**Characteristics and Detection of Expansion Agent** The expansion agent is a non-toxic, white powdery substance that reacts under pressure without producing toxic gases or vibrations. It can withstand pressures up to 3,000 tons per square meter before it begins to expand and crack materials. This makes it ideal for controlled demolition and concrete breaking in various construction settings. **Applications of Expansion Agent** This product is widely used in mining operations, foundation work, trench excavation, tunneling, underground engineering, bridge construction, sculpture design, dock projects, and reinforced concrete demolition. Whether you're working on large-scale infrastructure or precision-breaking tasks, the expansion agent provides a safe and efficient solution. For more information, visit our company at **http://**. **How to Use the Expansion Agent** To achieve optimal results, the hole spacing should be carefully planned based on the material being broken—typically between 15–30 cm. Mix the expansion powder with 30–35% water by weight, stir thoroughly, and pour the thick slurry directly into the drilled holes without sealing them. Cracks usually appear within 4–7 hours. If no cracking occurs after 20 hours, it may indicate that the hole spacing was too wide. In such cases, reapply the agent along the drilling line for better results. **Important Notes When Using Expansion Agent** 1. The product comes in different models tailored for specific engineering conditions and seasonal temperatures. Choose the appropriate type based on your project requirements. Our team is always available to provide technical support. 2. In hot weather, use cold water (around 4°C) to slow down the reaction and prevent excessive expansion or spraying. 3. Always wear safety goggles during installation to protect your eyes from potential splashes. If contact occurs, rinse immediately with water and vinegar. **Testing the Expansion Agent** When testing the setting time of the expansion agent, the quantity of reference cement and expansion agent must be calculated based on the dosage. Typically, the manufacturer recommends a dosage of 10%. For example, if the total weight is 500g, then 10% would be 50g of expansion agent and 450g of reference cement. The water content is determined using the standard consistency test method. The test rod should freely sink into the mixture and stop 1mm above the bottom of the container. Conduct multiple trials until the correct consistency is achieved. For compressive strength testing, prepare 40×40×160 mm specimens, with six samples tested at 7 and 28 days. After flexural testing, the broken pieces are used for compression tests. All properties—setting time, compressive strength, and expansion ratio—are measured when the expansion is limited. Whether you're an experienced contractor or new to the field, the expansion agent offers a reliable, eco-friendly alternative to traditional blasting methods. Contact us today to learn more about how we can help your next project succeed.
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