门头沟京昆线除雪作业。 房山区京周路过街天桥人工除雪 据气象部门预报，1月17日傍晚至18日白天，本市将出现一次降雪天气过程。其中，平原地区以小雪为 主，预计积雪深度1-2厘米；部分山区为小到中雪，预计积雪深度2-5厘米。 今早，雪花簌簌飘落，给房山京周路披上了一层薄纱。天刚蒙蒙亮，几抹亮眼的橙黄色身影便出现在过 街天桥上，养护工人们手握扫把，迎着寒风，一下又一下地清扫着桥面的积雪，为行人扫出一条安全通 畅的路。 为有效应对此次降雪，确保管养道路安全畅通，北京建工养护集团提前部署、提级应对，全面开展降雪 应对工作。52支扫雪铲冰队伍，2400余人备勤值守，1500余台套除雪设备提前调试准备到位。同时，优 化除雪作业单元，划分铲冰除雪作业单元562个，"定段、定人、定设备"，实行小循环、高频次、精准 化、差异化编组作业。 目前房山、门头沟出现降雪，养护集团已出动除雪人员301人、机械设备202台套。 来源：北京日报客户端 ...

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]