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Production of agroindustrial ashes with pozzolanic activity via acid leaching, conjugated burning and ultrafine grinding
(ANTAC - Associação Nacional de Tecnologia do Ambiente Construído, 2020)
Calcined illite-chlorite shale as supplementary cementing material: Thermal treatment, grinding, color and pozzolanic activity
(Elsevier Science, 2019-10)
The thermal transformation (100–1100 °C) of two shales containing illite-chlorite (I/Ch), feldspars and quartz from La Cabañita quarry (Olavarria, Argentine) was studied by TG-DTA, XRD and FTIR. It included dehydration; ...
Thermal Treatment and Pozzolanic Activity of Calcined Clay and Shale
(American Concrete Institute, 2019-07)
Clayminerals are the most abundant raw materials for calcined pozzolans. Thermaltransformation includes dehydration, dehydroxylation, mineral collapse, andneo-formation. Depending on the type and amount of clay mineral, ...
Potential use of Argentine kaolinite clays as pozzolanic material
(Elsevier Science, 2014-11)
Different Argentine kaolinitic clays were selected to study their potential pozzolanic activity. The incidence of several factors such as the origin of deposits (primary or sedimentary clays), mineralogical composition, ...
Effects of waste glass powder as pozzolanic cement supplementary material for structural elements
(Trans Tech Publications Ltd, 2022-01-01)
The ever-growing global production of glass generates high waste percentages, the vast majority of which does not get recycled hence increasing the concern on its environmental impact. Studies on the pozzolanic properties ...
A proposal of pozzolanic pre-qualification of geological materials: X ray diffractometry as an alternative methodProposta de pré-qualificação pozolânica de materiais geológicos: difratometria de raios X como método alternativo
(Instituto Geológico, Secretaria do Meio Ambiente, São Paulo, 2003)
Effect of thermal treatment on pozzolanic activity of excavated waste clays
(Elsevier, 2019-06-30)
Samples of excavated waste clays were characterized by X-ray fluorescence, laser granulometry, specific surface area, X-ray diffraction, and thermo-gravimetric analysis. Excavated clays were calcined at 550 ºC and 650 ºC ...
Pozzolanic activity quantification of hollow glass microspheres
(Elsevier, 2021-04)
Hollow glass microspheres (HGMS) have been widely used in the hydrocarbon industry for cementing wells with low-density slurries. These consist of amorphous siliceous hollow spheres filled with gas, providing a low-density ...
Massive volcanic glass: natural pozzolan in the West of São Paulo StateVidro vulcânico maciço: pozolana natural no oeste paulista
(Universidade de São Paulo, Instituto de Geociências, 2011)