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  2. Sand-based athletic fields - Wikipedia

    en.wikipedia.org/wiki/Sand-based_athletic_fields

    Sand-based systems will drain multiple inches of water within a short period of time. This allows a sporting event to be played through a rain or after a short delay. Native soil fields, on the other hand, do not drain well and many games have to be cancelled or postponed due to puddling on the field. The good drainage of a sand-based system ...

  3. Shrink–swell capacity - Wikipedia

    en.wikipedia.org/wiki/Shrink–swell_capacity

    If a soil is composed of at least 5 percent of these clay minerals by weight, it could have the ability to shrink and swell. [3] This property is measured using coefficient of linear extensibility (COLE) values. If a soil has a COLE value greater than 0.06, then it can cause structural damage. [2] A COLE value of 0.06 means that 100 inches of ...

  4. Sand equivalent test - Wikipedia

    en.wikipedia.org/wiki/Sand_equivalent_test

    The sand equivalent test quantifies the relative abundance of sand versus clay in soil. It is measured by standardized test methods such as ASTM D2419, AASHTO T176, and EN 933–8. [1] The test is used to qualify aggregates for applications where sand is desirable but fines and dust are not. A higher sand equivalent value indicates that there ...

  5. Soil aggregate stability - Wikipedia

    en.wikipedia.org/wiki/Soil_Aggregate_Stability

    Soil sieve nests with dry soil aggregates after removal from a laboratory drying oven. Soil aggregate stability is a measure of the ability of soil aggregates—soil particles that bind together—to resist breaking apart when exposed to external forces such as water erosion and wind erosion, shrinking and swelling processes, and tillage.

  6. Soil consolidation - Wikipedia

    en.wikipedia.org/wiki/Soil_consolidation

    This is the case for most types of sand and clay with low amounts of organic material. However, in soils with a high amount of organic material such as peat, the phenomenon of creep also occurs, whereby the soil changes volume gradually at constant effective stress. Soil creep is typically caused by viscous behavior of the clay-water system and ...

  7. Unified Soil Classification System - Wikipedia

    en.wikipedia.org/wiki/Unified_Soil...

    clean sand SW well-graded sand, fine to coarse sand SP poorly graded sand sand with >12% fines SM silty sand SC clayey sand Fine grained soils 50% or more passing the No.200 (0.075 mm) sieve silt and clay liquid limit < 50 inorganic: ML silt CL lean clay organic: OL organic silt, organic clay: silt and clay liquid limit ≥ 50 inorganic MH ...

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  9. Geosynthetics - Wikipedia

    en.wikipedia.org/wiki/Geosynthetics

    Drainage is the equilibrium soil-to-geosynthetic system that allows for adequate liquid flow without soil loss, within the plane of the geosynthetic over a service lifetime compatible with the application under consideration. Geopipe highlights this function, and also geonets, geocomposites and very thick geotextiles.

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