Results 61 to 70 of about 2,625 (181)

Scalable Electrochemical Concrete Fabrication and Closed‐Loop Recycling

open access: yesAdvanced Science, Volume 13, Issue 24, 27 April 2026.
The electrochemical‐driven recycling strategy establishes a reversible concrete material flow by extracting Ca, Si, Al, and Fe from concrete waste and regenerating functional feedstocks. These reversed products are reassembled into new concrete, which re‐enters service and ultimately returns to waste, enabling a closed‐loop, waste‐origin, and low ...
Hanxiong Lyu   +7 more
wiley   +1 more source

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

open access: yesJournal 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   +1 more source

Analysis of thermal process of pozzolan production

open access: yesMateriales de Construccion, 2004
The objective of this study was evaluated the effect of heat treatment parameters on the pozzolanic activity of natural kaolin clays. The experimental design included three factors: kaolin type, temperature and time.
R. Mejía De Gutiérrez   +2 more
doaj   +1 more source

Sustainable High‐Performance Green Concrete Utilizing Untreated Spent Foundry Sand: Microstructural Analysis, Mechanical Properties, and Durability

open access: yesEngineering Reports, Volume 8, Issue 4, April 2026.
This study demonstrates the successful incorporation of Spent Foundry Sand (SFS) as a sustainable alternative to natural sand in concrete, enhancing compressive and tensile strengths by up to 26% and 12.87%, respectively, while reducing chloride permeability.
Yiren Wang, Lian Ju, Yibo Wang, Wei Liu
wiley   +1 more source

Prediction of strength activity index using chemical and physical properties of pozzolans

open access: yesCement
Reductions in cement use have essential benefits in reducing the embodied energy in concrete and CO2 emissions. Hence, effective assessment of potential pozzolanic materials is highly desirable to facilitate usage as sustainable supplementary ...
Farzaneh Elyasigorji, Habib Tabatabai
doaj   +1 more source

Evaluation of Pozzolanic Activity for Effective Utilization of Dredged Sea Soil

open access: yesInternational Journal of Concrete Structures and Materials, 2017
In this work, pozzolanic activities of dredged sea soil from two different sources (South Harbor at Busan and Jangsaengpo Harbor at Ulsan) in Republic of Korea were investigated.
Hoon Moon   +4 more
doaj   +1 more source

Microstructure and Performance Optimization of Barley Husk Ash–Blended Mortars: A Sustainable Approach to Cement Substitution

open access: yesEngineering Reports, Volume 8, Issue 4, April 2026.
Barley husk ash (BHA), an agricultural byproduct rich in pozzolanic oxides, was optimized as a sustainable cement substitute. Statistical modeling and experimental validation confirmed 22.75% BHA as the optimal replacement, enhancing mechanical and durability performance while advancing eco‐efficient construction practices.
Behailu Zerihun Hailemariam   +3 more
wiley   +1 more source

Effect of calcined factors on the whiteness and activity of calcined coal gangue products

open access: yes工程科学学报
Coal gangue (CG), a by-product of coal mining and processing, has long been considered problematic solid waste. Its large-scale disposal raises significant safety concerns and environmental issues.
Peijie XU   +4 more
doaj   +1 more source

The Influence of Production Parameters on Pozzolanic Reactivity of Calcined Clays

open access: yesNordic 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
doaj   +1 more source

Caracterização de cinza do bagaço de cana-de-açúcar para emprego como pozolana em materiais cimentícios Characterization of sugar cane bagasse ash for use as pozzolan in cementitious materials

open access: yesQuímica Nova, 2009
This work presents the results of morphological and physical-chemical characteristics of a sugar cane bagasse ash material sample produced under controlled burning conditions.
Guilherme Chagas Cordeiro   +2 more
doaj   +1 more source

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