1. Hot

    Concrete Surface Preparation: Part 3 - Grades of Concrete ...

    The blasted concrete surface is too rough to be measured by tape and quantified in microns or mils. The most effective reference tool for determining concrete surface profiles is the molded rubber comparator chips, available from the International Concrete Repair Institute.

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    Concrete - Wikipedia

    The proper treatment of the surface of concrete, and therefore its characteristics, is an important stage in the construction and renovation of architectural structures. Prestressed structures. Stylized cacti decorate a sound/retaining wall in Scottsdale, Arizona. Prestressed concrete is a form of ...

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    How to Renew Concrete Surfaces | This Old House

    Step Four // How to Renew Concrete Surfaces. Spread the Dressing. Pour the dressing onto the slab and immediately spread it out. Meanwhile, have a helper mix the next batch. For small areas, like walkways and stairs, spread the dressing with a flat steel trowel. Press down hard to force the dressing into every crevice.

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    How to Resurface Worn Concrete - This Old House

    Learn how to resurface worn concrete with this step-by-step guide from This Old House. DIY concrete refinishing is fairly simple and results in a durable surface.

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    Surface Finishes for Concrete - New Braunfels Utilities

    A surface retarder that penetrates the concrete approximately 1/4 inch shall be applied to the forms or concrete surface as an aid in achieving the desired finish. Wood forms may require 2 or 3 coatings to compensate for absorption. Form joints shall be taped or caulked to prevent escape of the retarder during placing operations.

  6. Hot

    Defects in Concrete Structures - Types Causes, Prevention

    Different types of defects in concrete structures can be cracking, crazing, blistering, delamination, dusting, curling, efflorescence, scaling and spalling. These defects can be due to various reasons or causes. In such case, the design is required to be reviewed in detail and remedial measures ...

  7. Hot

    The Euclid Chemical Company CONCRETE SURFACE …

    The Euclid Chemical Company 19215 Redwood Road • Cleveland, OH 44110 800-321-7628 t • 216-531-9596 f CONCRETE SURFACE RETARDER Master Format #: 03 35 23 CONCRETE SURFACE

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    6 Ways to Measure Surface Profiles for Concrete Surface ...

    Mar 01, 2018· Takeaway: Failure to obtain the proper surface profile can lead to pinpoint rust or other coating failures such as adhesion failure. Concrete may need to be prepared for repairs and overlays, or to clean and/or roughen the surface for the application of a subsequent protective coating. (For more on ...

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    Y 2018 - CCAA

    (appearance) of formed concrete surfaces, for both in-situ and precast concrete elements. The surface finish quality is specified as one of five classes. Classes 1, 2 and 3 are typical architectural applications where the concrete surface visual quality is important. Tolerances for each class are specified for various aspects of the surface

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    How to Seal a Concrete Surface | Port Aggregates

    May 25, 2017· Regularly sealing concrete maintains its longevity and durability for decades to come. Exterior surfaces need protection from the extreme temperatures, inclement weather, heavy impacts, or harsh abrasion. Interior surfaces benefit from sealants that offer protection against heavy foot-traffic, damaging cleaning supplies, and staining. New Concrete Surfaces For new concrete…

  11. Hot

    Decorative Concrete - Ideas for Beautiful Concrete ...

    Concrete designs are one of the hot new trends for concrete patios, concrete floors, entryways, countertops, pool decks and more. From expansive new homes with elaborate concrete driveways to budgeted one-room remodels showcasing a stunning, stained concrete floor, the attraction is continuing to grow when it comes to using concrete for decorating.

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    Concrete Surface Q&A

    Blisters are caused by air and/or water getting trapped under the concrete surface. Improper or premature finishing is the leading cause of blistering. Troweling tends to move water and air bubbles trapped under the sealed surface together. Dry and windy weather conditions cause the concrete surface to dry out and crust over.

  13. Hot

    Concrete Slab Surface Defects: Causes, Prevention, Repair

    The appearance of blisters (Fig. 1) on the surface of a concrete slab during finishing operations is annoying. These bumps, of varying size, appear at a time when bubbles of entrapped air or water rising through the plastic concrete get trapped under an already sealed, airtight surface. Experienced concrete finishers

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    An Architect's Guide To: Concrete Surfaces - Architizer ...

    Concrete Surface Systems "I think that there's a lot of flexibility in terms of working with precast concrete and GFRC (glass fiber reinforced concrete)," said Gracia. "The only real setback is timing; it does take a little bit of planning so depending on scale, it's ideal for architects and designers to reach out to us in the beginning stages of a project.

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    Historic Preservation | Weitzman School

    This two day symposium and workshop will explore built concrete works specifically through consideration of their surface. Valued for its strength and durability, concrete has challenged and expanded the meaning and role of the architectural surface during the material's long and evolving deployment.

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    Repairing Concrete Surfaces - The Concrete Network

    Surface failures like this are one of the most common ailments with concrete, whether caused by freeze-thaw action, aggregate popouts, or corroded reinforcing steel. Many surface failures on concrete slabs are little more than cosmetic—the concrete remains functional but looks bad or has a chalky surface.

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    CIP 5 2014 - National Ready Mixed Concrete Association

    evaporation of surface moisture exceeds the rate at which rising bleed water can replace it. Water receding below the concrete surface forms menisci between the fine particles of cement and aggregate causing a tensile force to develop in the surface layers. If the concrete surface has started to set and

  18. Hot

    Guide to Formed Concrete Surfaces Presented by Technical ...

    Guide to Formed Concrete Surfaces. WEBINAR Current document 117-10, Tolerances The contents of the documents 301 Specifications and 347 Formwork is based on the Form offsets" categories Class A, B, C and D, as described in 117 The new "Guide for Formed Concrete Surfaces" 347.3R-13

  19. Hot

    Rejuvenating Old Concrete Surfaces with Sakrete Flo-Coat ...

    Featured Product: Flo-Coat® Concrete Resurfacer PREPARATION. For a successful concrete resurfacing project, proper surface preparation is critical. Use only when the product, air, and surface temperatures are above 50 0 F for a minimum of 24 hours.; The …

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    QUIKRETE® - Concrete Resurfacer

    QUIKRETE® Concrete Resurfacer provides an economical alternative to removing and replacing existing old, spalled concrete. QUIKRETE® Concrete Resurfacer is a special blend of Portland cement, sand, polymer modifiers and other additives designed to provide a shrinkage compensated repair material for making thin repairs to sound concrete which is in need of surface renewal.

  21. Hot

    Concrete Surface Temperature and Air Temperature - How It ...

    After moisture, the concrete surface temperature along with the air temperature causes the most amount of problems when applying sealers to decorative concrete. The surface temperature is usually the most important to consider. After applying a sealer it goes through a chemical reaction that causes it to cure and form a film.

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    Concrete surface preparation and coating selection – SSPC

    Is the concrete strong and sound, or is it damaged? What defects, such as voids, cracks or laitance, are present on the surface? Are there areas of potential moisture related problems? The concrete surface preparation method on a given surface will vary based on how contaminated, damaged or otherwise compromised it is.

  23. Hot

    Concrete Surface Retarder - Euclid Chemical

    CONCRETE SURFACE RETARDER F & S are chemical formulations which retard, but do not "kill" the set of the mortar at the surface of concrete. When the underlying concrete has hardened, the retarded mortar surface can be flushed off with a stream of water and/or removed by scrubbing with a stiff brush.

  24. Hot

    How to make Salt Finish Concrete Surface - The Constructor

    In this article we study about the work procedure to obtain salt finish concrete surface. Procedures of Salt Finish Concrete Surface. The concrete path construction must be properly facilitated by the contractor in charge, in order to obtain the desired quality, finish and durability.

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    Pros and Cons of Concrete Floors - The Spruce

    The surface of a concrete floor is very hard—falling onto concrete will hurt and may seriously injure people. Items dropped on these surfaces are also likely to shatter or crack. That is why these floors are not recommended for areas which will be used by children or elderly people, or in kitchens where falling dishes are likely.

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    New Concrete Surface Finish Policy - FTBA

    New Concrete Surface Finish Policy. The bridge traffic railing in the left Photo has been in service less than 15 years. The lighter colored sections are the surfaces that remain of the original Class 5 coating. The color of the darker sections is the natural concrete …

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    Repairing Concrete Cracks Using Epoxy

    Nov 24, 2019· When cracks go through a concrete surface, and there is visibility from both ends of the concrete element, the epoxy can be injected from both ends.Sometimes the application might require to make the epoxy more flowable or use another method to inject the epoxy into the concrete.

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    Surf | Concrete Surface Resistivity | Giatec Scientific Inc

    Giatec Surf is a laboratory test device for rapid, easy and accurate measurement of the surface electrical resistivity of concrete based on the four-probe technique. It can also be used to determine the chloride permeability of concrete in accordance with AASHTO TP95 and the upcoming ASTM standard.

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    Concrete Surface Preparation & Profiles - Cemstone

    Concrete Surface Preparation & Profiles Concrete surface preparation for resurfacers, overlays, sealers, stains, or coatings on existing concrete ©TCC Materials® • February 2016 Version 1.0 Notes In addition to having the surface clean, with all chemicals, oil, grease, curing compounds, or …

  30. Hot

    Concrete Surfaces| Concrete Construction Magazine

    Dec 12, 2019· Concrete Construction: Resources for contractors and specifiers including construction methods, materials and practices

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