Overview of building insulation materials and detailed explanation of cement foam board
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Update time : 2024-07-30 08:58:20
What types of building insulation materials are there?
Common building insulation materials include extruded board, polystyrene board, rock wool board, polyurethane foam material, cement foam board, foam glass board, etc.
1. Extruded board The extruded board is a closed-cell foam structure with low thermal conductivity and good thermal insulation performance. It is used in insulation systems such as building exterior walls, roofs, and floor heating.
2. Polystyrene board Graphite polystyrene board of polystyrene board is a commonly used insulation material in the construction field. Graphite polystyrene board belongs to B1 grade, is self-extinguishing when away from fire, and is suitable for wall and roof insulation systems of high-rise buildings.
Rock wool board
3. Rock wool board The main raw materials of rock wool board are natural minerals such as basalt and dolomite. The fiber-structured rock wool not only has low thermal conductivity but also has good sound absorption and noise reduction properties. Rock wool belongs to Class A insulation material and is suitable for insulation systems of various buildings.
4. Polyurethane foam material Polyurethane foam materials are mainly used in building systems for polyurethane boards and polyurethane spraying. Polyurethane boards are mainly used in insulation systems for building exterior walls and roofs. Polyurethane spraying is more widely used. It belongs to spraying materials and is suitable for various irregular areas. It is simple and convenient to construct and has a good insulation effect.
5. Cement foam board A cement foam board is a cement-based lightweight porous inorganic fireproof insulation board made of foam and cement prepared by a foaming agent, which is mixed and poured into shape and then cured. Its combustion performance is A1 level and it is completely non-combustible.
6. Foam glass board Foam glass board is an inorganic insulation material made of broken glass, foaming agent, modified additives foaming promoter, etc., which are finely crushed and evenly mixed, and then melted and foamed at high temperature and annealed. The foam ratio has the properties of low thermal conductivity, sound insulation, and noise reduction. It is suitable for building exterior wall insulation systems.
Cement foam board is a lightweight building material, usually used for thermal insulation in buildings. It is made of cement-based materials mixed with foaming agents through a special process and has a large number of closed pore structures, which makes this material have good thermal insulation, sound insulation, and fire resistance.
Cement foam board
The main materials of cement foam board
The materials required to make cement foam board mainly include: Cement: As the main cementitious material, ordinary Portland cement, slag Portland cement, etc. are commonly used. Water: used to mix with cement and other ingredients.
Foaming agent: used to produce a large number of tiny bubbles, reduce density, and provide the required physical properties. Other additives, such as water reducers, thickeners, stabilizers, etc., improve the workability and final performance of the material.
Auxiliary materials: sometimes fine aggregates (such as sand), fibers (such as glass fibers), etc., are added to increase strength or improve certain properties.
The role of cement foaming agent
The cement foaming agent is a surfactant or surface-active substance, and its main functions are as follows:
Reducing the surface tension of liquid: By reducing the surface tension of water, it is easier to introduce air and form foam. Produce stable foam: Foaming agents are able to produce a large amount of uniform and stable foam, which forms closed pores in the cement paste. Improve workability: Foaming agents help improve the fluidity and permeability of cement paste, making it easier to construct. Improve physical properties: By introducing a large number of pores, the density of cement foam board can be reduced, and its thermal insulation performance can be improved.
Brief description of the production process
Mix cement, water, and other additives together.
Add a foaming agent and use special equipment (such as a foaming machine) to introduce air into the mixture to produce a large amount of foam.
The mixture is poured into the mold and goes through a curing process until it hardens to form the desired shape. After the curing is completed, demould and the finished product are subjected to necessary processing, such as cutting, etc.
Application field
Due to its unique properties, cement foam board is widely used in building wall, roof, and ground insulation systems. It can also be used in sound insulation walls, partition walls, and other occasions. They not only have good thermal insulation performance but also can improve the overall energy-saving effect of the building.
Supplier
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