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Due to the fact that some highway guardrail are used outdoors, it is inevitable that they will be exposed to wind and rain, so corrosion or damage is relatively normal, and their service life may be shorter than indoor guardrails.The service life of highway guardrail is determined by different materials, generally including galvanization, aluminum plating, post galvanization spray coating, and dip coating, with a service life ranging from five to ten years. No matter what material the highway guardrail is made of, it has a service life.

The corrosion resistance mechanism of the hot-dip galvanized W beam layer of the corrugated guardrail board, and the hot-dip galvanized layer of the base material of the corrugated guardrail board have three major functions.(1) Isolation and protection.Although zinc is highly reactive to metals, corrosion develops slowly in the atmosphereand in near-neutral water.

The highway guardrail board is the foundation for ensuring the overall size and appearance quality of the anti-collision guardrail. From the beginning of template production, high standards and strict requirements must be met. In the past, anti-collision guardrail templates were generally made of wooden formwork, wrapped with galvanized iron sheet or cold-rolled black iron sheet.

1. Surface roughness of galvanized steel: When iron zinc alloy is used excessively or unevenly distributed, it can develop and affect the roughness of the surface of the highway guardrail. There may be some white rust on the surface. Highway guardrail  with white rust can make people feel severely corroded. White powder is not zinc layer rust, only needs weak acid treatment and cleaning.2.

The most common materials used in highway guardrail processing are steel, aluminum alloy, and galvanized steel plate.Steel plays an important role in the manufacturing of highway guardrail due to its high strength and durability. It can effectively prevent vehicle collisions and has good anti-corrosion performance, which can extend the service life of guardrails.Aluminum alloy is another common material that is highly favored due to its lightweight, high strength, and excellent corrosion resistance.

The guardrail beam is mainly used for isolation and protection of highway lanes. The utility model relates to a combined type corrugated plate movable steel guardrail used at the opening of the central dividing strip of the highway. The guardrail is composed of two corrugated steel guardrail boards and two columns fixed and clamped between them, and the two columns are fixed and clamped between the two corrugated steel guardrail boards.

1. Ordinary w guardrail beamThe ordinary corrugated guardrail is the most basic corrugated guardrail, which is made up of multiple W-shaped steel plates and is shaped into a wave shape. This guardrail has the advantages of easy installation and low cost, and is widely used on both sides of highways. However, its protective performance is relatively poor and is not suitable for highways with fast speeds.2. Highway guardrail beamThe highway guardrail beam is improved on the basis of the ordinary corrugated guardrail.

The highway guardrail is a continuous structure, mainly composed of corrugated steel guardrail boards. Each two corrugated steel highway guardrail is fixed on the highway guardrail columns by splicing to form a whole. This structure composed of corrugated guardrail plates not only has a beautiful appearance, but also is convenient to use. For example, simply inserting the column into the corrugated guardrail plate can play a good isolation role, which is convenient and fast. So why do highway guardrail uses corrugated guardrails among numerous guardrails?

Firstly, the material of the guardrail beam has a significant impact on its lifespan. For example, hot-dip galvanized national standard guardrails have a relatively long lifespan due to their good anti-corrosion performance. In addition, the surface treatment method, anti-corrosion performance and anti-aging performance of the fence will also affect its service life.

The purpose of using corrugated highway guardrail is to separate two lanes, which is a very intuitive separation effect and also provides protection. The use of highway guardrail will make the road safer. If a car accidentally collides, it is less likely to be damaged and provides a buffer to prevent it from directly entering the roadside ditch. It is important to maintain personal safety for both the driver and passengers inside the car Therefore, we must not underestimate the role of corrugated guardrails on highways.We also need to know the raw materials for corrugated highway guardrail.