Surface-Treated Rubberized Mortar

4.2× damping ratio

Synergistic surface treatment and silica fume significantly enhance damping while maintaining mechanical integrity, enabling integrated vibration control and load-bearing performance.

Li, Weihao · Ruizhe, Cheng · Liu, Rentai · Zhu, Zhijing · Chen, Mengjun · Yilin, Du · Kaipeng, Zhuang · Yuanhao, Xu

Construction and Building Materials 2026

Specifications

Damping ratio improvement

{'zh': '4.2', 'en': '4.2'} ×

Harmful pores proportion

{'zh': '13.90', 'en': '13.90'} %

Advantages

Damping boosted 4.2×

Synergistic energy dissipation via rubber particle elastic deformation, interfacial frictional sliding, and pore-mediated scattering yields a damping ratio 4.2 times that of plain mortar.

Harmful pores slashed

Surface treatment and silica fume densify the interfacial transition zone, reducing harmful pores (>200 nm) to 13.90% and improving durability.

Mechanical integrity retained

Surface roughening and silica fume's micro-filling and secondary hydration maintain mechanical properties while enhancing damping.

Applications

• Vibration damping materials：Replaces conventional damping materials for vibration and noise reduction in building floors and walls.
• Seismic retrofitting：Applied as a strengthening layer to increase structural damping and dissipate seismic energy.
• Mechanical damping components：Used to fabricate non-structural damping components such as machine bases and isolation pads.