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  • Is Cracked Concrete Bad News?

    If the slab cannot rise and fall evenly it will crack Tree roots can also cause concrete to heave if slowly over time Settling (also called Subsidence) When the ground under the concrete settles cracks could form if the settling is uneven Remove the source of water to fix the issue If water is

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    How to Prevent Concrete Cracks

    Concrete also cracks in the extreme sun as it heats the concrete and causes it to expand At the end of the day the concrete contracts and regresses to its original unbaked position A homeowner can help prevent cracking scaling crazing and pitting by yearly applying a good acrylic silicone solvent-based sealer to their concrete

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    6 Types of Concrete Cracks and What They Mean

    2 Expansion concrete cracks Just like a balloon heat causes concrete to expand When concrete expands it pushes against anything in its way (a brick wall or adjacent slab for example) When neither has the ability to flex the expanding force can be enough to cause concrete to crack

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    Sealing and Waterproofing Cracks in Concrete

    Sealing and Waterproofing Cracks in Concrete Over time and exposure to the elements exterior concrete can develop cracks due to temperature changes ground movement improperly placed joints and excessive loads Once a crack develops it is important to seal the crack from water to prevent further deterioration

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    Does Freshly Poured Concrete Normally Crack?

    Dear Angie I just had a new concrete driveway poured and the very next morning several cracks showed up in the concrete My contractor says that this is normal and will not affect the integrity of the concrete My contractor had a representative from the material supplier come out and take a look and he also said that this was normal

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    Best Way to Fix Patios Porches Concrete Floors

    Over time as concrete absorbs water and other materials freeze/thaw cycles and ground shift cause concrete to flake/scale off or crack Certain deicers cause mild to significant surface damage depending on type and strength of chemicals Also frustrating is the unsightly discoloration that occurs with the untreated porous top layer

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    Epoxy Floor Coatings What Are Those Cracks In My Floor?

    Jan 19 2016Concrete floor cracks are explained and analyzed in this in-depth article from Stronghold Floors about concrete floor repair The purpose of this blog is to deal with questions we get so often when it comes to epoxy floor coatings o Drying shrinkage typically causes a jagged crack that occurs in a 3-point pattern

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    epoxy paint failure problems

    5 3 Cold Concrete Surface Temperatures - This can cause a solids coating to wrinkle or contract during the curing cycle 5 3 1 W hen the concrete floor surface is below 50F do not coat it 6 Excessive Wear Erosion of a Coating Surface Beyond Expectations - Premature wear or abrasion of a coating

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    Alligatoring

    Protective Concrete Coatings Waterproofers Concrete Preparation Products These cracks generally do not expose the substrate (e g the surface that has been painted) POSSIBLE CAUSE Natural aging of oil-based paints due to temperature fluctuation The constant expansion and contraction results in a loss of paint film elasticity

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    Heaved Concrete

    Heaving foundations and slabs can cause several problems in your home Foundation upheaval can lift an entire structure but more often it forces parts of a foundation or slab upwards creating cracks and uneven floors If you have seen cracking floors or walls sticking doors and windows and uneven surfaces in your home you could have a foundation heave problem

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    Common Rebar Problems and How to Fix Them

    Aug 07 2013Here are a few examples of rebar in need of repair and how to properly correct the problem Fixing Rebar the Right Way As you can clearly see in this picture the rebar that was originally placed inside of this concrete structure has become exposed This can happen for many reasons but what is going on here is called "spalling "

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    How can I Repair Cracks in Concrete? (with pictures)

    Feb 05 2020perhaps the most common cause of cracked concrete is standing water cracks in concrete can also be caused by unevenly dense subsurfaces below the slab for example if some areas below the concrete are soft and compressible and others are firm the uneven settling could cause cracks over time

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    That's How The Concrete Crumbles When Ice Melt Causes

    Jul 02 2015First when it comes to concrete repair all the deteriorated concrete as well as concrete contaminated with salt must be removed If the contaminattion is not removed the salt will continue to draw in moisture through the concrete coating freezing in the winter and triggering premature failure of the coating

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    Main Reasons for Cracks in Concrete Floor and How to Deal

    Dec 27 2018If the stress becomes unbearable for the now-hardened concrete cracks begin to develop to relieve tension 3) Concrete slab dried up too quickly Rapid drying of the slab is another factor that causes the development of cracks on a concrete garage floor There are two types of cracks under this cause crazing cracks and crusting cracks

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    Types and Causes of Concrete Deterioration

    internal stress within the concrete that may be sufficient to cause cracking and spalling of the concrete cover Corrosion of embedded metals in concrete can be greatly re-duced by placing crack-free concrete with low permeability and sufficient concrete cover Table 1 shows the concrete cover re-

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    How to Evaluate Cracks in Poured Concrete Slabs

    Before we describe crack movement and damage patterns and diagnosis in concrete slabs we need to introduce three different types of poured concrete floor slabs We use the three Carson Dunlop Associates Sketches shown here to comment on the occurrence causes and significance of cracks and movement in poured concrete slab construction

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    Peeling and Cracking

    Peeling and cracking when a coating fails to properly adhere to the surface is a common problem These articles from Sherwin-Williams can help! Flaking and peeling of a coating applied to concrete flooring Peeling - Due to Moisture (Inside) Thin long and relatively straight cracks that form in the paint film usually in the direction

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    What to Use to Stop Water From Seeping Up Through a

    Ignoring cracks in your concrete floor—even those as small as 1/8 inch wide—is like inviting water into your home To seal up these cracks use a concrete patching compound available from hardware and home improvement stores These materials come pre-mixed or in concrete

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    Cracking the Case of Cracks in Overlays

    Oct 10 2005Brian Vicari owner of The Concrete Colorist Inc says you should always examine the substrate slab and look specifically for areas that may cause issues in the future such as cracks that are raised on one side (signaling up and down movement) wide cracks

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    Fix Cracked Concrete

    Crack-Weld is a two-component epoxy that can be used to fix cracked concrete in practically any setting on practically any job Simply mix the A formula and B formula together apply and spread the mixture and wait In five short minutes the epoxy will penetrate into the crack wick into the concrete

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    Types of Cracks in Concrete

    Hairline cracks may develop in concrete foundations as the concrete cures Hairline cracks do not cause problems with the stability of the foundation but do cause leakage problems If the cracks appear shortly after pouring the concrete foundation concrete

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    Why do concrete floors crack?

    Oct 17 2017Deeper cracks can cause a few other problems however Since concrete is porous some transfer of vapors from the ground into the building is inevitable (unless you have a vapor barrier coating) Deep cracks however can create a larger channel for gases such as water vapor or radon to enter creating potential problems for workers

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    Cracking the Case of Cracks in Overlays

    Oct 10 2005Brian Vicari owner of The Concrete Colorist Inc says you should always examine the substrate slab and look specifically for areas that may cause issues in the future such as cracks that are raised on one side (signaling up and down movement) wide cracks

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    Diagnose Evaluate Step Cracks in Concrete Block Walls

    Diagnose Evaluate Step Cracks in Concrete Block Walls / Foundations Angular cracks / step cracking in concrete block brick or other CMU walls Diagonal foundation or wall cracks in concrete block or other CMU walls foundations diagnosis repair This chapter of the Foundation Crack Bible discusses in detail the process of evaluating stair-stepped or diagonal cracking and related signs

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    CORROSION OF CONCRETE REINFORCEMENT

    Dec 23 2015Corrosion of Concrete Reinforcement Corrosion is a chemical process of destruction of material because of its reaction with the environmental conditions The most predominant among various factors of corrosion is the atmospheric corrosion which causes the rusting of steel Appreciable corrosion only starts when the relative humidity of the air exceeds around 65% In dry

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    5 REASONS WHY CONCRETE CRACKS

    Nov 17 2017We often get asked about the causes behind concrete cracks Customers wonder why they can appear even in a newly poured foundation A homeowner will question why it is cracking and wonder if they received substandard workmanship or products When installed properly concrete is one of the most durable and long lasting products you can []

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    Cracks in Concrete

    Concrete frequently cracks no matter how well the contractor has done his job Despite concrete's unmatched surface durability it is susceptible to the damage associated with annual freeze/thaw cycles Some concrete cracks are no problem but others can allow moisture to come up through the slab and damage flooring and perhaps some furnishings

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    Evaluating Cracking in Concrete Procedures

    Aug 17 2019It is important to understand the factors that influence the above causes of cracking in order to eliminate the cause and select the correct repair method The following sections explore the causes of cracking in hardened concrete in more depth Drying Shrinkage This is the main cause of cracking in hardened concrete

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    Epoxy School

    In other words those that don't suffer know their causes practice the right habits to prevent them and in some cases just have a bit of good old-fashioned luck Bubbles pinholes craters - education The education part comes from understanding what causes bubbles pinholes and craters in concrete coatings

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    Repairing Small Cracks Or Spalled Concrete Surfaces

    Featured Product Top 'N Bond Concrete Patcher When it comes to knowing how to fix cracks in concrete you'll need to do your homework to ensure the job gets done right Failing to treat your concrete with care could result in your driveway steps or

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