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**Application Characteristics of the Expansion Agent**
The expansion agent offers several unique advantages that make it a preferred choice in modern construction. First, it enables **self-waterproofing of the structure**, eliminating the need for external waterproofing measures and significantly improving economic efficiency by up to 2/3.
Second, it allows for the **removal of the post-pouring belt** in long cast structures. For example, in underground engineering, a 60-meter-long structure can be built without a post-pouring belt. For structures longer than 60 meters, the ZY expansion agent and reinforcement belt can replace the traditional post-pouring belt, reducing costs and shortening the overall construction period.
Third, the ZY expansion agent helps **control temperature-induced cracks** in large-volume concrete. It relaxes the temperature control requirements, so there is usually no need for cooling aggregates or embedded cooling pipes—two common traditional methods. This results in significant cost savings during the construction process.
Fourth, the ZY product is ideal for **on-site roof casting**. Its application in roof structures provides a simple design, low cost, and excellent waterproofing durability. As a result, it has been widely adopted in various construction projects.
In addition, the use of the expansion agent enhances the **overall performance and longevity** of concrete structures. It improves crack resistance, increases density, and ensures better long-term stability. Whether in underground projects, high-rise buildings, or industrial facilities, the ZY expansion agent proves to be a reliable and cost-effective solution.
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