Monolithic Refractory Products
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Monolithic Refractory

Monolithic refractories, also known as unshaped refractories, are refractories composed of a well-graded mixture of granular and powdered materials along with a binder. They are directly used without shaping or firing and can be in the form of slurries, pastes, or loose powders. These materials can form seamless structures, hence termed as monolithic.

Monolithic refractories come in different forms like refractory castables, plastic refractories, ramming mass, gunning mix, refractory mortar, coatings, and refractory cement, tailored to specific application methods and process requirements.

Density: lightweight or heavyweight

Installation: Easy

Construction: without joints

Adaptability: various methods

Chemical Resistance: harsh chemical environments

Refractory Cement

Refractory cement, also known as aluminate cement, is a type of high-temperature resistant cement.
Refractory cement exhibits high-temperature resistance and is generally used for construction, industrial equipment, and lining materials for kilns in high-temperature environments. Refractory cement has a high alumina content, not less than 50%, and a refractoriness not less than 1580 degrees Celsius. It possesses high strength, abrasion resistance, and can maintain good resistance to chemical erosion and physical properties at high temperatures.


Fineness(d50/um): 5-13

Compressive Strength (72hrs)/MPa: 40-82

Max Service Temperature: (℃): 1300-1800

Sample: testing of sample is available

Products of KERUI Refractory Cement

Refractory Cement CA50
CA50 Refractory Cement contains an aluminum content ranging between 50-60%. It is the most common high-temperature cement and is available in various grades, such as A600, A700, and A900.
Refractory Cement CA70
CA70 refractory cement has an aluminum content between 68-77%. It is white in color and is referred to as pure calcium aluminate cement.
Refractory Cement CA80
CA80 refractory cement contains an aluminum content of 77% or higher. Similar to CA70, it is also white and classified as pure calcium aluminate cement.

Refractory Castable/Concrete

Refractory castable is a mixture composed of refractory aggregates, binders, and additives, combined with water or liquid binders. It is classified into different types according to construction methods, such as vibratable castable, self-flow castable, refractory spray coating, ramming material, and refractory prefabricated parts. It is mainly used for lining high-temperature kilns.

Al2O3%: 40-95

Bulk Density: (g/cm³): 1.8-2.5

Compressive Strength: (MPa): 20-150

Max Service Temperature: (℃): 1300-1800

Sample: testing of sample is available

Products of KERUI Refractory Castable/Concrete

Dense Castable
Dense castable is a high-strength, high-density refractory material used for lining furnaces, kilns, and boilers. It is designed to withstand extreme temperatures, thermal shock, and abrasion.
Insulation Castable
Insulation castable is a lightweight refractory material that provides thermal insulation in high-temperature applications. It reduces heat loss and maintains structural integrity under thermal cycling
Ramming Mass
Ramming mass is a refractory material used to line induction furnaces. It is applied by ramming to form a dense lining that resists thermal shock, erosion, and chemical attack.
Gunning Mix
Gunning mix is a refractory material applied using a gunning machine to spray onto surfaces. It is used for repairing and lining furnaces, kilns, and boilers, offering quick installation and durability.
Plastic Refractory
Plastic refractory is a moldable material used in complex shapes and repairs where bricks cannot be installed. It offers high thermal stability and resistance to slag and metal penetration.
Castable Blcok(Pre-cast)
Castable block, or pre-cast block, is a pre-formed refractory component made from castable materials. It ensures uniform quality, reduces installation time, and is ideal for high-temperature environments like furnace linings.

Refractory Mortar

Refractory mortar, also known as jointing material, is primarily used as a bonding agent for kiln bricks or as a repair material for furnace linings. It serves as both the bonding material between refractory bricks and the filling material for brick joints. It can also be sprayed to form a tight seal as part of the insulation layer. It possesses properties such as low shrinkage and corrosion resistance.

Al2O3%: 40-78

Fe203%: 0.7-1.2

Refractoriness Underload/℃:1320-1600

Classification Temperature/℃:1300-1600

Sample: testing of sample is available

Products of KERUI Refractory Mortar

Fire Clay Mortar
Fire clay mortar bonds firebricks in high-temperature applications like furnaces and kilns. It offers excellent adhesion, thermal stability, and resistance to thermal shock.
High Alumina Mortar
High alumina mortar is used for bonding high alumina bricks. It provides superior resistance to high temperatures, chemical corrosion, and mechanical wear, ideal for industrial furnaces and kilns.
Phosphate Mortar
Phosphate mortar contains phosphate binders, offering strong bonding and chemical resistance. It is used in high-temperature environments, especially where acid corrosion is a concern.
Magnesia Mortar
Magnesia mortar bonds magnesia bricks and is resistant to high temperatures and basic slags. It is ideal for steel industry applications, such as lining furnaces and ladles.

Applications Of Kerui Refractory Castable

Refractory castable is a special material with high-temperature resistance, corrosion resistance, and wear resistance. It can protect equipment from high temperature, corrosion, and wear, ensuring the normal operation of production equipment and the safety of personnel and property.

Cement & Lime

Cement & Lime, Refractory castables are mainly used in cement plants including the thermal insulation lining; Refractory castables are usually used in lime rotary kiln preheaters and front and rear kiln mouths.

Metallurgical Industry

refractory castables are mainly used in high-temperature furnaces, such as steel smelting furnaces, aluminum electrolytic cells, glass melting furnaces, etc.

Chemical Industry

refractory castables are mainly used for the lining of various chemical reactors and storage tanks.

Power Station

refractory castables can be used in the lining of electric boilers and kilns to withstand combustion under high temperature and pressure conditions.

  • Cement & Lime
  • Metallurgical Industry
  • Chemical Industry
  • Power Station

Production Process of Monolithic Refractory

Kerui is a professional refractory material manufacturer. First of all, we have advanced production equipment, technology, laboratories, and strict quality inspection departments to ensure the high quality of our products. Secondly, we provide customized services and develop customization according to customer needs. In addition, we have professional pre-sales and after-sales teams that can provide customers with integrated solutions, products, and construction solutions.

Certificates Of Kerui Refractory

Kerui Group has a number of international certifications, such as, ISO9001/ISO14001/OHSAS18001/CE/SGS. Besides,
Kerui’s products also have many domestic certificates, the quality is very guaranteed, and they have been unanimously recognized by customers at home and abroad.

Kerui Refractory Products Packaging & Shipping

The entire delivery process is tracked, and Kerui’s expert team solves specific project needs with the utmost professionalism.
If the customer’s project requires it, Kerui’s expert team will go to the customer’s country to provide face-to-face technical support.

Customer Case Of Kerui Refractory

Besides mainland China, Kerui Refractory has exported products to more than 50 countries and regions across 5 continents across the world, including Asia, Europe, America, Africa and Oceania.

We have received recognition and high praise from customers all over the world, and are constantly receiving customers’ repeat orders and referrals.

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    ω (Al2O3) ≥/%5060657080
    Refractoriness ≥/℃17001720172017201780
    Bulk Density ≥/ (g/cm³)110℃*24h2.152.30 2.40 2.452.65
    Cold Modulus of Rupture ≥/MPa4.0 5.0 6.0 6.0 7.0
    Cold Crushing Strength ≥/Mpa2530353540
    Permanent Linear Change (T/℃*3h)/%±0.8
    Item/GradeClayHigh AluminaCorundum
    ω (Al2O3) ≥/%457592
    ω (SiO2) ≥/%50125
    ω (CaO)
    Bulk Density(g/cm3)2.32.63
    Cold Crushing Strength/Mpa727585
    Permanent Linear Change/±%
    Max Service Temperature/℃145016001700
    Water Needed/%6.0-6.56.0-6.54.0-5.0
    Item/GradeSICAST 85SICAST 80SICAST 60
    Physical PropertiesRequired Quantity (t/m3)2.682.62.5
    Water Required for Casting (%)450844508445115
    CCS (kg/cm2)@ 110℃x24h650(140)500(90)450(70)
    @ 1000℃x3h850(150)600(150)550(100)
    @ 1350℃x3h1100(250)1000(250)1000(250)
    PLC (%)@ 110℃x24h-0.06-0.06-0.06
    @ 1000℃x3h-0.1-0.1-0.2
    @ 1350℃x3h-0.1-0.1-0.12
    TC (kcal/mh℃)@ 35011.5118
    Chemical Propertiesω (Al2O3)/%9920
    ω (SiC + C)/%837858
    ω (SiO2) ≥/%454852
    Bulk Density ≥/ (g/cm³)
    Cold Crushing Strength ≥/MPa5810
    Acid Resistance ≥/%959595
    Thermal Conductivity Coefficient ≤ /[W/(m·K)] (350±25℃)0.50.550.60
    Service Temperature/℃8009001000
    ω (Al2O3) /%707585
    ω (SiO2) /%251713
    ω (Fe2O3) /%111
    Bulk Density (g/cm3)
    Cold Crushing Strength/MPa110*24h100110120
    Cold Modules of Rupture/MPa110℃*24h151518
    Normal Temperature Wear/cm3761500
    0.2Mpa Refractoriness Under Load/℃1450148025
    Max Service Temperature/℃1550251600
    Permanent Linear Change/%1300℃*3h-0.3-0.2-0.2
    ω (Al2O3) ≥/%807065
    Room Temperature Flexural Strength ≥/Mpa110*24h After Drying12.0 10.0 9.0
    1110*3h After Drying12.0 10.0 6.5
    Normal Temperature Compressive Strength ≥/Mp110*24h After Drying908070
    1110*3h After Drying908050
    1110Flexural Strength After 5 Times of Water Quenching And Rapid Heating Cycles at Room Temperature/Mp ≥5.555
    Permanent Linear Change/%1110*3h After Burning±0.5±0.5±0.5
    ω (Al2O3) ≥/%809095
    Bulk Density ≥/ (g/cm³)
    Flexural Strength ≥/MPa91011
    Compressive Strength ≥/MPa606060
    Permanent Linear Change ≤/%±0.5±0.5±0.5
    ω (Al2O3) ≥/%55606570
    Bulk Density ≥/ (g/cm³)
    Flexural Strength ≥/MPa7789
    Compressive Strength ≥/MPa40506070
    Permanent Linear Change ≤/%±0.5±0.5±0.5±0.5
    Bulk Density (g/cm³)
    Max. Service Temperature/℃1150120012501250130013001350
    Thermal Conductivity Coefficient ≤/[W/(m·K)]350℃
    700℃0.20 0.30 0.40.450.50.70.75
    Cold Crushing Strength ≥/MPa110℃*24h1.52.0 4.0 5.5101520
    1000℃*3h1.52.0 5.56.5152030
    Permanent Linear Change (1000℃*3h)/%-1.5-1.0 -1.0 -0.5-0.5-0.5-0.5