Impact of Rubber Content on Performance of Ultra-High-Performance Rubberised Concrete (UHPRuC)

Author:

Pham Thong M.,Lee Josh,Pournasiri Emad,Li Jun,Peng Zhen,Bi Kaiming,Tran Tung M.ORCID

Abstract

AbstractThis study investigated the effect of rubber content on the mechanical characteristics of ultra-high-performance rubberised concrete (UHPRuC). The results revealed a distinctive non-linear decrease in the dry density of UHPRuC as the rubber content increased. Notably, lower rubber content led to a columnar failure mode, while higher content (≥ 20%) exhibited a mixed failure mode with vertical cracking and diagonal fracture. Importantly, the compressive strength showed minimal reduction compared to conventional concrete, presenting a remarkable 50% mitigation of strength reduction compared to previous studies. Utilising reference concrete with robust bond strength proved highly effective in preserving strength in rubberized concrete. Despite its effectiveness in mitigating compressive strength reduction, UHPC could not effectively offset flexural strength loss, which ranged from 1.5 to 3 times that of compressive strength loss. The addition of rubber aggregate in UHPC reduced the peak flexural strength, residual strength, and flexural toughness at a similar rate, while significantly increasing the vibration decaying rate. Incorporating 40% rubber in UHPRuC reduced the eCO2 up to 37%. Our findings emphasise the importance of reference concrete with good bond strength and shows that the addition of rubber aggregate in UHPC leads to reductions in strength but increases the energy-dissipating capacity.

Funder

Australian Research Council

Publisher

Springer Science and Business Media LLC

Reference59 articles.

1. Abdelmonem, A., El-Feky, M. S., Nasr, E. S. A. R., & Kohail, M. (2019). Performance of high strength concrete containing recycled rubber. Construction and Building Materials, 227, 116660.

2. ASTM C1609. (2012). Flexural performance of fiber-reinforced concrete (using beam with third-point loading). ASTM C1609/C1609M-12. ASTM International.

3. ASTM C138. (2017). C138/C138M-17a standard test method for density (unit weight), yield, and air content (gravimetric) of concrete. ASTM International.

4. ASTM C39. (2020). C39/C39M-20 standard test method for compressive strength of cylindrical concrete specimens. ASTM International.

5. Audrius, G., Henrikas, S., & Mindaugas, D. (2012). Tyre rubber additive effect on concrete mixture strength. Journal of Civil Engineering and Management, 18(3), 393–401.

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