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2. Reinforced concrete structures durability - Wikipedia

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

   The initiation time is related to the rate at which carbonation propagates in the concrete cover thickness.Once that carbonation reaches the steel surface, altering the local pH value of the environment, the protective thin film of oxides on the steel surface becomes instable, and corrosion initiates involving an extended portion of the steel surface.

3. Standstill period - Wikipedia

   en.wikipedia.org/wiki/Standstill_period

   The Alcatel mandatory standstill period is a period of at least ten calendar days following the notification of an award decision in a contract tendered via the Official Journal of the European Union, before the contract is signed with the successful supplier(s). Its purpose is to allow unsuccessful bidders to challenge the decision before the ...

4. Polished concrete - Wikipedia

   en.wikipedia.org/wiki/Polished_concrete

   Polished concrete may be considered a form of sustainable design flooring, if less material is used than in comparable types of flooring. [citation needed] Polished concrete floors have the following advantages: low-maintenance [7] – polished concrete is easily maintained with the use of clean water or a neutral pH cleaner. The application of ...

5. Beam and block - Wikipedia

   en.wikipedia.org/wiki/Beam_and_block

   Beam and block is a construction method to support flooring, especially for ground floors as well as multi story buildings. [1] It is made of cast concrete, one piece of which is a prestressed concrete beam, which can be an inverted T-shaped beam, or lintel, the other piece being a simple rectangular block. [1]

6. Self-leveling concrete - Wikipedia

   en.wikipedia.org/wiki/Self-leveling_concrete

   In the category of self-leveling concrete there are two main groups of materials: underlayments and toppings. An underlayment is installed over an existing subfloor to smooth it out and correct any surface irregularities prior to the installation of all types of floor coverings, including sheet vinyl, vinyl composition tile (VCT), wood, ceramic tile and carpet.

7. Cement render - Wikipedia

   en.wikipedia.org/wiki/Cement_render

   They can be used on a wider variety of surfaces than cement render, including concrete, cement blocks, and AAC concrete paneling. These acrylic modified renders may still be too brittle and cannot be applied over substrates like fiber cement sheeting, as they will crack on the joints and can allow water to enter the sheet and cause delamination ...