Results 11 to 20 of about 1,990 (176)
Feasibility of using pozzolanicity tests to assess reactivity of wood biomass fly ashes
Građevinar, 2021 Pozzolanic activity of materials can initially be assumed from the quantity of the pozzolanic oxides SiO2, Al2O3 and Fe2O3. Some of the methods for assessing pozzolanic reactivity of materials include measurement of CaO consumption (Frattini test ...
Karmen Kostanić Jurić +3 more
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ASM Science Journal, 2022 The effects of calcination on spent bleaching earth ash (SBEA) were investigated in terms of its contribution to pozzolanic reactivity as well as the strength of blended cement mortar when used as partial cement substitution.
Chung Han Lim
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State-of-the-art-review on rice husk ash: A supplementary cementitious material in concrete
Journal of King Saud University: Engineering Sciences, 2021 Rice husk ash (RHA) is a good supplementary cementitious material for concrete production, as it requires low energy and emits negligible greenhouse gas during processing and service life as well as it shows high pozzolanic reactivity.
Ayesha Siddika +3 more
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Investigation on the feasibility of resource utilizing drinking water treatment sludge as a pozzolan to prepare cement-based materials [PDF]
E3S Web of Conferences, 2021 The characteristics of four kinds of sludge obtained from different drinking water treatment plants in Australia and China were contrastively analyzed in this study using x-ray fluorescence, scanning electron microscopy, and x-ray diffraction.
Jia Qiong, Lu Jinsuo, Yang Jing
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Study of chemical and thermal activations of zeolite-lime blend
Cerâmica, 2021 The advantages of using zeolites are lower costs and better durability, but it requires longer setting time and slower strength development. Chemical and thermal methods have been developed to overcome these disadvantages and to enhance the reactivity of
M. Meziani +3 more
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Physical properties and reactivity of pozzolans, and their influence on the properties of lime–pozzolan pastes [PDF]
Materials and Structures, 2010 This paper studies how pozzolan properties including particle size, specific surface, chemical and mineral composition, amorphousness and water demand, affect their reactivity as well as the strength of lime–pozzolan pastes. Reactivity was evaluated with chemical, mechanical and mineralogical methods.
WALKER, ROSANNE, PAVIA, SARA
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Cement, 2023 This study examines the regional variability in the chemical composition and pozzolanic reactivity of corn stover ash (CSA) produced from corn stover samples collected from different locations in the U.S.
Mahmoud Shakouri, Jiong Hu, Cody Stolle
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Mechanical Transformation of Fly Ash toward Its Utilization in Cemented Paste Backfill
Advances in Civil Engineering, 2021 Fly ash (FA) showed low reactivity when being used to prepare the binder for cemented paste backfill (CPB). In the present work, wet-grinding treatment was used to increase the pozzolanic reactivity of FA and promote its sustainable utilization.
Haijun Wang, Yun Duan
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Evaluation the pozzolanic reactivity of sonochemically fabricated nano natural pozzolan
Ultrasonics Sonochemistry, 2012 Natural pozzolans are appropriate supplementary cementitious materials in cement and concrete industry. A simple sonochemical method was developed to synthesize nanostructures of natural pozzolan. Chemical composition, crystallinity, morphology and reactivity of the natural pozzolan samples were compared before and after the sonochemical process, by ...
Azadeh, Askarinejad +2 more
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Materiales de Construccion, 2018 Portland cement (OPC) production is one of the most contaminating greenhouse gas producing activities. In order to reduce OPC consumption, several alternatives are being assessed, and the use of pozzolanic material is one of them.
A. M. Pereira +7 more
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