Next Article in Journal
1,7-Bis-(N,N-dialkylamino)perylene Bisimides: Facile Synthesis and Characterization as Near-Infrared Fluorescent Dyes
Previous Article in Journal
Kinetic Study on the Formation of Bimetallic Core-Shell Nanoparticles via Microemulsions
Article Menu

Export Article

Open AccessArticle
Materials 2014, 7(11), 7533-7547; doi:10.3390/ma7117533

Assessment of Pozzolanic Activity Using Methods Based on the Measurement of Electrical Conductivity of Suspensions of Portland Cement and Pozzolan

1
Facultad de Ingeniería, Universidad Panamericana Campus Guadalajara, Prolongación Calzada Circunvalación Poniente No. 49, 54010 Zapopan, Mexico
2
Instituto de Ciencia y Tecnología del Hormigón (ICITECH), Universitat Politècnica de València, Camino de Vera s/n, 46071 Valencia, Spain
*
Author to whom correspondence should be addressed.
Received: 14 October 2014 / Revised: 8 November 2014 / Accepted: 17 November 2014 / Published: 21 November 2014
View Full-Text   |   Download PDF [1006 KB, uploaded 21 November 2014]   |  

Abstract

The use of methods based on measuring electrical conductivity to assess pozzolanic activity has recently been used primarily in aqueous suspensions of pozzolan: calcium hydroxide. However, the use of similar methods in suspensions of cement with pozzolans has not been widely studied. This paper proposes a new method for rapid assessment of the pozzolanic activity of mineral admixtures in aqueous cement suspensions. In this study, the conditions for the application of the method were optimized, such as time, temperature, w/c ratio and dosage procedure. Finally, results are presented from the application of this method for characterizing the pozzolanic activity of the spent catalytic cracking catalyst. These results corroborate as previously reported, namely the high reactivity of this pozzolan obtained by other methods, such as thermogravimetry or evolution of the mechanical strength. In addition, the pozzolanic activity of the catalyst was compared with other pozzolans such as metakaolin and silica fume. View Full-Text
Keywords: spent fluid catalytic cracking catalyst; pozzolanic activity; electrical conductivity measurement; cement suspension spent fluid catalytic cracking catalyst; pozzolanic activity; electrical conductivity measurement; cement suspension
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Velázquez, S.; Monzó, J.M.; Borrachero, M.V.; Payá, J. Assessment of Pozzolanic Activity Using Methods Based on the Measurement of Electrical Conductivity of Suspensions of Portland Cement and Pozzolan. Materials 2014, 7, 7533-7547.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top