A composite material is basically a material that is made up of two or more independent components. These components are usually but not exclusively combined to form a composite material with similar physical or chemical properties, especially in similarity to the individual components. Composite materials are used for many things, and some of them are very common, like for instance a composite roofing material and a composite paint. However, other composite materials, like polyethylene, can be a mixture of many different materials, each with a specific purpose, like for instance a protective coating for the roofing of a building. Composite is used as a reinforcement for concrete, because it is elastic enough to conform to different shapes, while also being strong enough to withstand considerable weight.
One very important fact about composite materials is that they can be manufactured in bulk, and this makes them very popular for large-scale use. They are also very versatile and flexible, making them ideal for use in a wide variety of applications. A concrete coating can be made using concrete and asphalt, which will increase its durability and prevent it from cracking; or alternatively, composite materials can be mixed to make a material that can resist wear and tear caused by time: for instance, an asphalt roof can be made out of asphalt mixed with polyethylene, and a concrete wall can be made out of concrete and fiberglass, which will both be fire resistant. Another advantage of composite materials is that they don’t need to undergo chemical treatment to make them ready for use: in other words, you can just walk on them. This means that composite materials are suitable for a lot of outdoor applications, including patios, driveways, walkways, and many others.
There are disadvantages though, as well as advantages. Composite materials are not very efficient at conducting heat, and in order to prevent the formation of cracks, they must be treated with special paints or coatings. This can add to installation costs and also delays the lifespan of the material. Finally, since composite materials can be molded into any shape, they can also be unsuitable if you want a particular design. Nevertheless, these disadvantages are outweighed by the wide range of uses that a composite material can have.