Calcium silicate

Chemical compound

Calcium silicate is a chemical compound composed of calcium and silicon oxides. It is commonly used in the construction industry as a building material and as an insulating material. Calcium silicate is known for its high-temperature stability and low thermal conductivity, making it an ideal material for fireproofing and insulation.

Chemical Composition and Structure

Calcium silicate is represented by the chemical formula Ca₂SiO₄. It is composed of calcium oxide (CaO) and silicon dioxide (SiO₂). The compound exists in several crystalline forms, including the orthorhombic and monoclinic phases.

Calcium silicate structure

The structure of calcium silicate is characterized by a network of silicon-oxygen tetrahedra, with calcium ions occupying the interstitial spaces. This structure contributes to its stability and insulating properties.

Properties

Calcium silicate is known for its excellent thermal insulation properties. It has a low thermal conductivity, which makes it an effective barrier against heat transfer. Additionally, it is non-combustible and can withstand high temperatures without degrading, making it suitable for use in fireproofing applications.

Calcium silicate crystal structure

The material is also resistant to moisture and chemical attack, which enhances its durability in various environments. Its lightweight nature and ease of installation make it a popular choice in the construction industry.

Applications

Calcium silicate is widely used in the construction industry for its insulating and fireproofing properties. It is commonly used in the form of boards, blocks, and pipes for thermal insulation in buildings and industrial facilities.

Building Materials

Calcium silicate boards are used as cladding materials in buildings. They provide a fire-resistant barrier and help in maintaining the structural integrity of buildings during a fire.

Calcium silicate cladding

Calcium silicate cladding

Industrial Applications

In industrial settings, calcium silicate is used to insulate high-temperature equipment and piping. It is also used in the production of refractory materials, which are essential for high-temperature processes in industries such as steelmaking and glass manufacturing.

Related Pages

• Calcium oxide
• Silicon dioxide
• Thermal insulation
• Fireproofing

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