Abstract
A new type of conductive aggregate was prepared by the calcination of magnetically separated fly ash (MSFA). The effects of the calcination atmosphere, calcination temperature, and iron oxide content on the electrical resistivity were studied. Experimental results show that the optimal calcination conditions are a reducing atmosphere and a temperature of 1150°C. Iron oxides were reduced to iron by the reducing atmosphere and formed a continuous electrical path; the conductive mechanism is electron conduction. The water absorption and apparent density of the optimal conductive aggregate were 5%, and ∼2.0g/cm3. The new series of conductive aggregates provided good electrical conductivity (volume resistivity of all conductive aggregates<10Ω-cm).
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
