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- Expansive_clay abstract "Expansive clay or expansive soil is a clay or soil that is prone to large volume changes (swelling and shrinking) that are directly related to changes in water content. Soils with a high content of expansive minerals can form deep cracks in drier seasons or years; such soils are called vertisols. Soils with smectite clay minerals, including montmorillonite and bentonite, have the most dramatic shrink-swell capacity.The mineral make-up of this type of soil is responsible for the moisture retaining capabilities. All clays consist of mineral sheets packaged into layers, and can be classified as either 1:1 or 2:1. These ratios refer to the proportion of tetrahedral sheets to octahedral sheets. Octahedral sheets are sandwiched between two tetrahedral sheets in 2:1 clays, while 1:1 clays have sheets in matched pairs. Expansive clays have an expanding crystal lattice in a 2:1 ratio; however, there are 2:1 non-expansive clays.Mitigation of the effects of expansive clay on structures built in areas with expansive clays is a major challenge in geotechnical engineering. Some areas mitigate foundation cracking by watering around the foundation with a soaker hose during dry conditions. This process can be automated by a timer, or using a soil moisture sensor controller. Even though irrigation is expensive, the cost is small compared to repairing a cracked foundation. A laboratory test to measure the expansion potential of soil is ASTM D 4829.".
- Expansive_clay wikiPageID "5144570".
- Expansive_clay wikiPageLength "2016".
- Expansive_clay wikiPageOutDegree "13".
- Expansive_clay wikiPageRevisionID "652067664".
- Expansive_clay wikiPageWikiLink Bentonite.
- Expansive_clay wikiPageWikiLink Category:Sediments.
- Expansive_clay wikiPageWikiLink Category:Soil_mechanics.
- Expansive_clay wikiPageWikiLink Category:Types_of_soil.
- Expansive_clay wikiPageWikiLink Clay.
- Expansive_clay wikiPageWikiLink Clay_minerals.
- Expansive_clay wikiPageWikiLink Geotechnical_engineering.
- Expansive_clay wikiPageWikiLink Montmorillonite.
- Expansive_clay wikiPageWikiLink Shrink-swell_capacity.
- Expansive_clay wikiPageWikiLink Shrink–swell_capacity.
- Expansive_clay wikiPageWikiLink Smectite.
- Expansive_clay wikiPageWikiLink Soil.
- Expansive_clay wikiPageWikiLink Vertisol.
- Expansive_clay wikiPageWikiLink Water_content.
- Expansive_clay wikiPageWikiLinkText "Expansive clay".
- Expansive_clay wikiPageWikiLinkText "expansive clay".
- Expansive_clay wikiPageWikiLinkText "expansive soil".
- Expansive_clay wikiPageWikiLinkText "swells".
- Expansive_clay hasPhotoCollection Expansive_clay.
- Expansive_clay wikiPageUsesTemplate Template:Civil-engineering-stub.
- Expansive_clay wikiPageUsesTemplate Template:Geology-stub.
- Expansive_clay wikiPageUsesTemplate Template:Hydrology-stub.
- Expansive_clay wikiPageUsesTemplate Template:Reflist.
- Expansive_clay wikiPageUsesTemplate Template:Soil-sci-stub.
- Expansive_clay subject Category:Sediments.
- Expansive_clay subject Category:Soil_mechanics.
- Expansive_clay subject Category:Types_of_soil.
- Expansive_clay hypernym Clay.
- Expansive_clay type Person.
- Expansive_clay type Mechanic.
- Expansive_clay comment "Expansive clay or expansive soil is a clay or soil that is prone to large volume changes (swelling and shrinking) that are directly related to changes in water content. Soils with a high content of expansive minerals can form deep cracks in drier seasons or years; such soils are called vertisols.".
- Expansive_clay label "Expansive clay".
- Expansive_clay sameAs Arcilla_expansiva.
- Expansive_clay sameAs Zwelklei.
- Expansive_clay sameAs m.0d4v1t.
- Expansive_clay sameAs Sét_trương_nở.
- Expansive_clay sameAs Q1626102.
- Expansive_clay sameAs Q1626102.
- Expansive_clay wasDerivedFrom Expansive_clay?oldid=652067664.
- Expansive_clay isPrimaryTopicOf Expansive_clay.