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In February 2026, a specialized concrete rapid-repair material for cold regions—jointly developed by a Chinese building materials technology enterprise and the Russian Federal Road Research Institute—was officially deployed in bridge and pavement repair projects along the M51 Federal Highway in Russia’s Siberia region, marking yet another tangible achievement in the field of China-Russia infrastructure cooperation.
The material deployed in this project is an ultra-early-strength, high-performance cement-based repair mortar. Specifically engineered for the extreme climatic conditions of Russia’s cold regions, it allows for normal construction operations in temperatures as low as -10°C. It achieves the requisite strength for reopening to traffic within just two hours and possesses core characteristics such as non-shrinkage, high abrasion resistance, and freeze-thaw durability—making it perfectly suited to the operational demands of the Siberian region, characterized by long winters and significant diurnal temperature fluctuations. Previously, concrete repair efforts in this region were plagued by persistent challenges, including limited construction windows, insufficient material weather resistance, and short post-repair service lifespans; conventional repair materials would typically suffer secondary damage within just one to two years of application.
To date, this material has been successfully utilized to repair the expansion joints of 32 bridges and over 120 pavement potholes along this road section. Testing has confirmed that all performance indicators meet Russian highway construction standards. Moving forward, its application will be gradually expanded to transportation infrastructure maintenance projects throughout the Russian Far East, thereby contributing to the quality enhancement and upgrading of infrastructure along the Belt and Road.
