Lecture
This lecture covers the manufacturing steps of plaster, including crushing, screening, cooking, and hardening processes. It explains the use of retarders and accelerators, as well as the resistance and temperature considerations. Different types of plaster, such as selenite and natural gypsum, are discussed, along with their specific uses and properties. The lecture also delves into the importance of water content, crystal size, and additives in plaster production, highlighting the various applications of plaster in construction and design.