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  2. Soil moisture - Wikipedia

    en.wikipedia.org/wiki/Soil_moisture

    Water is pulled by capillary action due to the adhesion force of water to the soil solids, producing a suction gradient from wet towards drier soil [50] and from macropores to micropores. [51] The so-called Richards equation allows calculation of the time rate of change of moisture content in soils due to the movement of water in unsaturated ...

  3. Damp (structural) - Wikipedia

    en.wikipedia.org/wiki/Damp_(structural)

    Structural dampness is the presence of unwanted moisture in the structure of a building, either the result of intrusion from outside or condensation from within the structure. A high proportion of damp problems in buildings are caused by ambient climate dependent factors of condensation and rain penetration. [ 1 ]

  4. Capillary action - Wikipedia

    en.wikipedia.org/wiki/Capillary_action

    Capillary action of water (polar) compared to mercury (non-polar), in each case with respect to a polar surface such as glass (≡Si–OH). Capillary action (sometimes called capillarity, capillary motion, capillary rise, capillary effect, or wicking) is the process of a liquid flowing in a narrow space without the assistance of external forces like gravity.

  5. Soil mechanics - Wikipedia

    en.wikipedia.org/wiki/Soil_mechanics

    This article describes the genesis and composition of soil, the distinction between pore water pressure and inter-granular effective stress, capillary action of fluids in the soil pore spaces, soil classification, seepage and permeability, time dependent change of volume due to squeezing water out of tiny pore spaces, also known as ...

  6. Moisture expansion - Wikipedia

    en.wikipedia.org/wiki/Moisture_expansion

    Moisture expansion is the tendency of matter to change its volume in response to a change in moisture content. The macroscopic effect is similar to that of thermal ...

  7. Waterproofing - Wikipedia

    en.wikipedia.org/wiki/Waterproofing

    In construction, a building or structure is waterproofed with the use of membranes and coatings to protect contents and structural integrity. The waterproofing of the building envelope in construction specifications is listed under 07 - Thermal and Moisture Protection within MasterFormat 2004, by the Construction Specifications Institute, and includes roofing and waterproofing materials.

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  9. Moisture - Wikipedia

    en.wikipedia.org/wiki/Moisture

    Moisture is the presence of a liquid, especially water, often in trace amounts. Moisture is defined as water in the adsorbed or absorbed phase. [1] Small amounts of water may be found, for example, in the air , in foods, and in some commercial products. Moisture also refers to the amount of water vapor present in the air. The soil also includes ...