In recent years, the application of concrete wet spraying trucks has rapidly developed and received widespread attention in various engineering projects. The reasons for its rapid development can be mainly attributed to the following five aspects:

　　1. Significant advantages of wet spraying technology

　　Wet spraying technology has demonstrated numerous advantages during the construction process. Compared with traditional dry spraying techniques, wet spraying technology has four significant advantages. Firstly, wet spraying technology can significantly reduce the dust concentration on construction sites, effectively eliminating potential hazards to workers' health. Secondly, the production efficiency of the concrete wet spraying trolley is extremely high, capable of spraying 10 to 30 cubic meters of concrete per hour, greatly accelerating the construction progress. In addition, the rebound rate of wet spraying technology is relatively low, which can reduce the rebound rate of concrete to below 10%, reduce material waste, and save costs. Finally, the wet spraying process, due to its easily controllable water cement ratio, can significantly improve the uniformity of concrete and ensure higher construction quality.

　　2. Strict environmental requirements and policy support

　　With the increasingly strict domestic environmental regulations, the demand for mechanized construction is becoming more urgent. National policies and relevant industry standards clearly encourage and support the use of wet spraying technology, which not only meets environmental requirements but also promotes the improvement of construction efficiency and quality. Therefore, the application of wet spray trucks has been strongly promoted at the policy level and has become the preferred equipment for many engineering projects.

　　3. Rising labor costs drive mechanization

　　In recent years, labor costs have continued to rise, and traditional manual construction methods have gradually lost their advantages in terms of cost and efficiency. In contrast, the mechanized operation method of concrete wet spraying trolley not only improves construction efficiency, usually more than twice that of manual labor, but also reduces dependence on labor, reduces personnel risks and management costs. Therefore, using wet spray trucks for construction has become a wise choice for more and more projects.

　　4. Technological progress and market maturity of domestic manufacturers

　　Domestic concrete wet spraying truck manufacturers have made significant progress in research and technological innovation. With the gradual maturity of product technology, standardized and serialized wet spray truck products have emerged in the market. These technological advancements not only improve the reliability and stability of equipment, but also make products more competitive in the market and widely favored by customers.

　　5. A comprehensive after-sales service system

　　The continuous improvement of the after-sales service system provides strong support for the widespread application of concrete wet spraying trucks. Manufacturers provide comprehensive operational training, technical support, and maintenance services to make equipment use and maintenance more convenient, effectively extending the service life of the equipment. This comprehensive after-sales service further promotes the popularization and application of wet spray trucks in various construction projects.

　　The concrete wet spraying trolley, with its technological advantages, policy support, cost-effectiveness, technological progress, and comprehensive after-sales service, has achieved rapid development in modern engineering construction and gradually become an indispensable key equipment in tunnel construction and other fields.