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Physico-Chemical Properties of Fuel Ashes as Factor of Interaction with Cationic Bitumen Emulsion
https://orcid.org/http://orcid.org/0000-0003-0972-2942
https://orcid.org/http://orcid.org/0000-0001-6895-4511
https://orcid.org/http://orcid.org/0000-0002-7569-1825
https://orcid.org/http://orcid.org/0000-0002-4130-5703
To maintain the stability of bitumen emulsions, the constancy of the hydrogen index of the introduced components is of great importance. However, the establishment of the pH value of the water extraction of fuel ashes does not allow fully assessing the effect and giving a reliable predictive assessment of the stability of the emulsion in the cationic bitumen emulsion – fuel ash system. The paper presents the results of a comparative assessment of four types of fuel ashes with three indicators: acid-base properties, their electrokinetic potential in an aqueous medium, and the hydrogen index of an aqueous extract from a water-ash solution. The methods used for assessing the physicochemical properties of fuel ashes are necessary but, not all are informative in terms of assessing their potential and effectiveness in using cationic bitumen emulsion. It is shown that assess the effect of evils on the decay rate of a cationic bitumen emulsion, the H0 and ζ-potential are the most informative for use in the rapid assessment of the possibility of using this type of technogenic raw material. The studied types of ash were ranked to reduce the degree of negative influence on the stability of the cationic bitumen emulsion.
Physico-Chemical Properties of Fuel Ashes as Factor of Interaction with Cationic Bitumen Emulsion
https://orcid.org/http://orcid.org/0000-0003-0972-2942
https://orcid.org/http://orcid.org/0000-0001-6895-4511
https://orcid.org/http://orcid.org/0000-0002-7569-1825
https://orcid.org/http://orcid.org/0000-0002-4130-5703
To maintain the stability of bitumen emulsions, the constancy of the hydrogen index of the introduced components is of great importance. However, the establishment of the pH value of the water extraction of fuel ashes does not allow fully assessing the effect and giving a reliable predictive assessment of the stability of the emulsion in the cationic bitumen emulsion – fuel ash system. The paper presents the results of a comparative assessment of four types of fuel ashes with three indicators: acid-base properties, their electrokinetic potential in an aqueous medium, and the hydrogen index of an aqueous extract from a water-ash solution. The methods used for assessing the physicochemical properties of fuel ashes are necessary but, not all are informative in terms of assessing their potential and effectiveness in using cationic bitumen emulsion. It is shown that assess the effect of evils on the decay rate of a cationic bitumen emulsion, the H0 and ζ-potential are the most informative for use in the rapid assessment of the possibility of using this type of technogenic raw material. The studied types of ash were ranked to reduce the degree of negative influence on the stability of the cationic bitumen emulsion.
Physico-Chemical Properties of Fuel Ashes as Factor of Interaction with Cationic Bitumen Emulsion
https://orcid.org/http://orcid.org/0000-0003-0972-2942
https://orcid.org/http://orcid.org/0000-0001-6895-4511
https://orcid.org/http://orcid.org/0000-0002-7569-1825
https://orcid.org/http://orcid.org/0000-0002-4130-5703
To maintain the stability of bitumen emulsions, the constancy of the hydrogen index of the introduced components is of great importance. However, the establishment of the pH value of the water extraction of fuel ashes does not allow fully assessing the effect and giving a reliable predictive assessment of the stability of the emulsion in the cationic bitumen emulsion – fuel ash system. The paper presents the results of a comparative assessment of four types of fuel ashes with three indicators: acid-base properties, their electrokinetic potential in an aqueous medium, and the hydrogen index of an aqueous extract from a water-ash solution. The methods used for assessing the physicochemical properties of fuel ashes are necessary but, not all are informative in terms of assessing their potential and effectiveness in using cationic bitumen emulsion. It is shown that assess the effect of evils on the decay rate of a cationic bitumen emulsion, the H0 and ζ-potential are the most informative for use in the rapid assessment of the possibility of using this type of technogenic raw material. The studied types of ash were ranked to reduce the degree of negative influence on the stability of the cationic bitumen emulsion.
Physico-Chemical Properties of Fuel Ashes as Factor of Interaction with Cationic Bitumen Emulsion
Lecture Notes in Civil Engineering
Klyuev, Sergey Vasil'yevich (editor) / Lesovik, Valeriy Stanislavovich (editor) / Vatin, Nikolay Ivanovich (editor) / Markov, A. Yu. (author) / Strokova, V. V. (author) / Markova, I. Yu. (author) / Stepanenko, M. A. (author)
International Scientific Conference on Innovations and Technologies in Construction ; 2020 ; Belgorod, Russia
2020-07-31
7 pages
Article/Chapter (Book)
Electronic Resource
English
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