Results 11 to 20 of about 375,303 (201)
Significance of fineness of pozzolans in determining pozzolanic reactivity
CementThis paper presents the quantification of the pozzolanic reactivity of pozzolans examined in terms of compressive strength, bound water and electrical resistivity.
Mahipal Kasaniya +3 more
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The Influence of Production Parameters on Pozzolanic Reactivity of Calcined Clays [PDF]
Nordic Concrete Research, 2018 Calcined clays are gaining increasing interest as future supplementary cementitious materials for the production of blended cements. Besides the mineralogy, the right production conditions can affect the pozzolanic activity of calcined clays.
Danner Tobias, Justnes Harald
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Methods for Evaluating Pozzolanic Reactivity in Calcined Clays: A Review. [PDF]
Materials (Basel), 2023 The search for alternative materials to replace ordinary Portland cement has been the object of work that enhances the investigation of the use of pozzolanic materials and the reduction of the carbon footprint with supplementary cementitious materials. However, not all materials are available to meet the large-scale demand for cement replacement.
Pinheiro VD +5 more
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Evaluation of Pozzolanic Reactivity of Artificial Pozzolans [PDF]
Materials Science Forum, 2012 Pozzolanicity is a very interesting issue regarding building materials, as a way to enhance mortars and concrete durability. This property results from the reaction between calcium hydroxide and silica and alumina based materials. Different types of natural and artificial pozzolans show pozzolanic activities that differ depending on the materials ...
Pontes, J. +2 more
openaire +4 more sources
Pozzolanic Reactivity and Hydration Products of Hedenbergite
Chemical Engineering Transactions, 2017 With hedenbergite, desulfurized gypsum and calcium hydroxide as the materials, this paper studies the pozzolanic reactivity of finely ground hedenbergite and performs XRD, IR, NMR and SEM analysis on the hydration products of the neat paste specimens ...
Biyao Geng +7 more
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Monitoring the reactivity of pozzolans by thermogravimetric method
Acta Polytechnica CTU ProceedingsThis work focuses on comparing the effect of ten different types of pozzolans on the strength of lime pastes in relation to their pozzolanic activities as determined by the Chapelle test and monitoring the reactivity of these pozzolans using the ...
Martin Vyšvařil
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Increasing the Pozzolanic Reactivity of Recovered CDW Cement Stone by Mechanical Activation
Materials Proceedings, 2023 The study focuses on enhancing the reactivity of the fine size fraction of construction and demolition waste (CDW) by mechanical activation in a stirred media mill. Systematic measurements were carried out to monitor the change in cement stone reactivity.
Roland Szabó +3 more
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Classification and Milling Increase Fly Ash Pozzolanic Reactivity [PDF]
Frontiers in Built Environment, 2021 Upcycling and reclaiming of low quality or stored coal combustion fly ashes could enable to tap into a voluminous resource of supplementary cementitious materials (SCMs) for low-carbon blended cements.
Ruben Snellings +3 more
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Influence of Mineral Impurities on the Pozzolanic Reactivity of Metakoalin
, 2015 In nature, kaolinite deposits are rarely completely pure. In addition to the mineral kaolinite other clay minerals such as smectites and illites, but also non-clay minerals such as quartz, feldspar, calcite and muscovite are often present in the clay.
Sofie Hollanders +2 more
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Case Studies in Construction MaterialsThe use of pozzolanic materials as a sustainable partial replacement option for portland cement in concrete has been extensively studied over the last few decades. This study aimed to assess the pozzolanic reactivity of seven different powdered materials:
Farzaneh Elyasigorji, Habib Tabatabai
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