Publication: Effects of temperature and alkaline solution on electrical conductivity measurements of pozzolanic activity
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Issued Date
2011
Resource Type
File Type
application/pdf
ISSN
9589465
Other identifier(s)
2-s2.0-79955066345
Rights Holder(s)
Scopus
Bibliographic Citation
Cement and Concrete Composites. Vol 33, No.5 (2011), p.622-627
Suggested Citation
Sinthaworn S., Nimityongskul P. Effects of temperature and alkaline solution on electrical conductivity measurements of pozzolanic activity. Cement and Concrete Composites. Vol 33, No.5 (2011), p.622-627. doi:10.1016/j.cemconcomp.2011.02.012 Retrieved from: https://hdl.handle.net/20.500.14740/7331
Author(s)
Abstract
The influence of alkaline solutions (which are unsaturated lime, saturated lime and ordinary Portland cement solution), reaction temperatures (40 °C, 60 °C and 80 °C), and quantity of tested sample in 200 mL of alkaline solution on the pozzolanic reaction of silica fume (SF) is considered on electrical conductivity measurements. The results reveal that raising the reaction temperature accelerates the pozzolanicity and 80 °C is a recommended reaction temperature for the rapid evaluation of pozzolanic activity. An ordinary Portland cement (OPC) solution is proposed and used as an alkaline solution for pozzolanic activity evaluation. Increasing the amount of SF also increases the chemical reaction rate. It was found that using 1.0 g of SF/200 mL of OPC solution yield the best results. This study could be used as a basis for further development of a more accurate, rapid evaluation of pozzolanic activity. © 2011 Elsevier Ltd All rights reserved.
Subject(s)
Alkaline solutions
Effects of temperature
Electrical conductivity
Electrical conductivity measurements
Evaluation
Further development
Ordinary Portland cement
Pozzolanic activity
Pozzolanic reaction
Reaction temperature
Alkalinity
Electric conductivity
Electric conductivity measurement
Lime
Portland cement
Reaction rates
Silica
Silica fume
Temperature
Solution mining
Effects of temperature
Electrical conductivity
Electrical conductivity measurements
Evaluation
Further development
Ordinary Portland cement
Pozzolanic activity
Pozzolanic reaction
Reaction temperature
Alkalinity
Electric conductivity
Electric conductivity measurement
Lime
Portland cement
Reaction rates
Silica
Silica fume
Temperature
Solution mining