Pozzolanic activity of kaolins containing aluminum hydroxide. [PDF]
Sci Rep, 2020 AbstractThe addition of 10 wt% aluminum hydroxide to two crude kaolinitic clays, a commercial and a natural freshly mined one, has enhanced their pozzolanic activity, more substantially in the natural sample containing gibbsite. The obtained blends were used as replacement of 20 wt% of Portland cement in the formulations of pastes and mortars which ...
Tchamo Leussa CC +4 more
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Pozzolanic activity experimental dataset of calcined coal gangue [PDF]
Data in Brief, 2023 The coal gangue in this dataset was subjected to a series of processes, including drying, crushing, and milling. Subsequently, the coal gangue powder was subjected to high-temperature calcination in a muffle furnace, with a heating rate of 4 ℃/min.
Junfei Zhang, Haoyang Han, Ling Wang
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The Pozzolanic Activity of Calcined Clay – Silica Gel Composites
Medžiagotyra, 2013 The effect of silica gel additive on pozzolanic activity of burned clays was investigated on this study. It was determined that calcined (600 ºC – 730 ºC) clay of Saltiskiai quarry has very low pozzolanic activity (104 mg – 55 mg CaO/g).
Raimonda KUBILIŪTĖ, Rimvydas KAMINSKAS
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Improvement of coal fly ash pozzolanic activity by different physical methods [PDF]
Journal of Mining and Metallurgy. Section A: Mining, 2014 This paper presents the results of laboratory investigations performed in order to determine the possibility of improving the pozzolanic activity of coal fly ash from two Serbian Thermal Power Plants.
Jovanović I. +4 more
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Effect of ZnO on the pozzolanic activity and physico-mechanical properties of modified metakaolin cement mortar composites [PDF]
Scientific ReportsMetakaolin (MK) is commonly added to enhance the mechanical and durability properties of concrete. The pozzolanic activity of MK can be improved by calcining approximately ≈ 1 wt% ZnO with kaolin.
M. A. Tantawy, M. A. Abdelzaher
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Pozzolanic activity of flint powder
Sustainable Construction Materials and Technologies (SCMT), 2019 It was tested whether powdered flint is able to reach pozzolanic properties comparable to fly ash. The flint aggregates were crushed and milled to three different grain size fractions comparable to coal fly ash. The powdered flint was characterized and subsequently used as a substitute in mortar prisms.
Lennart Osterhus +2 more
openalex +2 more sources
Mechanochemical treatment of Serbian kaolin clay to obtain high reactive pozzolana [PDF]
Journal of the Serbian Chemical Society, 2013 Mechanochemical treatment of Serbian kaolin clay was carried out in a planetary ball mill using two different milling media, hardened steel or zirconia vials and balls. The samples obtained with various milling times were characterized by the particle
Mitrović Aleksandra, Zdujić Miodrag
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Data on the pozzolanic activity in coconut shell ash (CSA) for use in sustainable construction [PDF]
Data in Brief, 2018 The data presented herein are results of the research summary of the investigation for pozzolanic activity in coconut shell ash (CSA) towards a sustainable construction.
Opeyemi Joshua +6 more
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Study on the pozzolanic activity of sugar cane straw ash produced using different pretreatments
Química Nova, 2017 This work systematically describes a laboratory study on different pretreatments of sugar cane straw to produce pozzolanic ash. Two procedures were used to accelerate the hydrolysis of celluloses and hemicelluloses and remove metallic impurities present ...
Guilherme Chagas Cordeiro +2 more
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Assessment of the pozzolanic activity of ornamental stone waste after heat treatment and its effect on the mechanical properties of concretes [PDF]
Revista IBRACON de Estruturas e Materiais, 2018 This paper aims at evaluating the pozzolanic properties of ornamental stone processing waste after heat treatment at 1200 °C (HTOSPW) and analyzing the influence on the mechanical strength of concrete produced with HTOSPW addition at the contents of 5 ...
S. H. M. MITTRI +4 more
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