Thermogravimetric analysis (TGA) is an analytical technique used to measure the change in weight of a material as it is heated, cooled, or held at a constant temperature. In the field of cement and concrete, TGA provides invaluable insights into the composition and thermal stability of materials by quantifying weight losses from dehydration, dehydroxylation, and decomposition of hydrates or other compounds within the material. This information is crucial for understanding the chemistry of cement hydration, the presence of deleterious components like sulfates, and the effects of aging and environmental exposure on concrete.