6. Sand is a naturally occurring granular material composed of finely divided rock and mineral particles.
7. Clay is a naturally occurring material composed primarily of fine-grained minerals
8. Binder materials binder materials Is called caking material capable of uniting fragments of one or more material and give cohesion to the set through chemical changes in its mass produce new compounds.
9.
10. Plaster:It is a mineral in form of dust used to cover walls and ceilings.
29. Metal is called the chemical elements characterized by being good conductors of heat and electricity, have high density, and are solid at normal temperatures (except mercury Metals are materials obtained from minerals that are part of the rocks . The most iportnt metals materials are: steel, aluminum and copper Metal materials
30. Phases of building construction 1.Land preparation 2.Foundation Pile 3.Structure 4.Covered 5. Enclosures 6.Flooring and cloisonne
31. Land preparation Is consist of ó smooth, demolishing, excavating, leveling the ground ... to build on it
32. Foundation pile is the placement of the elements that form the base of the building