Thermal resistivity, sound absorption and vibration damping of concrete composite doped with waste tire Rubber: A review

• Published in: Construction & building materials 2021-09, Vol.299, p.123939, Article 123939
• Main Authors: Bala, Anu, Gupta, Supratic
• Format: Article
• Language: English
• Subjects: Green buildings; Rubberized concrete; Sound absorption; Thermal resistivity; Vibration damping; Waste tire
• ISSN: 0950-0618; 1879-0526
• DOI: 10.1016/j.conbuildmat.2021.123939

•Waste tire rubber is a sustainable material for the construction industry.•Thermal resistivity, sound absorption and vibration damping is summarized for rubberized concrete (RC).•Size and texture along with doped rubber amount significantly alter the properties of RC.•RC is recommended for non-structural applications to reduce the energy loss, noise and vibrations. Accumulation of a huge volume of waste tires every year due to rubber tires' non-biodegradable nature is a major environmental concern worldwide. The scientific community has accelerated its efforts to find waste tire disposal alternatives because of the serious consequences. The construction sector is a major contributor to global warming and environmental degradation because of its dependence on natural resources that are diminishing or under huge pressure to meet the growing population’s demand. The utilization of discarded tires in the construction industry is an economical and sustainable solution to meet the current and future environmental challenges. In the present study, the research work on thermal resistivity, sound absorption, and vibration damping of rubberized concrete (RC) has been reviewed and compiled. Significant research has been conducted to determine the concrete composites’ behaviour with recycled rubber’s substitution in varying sizes and proportions. The addition of rubber particles results in lightweight structures with reduced mechanical strength but having higher energy dissipation capacity, thermal resistance, and sound absorption capability. Chemically and physically treated rubber particles yield better performance as compared to untreated rubber particles. Increasing rubber contents increases the porosity of concrete mix, increasing thermal resistivity and sound absorption. The coefficient of noise reduction is more significant in the higher frequency beyond 500 Hz. Rubberized concrete exhibits higher damping ratio and shows ductile behaviour under external loading. Thus, rubberized concrete elements are more promising for impact-resisting applications and energy savings in industrial, commercial, and residential buildings.