crumb rubber

The growing global problem of waste tire disposal is prompting the quest for environmentally friendly rubber recycling solutions to support the principles of a circular economy. The development of rubber concrete is a promising aspect. The review highlights the impact of using waste tire rubber in concrete, assesses the advantages and limitations for optimizing material characteristics, as well as environmental benefits. Results of the role of rubber content, size, and additives on the workability, strength, dynamic properties, and durability of rubber concrete are presented.

The use of rubber crumb from used tires in concrete as a partial replacement of natural aggregates is an ecologically oriented direction of their utilization. When rubber crumb was added to Portland cement, a decrease in strength was observed. Modification of rubber-containing Portland cement systems with a complex organic and mineral additive makes it possible to compensate for the loss of compressive strength and provide increased impact strength. Samples without rubber show high strength but are characterized by fragility and sudden destruction of the material.