Lecture

Construction Materials: Characteristics and Classifications

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Description

This lecture focuses on the characteristics and classifications of construction materials. It begins with an overview of the various materials used in building construction, emphasizing their physical and chemical properties. The instructor discusses the importance of selecting materials based on their resistance, thermal insulation, and cost-effectiveness. Various types of materials, including metals, ceramics, and organic substances, are categorized based on their properties such as density, thermal conductivity, and environmental impact. The lecture also highlights the significance of understanding the periodic table of elements in relation to material properties. The instructor explains the different types of chemical bonds—metallic, ionic, and covalent—and how these affect the behavior of materials in construction. Additionally, the economic aspects of material selection are addressed, including availability and pricing. The lecture concludes with a discussion on the environmental implications of material choices, stressing the need for sustainable practices in construction.

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Official source

Ontological neighbourhood

Chemistry

Organic chemistry: Organometallic chemistry

Related concepts (32)

Chemical bond

A chemical bond is a lasting attraction between atoms or ions that enables the formation of molecules, crystals, and other structures. The bond may result from the electrostatic force between oppositely charged ions as in ionic bonds, or through the sharing of electrons as in covalent bonds. The strength of chemical bonds varies considerably; there are "strong bonds" or "primary bonds" such as covalent, ionic and metallic bonds, and "weak bonds" or "secondary bonds" such as dipole–dipole interactions, the London dispersion force, and hydrogen bonding.

Periodic table

The periodic table, also known as the periodic table of the elements, arranges the chemical elements into rows ("periods") and columns ("groups"). It is an organizing icon of chemistry and is widely used in physics and other sciences. It is a depiction of the periodic law, which says that when the elements are arranged in order of their atomic numbers an approximate recurrence of their properties is evident. The table is divided into four roughly rectangular areas called blocks.

Ionic bonding

Ionic bonding is a type of chemical bonding that involves the electrostatic attraction between oppositely charged ions, or between two atoms with sharply different electronegativities, and is the primary interaction occurring in ionic compounds. It is one of the main types of bonding, along with covalent bonding and metallic bonding. Ions are atoms (or groups of atoms) with an electrostatic charge. Atoms that gain electrons make negatively charged ions (called anions). Atoms that lose electrons make positively charged ions (called cations).

Block (periodic table)

A block of the periodic table is a set of elements unified by the atomic orbitals their valence electrons or vacancies lie in. The term appears to have been first used by Charles Janet. Each block is named after its characteristic orbital: s-block, p-block, d-block, f-block and g-block. The block names (s, p, d, and f) are derived from the spectroscopic notation for the value of an electron's azimuthal quantum number: sharp (0), principal (1), diffuse (2), or fundamental (3).

Group (periodic table)

In chemistry, a group (also known as a family) is a column of elements in the periodic table of the chemical elements. There are 18 numbered groups in the periodic table; the 14 f-block columns, between groups 2 and 3, are not numbered. The elements in a group have similar physical or chemical characteristics of the outermost electron shells of their atoms (i.e., the same core charge), because most chemical properties are dominated by the orbital location of the outermost electron.

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