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点击图片查看原图道路护栏网发展创新：近年来，随着国内高速公路建设的飞速发展，安全护栏市场不断扩大。但由于该产品在我国的生产和使用时间不足十年，产品标准颁布仅五六年，国家标准颁布刚两年，生产厂家对该产品的性能、技术参数、生产工艺掌握各不相同，致使这一产品的质量良莠不齐。有的路段由于采用了防腐工艺处理不当的护栏产品，少则一两年时间，护栏便锈迹斑斑，不仅影响了高速公路的视觉效果，也大大缩短了护栏的有效使用期，同时也增加了维护成本。
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In China, painting protection was usually used in the early stage, and then hot-dip galvanizing was gradually adopted. Now hot-dip galvanizing is still widely used for protection. Guardrails are large-scale permanent facilities for outdoor use. Different protection systems should be selected for different atmospheric environments. The newly issued national standard GB / t18226-2000 technical conditions for corrosion protection of steel components of expressway traffic engineering pides the protection of guardrail products into four categories: galvanizing, aluminizing, plastic coating after galvanizing (aluminum) and plastic coating. In rural areas and areas with less serious pollution, separate hot-dip galvanized layer protection or separate plastic sprayed protective guardrail plate can be used. In heavy industrial areas or coastal urban areas, especially in areas with acid rain, ordinary hot-dip galvanized or plastic sprayed single coating guardrail plate may lose its effectiveness before its service life, resulting in a significant increase in the maintenance cost of guardrail. For hot-dip aluminum guardrail, its corrosion resistance is better than ordinary hot-dip zinc guardrail, but its application scope is not very wide due to its process, technology, cost and impact on the environment. The protection system of hot dip aluminum + plastic spraying is an uneconomical method compared with the protection system of hot dip zinc + plastic spraying. The double protection system of galvanized sheet + plastic spraying can achieve good anti-corrosion effect in heavily polluted areas, especially in acid rain areas, greatly prolong the service life, and is the most durable protection method.蓝白市政道路护栏 惠州城市马路机非隔离栏 中山木棉花护栏