A common type of igneous rock, granite is intrusive in nature and have a granular texture. Granites usually have high amounts of quartz and feldspar (alkali feldspar), mica and certain other amphibole minerals are present in small qualities. One of the oldest standing structures in the world,...
For acoustic plaster, gypsum is mixed with cement mortar. This finish is applied in two coats. The thickness of each of these coats is 6 mm. When gypsum and mortar are mixed, the plaster then forms bubbles, which can absorb sound. It is known as acoustics plaster because of its qualitie...
In 3D printing, the final product can either be inflexible or flexible, that is, capable of retaining shape once the load is removed from it [32]. In 4D printing, the smart material changes itself under exposure to stimuli. The smart structure can be of two types—the rigid materials can...