Creating high-quality crushed stone and gravel concrete to help highway and bridge construction achieve new leaps.

In the construction of highways and bridges, the quality of concrete aggregates directly affects the smoothness, durability, and driving safety of the road surface. To meet the high requirements for particle shape and gradation of concrete aggregates in highway construction, the industry has introduced a new crushing and screening process, using the VSI series vertical shaft impact crusher as the core equipment to ensure the production of crushed stone and aggregate concrete that meets the requirements of highway and bridge pavement construction.

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As is well known, the content of needle-like and flaky particles in basalt (diabase) crushed stone is one of the key factors affecting concrete quality. Traditional cone crushers or impact crushers are no longer sufficient to meet the needs of modern highway construction. Therefore, the industry has introduced the VSI series vertical shaft impact crusher. This equipment, with its unique crushing principle and high-efficiency crushing capacity, performs excellently in crushing and processing aggregates. Through this machine's processing, the needle-like and flaky particle content of the aggregates can be controlled to within 5%, fully meeting the technical requirements for producing high-performance concrete.

The production process of highway pavement aggregates covers all stages from raw material feeding to crushing, screening, and processing. Among them, the GZD series vibrating feeder ensures uniform and continuous feeding of raw materials; the PE series deep-cavity jaw crusher, combined with the PEX heavy-duty fine jaw crusher or HPC hydraulic cone crusher, achieves coarse and medium crushing of raw materials; the PF series hard rock impact crusher further improves the crushing effect; and the YZS series vibrating screen ensures accurate grading of aggregates.

However, this is only part of the crushing and screening process. The VSI series vertical shaft impact crusher, as the core of the entire process, uses its unique impact crushing principle to ensure that aggregates are fully impacted and rubbed during the crushing process, thereby optimizing the particle shape and gradation of the aggregates. After processing by this machine, the quality of the aggregates is significantly improved, laying a solid foundation for the production of high-quality concrete.

This crushing and screening process has been widely used in the construction of many expressways, such as the Beijing-Shanghai, Beijing-Zhuhai, and Shenyang-Dalian expressways, and has gained a good reputation. Practice has proven that this process not only improves the quality of concrete but also reduces construction costs and shortens the construction period, bringing significant economic and social benefits to expressway and bridge construction.

Looking ahead, the industry will continue to dedicate itself to the research and innovation of crushed stone and aggregate concrete production processes, providing more high-quality and efficient solutions for highway and bridge construction. We believe that with the joint efforts of both parties, highway and bridge construction will usher in a brighter future!