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  2. Sulfate attack in concrete and mortar - Wikipedia

    en.wikipedia.org/wiki/Sulfate_attack_in_concrete...

    C 3 A hydration products are AFm, calcium aluminoferrite monosulfate, and ettringite, a calcium aluminoferrite trisulfate (AFt). C 4 AF hydrates as hydrogarnet and ferrous ettringite. Sulfate attack typically happens to ground floor slabs in contact with soils containing a source of sulfates. [2]

  3. Stone sealer - Wikipedia

    en.wikipedia.org/wiki/Stone_sealer

    Efflorescence is usually the result of mineral solutions in the capillary channels being drawn to the surface. If the water evaporates, the minerals remain as the so-called efflorescence. It also can be the result of chemical reaction; if badly prepared cement-based mortar is applied to maintain the stone in position, free calcium hydroxide may ...

  4. Basement waterproofing - Wikipedia

    en.wikipedia.org/wiki/Basement_waterproofing

    Spalling is a condition where constant high humidity or moisture breaks down masonry surfaces, causing deterioration and shedding of the concrete surfaces. Other coatings can be effective where condensation is the main source of wetness. It is also effective if the problem has minor dampness. Usually, interior waterproofing will not stop major ...

  5. Hexion - Wikipedia

    en.wikipedia.org/wiki/Hexion

    Hexion offers resins for a wide range of applications like Abrasives, Adhesives, Chemical Intermediates, Civil Engineering, Coatings, Composites, Crop Protection, Electrical/Electronics, Engineered Wood, Fertilizers and Pesticides, Fibers and Textiles, Foams, Friction Materials, Furniture, Molding Compounds, Oilfield, Oriented Strand Board ...

  6. Efflorescence - Wikipedia

    en.wikipedia.org/wiki/Efflorescence

    Primary efflorescence is named such, as it typically occurs during the initial cure of a cementitious product. It often occurs on masonry construction, particularly brick, as well as some firestop mortars, when water moving through a wall or other structure, or water being driven out as a result of the heat of hydration as cement stone is being formed, brings salts to the surface that are not ...

  7. Damp proofing - Wikipedia

    en.wikipedia.org/wiki/Damp_proofing

    A metal damp proof course (DPC) between the stone foundation and brick wall. Damp proofing in construction is a type of moisture control applied to building walls and floors to prevent moisture from passing into the interior spaces. Dampness problems are among the most frequent problems encountered in residences.

  8. The Crane Group Companies - Wikipedia

    en.wikipedia.org/wiki/The_Crane_Group_Companies

    The Crane Group Companies (also known as Crane Group) of Columbus, Ohio, USA, is a holding company of operating units primarily involved in the manufacturing and distribution of building products. Products include wood composite decking and railing, exterior cladding products, vinyl fencing, OEM PVC profiles, wood doors and door-frames, and ...

  9. Concrete degradation - Wikipedia

    en.wikipedia.org/wiki/Concrete_degradation

    Example of secondary efflorescence in parking garage exposed to diluted road salt from vehicles entering the garage during winter. When water flows through cracks present in concrete, water may dissolve various minerals present in the hardened cement paste or in the aggregates, if the solution is unsaturated with respect to them.

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