Applied Clay Mineralogy Phần 3 docx

Some common clays are used as a raw material in the mix to make

cement. In this use, the chemical composition is important, particularly

the alumina and silica values.

REFERENCES

Bailey, S.W. (1980) Structures of layer silicates. Chapter 1 in Crystal Structures

of Clay Minerals and their X-Ray Identification. Brindley, G.W. and Brown,

G., eds. Mineralogical Society Monograph No. 5, London, pp. 1–123.

Bailey, S.W. (1988) Chlorites: structures and crystal chemistry. Chapter 10

in Hydrous Phyllosilicates. Bailey, S.W., ed. Reviews in Mineralogy Vol. 19,

pp. 347–403.

Table 9. Properties necessary to make lightweight aggregate

Chemical and mineralogical composition

Temperature at which gases are evolved

Vitrification range and temperature

Fired specific gravity (this use will be discussed in Chapter 8)

Fig. 19. Rileys (1951) diagram showing the relationship of chemistry and bloating to

produce a lightweight aggregate.

30 Applied Clay Mineralogy