Recent Study of Some Geotechnical Properties of White and Colored Kaolin Clay in Iraq Western Desert | Chapter 9 | Modern Advances in Geography, Environment and Earth Sciences Vol. 4

 The geotechnical properties of white and coloured Kaolin rocks were investigated during this study. The presence of iron oxides (Fe2O3) on the geotechnical qualities of white and coloured kaolin rocks was investigated using an experimental programme. Because of the oxidation influences, white Kaolin clay has better geotechnical capabilities than coloured kaolin clay. The iron oxide in coloured kaolin disrupted the internal structure of the Kaolinitic mineral and decreased the crystallinity degree, causing it to become porous. We can get the (G dyne, K dyne, B, ) parameters from (Vp, Vs), and we can get the (Easta) parameters from (Vp, Vs) (E dyne). Because of the effect of iron oxides on structure, the compressive strength of white and coloured kaolin differs during: modulus Ratio, toughness modules), indicating that coloured kaolin is weaker than white kaolin. White kaolin rocks have a higher rate of decreasing resistance than coloured kaolin rocks.

Author(s) Details

Ahmad Abed Hamady
Applied Geology Department, College of Science, Anbar University, Iraq.

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Performance of Concrete with Fly Ash and Kaolin Inclusion: New Perspectives | Chapter 1 | International Research in Environment, Geography and Earth Science Vol.2

The researchers seek for sustainable building materials, with low cost, less green gases emissions,
open wide range of materials replacement to cement in structure applications. Fly ash and kaolin as
calcium and aluminum materials possess pozzolana and cementious properties can be partially
replace cement. In this study Class F fly ash and kaolin were replaced cement in concrete mix.
Material type and mix ratio affects the strength and workability of cement-concrete matrices.
Comparison between fly ash and kaolin-cement showed that kaolin reduced both the strength and
workability of concrete. While the replacement of 10% fly ash with cement improves the
comprehensive strength of concrete in 28 days period, and the workability was increased by 53.8%.

Author(s) Details

Dr. Afaf Ghais
Department of Chemical Engineering, University of Khartoum, Khartoum, Sudan.

Duaa Ahmed
Department of Chemical Engineering, University of Khartoum, Khartoum, Sudan.


Ethar Siddig
Department of Chemical Engineering, University of Khartoum, Khartoum, Sudan.


Isra Elsadig
Department of Chemical Engineering, University of Khartoum, Khartoum, Sudan.


Samah Albager
Department of Chemical Engineering, University of Khartoum, Khartoum, Sudan.

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