Characteristics of Class A thermal insulation materials

General inorganic thermal insulation materials:

Rock wool: also known as rock wool, fluffy short fiber made of natural rocks, minerals or industrial waste. Rock wool itself is an inorganic silicate fiber, and some organic binders or additives will be added in the process of producing products, which will slightly affect the combustion performance of products, but it is generally considered that rock wool is a non-combustible material, with Grade A.

The bulk density of rock wool board commonly used in design is 80~ 160Kg/m3, and the thermal conductivity is:

Mineral wool:

The molten metallurgical slag is made into floc by blowing or centrifugation, which has the characteristics of heat insulation, sound absorption, corrosion resistance and incombustibility, and can be used in loose state or felt shape. Because mineral wool has low acidity coefficient and contains many alkaline oxides, its physical properties are more unstable than rock wool. Mineral wool is a non-combustible material, Grade A. ..

Bulk density of mineral wool board commonly used in design: 80~ 160Kg/m3, thermal conductivity:

Glass wool: Fiberize molten glass to form fluffy cotton-like materials. Glass wool itself is made of glass. Like rock wool, although some organic components will be added in the production process, it is generally considered as a non-combustible material, which is Grade A.

Glass wool board bulk density commonly used in design: 30 ~ 40kg/m3, thermal conductivity: < 0.033W/m k.

Expanded perlite:

Expanded perlite is a white or light-colored thermal insulation material, which is made of acidic volcanic glassy lava (perlite) through crushing, screening to a certain particle size, preheating and high-temperature delayed sintering. Noncombustible material, class a.

Asphalt expanded perlite board is commonly used in design, with bulk density of 400Kg/m3 and thermal conductivity < 0.12w/m.k.

Cement expanded perlite board, bulk density: 400Kg/m3, thermal conductivity: < 0.16 w/m k.

Composite expanded vitrified beads: inorganic glassy mineral material, which is made by crushing volcanic rocks into ore sand and processing by special expansion firing method. The product is irregular spherical particles, with a cavity structure inside and a glassy and closed surface. It is a new type of inorganic thermal insulation material, non-combustible, and its grade is A. ..

Common bulk density in design: 50~ 100Kg/m3, thermal conductivity:

XB04 aerated concrete, XB05 aerated concrete:

Aerated concrete is a light porous silicate product made of siliceous materials (sand, fly ash and siliceous tailings, etc.). ) and calcareous materials (lime, cement) as the main raw materials, with gas-generating agent (aluminum powder), through the processes of stirring, pouring, pre-curing, cutting, autoclaving and curing. , which contains a large number of uniform and fine pores, is common in fly ash aerated concrete. The new type of aerated concrete (XB) has better physical properties than ordinary aerated block. Aerated concrete is incombustible, Grade A. ..

Bulk density commonly used in design: XB04 aerated concrete.

XB05 aerated concrete

Foam glass:

Inorganic nonmetallic glass material made of broken glass, foaming agent and modified additives. , evenly mixed, melted at high temperature, non-combustible material, grade A.

Common bulk density in design: 130~ 160Kg/m3, thermal conductivity:

Inorganic thermal insulation mortar for wall:

JCTA-950 inorganic thermal insulation mortar is a new type of thermal insulation and energy-saving mortar material for building interior and exterior walls. Inorganic lightweight thermal insulation particles are used as lightweight aggregate, and inorganic ash powder dry mortar composed of cementing materials, stone powder, anti-crack additives and other fillers is added. The thermal storage performance of inorganic thermal insulation mortar material thermal insulation system is better than that of organic thermal insulation material, and it is often used for thermal insulation in southern summer. Noncombustible material, class a. Thermal conductivity: 0.07

W/m.k