• Efflorescence and Spalling in Concrete - Fine Homebuilding

    Hydrostatic pressure is not the only cause of spalling. Spalling also can be caused by freeze-thaw cycles in concrete and masonry products that have a high moisture content. How to Prevent It. Efflorescence and spalling can be prevented in concrete by stopping moisture migration.

  • Understanding Different Concrete Slab Problems and Defects

    Sep 29, 2015· A concrete slab is one of the most common foundation types found in residential home construction. This is a flat, uniform foundation that's made of sturdy concrete on level ground. While other materials are occasionally used when building home foundations, concrete …

  • Fix for flaky concrete - Inman

    Mar 24, 2010· Efflorescence is caused by the capillary action of water moving through concrete mix, dissolving water-soluble salts in the cement and landing on the surface.

  • American Concrete Institute

    The American Concrete Institute (ACI) is a leading authority and resource worldwide for the development and distribution of consensus-based standards, technical resources, educational programs, certification programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.

  • The Fifty Year Retrospective| Concrete Construction ...

    Over the past fifty years, CONCRETE CONSTRUCTION's contributors have enjoyed serving our readers by finding innovative answers to their concrete quandaries. We look back at fifty years of Problem Clinics. Over the past 50 years, CC has answered thousands of questions in its Problem Clinic. In the ...

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    My basement floor is crumbling in large places. What can I do to fix this so that I can finish my basement? ... My basement floor is crumbling in large places. What can I do to fix this so that I can finish my basement? Show More. ... However, the key to a successful repair and a long lasting one is the preparation needed before the new finish ...

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  • Trouble Shooting Guide for Concrete Dusting| Concrete ...

    One of the most undesirable surface defects that can affect the finish of a concrete slab is the condition known as dusting. This is a problem that is universally distressing to owners, builders, architects, and contractors. The following trouble shooting guide list some of the common causes of ...

  • Causes of Efflorescence - How Efflorescence Works ...

    The good news is that normal weathering usually removes this type of efflorescence, and it does not reappear. Secondary efflorescence, which is caused by water entering the slab or wall, can be more persistent. It may show up at any time and will continue until the moisture problem is solved. Efflorescence also can be seasonal.

  • CMGT 2400 final exam Flashcards | Quizlet

    a. no longer used because of the rapid changes in construction technology ... c. to allow for patching or repair of concrete while t is still relatively green ... a vapor retarder a. is placed between the subbase and slab to prevent the passage of subsoil water and water vapor into the interior of a building b. serves as a slip sheet between ...

  • Moisture in basements: causes and solutions | UMN Extension

    Saturated base of concrete block walls; a ring of dampness. Damp, humid air. Condensation on cold walls and floor in summer. Odor, mold and mildew. Deterioration of carpet or wood. Rot and decay of wood headers, joists, sill plates and columns. Staining and blistering of wall covering. Efflorescence, spalling of concrete or masonry.

  • Corrosion of Embedded Materials - cement.org

    Corrosion of reinforcing steel and other embedded metals is the leading cause of deterioration inconcrete. When steel corrodes, the resulting rust occupies a greater volume than the steel. This expansion creates tensile stresses in the concrete, which can eventually cause …

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    Efflorescence Causes, Removal, and Prevention. . or wicking, upwards into masonry, stucco or concrete, is very often the cause of efflorescence. DIY Home Improvement, How to Videos and Articles . DIY Home Improvement and Repair.

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    What causes efflorescence on concrete floors and walls? Concrete efflorescence is a very common problem on concrete, especially decorative concrete. When moisture and water vapor migrate to the surface of hardened concrete floors, walls, and colored concrete, it carries with it calcium hydroxide.

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    Jun 08, 2017· what is fiber reinforced concrete? what is no fines concrete ? what is concrete? what is pile foundation? 8 causes of cracks in concrete you should know; why steel rods are used in concrete reinforcement?... 8 important tests on bricks you should know …

  • CMGT 2400 final exam Flashcards | Quizlet

    a. no longer used because of the rapid changes in construction technology ... c. to allow for patching or repair of concrete while t is still relatively green d. B & C. d. B & C ... a. is placed between the subbase and slab to prevent the passage of subsoil water and water vapor into the interior of a building

  • Understanding Different Concrete Slab Problems and Defects

    Sep 29, 2015· Secondly, concrete slabs are exposed to the risk of cracking. While some small cracking may not be a big deal in particular situations, even tiny hairline fractures can lead to major problems down the road. Ultimately, a crack in a home's concrete slab foundation could affect a home's flooring or overall stability. Common Concrete Slab Defects

  • Prevent Efflorescence with EffLock - The Concrete Network

    The EffLock efflorescence-curing system from NewLook International does more than just seal the concrete. It works from within, using nano-fusion technology to react and permanently bind with sodium-based impurities in concrete to prevent efflorescence from forming.

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    HZS90 concrete batching plant is a full set of equipment used to produce plastic concrete, dry hard concrete, etc. HZS series stationary concrete batching plant is widely used in big or medium building projects, road and bridges projects, precast concrete plants, etc.

  • What Causes Efflorescence and How do You Remove it ...

    Dec 28, 2005· Decorative Concrete What Causes Efflorescence and How do You Remove it? ... The covers have a waterproof layer to prevent water from evaporating and a layer that wicks water and spreads it evenly across a slab to provide a continuous water layer. ... — Joe Nasvik, based upon an interview with Stan Stratton, Director of Technology Development ...

  • Concrete Efflorescence Sealer | Stop Efflorescence

    Efflorescence: Definition, Causes, Removal, and Prevention by Will Fowler / Wednesday, 01 April 2015 / Published in Basement Waterproofing, Blog, Efflorescence Efflorescence is a problem that commonly exists in masonry and concrete block foundations.

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    I read with great interest your article in which you recommended continuous baffled ridge vents. . efflorescence; it is not a mold . 1 Concrete Leveling and . efflorescence causes prevention repair concrete technology . efflorescence causes prevention repair concrete technology today pl.

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  • Rebar Exposed On Foundation - Concrete, Stone & Masonry ...

    Mar 05, 2012· Care should be taken to keep all sprinklers from watering the sides of our concrete slabs as the water causes damage to siding, bricks, stones and concrete. Do you have questions about your Austin Foundation – Slab on Grade or Pier & Beam? Douglas Foundation Repair of Austin is your home's foundation doctor. Call today! 512-740-8114

  • Concrete Lifting Solutions - JES Foundation Repair

    Concrete Floor Repair. Concrete floor replacement is a lengthy, messy, expensive process. Thankfully, modern technology brings an affordable, non-invasive, fast (one-day installation) new method to the table!Learn more…

  • Concrete Lifting Solutions - JES Foundation Repair

    Our concrete lifting solutions solve problems for home and business owners every day! Whether you have a sinking garage floor, issues with your concrete pool deck, uneven sidewalks, or an uneven patio – we'll work with you to create an economical repair solution that meets your needs.

  • Stucco paint failure diagnosis & stucco painting advice ...

    [4] Painting New Stucco - Combating the Problems, at Scott Paint, a Florida company discusses stucco efflorescence cause and prevention; Painting Contractor Newsletter on Alkalinity and Efflorescence in New Stucco, The Paint Quality Institute, in which the authors point out that high pH and efflorescence correlate. This article suggests that ...

  • Efflorescence - Causes, Removal, and Prevention

    Efflorescence Causes, Removal, and Prevention. ... stucco or concrete, is very often the cause of efflorescence. In the case where soil conditions exhibit water soluble sulfates, precautions should be taken to preclude the passage of this sulfate-bearing water to the structure. Low absorption is the best assurance against efflorescence.

  • Basement Waterproofing Problem Signs - JES Foundation Repair

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  • Efflorescence Prevention & Repair - The Concrete Network

    Efflorescence is not as noticeable when it occurs on gray concrete, but even a little efflorescence on colored concrete can be a contractor's worst nightmare. Efflorescence makes red look pink, brown look tan, and black look gray or even white. The good news is that it will eventually go away on its own as the free calcium is depleted.