Refractory cement,Aluminate Cement,High alumina cement

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China main port
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TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
20000 m.t./month

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Product Description:

Quick Details

Place of Origin:

Shandong, China (Mainland)

Shape:

Powder

Material:

fire clay,high alumina,corundum

Al2O3 Content (%):

50%-80%

Refractoriness (Degree):

1770°< Refractoriness< 2000°

Brand Name:

cnbm

Packaging & Delivery

Packaging Details:Plastic woven bag 25kg

Refractory cement,Aluminate Cement ,High alumina cement

Features:

1.quick hardening and early strengthening

 2. used in urgent repairing

 3. used in the project under construction in winter

 4. sound anti-corrasion from sulfate effect

 5. anti-freezing

 6. high purity

Physical and chemical indicators:

CA-50 Cement

Physical property

Chemical component

Rupture strength MPa

Compressive strengthMPa

Setting time Min

Al2O3

SiO2

Fe2O3

 

R2O

(Na2O+0.658K2O)

1day

3days

28days

1day

3days

28days

Initial time

Final time

5.5

6.5

/

40

50

/

≥30

≤360

50-60

≤8.0

≤2.5

≤0.4

 

 

CA-60 Cement

Physical property

Chemical component

Rupture strength MPa

Compressive strengthMPa

Setting time Min

Al2O3

SiO2

Fe2O3

 

R2O

(Na2O+0.658K2O)

1day

3days

28days

1day

3days

28days

Initial time

Final time

2.5

5.0

10.0

20

45

80

≥60

≤1080

60-68

≤5.0

≤2.0

≤0.4

 

CA-70 Cement

Physical property

Chemical component

Rupture strength

MPa

Compressive strength

MPa

Setting time

Min

Al2O3

SiO2

 

Fe2O3

 

R2O

(Na2O+0.658K2O)

1day

3days

28days

1day

3days

28days

Initial time

Final time

5.0

6.0

/

30

40

/

≥30

≤360

68-77

≤1.0

≤0.7

≤0.4

Specific area cm2/kg

≥4000

 

 

CA-80 Cement

Physical property

Chemical component

Rupture strength

MPa

Compressive strength

MPa

Setting time

Min

Al2O3

SiO2

 

Fe2O3

 

R2O

(Na2O+0.658K2O)

1day

3days

28days

1day

3days

28days

Initial time

Final time

4.0

5.0

/

25

30

/

≥30

≤360

≥77

≤0.5

≤0.5

≤0.4

Refractory cement,Aluminate Cement,High alumina cement


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Q:Does anyone know about the classification standards of B2-level fireproof and thermal insulation materials?
The fire-resistant differences of B1- and B2-level extruded insulation boards are as follow: B1-level materials will be smothered as soon as staying away from fire, namely, they will be extinguished after leaving fire, or be put out in 10 seconds. B2-level materials will be in low-grade combustion, namely, the fire will not get wilder, and drippings will not ignite the filter paper. I hope my answer can help you!
Q:How to distinguish the fire rating of rubber and plastic thermal insulation material?
According to GB 8624-2006 "building materials and combustion products classification", the division of the material's combustion performance grade is changed from five levels of level A (homogeneous material), A (composite sandwich material), B1, B2 and B3 to seven levels of A1 , A2, B, C, D, E and F or A1f1, A2f1, Bf1, Cf1, Df1, ef1 and Ff1 or A1L, A2L, BL, CL, DL, EL and FL . The level B1 rubber and plastic fireproof and thermal inuslation matertial is the best, but the most commonly used one is level B2. Hope it will help you.
Q:Can anyone tell me what is a high alumina refractory?
Refractories refer to a class of inorganic non-metallic materials whose refractoriness are no less than 1580 ℃. Refractoriness is the Celsius temperature when cone-shaped samples can resist high temperature without softening and melting down in the absence of a load. But it is not accurate to define refractory merely by judging that whether the refractoriness is no less than 1580 ℃. Currently, the materials whose physical and chemical properties allow them to be used in high temperature environments are called refractories. Refractory materials are widely used in metallurgy, chemical industry, petroleum, machinery manufacturing, power and so on, among which the metallurgical industry is the largest demander in this regard, accounting for 50% to 60% of total output. Hope it will help you out!
Q:How to classify fire resistance rating of brick-concrete structure?
In order to ensure the safety of the building, the fire protection measures must be taken to make it have a certain degree of fire resistance, even if there is a fire, it will not cause too much damage. According to the national conditions of our country, and in the light of other countries standards, < high-rise civil building fire protection design specification > defines fireproof rank of high-rise civil buildings into level one and two; < code for fire protection design of buildings > divides the rank into level one, two, three, four, level one is the highest level, level four is the lowest. Besides that the minimum fire resistance of the building component is specified, buildings of fire resistance rating also specified requirements for combustion performance. Because the component with the same fire resistance limit is different, it is different in the fire.According to our country national standard < building design fire protection code >, the fire resistance rating of the building is divided into four levels. The fire resistance of a building is determined by the combustion performance and fire resistance of building components (such as beams, columns, floors, walls, etc.). Generally speaking, the fire resistance building of level one is a mixed structure of reinforced concrete structure or a mixture of brick wall and steel concrete structure; the fire resistance building of level two is a mixed structure of steel truss structure, reinforced concrete column and brick wall; the fire resistance building of level three is brick-wood structure made of wood roof and brick wall; the fire resistance building of level four is combustible structure which is composed of wood roof and non-combustible wall.
Q:What's meaning of CN of fire-resistant material?
The commonly used preparation methodsinclude shock compression, high-pressure pyrolysis, ion implantation, reactive sputtering, plasma chemical vapor deposition, electrochemicaldeposition, ion beam sputtering, , low-energy ion radiation, pulsed arc discharge,pulsed laser inducing, etc. But the compounding result of superhard materialis not ideal due to deposition of amorphous CN film, nanometer level sizedC3N4 crystalline grain set in the amorphous film and few large graincrystal.
Q:How many external wall thermal insulation fireproof material are there
External wall thermal insulation materials are generally divided by the burning grade, into class A, B grade. Grade A is non combustible material, grade B is combustible material. Class A which can be divided into thermal insulation mortar, bakelite plate, rock wool plate, foam cement plate etc.. Insulation mortar is relatively good, easy for construction, convenient, low cost, but its production process is too simple, so it is prone to fake. I recommend you to find a large manufacturing factory that posses complete procedure, for example, provincial production record, the provincial use record, municipal record, tset report at or above the provincial level, state fire proof report, design drawings of office building. product will not be safe if there is a lack of any of these documents. Burning level for henolic is uaually class B, but class A2 can be reached if a thin layer of mortar is applied on the suface,(A1 is the highest level of fire safety),intensity of phenolic is not high, finger pressing will leave a pit on it. if classified according to kilogram, raw material differs greatly every 10 kilogram. Rock wool is also classified by kilogram, general using 150kg wool. Rock wool are now comprounded with average strength. It will easily absorb water, having trouble applying paints. Foam cement strength is not high, easy to absorb water, It is not resistant to falling. It costs low, only used unless little profit can be made, Do not use it if worrying accidents would happen. These materials can be firstly burned, The palce the sample into water to see if it will dufuse at last. External wall should stand up to wind and rain. In terms of thermal insulation, they are almost the same, shows little differences on design thickness.
Q:What are the additives and recipes of refractory?
Add FDN.
Q:Is fireclay corrosive?
No. All of the refractory materials have stable chemical properties and their usability can be guaranteed under high temperatures.
Q:Graphite and other carbon materials may be oxidized to CO or CO2 at high temperatures. But why can they be refractories?
There is no contradiction for this. Any substance can be combustible, but different materials have different ignition points.There are many types of graphite. Pyrolytic graphite has a much lower ignition point. Therefore, as long as it reaches at a certain temperature, it can convert into graphite. Mostly, in practical applications (such as brake pads will add a certain amount of graphite), graphite is required to have refractoriness of below 1000 ℃. Graphite can serves as both the combustible and refractory material. So, it can be used as a fire-resistant and high-temperature-resisrant material because graphite (lamellar graphite) has a ignition point of at least 3000 degrees in an oxygen free condition. The above information is for reference only and is offered by Xin Ruida Graphite Company.
Q:What are the differences of ceramics and refractories? Is the ceramics belonging to refractories?
No In the high school chemistry, the former is talking about the traditional inorganic material, the latter is belonged to the new materials.

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