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Characterization and properties of elephant grass ashes as supplementary cementing material in pozzolan/Ca(OH)(2) pastes
(Elsevier B.V., 2014-12-30)
This work presents the behavior of two elephant grass ashes, as pozzolans, elephant grass cameroon (EGC) and napier (EGN), calcined under controlled conditions (700 degrees C). The ashes were initially submitted to a ...
Assessment of sugar cane straw ash (SCSA) as pozzolanic material in blended Portland cement: Microstructural characterization of pastes and mechanical strength of mortars
(2015-07-21)
Abstract The aim of this paper is to assess the pozzolanic reactivity of sugar cane straw ash (SCSA) obtained through an auto-combustion process and the mechanical properties of SCSA-containing systems. Characterization ...
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; ...
Study of pozzolanic properties of two sugarcane bagasse ash samples from Honduras
(2016-01-01)
It is well known that the combustion of agricultural waste such as rice husk, bamboo leaf and bagasse among others, depending on the combustion process, may produce powders with pozzolanic properties. Two samples of sugarcane ...
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 ...
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, ...
Assessment of pozzolanic/hydraulic reactivity of vitreous calcium aluminosilicate (VCAS)
(2016-04-15)
The aim of this paper is to assess the possibility of using vitreous calcium aluminosilicate (VCAS) as a supplementary cementitious material in the production of Portland cement mortars. The calcium hydroxide consumption ...
Improving the reactivity of a former ground sugarcane bagasse ash produced by autogenous combustion through employment of two different additional grinding procedures
(2021-02-08)
Studies on reactivity of sugarcane bagasse ash (SCBA), obtained by an autogenous combustion process, with low loss on ignition and three different particle sizes were carried out (SCBA-1, SCBA-2 and SCBA-3). The ashes were ...