Optimisation of the composition of comprehensively modified self-compacting fine-grained concrete mixtures for vibration-free and low-vibration construction technologies
DOI:
https://doi.org/10.56143/rsvpqs59Keywords:
self-compacting concrete; fine-grained concrete mix; complex modifier; composition optimisation; vibration-free technology; compressive strength; flexural strength; density; water-cement ratio; burnt mould waste; polycarboxylate superplasticiserAbstract
The article presents the results of research on optimising the composition of complex modified selfcompacting
fine-grained concrete mixtures intended for vibration-free and low-vibration construction
technologies. The aim of the work was to establish rational component ratios that ensure an optimal
balance between the rheological and strength characteristics of concrete. The parameters considered for
optimisation were compressive strength at 1, 7 and 28 days, flexural strength, average density, and watercement
ratio. It was found that the use of a complex modifier, including mineral and chemical additives,
contributes to a reduction in the water-cement ratio while maintaining the necessary mobility, increases
early and final strength, and ensures the formation of a dense and homogeneous material structure without
the use of vibration compaction. The results obtained can be used in the development of energy-efficient
technologies for monolithic construction using self-compacting fine-grained concretes.
