Why Waste Tyres Could Make Concrete Smarter: New Insights into Vibration Damping and Sustainable Construction

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Concrete remains the world's most widely used construction material, yet its inherently brittle behavior limits its ability to dissipate vibration energy under dynamic loading. At the same time, the growing accumulation of discarded vehicle tyres has become a significant environmental concern, particularly in rapidly developing countries where recycling infrastructure remains limited. These two engineering challenges have encouraged researchers to investigate whether waste tyre rubber can improve concrete performance while simultaneously reducing environmental burdens. The reviewed study explores this possibility by evaluating the influence of crumb rubber on the dynamic characteristics, mechanical performance, and vibration damping capacity of concrete. Combining laboratory experiments with numerical simulation, the research provides valuable evidence for engineers seeking more resilient, sustainable, and environmentally responsible construction materials for structures subjected to dynamic loading conditions.

Bibliographic Information

Item Information
Article Title Experimental study on damping properties of concretes under free vibration with different tyre wastes
Authors Cho Zin Win, Khin Su Su Htwe, and Nyan Myint Kyaw
Journal Innovation in Engineering
Volume & Issue Volume 2, Issue 1
Publication Year 2025
Pages 44–56
DOI https://doi.org/10.58712/ie.v2i1.25
Publisher Researcher and Lecturer Society
License Creative Commons Attribution 4.0 International (CC BY 4.0)

1. Research Background

  • Waste tyre management has become an important environmental engineering issue. Millions of tyres reach the end of their service life each year, creating significant disposal challenges. Recycling tyre rubber into construction materials offers an opportunity to reduce landfill accumulation while promoting more sustainable material utilization.
  • Concrete remains indispensable but exhibits brittle mechanical behaviour. Although concrete provides high compressive strength and durability, its relatively low capacity to absorb vibration energy limits its performance under impact, seismic loading, and repeated dynamic excitation.
  • Rubberized concrete has attracted increasing research attention. Previous investigations have shown that crumb rubber can improve ductility, toughness, and energy dissipation while generally reducing compressive strength as rubber content increases. These findings indicate a trade-off between mechanical strength and vibration resistance.
  • The characteristics of crumb rubber significantly influence concrete performance. Earlier studies reported that particle size, replacement ratio, and surface treatment affect the bonding between rubber particles and the cement matrix, ultimately influencing both structural and dynamic behaviour.
  • Dynamic behaviour remains less explored than conventional mechanical properties. While many published studies focus on compressive strength, workability, durability, and elasticity, relatively few investigations have examined damping ratio and natural frequency, particularly when chemically treated crumb rubber is incorporated into concrete.
  • The research addresses this knowledge gap through experimental and numerical investigation. The study evaluates free vibration behaviour, damping characteristics, compressive strength, elastic modulus, and natural frequency of concrete containing treated crumb rubber using both laboratory testing and finite element simulation.
  • Acetic acid treatment is introduced to improve rubber–cement interaction. Instead of using untreated rubber particles alone, the researchers pre-treated crumb rubber with a 5% CH3COOH solution before replacing portions of the fine aggregate, aiming to improve interfacial bonding and overall material performance.
  • The investigation combines sustainability with structural engineering. By transforming waste tyre materials into functional concrete constituents, the research contributes simultaneously to circular economy practices and to the development of construction materials capable of dissipating vibration energy more effectively.
  • The study integrates experimental testing with finite element validation. Laboratory measurements of damping ratio, natural frequency, compressive strength, and elastic modulus are complemented by ANSYS Workbench simulations, allowing comparison between experimental observations and numerical predictions.

2. Research Objectives

  • To investigate the influence of replacing fine aggregate with treated crumb rubber at 5% and 10% replacement levels on the dynamic behaviour of concrete.
  • To evaluate the damping characteristics of rubberized concrete through free vibration testing using the logarithmic decrement method.
  • To determine how different qualities and proportions of crumb rubber affect compressive strength, elastic modulus, and natural frequency.
  • To compare the behaviour of normal concrete with concrete containing both high-quality and low-quality treated crumb rubber.
  • To validate experimental observations using finite element analysis conducted with ANSYS Workbench and compare numerical predictions with laboratory measurements.
  • To assess the feasibility of recycled tyre rubber as a sustainable engineering material for concrete structures subjected to vibration and dynamic loading.

3. Why This Research Matters

  • Supports sustainable construction. Recycling discarded tyre rubber into concrete provides an environmentally responsible alternative to landfill disposal while reducing dependence on natural fine aggregates.
  • Improves vibration performance. Enhanced damping capacity allows concrete to absorb and dissipate more mechanical energy, making it attractive for structures exposed to repeated vibration or impact loading.
  • Advances material engineering. Understanding how rubber quality, treatment, and replacement ratio influence concrete behaviour helps engineers optimize sustainable concrete mixtures without unnecessarily sacrificing structural performance.
  • Contributes to circular economy initiatives. The research demonstrates how industrial waste materials can be transformed into valuable engineering resources capable of delivering additional functional benefits.
  • Provides practical guidance for structural applications. The findings indicate that moderate crumb rubber replacement can balance mechanical strength and vibration resistance, supporting informed material selection in engineering practice.
  • Strengthens confidence through experimental validation. Agreement between laboratory testing and finite element simulation suggests that computational modelling can support future design and optimization of rubberized concrete structures.
  • Promotes resilient infrastructure. Materials capable of dissipating dynamic energy more effectively may improve the long-term performance of structures subjected to traffic loads, machinery vibration, seismic activity, or other cyclic loading conditions.

4. Research Methodology

  • Research Type

    This research employed an experimental quantitative approach to investigate how recycled crumb rubber influences the dynamic and mechanical performance of concrete. Laboratory experiments were complemented with finite element simulation to compare experimental observations with numerical predictions, providing a more comprehensive evaluation of the proposed material.

  • Research Design

    The investigation compared conventional concrete with rubberized concrete produced using two different qualities of crumb rubber. Fine aggregate was partially replaced by treated crumb rubber at replacement levels of 5% and 10%, allowing the researchers to evaluate the influence of both rubber quality and replacement percentage on structural performance.

  • Materials

    Ordinary Portland Cement (OPC), natural river sand, river gravel, and laboratory water were used to prepare all concrete mixtures. Two types of crumb rubber obtained from waste tyres were incorporated as partial replacements for fine aggregate. Before mixing, the crumb rubber was treated using a 5% acetic acid (CH3COOH) solution to improve its interaction with the cement matrix.

  • Concrete Mixes

    Five concrete mixtures were prepared consisting of one normal concrete mix and four rubberized concrete mixes. High-quality crumb rubber and low-quality crumb rubber were each incorporated at replacement levels of 5% and 10% following a volume-based mix design with a constant water-cement ratio of 0.38. This experimental design enabled direct comparison among different rubber qualities and replacement percentages.

  • Specimen Preparation

    Concrete specimens were cast according to the selected mix proportions and cured prior to testing. Cantilever beam specimens measuring 45 × 25 × 150 mm were prepared for free vibration testing, while cylindrical specimens were produced for compressive strength and modulus of elasticity measurements following relevant ASTM procedures.

  • Free Vibration Testing

    Dynamic behaviour was evaluated using a cantilever beam subjected to an impact hammer excitation. An accelerometer positioned near the free end recorded the vibration response, while a dynamic data acquisition system collected acceleration signals for subsequent analysis. The experimental arrangement enabled measurement of free vibration characteristics under controlled laboratory conditions.

  • Signal Processing

    Acceleration responses were analysed using MATLAB Student R2020a. Fast Fourier Transform (FFT) converted the time-domain signals into the frequency domain to determine natural frequencies, while the logarithmic decrement method was applied to calculate damping ratios from the decay of vibration amplitudes during free oscillation.

  • Mechanical Testing

    Compressive strength was determined after 28 days of curing using a compression testing machine in accordance with ASTM C192. The modulus of elasticity was evaluated following ASTM C469 using strain gauges to measure longitudinal and transverse strains during loading. These tests provided information on the influence of crumb rubber on both strength and deformation behaviour.

  • Finite Element Simulation

    To validate the experimental observations, numerical simulations were performed using ANSYS Student 2024 R1. The finite element models predicted natural frequencies and load-displacement behaviour of the concrete specimens, allowing direct comparison between computational results and laboratory measurements.

  • Validation Strategy

    The study compared damping ratio, natural frequency, compressive strength, modulus of elasticity, and deformation behaviour obtained experimentally with those predicted by finite element analysis. Agreement between these two approaches strengthened confidence in the reliability of the proposed experimental methodology.

5. Key Findings

Moderate Rubber Replacement Produced the Best Balance Between Strength and Dynamic Performance

One of the most important outcomes of the study is that rubber content should not simply be maximized. Instead, the experimental results indicate that a moderate replacement level provides the most balanced engineering performance. Concrete containing 5% high-quality treated crumb rubber demonstrated the most favorable combination of mechanical properties and vibration behaviour among all mixtures investigated.

While larger rubber contents enhanced vibration damping, excessive replacement reduced several structural properties. The findings therefore suggest that careful optimization of replacement ratio is essential when designing rubberized concrete for practical engineering applications where both strength and vibration resistance are required.

Treated Crumb Rubber Significantly Increased Vibration Damping Capacity

Free vibration testing demonstrated that incorporating crumb rubber substantially improved the damping behaviour of concrete. The damping ratio increased progressively as rubber content increased, indicating that rubber particles enhanced the material's ability to dissipate vibration energy rather than allowing oscillations to continue for longer periods.

Among all mixtures, the specimen containing 10% high-quality crumb rubber exhibited the highest damping ratio. This result confirms that recycled tyre rubber can effectively improve energy absorption and vibration attenuation, making rubberized concrete attractive for structures exposed to repeated dynamic loading or impact.

High-Quality Rubber Outperformed Low-Quality Rubber

The comparison between the two rubber qualities revealed that material quality plays a critical role in determining engineering performance. Specimens produced with high-quality treated crumb rubber consistently achieved better compressive strength, higher elastic modulus, and superior dynamic characteristics than those incorporating low-quality rubber at equivalent replacement levels.

These observations indicate that successful implementation of recycled rubber concrete depends not only on replacement percentage but also on the physical properties and surface condition of the recycled rubber itself. Proper treatment and material selection therefore become essential components of sustainable concrete production.

Mechanical Strength Declined at Higher Rubber Contents

Although rubber improved damping behaviour, increasing the replacement level beyond the optimum introduced a reduction in compressive strength and stiffness. The experimental results showed that concrete containing 5% high-quality rubber achieved the highest compressive strength, whereas specimens with 10% replacement—particularly low-quality rubber—experienced noticeable reductions in structural capacity.

This behaviour reflects the reduced stiffness of rubber compared with natural mineral aggregates. As rubber occupies a larger proportion of the concrete matrix, the material becomes more deformable and capable of absorbing energy, but this improvement occurs at the expense of load-bearing performance.

Elastic Behaviour Was Influenced by Rubber Quality and Replacement Ratio

Measurements of elastic modulus showed trends similar to those observed for compressive strength. The highest modulus was recorded for concrete containing 5% high-quality crumb rubber, indicating that moderate rubber replacement did not compromise stiffness and, in some cases, slightly improved the stress-strain response.

As rubber content increased, particularly for low-quality rubber, the elastic modulus decreased while Poisson's ratio increased. These findings suggest that rubberized concrete becomes more deformable and capable of accommodating strain without sudden brittle failure, characteristics that may benefit structures subjected to cyclic loading.

Finite Element Simulation Successfully Validated Experimental Behaviour

The numerical simulations performed using ANSYS Workbench produced natural frequencies and load-displacement responses that closely matched the laboratory measurements. This agreement demonstrates that finite element modelling can accurately represent the dynamic behaviour of rubberized concrete when appropriate material properties are incorporated into the computational model.

The consistency between experimental observations and simulation results increases confidence in the proposed methodology and suggests that numerical modelling may serve as an effective engineering tool for evaluating future rubberized concrete designs before physical testing is undertaken.

6. Scientific Contribution

  • Introduces an integrated evaluation of dynamic and mechanical concrete performance. Unlike many previous investigations that focused primarily on compressive strength, this study simultaneously examines damping ratio, natural frequency, elastic modulus, and compressive strength, providing a broader understanding of rubberized concrete behaviour under dynamic loading.
  • Expands knowledge on chemically treated crumb rubber. The research demonstrates the application of 5% acetic acid (CH3COOH) treatment before incorporating crumb rubber into concrete, contributing additional evidence regarding surface treatment as a means of improving material interaction.
  • Provides comparative evaluation of rubber quality. By investigating both high-quality and low-quality crumb rubber at identical replacement levels, the study highlights the importance of recycled material quality in determining structural and dynamic performance.
  • Combines experimental investigation with numerical simulation. The agreement between laboratory testing and finite element analysis using ANSYS Workbench strengthens confidence in computational modelling as a complementary engineering tool for analysing rubberized concrete behaviour.
  • Demonstrates the relationship between damping enhancement and mechanical performance. The research clearly illustrates that increasing rubber content improves vibration energy dissipation while simultaneously influencing compressive strength and stiffness, providing valuable guidance for engineering optimization.
  • Supports sustainable material development. The study contributes to engineering knowledge by demonstrating that recycled tyre waste can serve as a functional construction material capable of improving specific dynamic properties while promoting resource efficiency.
  • Provides experimentally validated data for future engineering research. The reported measurements of damping ratio, natural frequency, compressive strength, and elastic modulus establish a useful reference for subsequent investigations into vibration-resistant concrete materials.

7. Industrial Implications

  • Encourages sustainable recycling of waste tyres. The proposed material offers an alternative pathway for utilizing discarded tyres within the construction industry, supporting waste reduction and circular resource management.
  • Supports construction subjected to dynamic loading. Improved damping characteristics make rubberized concrete potentially suitable for structures experiencing repeated vibration, impact loading, or mechanical excitation where energy dissipation is beneficial.
  • Provides guidance for concrete mixture optimization. The results indicate that moderate replacement levels of treated high-quality crumb rubber can improve dynamic performance while maintaining acceptable mechanical properties, assisting engineers in selecting appropriate mixture proportions.
  • Enhances engineering design using simulation. The successful application of ANSYS finite element analysis demonstrates that computational modelling can assist engineers in predicting vibration behaviour before full-scale implementation, reducing experimental costs and development time.
  • Contributes to resilient infrastructure. Materials capable of dissipating vibration energy more efficiently may improve structural durability in transportation facilities, industrial buildings, machine foundations, and other infrastructures exposed to cyclic loading.
  • Supports environmentally responsible material selection. Incorporating recycled tyre rubber into concrete aligns with sustainable construction initiatives that seek to reduce consumption of virgin aggregates while minimizing environmental impacts associated with waste disposal.
  • Encourages innovation in green construction materials. The study provides practical evidence that recycled materials can deliver functional engineering benefits beyond environmental sustainability, creating opportunities for broader industrial adoption of eco-friendly concrete technologies.

8. Research Limitations

  • The investigation evaluated only two crumb rubber replacement levels (5% and 10%). Additional replacement percentages could provide a more comprehensive understanding of the relationship between rubber content and engineering performance.
  • Only two categories of crumb rubber quality were investigated. Future studies may examine wider variations in particle characteristics, manufacturing methods, and surface treatments to better understand their influence on concrete behaviour.
  • The experimental programme focused primarily on free vibration behaviour and selected mechanical properties. Other performance characteristics, including long-term durability, fatigue resistance, creep, shrinkage, and environmental ageing, were outside the scope of the present study.
  • Finite element validation was limited to comparison with the laboratory specimens evaluated in this investigation. Additional validation using larger structural components or full-scale engineering applications would further strengthen confidence in the numerical modelling approach.
  • The study investigated laboratory-scale specimens under controlled testing conditions. Field performance under varying environmental conditions, traffic loading, and long-term service exposure remains to be evaluated.
  • Only one chemical surface treatment using 5% acetic acid was considered. Alternative treatment methods may produce different interfacial bonding characteristics and should be explored in future investigations.

9. Future Research Opportunities

  • Investigate a broader range of crumb rubber replacement percentages to determine the optimum balance between mechanical strength and vibration damping performance.
  • Compare different rubber surface treatment techniques to evaluate their effectiveness in improving bonding between recycled rubber particles and cement paste.
  • Assess the long-term durability of rubberized concrete under environmental exposure, including freeze-thaw cycles, chloride penetration, carbonation, and moisture variation.
  • Evaluate fatigue behaviour under repeated cyclic loading to determine the suitability of rubberized concrete for transportation and industrial infrastructure.
  • Extend the experimental programme to larger structural members such as beams, slabs, columns, and bridge components to investigate full-scale structural performance.
  • Investigate the seismic response of rubberized concrete structures to determine whether improved damping characteristics can contribute to enhanced earthquake resistance.
  • Develop advanced finite element models capable of simulating nonlinear behaviour, crack propagation, and long-term structural performance of rubberized concrete.
  • Explore the combined use of crumb rubber with supplementary cementitious materials, recycled aggregates, fibres, or other sustainable constituents to produce multifunctional green concrete.
  • Perform life-cycle assessment and economic analysis to evaluate both environmental benefits and cost-effectiveness of large-scale implementation in the construction industry.
  • Investigate the applicability of rubberized concrete for specialized engineering applications requiring high vibration resistance, including railway infrastructure, industrial machine foundations, offshore facilities, and protective structural systems.

10. Potential for Public Policy Citation (Overton)

This article demonstrates meaningful potential for citation in public policy and technical guidance because it addresses two important challenges simultaneously: sustainable waste management and the development of resilient construction materials. By investigating the engineering performance of recycled tyre rubber in concrete, the study provides experimentally supported evidence that may assist decision-makers seeking environmentally responsible alternatives for construction materials.

The findings could contribute to government initiatives promoting circular economy practices, sustainable construction, green infrastructure, and waste tyre recycling programs. Transportation agencies, environmental authorities, and public infrastructure organizations may also find the results valuable when considering material selection for structures subjected to vibration or dynamic loading.

Although the research was conducted under laboratory conditions rather than full-scale field implementation, the methodology and findings offer useful technical references for future engineering guidelines, sustainable material roadmaps, research agendas, and innovation strategies related to recycled construction materials. Consequently, the article possesses moderate potential for future citation within policy-oriented engineering literature, particularly in documents addressing sustainable construction materials and waste resource utilization.

11. Who Should Read This Paper?

  • Civil engineering researchers.
  • Construction materials scientists.
  • Structural engineers.
  • Transportation infrastructure engineers.
  • Graduate students in civil and structural engineering.
  • Researchers working on sustainable construction materials.
  • Engineers involved in vibration-resistant structural design.
  • Waste management and circular economy specialists.
  • Government agencies responsible for sustainable infrastructure development.
  • Educators teaching concrete technology, construction materials, and structural engineering.

12. Final Thoughts

This study presents a valuable contribution to sustainable construction materials by demonstrating how recycled tyre rubber can improve the vibration damping characteristics of concrete while simultaneously addressing an important environmental challenge. Rather than focusing solely on conventional mechanical performance, the research evaluates both structural and dynamic properties through a combination of laboratory experiments and finite element simulation. This integrated approach provides a more comprehensive understanding of how rubberized concrete behaves under free vibration and mechanical loading.

A notable strength of the study lies in its systematic comparison of different crumb rubber qualities and replacement levels. The findings indicate that moderate incorporation of treated high-quality crumb rubber can enhance damping performance while maintaining satisfactory compressive strength and elastic behaviour. The successful validation of experimental observations through ANSYS simulation further strengthens the reliability of the proposed methodology and demonstrates the usefulness of computational modelling in sustainable materials research.

Although additional investigations involving long-term durability, field implementation, and broader structural applications remain necessary, this research establishes an important foundation for future developments in eco-friendly concrete technology. It provides practical engineering evidence that waste materials can deliver functional structural benefits while supporting resource conservation, circular economy principles, and more sustainable construction practices.

Suggested Citation

UNP-Teknomekanik Style

Win, C. Z., Htwe, K. S. S., & Kyaw, N. M. (2025). Experimental study on damping properties of concretes under free vibration with different tyre wastes. Innovation in Engineering, 2(1), 44–56. DOI: https://doi.org/10.58712/ie.v2i1.25

APA (7th Edition)

Win, C. Z., Htwe, K. S. S., & Kyaw, N. M. (2025). Experimental study on damping properties of concretes under free vibration with different tyre wastes. Innovation in Engineering, 2(1), 44–56. https://doi.org/10.58712/ie.v2i1.25

IEEE Style

C. Z. Win, K. S. S. Htwe, and N. M. Kyaw, "Experimental study on damping properties of concretes under free vibration with different tyre wastes," Innovation in Engineering, vol. 2, no. 1, pp. 44–56, 2025. doi: 10.58712/ie.v2i1.25

Harvard Style

Win, C.Z., Htwe, K.S.S. & Kyaw, N.M., 2025. Experimental study on damping properties of concretes under free vibration with different tyre wastes. Innovation in Engineering, 2(1), pp.44–56. Available at: https://doi.org/10.58712/ie.v2i1.25

Vancouver Style

Win CZ, Htwe KSS, Kyaw NM. Experimental study on damping properties of concretes under free vibration with different tyre wastes. Innovation in Engineering. 2025;2(1):44–56. Available from: https://doi.org/10.58712/ie.v2i1.25

Chicago (Author–Date)

Win, Cho Zin, Khin Su Su Htwe, and Nyan Myint Kyaw. 2025. "Experimental Study on Damping Properties of Concretes under Free Vibration with Different Tyre Wastes." Innovation in Engineering 2 (1): 44–56. https://doi.org/10.58712/ie.v2i1.25

MLA (9th Edition)

Win, Cho Zin, et al. "Experimental Study on Damping Properties of Concretes under Free Vibration with Different Tyre Wastes." Innovation in Engineering, vol. 2, no. 1, 2025, pp. 44–56. https://doi.org/10.58712/ie.v2i1.25

Editorial Note

Editorial Note: This blog post is an independent scholarly review intended for educational and scientific communication purposes. It summarizes and discusses the published article in the author's own words while providing full attribution to the original publication, consistent with the principles of the CC BY 4.0 license.

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A comprehensive scholarly review of research investigating recycled tyre rubber concrete, damping ratio, free vibration behaviour, compressive strength, ANSYS simulation, and sustainable construction materials for resilient infrastructure applications.

SEO Keywords

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Discoverability

  • Primary Topic: Sustainable Construction Materials
  • Secondary Topic: Rubberized Concrete Technology
  • Research Area: Civil Engineering
  • Engineering Discipline: Construction Materials Engineering
  • Application Area: Structural Engineering
  • Industrial Relevance: Sustainable Infrastructure Development
  • Methodology: Experimental Testing and Finite Element Analysis
  • Key Techniques: Free Vibration Test, FFT Analysis, Logarithmic Decrement Method, ANSYS Workbench
  • SDGs:
    • SDG 9 — Industry, Innovation and Infrastructure
    • SDG 11 — Sustainable Cities and Communities
    • SDG 12 — Responsible Consumption and Production
  • Potential Audience: Researchers, engineers, graduate students, infrastructure agencies, sustainable construction practitioners, policymakers, and industry professionals.

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