Silt and Clay are considered to be smaller family members of soil group, Even small amounts of fines can have significant effects on the engineering properties of soils. If as little as 10 percent of the particles in sand and gravel are smaller than the No.200 sieve size, the soil can be virtually impervious, especially when the coarse grains are well graded.
Clay involves one of the major constituent in the construction process.Clay is an important construction material,so should know about the properties of clay.The important raw material used for making brick is clay.When it is wet state,clay is highly compressive.But when it dried,it becomes very hard material.Sufficient hardness and strength is acquired by heating clay after moulding to a ...
other sites in the London Basin in order to build up a picture of the characteristics of London Clay, based on laboratory and in situ tests. The link between engineering properties and ...
The engineering properties of soils is much conce rned with the deformation and streng th of bodies of soil. It deals with the mechanical properties of the soil materials and with the application ...
Clay mineral - Clay mineral - Chemical and physical properties: Depending on deficiency in the positive or negative charge balance (locally or overall) of mineral structures, clay minerals are able to adsorb certain cations and anions and retain them around the outside of the structural unit in an exchangeable state, generally without affecting the basic silicate structure.
For example, bentonite clay (BC) is composed primarily of montmorillonite , , , have been employed to cementing materials like mortar and concrete to upgrade their strength properties , . Chemically, bentonite is termed as a hydrous aluminum silicate comprising with minor quantities of alkali and alkaline soil metals with other minerals such as ...
The higher the percentage of clay minerals in marine clay such as smectite and montmorillonite, the higher is the reductions in the strength and engineering properties. Moreover, Yunus et al.  and Rahman et al.  conducted microstructural studies on Malaysian marine clay to observe its mineral compositions.
Clays exhibit plasticity when mixed with water in certain proportions. However, when dry, clay becomes firm, and when fired in a kiln, permanent physical and chemical changes occur.These changes convert the clay into a ceramic material. Because of these properties, clay is used for making pottery, both utilitarian and decorative, and construction products, such as bricks, walls, and floor tiles.
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Silt and Clay are considered to be smaller family members of soil group, Even small amounts of fines can have significant effects on the engineering properties of soils. If as little as 10 percent of the particles in sand and gravel are smaller than the No.200 sieve size, the soil can be virtually impervious, especially when the coarse grains ...