PETREUS MATERIALS <ul><li>They are mainly used for two types of rocks: </li><ul><li>Compact rocks: blocks of rocks made of marble, granite, limestone... that are named as ashlars, paving stones and flagstones.
Disintegrated rocks: pieces of rocks of all sizes. The ones that are more used in construction are: </li><ul><li>Clays, little grains of rock that absorb water.
Arids, fragments that come from the disintegration of other rocks. They can be thick or flat. </li></ul></ul></ul>
BINDER MATERIALS <ul><li>These are materials used to bind together two or more other materials in mixtures. Its two principal properties are adhesion and cohesion. The more important binder materials are: </li></ul>Lime Plaster Cement
CONCRETE Concrete is a mixture between water, binder materials and arids. The more used are: -Reinforced concrete : bars have been incorporated to strengthen the concrete in tension. -Cellular concrete : produced by the addition of an air entraining to the concrete, making it less heavier and having a better acoustic and thermal isolation. -Mass concrete : its obtained from the mixture of cement, water, sand and gravel. It is used for foundations and walls. -Cyclopean concrete : made by cement, water and arids with a diameter of more than 30cm. Its used in walls and foundations .
CERAMIC MATERIALS <ul><li>These are pieces made with different types of clay. They are formed by the action of heat and subsequent cooling. For the process of making it, there are two phases: </li><ul><ul><li>Mixture and model. Machines mix clay with water. Shape is given and then, its finally cut.
Boiling. Cut material passes throughout a series of chambers with different temperatures, so it can´t break. </li></ul></ul></ul><ul><ul><li>The more used ceramic materials are: </li><ul><ul><ul><li>Bricks: pieces of boiled clay with holes in it. </li><ul><li>Solid bricks- without holes.
Plain bricks- attractive color and aspect, it has good resistance and insulation properties.
Common bricks- less resistance, coarse and rough.
Heat resistant bricks- support the heat. </li></ul></ul></ul></ul></ul></ul>
OTHER MATERIALS Metals. Such as steel, aluminium and copper. Wood. Used in roofs, doors, windows, floors... Plastic. Used as an insulator, in windows, floors... Glass. Used in windows, roofs, decorating...
CONSTRUCTION Construction is a process whisky consists of the building or assembling of an infrastructure. Building construction is the process of adding structure to real property. This process formed by several phases: <ul><li>The preparation of the area