Materials science in construction : an introduction by Arshad Ahmed, John Sturges

By Arshad Ahmed, John Sturges

Materials technology in Construction explains the technology at the back of the houses and behavior of construction's such a lot primary fabrics (metals, cement and urban, polymers, trees, bricks and blocks, glass and plaster). particularly, the serious components affecting in situ fabrics are tested, comparable to deterioration and the behaviour and sturdiness of fabrics lower than functionality. An available, easy-to-follow technique makes this ebook perfect for all degree and undergraduate scholars on construction-related classes taking a module in development materials.

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74. This means that 74 per cent of the unit cell volume is taken up by the constituent atoms. We can see from the APF figures that FCC metals are more close-packed than BCC metals. 3 Hexagonal close-packed This is the third common structure type, and the common metals conforming to this type include zinc, magnesium, cobalt and cadmium. 74, so it is a truly close-packed structure. 5 Polymorphism and allotropy Polymorphism of a solid material refers to its ability to exist in more than one form of crystal structure.

Construction also uses a lot of timber, a traditional construction material which has been used for centuries. We often lose sight of the fact that timber is a ‘smart’ material when it is growing as part of a tree. In a growing tree, timber can sense where compressive stresses are increasing due to weight increase brought about by the growth of new timber, and is able to respond by increasing the size of branches that are bearing the increased weight. So far engineers have not been able to produce such a remarkable material.

Metals also offer us tensile strength, which few of the traditional materials like natural stone or fired clay possess. Because of this remarkable combination of tensile strength and ductility, we can create all types of buildings and other structures that were not possible before the Industrial Revolution. Metals also offer fracture toughness, a resistance to brittle fracture not found in natural stone, clay brick or concrete, and this makes them indispensable in the design and construction of many large buildings.

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