2. BUILDING MATERIALS: A building material is a raw material or more often a manufactured product used to consteuct buildings.
3. TYPES OF BUILDING MATERIALS: There are several types of building materials: -Stony materials. -Binder materials. -Concrete. -Ceramic materials. -Other materials.
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5. Disintegrated Rocks: son fragmentos de piedra de tamaño variable. There are several types, such as clays and arids.
6. BINDER MATERIALS: A binder is an ingredient used to bind together two or more other materials in mixtures . Its two principal properties are adhesion and cohesion .
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9. METAL MATERIALS: A metal is a chemical element that is a good conductor of both electricity and heat and forms cations and ionic bonds with non-metals .
10. WOOD MATERIALS: Wood is an organic material, a natural composite of cellulose fibers embedded in a matrix of lignin which resists compression.
11. WOOD MATERIALS: People have used wood for millennia for many purposes, primarily as a fuel or as a construction material for making houses, tools, weapons, furniture, packaging, artworks, and paper.
12. PLASTIC MATERIALS: Plastic is the general common term for a wide range of synthetic or semisynthetic organic amorphous solid materials used in the manufacture of industrial products.
13. GLASS MATERIALS: A glass is an amorphous solid material. Glasses are typically brittle, and often optically transparent. Glass is commonly used for windows,bottles, modern hard drives and eyewear.
