joints with a polyurethane or silicone caulk. ... Make sure downspouts are discharging at least five feet away from any concrete slab – the farther the better.More items...•

Answered By: bkucera Date created: Jun 24, 2022

Why is my concrete green?

Asked By: Eric Guan Date created: Jun 17, 2022

What Causes Greening? The blue-green color is attributed to a complex reaction of sulfide sulphur in slag cement with other compounds in portland cement. The degree and extent of the coloration depends on the rate of oxidation, the percentage of slag used, curing conditions and the porosity of the concrete surfaces.

Answered By: Mikołaj Głodziak Date created: Jun 17, 2022

Why is my fresh concrete cracking?

Asked By: adrianbanks Date created: Jun 20, 2022

There are several reasons why concrete cracks, with the most common being drying shrinkage. Concrete, when placed in the plastic state, is at its largest volume. As the concrete sets and hardens, it begins to shrink. On average, concrete shrinks 1/8 inch in twenty feet.

Answered By: Luuk Date created: Jun 23, 2022

Will a dumpster ruin my concrete driveway?

Asked By: Jonathan Date created: Jun 25, 2022

It is quite rare for a dumpster and its weighty debris to cause any damage to a concrete, flat surface. You may still place a dumpster on an asphalt driveway, but the issue here is that the asphalt driveway must be strong and dry enough to avoid impressions and surface damage.

Answered By: Martin Geisler Date created: Jun 27, 2022

Should I seal my concrete driveway after pressure washing?

Asked By: Pablo Santa Cruz Date created: Jun 22, 2022

One way to keep your concrete driveway, walkway or walls looking good is to wash them and seal them every 2 to 3 years. ... Sealer also helps prevent stains from setting in on the concrete. Sealing concrete after pressure washing is similar to painting walls in your house.

Answered By: Ben Date created: Jun 24, 2022

Why is my new pool plaster rough?

Asked By: StaxMan Date created: Jun 12, 2022

Bad pool chemistry such as a high pH and/or calcium hardness among others are seen on the pool plaster surface soon within days or weeks. ... Remember cement is the base of ALL POOL PLASTERS. Salt: Salt itself from a saltwater pool has issues of attacking cement in plaster over time causing a rough finish.

Answered By: justin Date created: Jun 15, 2022

Why is my concrete turning white?

Asked By: Rohan Taneja Date created: Jun 16, 2022

Why is my concrete turning white? Efflorescence is a white salty residue caused when too much moisture is moving through the concrete. As the concrete dries and its moisture rises upwards through the slab, it brings salts within the concrete to the surface as well.

Answered By: Steven G Date created: Jun 18, 2022

Why is my concrete slab wet?

Asked By: D_Pain Date created: Jun 25, 2022

There are a couple of reasons why your garage floor may be getting wet. The most common is condensation — AKA sweating garage floor. When relatively warm, moist air comes in contact with a very cool concrete slab, the cold temperature of the concrete will cause the air that comes in contact with it to cool.

Answered By: David T. Date created: Jun 25, 2022

Why is my concrete still soft?

Asked By: James Raitsev Date created: Jun 12, 2022

There are a few factors which lead toward soft concrete. Excess water is the biggest culprit but we also have to consider the following; poor or insufficient curing, too little cement, carbonation, incorrect proportion of trace ingredients such as pozzolans or shrinkage additives.

Answered By: Matt Hamilton Date created: Jun 12, 2022

Why is my new cement cracking?

Asked By: juunas Date created: Jun 22, 2022

There are several reasons why concrete cracks, with the most common being drying shrinkage. Concrete, when placed in the plastic state, is at its largest volume. As the concrete sets and hardens, it begins to shrink. On average, concrete shrinks 1/8 inch in twenty feet.

Answered By: Sudhir Bastakoti Date created: Jun 25, 2022

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Can I pour my own cement driveway?

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Can I resurface my concrete driveway?

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Do I need to reseal my concrete driveway?

Sealing the driveway yearly can lead to unsightly hairline cracks and peeling. And concrete driveways should be sealed every four or five years to protect them from water penetration and to prolong their life. ... Materials to fill minor cracks in concrete come in liquids that sell for a few dollars per gallon.

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How can I make my old concrete driveway look better?

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Why is my cement cracking?

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Why is my concrete hot?

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Why is my Portland cement cracking?

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Why do they put concrete in graves?

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Why is my concrete patio turning green?

Green algae will begin to grow on cement or concrete when the surface stays constantly damp. Many homes in humid climates are constantly battling algae and fungus growth. ... If left untreated, the algae will permanently discolor the cement or concrete.

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Why is my concrete sealer blotchy?

The culprits of blotchy concrete after sealing The sealer was applied poorly. Not enough sealer was applied. The concrete itself had varying absorption rates.

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Why does my concrete slab sweat?

Why Floors Sweat When warm humid air from outside comes into contact with the cold concrete the air rapidly cools and condenses on the surface causing the wetness. ... Other causes for sweating floors is lack of moisture barriers beneath the slab hence the movement of moisture from underneath to the surface.

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When should I resurface my concrete driveway?

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Why is my concrete crumbling?

Water. ... If too much water is introduced to the mixture, the cement and sand cannot bond with each other and will instead fall apart. As the concrete starts to dry, this results in a crumbling area where the particles aren't sticking together.

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How can I brighten my concrete driveway?

Chlorine Bleach This common household product is not only good in the laundry, but will brighten up and clean your concrete. Mix a solution of 1 part chlorine bleach to 1 part water. Put the mixture into a garden sprayer and spray it onto the driveway. Let it sit for 10 minutes, then scrub with a stiff scrub brush.

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How do I level my concrete sinking?

You have three options: coat the sunken section with a sand-and-cement mixture to make the surface higher, raise the sunken section using a process called mudjacking, or raise the sunken section using expanding polyurethane foam.

Patching fixes the safety issue without costing much, but the patch is sure to show..

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Can I pour concrete on top of gravel?

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Is it necessary to seal concrete driveway?

Whether your driveway is stamped or exposed concrete, sealing after the concrete has cured, and every few years after, is recommended as part of the maintenance routine. A sealed concrete driveway will have a rich color and glossy sheen if desired. ... A sealer will help to keep water from sinking into the driveway.

Dharman

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Should I pressure wash my concrete driveway?

Pressure washing too frequently will cause your concrete surfaces to wear down faster. We recommend pressure washing your concrete driveway or walkways annually. Doing so more often will decrease the longevity of the concrete.

davidkonrad

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Should I seal concrete joints?

Stopping water from flowing under your concrete is probably the most important thing you can do to keep your driveway from sinking and becoming out of level. Caulking the joints and cracks is the best way to stop this from happening. Even expansion joints in your concrete driveway should be caulked.

Mark

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Is my driveway concrete or cement?

So when you refer to the finished product, “concrete” is the proper term, though people often say “cement” to mean the same thing. Different types of cement mixes are used to form different types of concrete driveways, which can be used in different construction applications.

bhaginath

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Can my concrete driveway be resurfaced?

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How much weight can my concrete driveway hold?

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Why is my concrete garage floor wet?

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Should I pave or concrete my driveway?

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Why has my cement not set?

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Can I paint my concrete driveway?

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Can a crumbling concrete driveway be repaired?

As long as the rest of your driveway is sound (no heaving, sinking, or crumbling), you can replace those tiny cracks with a smooth concrete surface by applying a high-quality resurfacing product, such as Quikrete's Concrete Resurfacer..

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Can I concrete over my front garden?

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Why is my concrete 2 different colors?

Calcium chloride in concrete is a primary cause of concrete discoloration. ... The resulting low water-cement ratio affects the hydration of the cement ferrites, which contributes to a darker color. Concrete surfaces that are troweled too early will increase the water-cement ratio at the surface and lighten the color.

murgatroid99

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Can you put cement 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.

...

However, if the gravel in your driveway is small enough, it is possible to create a cement driveway over the existing one..

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What PSI should my concrete driveway be?

3000 psi to 4000 psiThe typical concrete strength used for a driveway is in the 3000 psi to 4000 psi range, although temperate areas of the country may use lower strengths. Contractors, when ordering ready mixed concrete, should advise the producer of the intended use for the concrete.

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What type of concrete should I use for my driveway?

Concrete Characteristics To withstand the weight of vehicle traffic, choose a concrete with a strength of 4,000 pounds per square inch for your driveway. In areas with cold winters, concrete mix should have a 6 percent air-entrainment value.

Mike M.

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Why do they put coffins in concrete boxes?

A burial vault (also known as a burial liner, grave vault, and grave liner) is a container, formerly made of wood or brick but more often today made of metal or concrete, that encloses a coffin to help prevent a grave from sinking.

Megan Darcy

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Why are my cement pots cracking?

Shrinkage is a main cause of cracking. As concrete hardens and dries it shrinks. This is due to the evaporation of excess mixing water. The wetter or soupier the concrete mix, the greater the shrinkage will be.

Daniel Möller

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Can you pour concrete on 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. ... However, if the gravel in your driveway is small enough, it is possible to create a cement driveway over the existing one.

Henrik Andersson

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Should I put a sealer on my new concrete driveway?

Experts recommend using a penetrating sealer outdoors because it sinks down into the concrete and has a more natural, matte finish. It is very important that sealers used on exterior concrete allow both air and moisture to pass through. A driveway sealer should be applied after the freshly poured concrete has cured.

Daniel Mann

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Should I resurface my concrete driveway?

Enhances your driveway's appearance: one of the best values of concrete driveway resurfacing is it improves your driveway's appearance. The new layer gives your driveway a fresh look after years of fading and cracking. Extends its lifespan: if you care for your driveway correctly, it should last for up to thirty years.

gdbj

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Should I seal my concrete driveway every year?

Sealing the driveway yearly can lead to unsightly hairline cracks and peeling. And concrete driveways should be sealed every four or five years to protect them from water penetration and to prolong their life. ... This is a good time of year for driveway work.

Raj Yadav

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Should you seal concrete after power washing?

Yes, the driveway definately will need to be sealed. I found out the hard way after pressure washing my drive and not sealing it. The sealer closes up holes in the driveway and prevents water from freezing and cracking in the driveway. Highly recommended.

Martin Costello

Guest

Why is my colored concrete turning white?

Why is my concrete turning white.

Efflorescence is a white salty residue caused when too much moisture is moving through the concrete.

As the concrete dries and its moisture rises upwards through the slab, it brings salts within the concrete to the surface as well..

Wim Deblauwe

Guest

Why is my concrete Chalky?

Efflorescence is a chalky white salt residue that can occur with any product containing cement. As moisture migrates up to the surface of the concrete, it carries along with it calcium salts from within the concrete. When the salts reach the surface, they react with CO2 in the air and form insoluble calcium carbonate.

riccardo.cardin

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Why is my concrete patio sinking?

One cause of a sinking patio is weight. The soil under your home is strong, but concrete is heavy. Over time, this weight will cause the concrete patio to naturally sink a bit. ... In this case, even if the patio is replaced, the problem will continue until you've addressed the drainage issue.

Abdul Aziz Barkat

Guest

Why is my concrete sinking?

Soil shrinkage and compaction Soil shrinkage, compaction and settling all have an impact on sinking concrete.

If the soil below the slab isn't compact, the concrete can easily begin to sink as the soil beneath it solidifies and hardens.

If the soil is too wet or too dry, this can also cause concrete to sink..

pvpkiran

Guest

Why is my new concrete blotchy?

The use of too much or not enough water. The use of calcium chloride. Improper concrete laying techniques. Outside temperatures.

trusktr

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Why is my new concrete gray?

This can occur in any of the following forms: Environmental factors such as dry/humid weather are not taken into consideration. Trowel burning the concrete, which would basically 'burn' your cement into a darker color. Finally, improper mixing of water and cement when using two different batches for the job.

Yuriy Faktorovich

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Why is my stained concrete turning white?

Efflorescence is a chalky white salt residue that can occur with any product containing cement. As moisture migrates up to the surface of the concrete, it carries along with it calcium salts from within the concrete. When the salts reach the surface, they react with CO2 in the air and form insoluble calcium carbonate.

bersling

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Why is stamped concrete shiny?

Stamped concrete that has been sealed will have a rich color and glossy sheen if desired. ... Freeze thaw damage can cause cracks or surface flaking and happens when water penetrates the concrete surface and then expands as it freezes. A sealer will keep water from sinking into your concrete.

MonkeyBonkey

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Will a cement truck crack my driveway?

Divin Dave. And if you have any irrigation pipes under the driveway, .... a concrete truck will crack the drive without a doubt and possibly break the irrigation pipes under it. A pumper truck or a motorized concrete buggy are the best options.

d-man

Guest

Will a concrete truck crack my driveway?

Divin Dave.

And if you have any irrigation pipes under the driveway, ....

a concrete truck will crack the drive without a doubt and possibly break the irrigation pipes under it.

A pumper truck or a motorized concrete buggy are the best options..