Results 11 to 20 of about 3,477 (195)
Clays for Low-Carbon Cements: Overview, Progress, and Challenges. [PDF]
Glob ChallThis review provides a critical overview of recent developments of activated clays to function as artificial pozzolans. After a thorough description of the clays that yield good pozzolanic performances, selected examples are given on thermal and mechanical activations. Chiefly, general correlations are extracted from reported data despite its scattered
Koufany I +4 more
europepmc +2 more sources
Applied Surface Science Advances, 2023 The structure, porosity, and functionality of synthesized chitosan-clay nanocomposites (NCs) are examined throughout this work in relation to the initial stoichiometry and octahedral cavity occupation of the clay fraction.
Wael Albouchi +3 more
doaj +1 more source
Journal of the Mechanical Behavior of Materials, 2021 Solvent-free ball milling was used to activate kaolin, a trioctahedral clay material, with diammonium phosphate[(NH4)2HPO4] to serve as a fast-acting phosphorus and nitrogen releasing fertilizer. Different tests on a mixture of 3:1 weight ratio of kaolin:
Alrbaihat Mohammad R. +2 more
doaj +1 more source
Elucidating the crystal-chemistry of Jbel Rhassoul stevensite (Morocco) by advanced analytical techniques [PDF]
, 2008 The composition of Rhassoul clay is controversial regarding the nature of the puremineral clay fraction which is claimed to be stevensite rather than saponite.
A. Maazouz +28 more
core +3 more sources
Мінеральні ресурси України, 2019 Results of complex research of different age ancient weathering crusts in various rocks (terrigenous-carbonate rocks of Lower Paleozoic, dolerites, tuffs and tufogene formations, kimberlites) within the main diamondiferous regions of the Siberian ...
M. M. Zinchuk
doaj +1 more source
Controlled Rate Thermal Analysis and Differential Scanning Calorimetry of Sepiolites and Palygorskites [PDF]
, 2003 A series of sepiolites, palygorskites and "Rocky Mountain Leather" clay minerals have been analysed by controlled rate thermal analysis and differential scanning calorimetry.
Ding, Zhe, Frost, Raymond
core +2 more sources
Composition of Smectite from Maastrichtian Sediment of the Afikpo Basin, southeast Nigeria
Journal of Applied Sciences and Environmental Management, 2019 The sand, silt, shale and clay fractions soils derived from Maastrichtian sediments in the Afikpo Basin, southeastern Nigeria exhibit unusually high cation-exchange capacities. Smectite was identified by X-ray diffraction in all sample fractions and was
A.N. Agibe +3 more
doaj +1 more source
Crystal structure and crystal chemistry of fluorannite and its relationships to annite [PDF]
, 2007 This contribution deals about the crystal chemical characterization of fluorannite from Katugin Ta-Nb deposit, Chitinskaya Oblast’, Kalar Range, Transbaikalia, Eastern-Siberian Region, Russia. The mineral chemical formula is (K0.960Na0.020Ba0.001) (Fe2+2.
BRIGATTI, Maria Franca +3 more
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Suhailite, a new ammonium trioctahedral mica
American Mineralogist, 2009 12 páginas. A new ammonium-bearing trioctahedral mica (suhailite) has been found in gneisses from the Betic Cordillera (Spain). Suhailite appears as aggregates of golden grains unoriented with respect to the main foliation. It shows weak pleochroism from light to darker yellow and low birefringence (0.028).
Ruiz Cruz, María Dolores +1 more
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Hydration of Na-saturated synthetic stevensite, a peculiar trioctahedral smectite [PDF]
Clay Minerals, 2020 AbstractSmectite interlayer water plays a key role in the mobility of elements and molecules and affects a variety of geological processes. In trioctahedral smectites, in contrast to saponite and hectorite, the layer charge of which originates from isomorphic substitutions, the stevensite layer charge originates from the presence of octahedral ...
Vinci, Doriana +4 more
openaire +2 more sources