EXPANDAG™ is a professional-grade Soundless Cracking Agent (SCA) and non-explosive demolition agent designed for controlled rock splitting, concrete cracking, and mining excavation projects worldwide.

The product is based on a controlled hydration reaction that converts refined Calcium Oxide into Calcium Hydroxide [Ca(OH)₂]. When confined inside drilled boreholes, this reaction generates a sustained expansive pressure exceeding 100 MPa (14,500 PSI), enabling safe and vibration-free demolition.

According to industry practices for non-explosive rock cracking agents, calcium hydroxide expansion remains the most reliable method for splitting high-density materials such as granite, marble, limestone, and reinforced concrete without the risks associated with traditional blasting.

Technical Features & Performance Comparison

• Proven Expansion Performance: Generates over 100 MPa expansive pressure, offering a direct and cost-effective alternative to Dexpan, Sino-Crack, and similar HSCA products.
• Environmentally Safe Reaction: The final byproduct is primarily calcium hydroxide, non-toxic and chemically stable, with properties similar to conventional cementitious mortar.
• Vibration-Free Demolition: Ideal for mining and construction projects near urban foundations, tunnels, and historical structures.

Product Grade Selection by Ambient Temperature

EXPANDAG Soundless Cracking Agent is available in multiple formula grades to ensure stable expansion performance under different climate conditions worldwide.