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  2. Bromine water - Wikipedia

    en.wikipedia.org/wiki/Bromine_water

    Bromine water, Br 2. Bromine water is an oxidizing, intense brown mixture containing diatomic bromine (Br 2) dissolved in water (H 2 O). [1] It is often used as a reactive in chemical assays of recognition for substances which react with bromine in an aqueous environment with the halogenation mechanism, mainly unsaturated carbon compounds (carbon compounds with 1 or more double or triple bond(s)).

  3. Dow process (bromine) - Wikipedia

    en.wikipedia.org/wiki/Dow_process_(bromine)

    In the original invention, bromide-containing brines are treated with sulfuric acid and bleaching powder to oxidize bromide to bromine, which remains dissolved in the water. The aqueous solution is dripped onto burlap, and air is blown through causing bromine to volatilize. Bromine is trapped with iron turnings to give a solution of ferric bromide.

  4. List of construction methods - Wikipedia

    en.wikipedia.org/wiki/List_of_Construction_methods

    construction site workers loading water, sand, ballast and cement into a concrete mixer. Concrete is typically used in commercial buildings and civil engineering projects, for its strength and durability. Concrete is a mix of cement and water plus an aggregate such as sand or stone. Its compression strength means it can support heavy weights. [5]

  5. Reinforced concrete structures durability - Wikipedia

    en.wikipedia.org/wiki/Reinforced_concrete...

    The humidity content of concrete is one of the main influencing factors of CO 2 diffusion in concrete. If concrete pores are completely and permanently saturated (for instance in submerged structures) CO 2 diffusion is prevented. On the other hand, for completely dry concrete, the chemical reaction of carbonation cannot occur.

  6. Controlled permeability formwork - Wikipedia

    en.wikipedia.org/wiki/Controlled_Permeability...

    The basic elements of CPF systems are: Filter - to allow the passage of water and air away from the fresh concrete but retain cement and other fine solids.; Drain - which transfers air and water from the filter to outside the formwork.

  7. Australia says remaining 'Bali Nine' members have returned ...

    www.aol.com/news/australia-says-remaining-bali...

    SYDNEY (Reuters) -The remaining five members of the "Bali Nine" Australian drug ring have returned from Indonesia after diplomatic efforts between the countries this month to strike a repatriation ...

  8. Here’s the last day to send your gifts in time for the holidays

    www.aol.com/last-day-send-gifts-time-143042135.html

    US Postal Service employees work inside the Los Angeles Mail Processing & Distribution Center on December 3. The facility is currently processing 1 million packages per day.

  9. Slip forming - Wikipedia

    en.wikipedia.org/wiki/Slip_forming

    The first residential building of slipform construction; erected in 1950 in Västertorp, Sweden, by AB Bygging Later picture of the residential building in Västertorp. Slip forming, continuous poured, continuously formed, or slipform construction is a construction method in which concrete is placed into a form that may be in continuous motion horizontally, or incrementally raised vertically.

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