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  2. List of adhesive tapes - Wikipedia

    en.wikipedia.org/wiki/List_of_adhesive_tapes

    Invisible double-sided tape used to attach hair pieces or to hold delicate fabrics against the skin. Reflective tape High-visibility adhesive tape with retroreflective sheeting. Thread seal tape Polytetrafluoroethylene (PTFE) film tape commonly used in plumbing for sealing pipe threads. Ultra-high-molecular-weight polyethylene tape

  3. Thread seal tape - Wikipedia

    en.wikipedia.org/wiki/Thread_seal_tape

    PTFE tape used for different sized fittings PTFE tape for natural gas. There are two US standards for determining the quality of any thread seal tape. MIL-T-27730A (an obsolete military specification still commonly used in industry in the US) requires a minimum thickness of 3.5 mils and a minimum PTFE purity of 99%. [3]

  4. Surface treatment of PTFE - Wikipedia

    en.wikipedia.org/wiki/Surface_treatment_of_PTFE

    Polytetrafluoroethylene (PTFE), better known by its trade name Teflon, has many desirable properties which make it an attractive material for numerous industries. It has good chemical resistance, a low dielectric constant, low dielectric loss, and a low coefficient of friction, making it ideal for reactor linings, circuit boards, and kitchen utensils, to name a few applications.

  5. Filler (materials) - Wikipedia

    en.wikipedia.org/wiki/Filler_(materials)

    Concrete filler materials are called construction aggregate and include gravel, stone, sand, and rebar. Gravel, stone, and sand are used to reduce the cost of concrete. Rebars are used to strengthen the concrete. [11]

  6. Concrete sealer - Wikipedia

    en.wikipedia.org/wiki/Concrete_sealer

    Concrete sealers are applied to concrete to protect it from surface damage, corrosion, and staining. They either block the pores in the concrete to reduce absorption of water and salts or form an impermeable layer which prevents such materials from passing.

  7. Concrete leveling - Wikipedia

    en.wikipedia.org/wiki/Concrete_leveling

    In civil engineering, concrete leveling is a procedure that attempts to correct an uneven concrete surface by altering the foundation that the surface sits upon. It is a cheaper alternative to having replacement concrete poured and is commonly performed at small businesses and private homes as well as at factories, warehouses, airports and on roads, highways and other infrastructure.

  8. 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.

  9. Fiber-reinforced concrete - Wikipedia

    en.wikipedia.org/wiki/Fiber-reinforced_concrete

    Normal concrete contains 19 mm (0.75 in) equivalent diameter aggregate which is 35-45% of concrete, fibers longer than 20 mm (0.79 in) are more effective. However, fibers that are too long and not properly treated at time of processing tend to "ball" in the mix and create work-ability problems.

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