EFFECTS OF PLASTICIZING ADMIXTURES ON THE PERFORMANCE OF LOW-CARBON CONCRETES

2025;
: 58-64
https://doi.org/10.23939/jtbp2025.01.058
Received: March 04, 2025
Revised: April 08, 2025
Accepted: May 02, 2025
1
Lviv Polytechnic National University, Department of building production
2
Lviv Polytechnic National University, Department of Building Production
3
Lviv Polytechnic National University, Department of building production
4
MC-Bauchemie Україна

The article presents research results on the influence of technological parameters on the technical and environmental characteristics of low-carbon ready-mix concretes. The study examines the impact of aggregate gradation, cement content, lignosulfonate or polycarboxylate modifiers, and wet fly ash additives on concrete properties. The research demonstrates that clinker- and CO2-intensity indicators collectively determine the clinker efficiency of concrete. It was established that optimizing aggregate granulometry through the introduction of 2-5 mm crushed stone fraction in combination with a polycarboxylate superplasticizer contributes to the formation of a dense microstructure in the cementitious matrix. This approach ensures obtaining the specified concrete strength class with reduced cement consumption. The research confirms that the rational combination of technological factors affecting concrete mixtures opens prospects for creating modern low-carbon ready-mix concretes that meet sustainable development requirements.

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