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  2. Expansion joint - Wikipedia

    en.wikipedia.org/wiki/Expansion_joint

    Pipe expansion joints are necessary in systems that convey high temperature substances such as steam or exhaust gases, or to absorb movement and vibration. A typical joint is a bellows of metal (most commonly stainless steel), plastic (such as PTFE), fabric (such as glass fibre) or an elastomer such as rubber. A bellows is made up of a series ...

  3. Waterstop - Wikipedia

    en.wikipedia.org/wiki/Waterstop

    PVC, PE and TPV waterstops are made continuous for the length of the concrete joint by heat welding, using simple thermoplastic welding equipment. [1] PE and TPV waterstops are generally installed in joints of secondary containment structures to prevent the passage of hazardous fluids other than water such as fuel oils, acids, or process ...

  4. High-performance fiber-reinforced cementitious composites

    en.wikipedia.org/wiki/High-performance_fiber...

    The ECC patch was used as a replacement to the previously existent expansion joint that linked two deck slabs. Expansion joints, commonly used in bridges to allow for the seasonal expansion and contraction of the concrete decks, are an example of a ubiquitous construction practice that could eventually be eliminated through the use of bendable ...

  5. Properties of concrete - Wikipedia

    en.wikipedia.org/wiki/Properties_of_concrete

    Concrete has a very low coefficient of thermal expansion, and as it matures concrete shrinks. All concrete structures will crack to some extent, due to shrinkage and tension. Concrete which is subjected to long-duration forces is prone to creep. The density of concrete varies, but is around 2,400 kilograms per cubic metre (150 lb/cu ft). [1]

  6. Road surface - Wikipedia

    en.wikipedia.org/wiki/Road_surface

    Concrete roadways may produce more noise than asphalt from tire noise on cracks and expansion joints. A concrete pavement composed of multiple slabs of uniform size will produce a periodic sound and vibration in each vehicle as its tires pass over each expansion joint.

  7. Got Holiday Stress? Here Are 10 Nighttime Activities to Help ...

    www.aol.com/got-holiday-stressies-are10...

    3. Limit non-sleep activities. From our phones, friends, and work, to our favorite Netflix shows, we receive a lot of stimulation during the day.

  8. Slip joint - Wikipedia

    en.wikipedia.org/wiki/Slip_joint

    Slip joints are common under conditions where temperature changes can cause expansion and contraction that may overstress a structure. These are generally referred to as expansion joints . Bridges and overpasses frequently have sliding joints that allow a deck to move relative to piers or abutments.

  9. The Secret Bedtime Hack I Followed to Fall Asleep an Hour Earlier

    www.aol.com/secret-bedtime-hack-followed-fall...

    Follow the 10-3-2-1 sleep rule. This is straightforward, logical advice, and it really works: No caffeine 10 hours before bed. No food or drink 3 hours before.

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