沥青灌缝胶

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沥青灌缝胶在我国道路养护市场的发展趋势
Sou Hu Cai Jing· 2025-06-06 04:52
Market Demand Growth - The demand for asphalt sealing materials in China's road maintenance market is on the rise, driven by national policies that increase funding for highway maintenance, particularly for preventive maintenance projects [3] - By the end of 2023, China's rural road mileage reached 4.6 million kilometers, with a maintenance rate of less than 60%. The penetration rate of sealing materials in low-grade county and township roads is expected to increase from 15% to 30% by 2025 [3] - In first-tier cities, health records for road surfaces are being established, mandating the use of sealing materials for cracks wider than 0.5mm, with Shanghai planning to complete sealing work on 12,000 kilometers of urban roads in 2024, leading to a market scale exceeding 200 million yuan [3] Technological Innovation and Product Upgrades - The integration of laser positioning sealing machines with IoT monitoring systems has improved construction efficiency by 40% and reduced labor costs by 30% [6] - The durability of sealing materials has been enhanced through SBS/SBR composite modification technology, achieving low-temperature crack resistance at -40°C and high-temperature stability at 120°C, extending service life to over 5 years [6] - New generation rubber asphalt sealing materials have reduced VOC emissions by 60%, aligning with green construction requirements under carbon neutrality goals [6] Regional Market Differentiation - The eastern coastal regions focus on high-performance products, such as self-leveling sealing materials, to meet high-standard maintenance needs [8] - The central and western regions prioritize cost-effectiveness, favoring emulsified asphalt-based sealing materials to meet budget constraints [8] Market Competition Landscape Changes - Large enterprises dominate the market due to their brand advantages, technical strength, and market channels [10] - Small and medium-sized enterprises are finding ways to break through by offering customized products or services tailored to specific regional or niche market needs [10]