Results 71 to 80 of about 2,655 (181)

Production of supplementary cementitious material as a sustainable management strategy for water treatment sludge waste

open access: yesCase Studies in Construction Materials, 2020
This paper investigates the application of Water Treatment Sludge (WTS), the main waste generated by water potabilization activities, for the development of a Supplementary Cementitious Material (SCM).
Luis Gabriel Graupner de Godoy   +4 more
doaj   +1 more source

Correlation analysis of various characteristics of fly ash based on particle separation

open access: yesCase Studies in Construction Materials
Due to the diversity of fly ash particles, it is a scientific way to promote the comprehensive utilization of fly ash with high efficiency to sort and classify the particles.
Shuxia Feng   +4 more
doaj   +1 more source

Evaluating the Effect of Calcination and Grinding of Corn Stalk Ash on Pozzolanic Potential for Sustainable Cement-Based Materials

open access: yesAdvances in Materials Science and Engineering, 2020
In developing countries, one of the usual practices is the uncontrolled, open burning of corn stalk (CS) or its utilization as a fuel. It is known that the ash obtained under uncontrolled burning conditions constitutes blackish and unburnt carbon ...
Shazim Ali Memon   +4 more
doaj   +1 more source

Effect of CO2 concentration on high-temperature carbon fixation and pozzolanic activity of high-calcium fly ash

open access: yes工程科学学报
To simultaneously capture CO2 emitted from coal-fired power plants and enhance the pozzolanic activity of high-calcium fly ash, this study investigates the carbon fixation behavior of high-calcium fly ash through dry carbonation under various atmospheric
Shengyu SU   +6 more
doaj   +1 more source

Evolution of the hydration in cements with additions

open access: yesMateriales de Construccion, 2002
In this paper, the hydration mechanism of portland cement pastes with limestone, quartz and natural pozzolan (80/20 weight) was analized. The techniques used were nonevaporable water content, pozzolanic activity and X-ray diffraction.
V. L. Bonavetti   +2 more
doaj   +1 more source

The Possibilities for Using Ash and Slag Waste in Civil Engineering

open access: yesApplied Sciences
This research aimed to improve our understanding of how ash and slag waste (ASW) could be used in civil engineering. The present study concentrated on the utilisation of bottom sand (ASW) in cement composites as a replacement for a part of aggregate and ...
Natalia Stankiewicz, Wioleta Rutkowska
doaj   +1 more source

Study on the pozzolanic activity of sugar cane straw ash produced using different pretreatments

open access: yesQuímica Nova
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
doaj   +1 more source

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