Silica mortar

Description of silica mortar

Silica refractory mortar is a refractory material based on the mineral silica. It is designed for use in high-temperature environments where conventional materials cannot withstand extreme temperatures. Silica refractory mortar consists of a mixture of silica (quartzite, Dinas slag), 15-10% fire clay, and a plasticizer.

Grades of dynasic binder

Mark	Name and characterization
MD 94.	Dynasic binder with SiO2 mass fraction not less than 94% for units with operating temperatures up to 1650°C
CBM 92.	Dynasic binder with SiO2 mass fraction not less than 92% for units with operating temperatures up to 1550°C
CBM 90.	Dynasic binder with SiO2 mass fraction not less than 90% for units with operating temperatures up to 1500°C

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Characteristics of silica refractory mortar

Name of indicators	MD90.	MD92.	MD94.
Mass fraction per calcined substance, %:
SiO2, not less	90	92	94
Al2O3 , within	3,5-6,0	2,5-4,0	2,0-3,5
Na2CO3, within the limits	-	-	0,10-0,15
Lignosulfonates (LSTs), within the range of	0,10-0,25	0,10-0,25	0,07-0,12
CaCl2, within	2,0-2,8	2,0-2,8	-
Change in mass on ignition, %, less than	1,8-3,5	1,5-2,8	1,1
Mass fraction of moisture, %, less than	5	5	5
Grain composition, %
through the net:
No. 2, not less than	100	100	100
No. 1, not less than	97	97	97
No. 02, within	68-85	65-85	68-85
No. 009, within	45-65	45-65	45-65

Advantages of silica refractory mortar

Excellent resistance to high temperatures

Silica minerals have high melting point, high abrasion resistance, etc., which makes them stable and strong at high temperature, so silica refractory mortar has excellent resistance to high temperature.

High thermal stability

Silica mortar can withstand extremely high temperatures without deformation or fracture. It can withstand extreme thermal conditions and maintain its mechanical properties at high temperatures.

Excellent chemical resistance

Silica mortar is resistant to aggressive chemicals such as acids and alkalis. It does not react with most chemical compounds, making it suitable for use in the chemical industry and other environments where chemical agents are present.

Low thermal conductivity

Silica mortar has low thermal conductivity, which allows it to effectively retain heat inside furnaces and other systems. This helps to ensure even heat distribution and maintain stable working conditions.

Durability and resistance to wear and tear

Silica mortar is a strong and wear-resistant material. It can withstand mechanical loads and retain its properties even under prolonged use and repeated heating.

Variety of shapes and sizes

Silica mortar can be presented in various forms such as bricks, blocks, slabs or moldings. This allows it to be adapted to different constructions and project requirements.

Refractoriness

Silica mortar is a refractory material, which means its ability to retain its properties and structure at high temperatures. It prevents the spread of fire and helps to control thermal processes.

Application of Silica mortar

Metallurgical industry

Silica mortar is used for construction and lining of furnaces, pits, ladles and other thermal installations in metallurgical plants. It provides refractoriness and high thermal stability under conditions of high temperatures and chemical aggression.

Glass and ceramics industry

Silica mortar is used for the manufacture of furnaces, furnace segments, facing slabs and moldings used in glass melting and ceramic production. It is able to withstand the high temperatures and chemical activity of glass and ceramic raw materials.

Chemical industry

Silica mortar is used in the chemical industry for the construction of reactors, furnaces, column linings and other equipment where chemical reactions occur at high temperatures. It has high chemical resistance and can withstand aggressive environments.

Energy

Silica mortar is used in the energy industry to construct boilers, burners and other systems operating at high temperatures. It provides fire resistance and thermal insulation, contributing to efficient heat generation and transfer.

Mining industry

Silica mortar is used for the construction of furnaces and pits used in the smelting and roasting processes of ores and other materials. It is able to withstand high temperatures and chemical aggression, making it suitable for such conditions.

Storage of Silica mortar

Silica mortar is carried out in covered warehouses, bunkers or containers in conditions that exclude moistening and clogging with materials of other composition.

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