Results 11 to 20 of about 12,946 (261)

Enhancing pozzolanic activity of fly ash via dry and wet milling: A comparative study for sustainable construction material enhancement

open access: goldJournal of CO2 Utilization
This investigation delineates the enhancement of fly ash (FA) properties through mechanical treatments for sustainable construction applications and reducing carbon dioxide (CO2) emissions.
Hussein M. Hamada   +3 more
doaj   +2 more sources

Pozzolanic and hydraulic activity of nano-metakaolin

open access: yesHBRC Journal, 2014
Nano-metakaolin (NMK) was prepared by firing of Nano-kaolin (NK) at different temperatures (750–825 °C) for 2 h. The pozzolanic activities of NMK samples were studied using hydrated lime as an activator.
S.A. Abo-El-Enein   +5 more
doaj   +2 more sources

Barley Straw Ash: Pozzolanic Activity and Comparison with other Natural and Artificial Pozzolans from México

open access: yesBioResources, 2015
The construction industry is one of the largest and most active growth sectors worldwide. It presents an important environmental impact, and one way to reduce the impact of the construction activity is to substitute pozzolanic materials for ordinary ...
Carlos Cobreros   +7 more
doaj   +3 more sources

Pozzolanic activity of stockpile ash: Comparison of test methods

open access: yesCase Studies in Construction Materials, 2023
The paper deals with the determination of the pozzolanic activity of coal-fired power plant fly and bottom ash deposited in stockpiles in the Czech Republic.
Martina Šídlová   +5 more
doaj   +1 more source

Clays for Low-Carbon Cements: Overview, Progress, and Challenges. [PDF]

open access: yesGlob Chall
This review provides a critical overview of recent developments of activated clays to function as artificial pozzolans. After a thorough description of the clays that yield good pozzolanic performances, selected examples are given on thermal and mechanical activations. Chiefly, general correlations are extracted from reported data despite its scattered
Koufany I   +4 more
europepmc   +2 more sources

Feasibility of using pozzolanicity tests to assess reactivity of wood biomass fly ashes

open access: yesGrađevinar, 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
doaj   +1 more source

Evaluation of the Pozzolanic Activity of Glass Powder in Three Maximum Grain Sizes

open access: yesMaterials Research, 2021
The addition of pozzolans has a potentially important role in the cement industry since using waste from other industries has important environmental benefits, including reduced CO2 emissions from cement production.
Alexandre Lopes Borges   +5 more
doaj   +1 more source

Study of the regulation mechanism of calcination temperature on the pozzolanic activity of willow leaf ash

open access: yes工程科学学报, 2023
As a renewable and clean source, biomass energy is one of the substitutes for traditional fossil energy. However, when biomass is burned as an industrial fuel, it produces a large amount of biomass ash with considerable pozzolanic activity.
Chaoyu WANG   +6 more
doaj   +1 more source

Influence of substrate annealing on inducing Ti3+ and oxygen vacancy in TiO2 thin films deposited via RF magnetron sputtering [PDF]

open access: yes, 2018
Nano-crystalline TiO2 has been prepared by RF magnetron sputtering at varied substrate temperatures ranging from 200 to 500 °C. The alteration of oxygen and titanium atom in TiO2 at uppermost surface is clearly observed on the effect of annealing ...
Abdullah, S.A.   +6 more
core   +1 more source

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