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Microstructure of Crushable Expanded Clay Aggregates
2023The images show two different and complementary views of a mixture of Light Expanded Clay Aggregate (LECA) particles with size ranging between 0.25–1.0 mm. The upper-left is a SEM image showing a projected view of the particles, while the lower-left is a slice of a micro Computed Tomography (μCT) 3D reconstruction.
Guida G. +4 more
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Metal inclusion in expanded clays
Toxicological & Environmental Chemistry, 2008The possibility to include in expanded clay little amounts of metallic ions present in waste material, without significant influence on the environment, was investigated. In this article, known quantities of cadmium(II), lead(II), chromium(III), and chromium(VI) were added to a mixture of raw pit clay, adding a small amount of mineral oil.
BOTTARI, Emilio Giovanni +3 more
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Lipid Peroxidation Induced by Expandable Clay Minerals
Environmental Science & Technology, 2009Small-sized environmental particles such as 2:1 phyllosilicates induce oxidative stress, a primary indicator of cell damage and toxicity. Herein, potential hazards of clay particle uptake are addressed. This paper reports that the content and distribution of structural Fe influence the ability of expandable clay minerals to induce lipid peroxidation ...
Daria, Kibanova +2 more
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The Acoustic Properties of Expanded Clay Granulates
Building Acoustics, 2002The purpose of this work is to characterise experimentally and theoretically the acoustic performance of mixes of loose expanded clay granulates. The surface acoustic impedance is obtained from measurements in the impedance tube and predicted using the Pade approximation approach.
ASDRUBALI, Francesco, K. V. Horoshenkov
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Microstructural Analysis of Iberian Expanded Clay Aggregates
Microscopy and Microanalysis, 2012AbstractThis article presents a detailed study of the microstructure of Iberian expanded clay lightweight aggregates (LWA). Other than more commonly used mercury porosimetry (MP) and water absorption methods, the experimental study involves optical microscopy, scanning electron microscopy (SEM), and microtomography (μ-CT).
J Alexandre, Bogas +2 more
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Rupelian Boom clay as raw material for expanded clay manufacturing
Applied Clay Science, 1993Abstract The Rupelian Boom clay has been investigated with respect to its bloating characteristics. In industrial practice, it was found that too much organic matter has a negative impact on bloating and that iron compounds have to be added to facilitate the expansion process.
J. Decleer, W. Viaene
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2011
Nowadays, light-weight concrete (lwc) is increasingly used in construction, namely lwc with aggregates of expanded clay type called Liapor. It is often necessary to perform tests for the characteristics of cast-in-place concrete during building construction as well as after the construction.
J. Brozovsky, D. Benes, J. Zach
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Nowadays, light-weight concrete (lwc) is increasingly used in construction, namely lwc with aggregates of expanded clay type called Liapor. It is often necessary to perform tests for the characteristics of cast-in-place concrete during building construction as well as after the construction.
J. Brozovsky, D. Benes, J. Zach
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Effect of expandable clays and cometabolism on PAH biodegradability
Environmental Science and Pollution Research, 2003Pyrene and phenanthrene degradation was examined in both single and binary slurry systems for three different natural soils. It was found that the amount of total expandable clays (smectite and vermiculite) was in a good agreement with the achieved rate and extent of biodegradation.
Sangchul, Hwang, Teresa J, Cutright
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Expanded clays in water treatment: some alternative filtration media
Rendiconti online della Società Geologica Italiana, 2016Companies from different industrial sectors regularly use biological aerated filters to reduce pollutants resulting from industrial productions. These filters use a bed of inert material for the growth of a microbial colony which has the key role to break down pollutants.
Graziano S. F. +4 more
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