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<p>The influence of MasterSure HES 1515 polycarboxylate superplasticizer on the physicomechanical properties of high-strength concrete was studied. The relationship between the processes of hydration and structuring of cement systems and the content of MasterSure HES 1515 polycarboxylate superplasticizer added to them was established. It made it possible to reveal the regularities of directed regulation of the technological properties of the concrete mixture and the physicomechanical properties of concrete. When using MasterSure HES 1515 polycarboxylate superplasticizer to reduce water consumption of concrete mixtures and the water-cement ratio (W/C), an increase in the compressive strength of hardened concrete is observed, which is the result of the structure compaction. The increase in compressive strength reaches its greatest value during 2–7&#xa0;days, and up to 28&#xa0;days, hardening reaches 124.5 MPa. The tensile strength of concrete for this composition with the addition of MasterSure HES 1515 (2&#xa0;mass%) at the early age of hardening is 10.9 MPa, and during 28&#xa0;days is 14.5 MPa. Thus, the MasterSure HES 1515 polycarboxylate-type superplasticizer manifests itself as a&#xa0;hardening intensifier, which is especially important during the manufacture of prestressed structures for transferring the stresses to concrete reinforcement in early periods.</p>

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Study of the influence of the MasterSure HES 1515 polycarboxylate-type superplasticizer on the physicomechanical properties of high-strength concretes

  • 期刊论文

  • 发表日期：

    2025年5月1日

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  • Orest Vakhula,
  • Rostyslav Yatsiuk

摘要

The influence of MasterSure HES 1515 polycarboxylate superplasticizer on the physicomechanical properties of high-strength concrete was studied. The relationship between the processes of hydration and structuring of cement systems and the content of MasterSure HES 1515 polycarboxylate superplasticizer added to them was established. It made it possible to reveal the regularities of directed regulation of the technological properties of the concrete mixture and the physicomechanical properties of concrete. When using MasterSure HES 1515 polycarboxylate superplasticizer to reduce water consumption of concrete mixtures and the water-cement ratio (W/C), an increase in the compressive strength of hardened concrete is observed, which is the result of the structure compaction. The increase in compressive strength reaches its greatest value during 2–7 days, and up to 28 days, hardening reaches 124.5 MPa. The tensile strength of concrete for this composition with the addition of MasterSure HES 1515 (2 mass%) at the early age of hardening is 10.9 MPa, and during 28 days is 14.5 MPa. Thus, the MasterSure HES 1515 polycarboxylate-type superplasticizer manifests itself as a hardening intensifier, which is especially important during the manufacture of prestressed structures for transferring the stresses to concrete reinforcement in early periods.