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  2. Reflective crack - Wikipedia

    en.wikipedia.org/wiki/Reflective_crack

    Cracks under the overlay can cause stress concentration at the bottom of the overlay. Due to the repeated stress concentration, a crack starts in the overlay that has a similar shape to the crack in the old pavement. This crack is called a "reflective crack". [1] Reflective cracking can be categorized as one of the distresses in asphalt ...

  3. Crocodile cracking - Wikipedia

    en.wikipedia.org/wiki/Crocodile_cracking

    A good strategy to prevent overloading, which is a main cause of fatigue cracking, is to increase the depth of the asphalt layer. According to certain researchers, pavements that exceed a certain minimum strength or thickness can hypothetically handle infinitely many loads without showing structural defects, including fatigue cracking. [ 1 ]

  4. Damp proofing - Wikipedia

    en.wikipedia.org/wiki/Damp_proofing

    The coating may be asphalt, asphalt emulsion, a thinned asphalt called cutback asphalt, or an elastomer. [9] Membranes are rubberized asphalt or EPDM rubber . Rubberized products perform better because concrete sometimes develops cracks and the barrier does not crack with the concrete.

  5. Pavement cracking - Wikipedia

    en.wikipedia.org/wiki/Pavement_cracking

    Some of the most important types of crack are as follows: [1] [4] Crocodile cracking, also known as alligator cracking and fatigue cracking; Block cracking (caused by shrinkage of asphalt) Longitudinal cracking—wheel path; Longitudinal cracking—non-wheel path; Transverse cracking; Reflection cracking at joints

  6. Vapor barrier - Wikipedia

    en.wikipedia.org/wiki/Vapor_barrier

    Asphalt-coated kraft paper, often attached to one side of fiberglass batts, 0.40 US perm (22 SI perm). Metallized film; Vapor retarder paints (for the air-tight drywall system, for retrofits where finished walls and ceilings will not be replaced, or for dry basements: can break down over time due to being chemically based).

  7. Dowel bar retrofit - Wikipedia

    en.wikipedia.org/wiki/Dowel_bar_retrofit

    A dowel bar retrofit (DBR) is a method of reinforcing cracks in highway pavement by inserting steel dowel bars in slots cut across the cracks. It is a technique which several U.S. states' departments of transportation have successfully used in repairs to address faulting in older jointed plain concrete pavements.

  8. Vitamin D not recommended for preventing fractures in older ...

    www.aol.com/vitamin-d-not-recommended-preventing...

    The U.S. Preventive Services Task Force released a draft recommendation advising against using vitamin D to prevent falls and fractures in people over 60. Pharmacist Katy Dubinsky weighs in.

  9. Drywall - Wikipedia

    en.wikipedia.org/wiki/Drywall

    Various sized cuts of 1 ⁄ 2 in (13 mm) drywall with tools for maintenance and installation . Drywall (also called plasterboard, dry lining, [1] wallboard, sheet rock, gib board, gypsum board, buster board, turtles board, slap board, custard board, gypsum panel and gyprock) is a panel made of calcium sulfate dihydrate (), with or without additives, typically extruded between thick sheets of ...

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