<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The addition of fly ash from thermal power plants (TPP) and chemical additives, such as polycondensation products of acetone and formaldehyde, is an effective and economical method for increasing the strength and durability of building materials, in particular concrete. Fly ash added to the concrete and mortars at 10%–15% does not reduce their technical properties, while polycondensation products of acetone and formaldehyde plasticize and accelerate the hardening process of concrete. The study aims to substantiate the possibility of obtaining concrete on dense aggregates with a high content of fly ash through the use of polycondensation products of acetone and formaldehyde as additives, which are highly soluble in water and polyfunctional. The strength indicators were determined using standard methods. The study has shown quantitative changes in the properties of the fly ash-concrete mixture, improvement of its physical and technical characteristics, and durability of the fly ash concrete with the addition of polycondensation products of acetone and formaldehyde. In the present study, the authors determine the effect of fly ash addition on the properties of a concrete mixture, as well as the maximum possible content of fly ash that can be added to concrete to maximize certain properties required of the mixture; additionally, the same action is conducted with the addition of polycondensation products of acetone and formaldehyde concomitant with the addition of fly ash.</p>
</abstract>

The addition of fly ash from thermal power plants (TPP) and chemical additives, such as polycondensation products of acetone and formaldehyde, is an effective and economical method for increasing the strength and durability of building materials, in particular concrete. Fly ash added to the concrete and mortars at 10%–15% does not reduce their technical properties, while polycondensation products of acetone and formaldehyde plasticize and accelerate the hardening process of concrete. The study aims to substantiate the possibility of obtaining concrete on dense aggregates with a high content of fly ash through the use of polycondensation products of acetone and formaldehyde as additives, which are highly soluble in water and polyfunctional. The strength indicators were determined using standard methods. The study has shown quantitative changes in the properties of the fly ash-concrete mixture, improvement of its physical and technical characteristics, and durability of the fly ash concrete with the addition of polycondensation products of acetone and formaldehyde. In the present study, the authors determine the effect of fly ash addition on the properties of a concrete mixture, as well as the maximum possible content of fly ash that can be added to concrete to maximize certain properties required of the mixture; additionally, the same action is conducted with the addition of polycondensation products of acetone and formaldehyde concomitant with the addition of fly ash.

Development of building materials based on a high content of fly ash and polycondensation products from Chinese heat and power plants

Department of Computer Technologies of Construction and Reconstruction of Airports, Faculty of Architecture, Civil Engineering and Design

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

The addition of fly ash from thermal power plants (TPP) and chemical additives, such as polycondensation products of acetone and formaldehyde, is an effective...

Development of building materials based on a high content of fly ash and polycondensation products from Chinese heat and power plants

Online veröffentlicht: 24. Nov. 2022

Seitenbereich: 270 - 288

Eingereicht: 16. März 2022

Akzeptiert: 09. Okt. 2022

DOI: https://doi.org/10.2478/msp-2022-0025

Schlüsselwörter
acetone-formaldehyde resins, ash-and-slag mixture, concrete properties, fly ash, mineral additive

© 2022 Andrii Bieliatynskyi et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Development of building materials based on a high content of fly ash and polycondensation products from Chinese heat and power plants

Online veröffentlicht: 24. Nov. 2022

Seitenbereich: 270 - 288

Eingereicht: 16. März 2022

Akzeptiert: 09. Okt. 2022

DOI: https://doi.org/10.2478/msp-2022-0025

Schlüsselwörteracetone-formaldehyde resins, ash-and-slag mixture, concrete properties, fly ash, mineral additive

© 2022 Andrii Bieliatynskyi et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Schlüsselwörter
acetone-formaldehyde resins, ash-and-slag mixture, concrete properties, fly ash, mineral additive