Detonative materials are substances that can undergo a rapid chemical reaction, producing a large amount of gas and heat. This reaction typically occurs at a high speed, resulting in an explosion. Common examples include dynamite, TNT, and ANFO (ammonium nitrate fuel oil). These materials are often used in construction, mining, and military applications. The key characteristic of detonative materials is their ability to create a shock wave, which can cause significant damage to surrounding structures. They are classified based on their sensitivity, stability, and the speed at which they detonate. Proper handling and storage are crucial to ensure safety.