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  2. Damp proofing - Wikipedia

    en.wikipedia.org/wiki/Damp_proofing

    Concrete normally allows moisture to pass through so a vertical vapor barrier is needed. Barriers may be a coating or membrane applied to the exterior of the concrete. 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 ...

  3. 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.

  4. Waterproofing - Wikipedia

    en.wikipedia.org/wiki/Waterproofing

    Masonry walls are built with a damp-proof course to prevent rising damp, and the concrete in foundations needs to be damp-proofed or waterproofed with a liquid coating, basement waterproofing membrane (even under the concrete slab floor where polyethylene sheeting is commonly used), or an additive to the concrete. Within the waterproofing ...

  5. Basement waterproofing - Wikipedia

    en.wikipedia.org/wiki/Basement_waterproofing

    In poured concrete foundations, cracks and pipe penetrations are the most common entry points for seepage. These openings can be sealed from the interior. Epoxies , which are strong adhesives, or urethanes can be pressure injected into the openings, thus penetrating the foundation through to the exterior and cutting off the path of the seepage.

  6. Silicon organic water repellent - Wikipedia

    en.wikipedia.org/wiki/Silicon_organic_water...

    The emulsion is also used to provide various materials with water repellency properties. However, as oligo methyl hydride siloxane is the water emulsion, it can be applied as an additive in the production of solutions and mixtures that is by the volumetric method. for concrete, asbestos, gypsum, ceramic, porcelain

  7. Sodium silicate - Wikipedia

    en.wikipedia.org/wiki/Sodium_silicate

    These coatings are known as silicate mineral paint. An example of the reaction of sodium silicate with the calcium hydroxide found in concrete to form calcium silicate hydrate (CSH) gel, the main product in hydrated Portland cement, follows. [30] Na 2 SiO 3 + y H 2 O + x Ca(OH) 2 → x CaO.SiO 2.y H 2 O + 2NaOH

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