Expansive clay - Wikipedia
WEBExpansive clay is a clay soil that is prone to large volume changes (swelling and shrinking) that are directly related to changes in water content. [1] Soils with a high content of expansive minerals can form deep cracks in …
Expansive Soils Map for the United States - Geology.com
WEBMap showing the geographic distribution of expansive soils in the conterminous United States.
Expansive Soil Causes Basement & Foundation Problems - Geology.com
WEBHowever, a number of clay minerals are expansive. These include: smectite, bentonite, montmorillonite, beidellite, vermiculite, attapulgite, nontronite, and chlorite. There are also some sulfate salts that will expand with changes in temperature.
Expansive Clay - an overview | ScienceDirect Topics
WEBExpansive clays are found in many countries worldwide, and they exhibit inherent volume change during the seasonal moisture variation causing cracks, heaves, and damages to the overlying pavements. Chemical stabilisation is one of the most used approaches to treat the expansive clay subgrades.
Road Construction With Expansive Clays - Substrata
WEBWe’ll explore what expansive clays are, the problems with building on clay, and some clay stabilizers you can use to construct better, stronger roads on these soils. What Is Expansive Clay? Clay is one of the four main soil types (the …
WEBExpansive clay is a generic term used by architects, engineers and contractors to indicate any soil that exhibits, by observation or by tests, the characteristic of volumetric expansion or contraction when subjected to an increase or decrease in moisture content. This phenomenon occurs only in clays, but does not occur equally in all clays.
Expansive Clays and Soft Soils - Stratum Logics
WEBExpansive clay soils, also known as heavy or fat clay soils, are characterized by their soft texture containing minerals that undergo significant volumetric changes with seasonal moisture fluctuations. They absorb water, swelling up to ten percent or more when wet, and subsequently crack when dry.
Expansive Soils - SpringerLink
WEBMay 4, 2018 · These clay soils are known as expansive soils, shrink-swell soils, cracking soils, or vertic soils. Some clay soils contain high proportion of exchangeable sodium in colloidal surfaces. They remain dispersed and are called dispersive clay soils.
Expansive Soils and Clays - SpringerLink
WEBJan 1, 2016 · Expansive soils and clays: Soils (or clay minerals) that exhibit considerable volume change with change in moisture content. Expansive soils contain appreciable amounts of swelling clay minerals.
Expansive Soils and Construction Implications | EDT Engineers
WEBJan 23, 2018 · Expansive soils, also known as soils with high shrink-swell potential, are common in various geographic regions, especially the central portion of North America. These soils are fine-grained clay minerals comprised of illites, kaolinites, or montmorillonites.