High Quality Alumina Cement Refractory Cement For Boiler

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
2000 m.t./month

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Packaging Details:Refractory Cement packing: uauslly bags within ton bag, or according to client's request.
Delivery Detail:10-30 days according to the quantity

High Quality Alumina Cement Refractory Cement For Boiler

 

Product Description

Refractory Alumina Cement

 

Description of alumina cement 

 

Refractory cement is a kind of the refractory material use high quality corundum, alumina magnesia spinel and fused magnetite as raw materials, this refractory mate-

rial is characterized of resistance of high temperature, resistance of erode and

emersion, long life used. What's more, it can be made difference kinds of ladle as your request

 

 

Items

silicon refractory mortar

refractory temperature

1700

bonding time 

1~2 minutes

refractory under load, 0.2Mp

1600

SiO2 content 

≥96%

particle size  

0.075mm ≥60, 0.5mm ≤1

 

 

 

 

Physical and chemical index of alumina cement

 

 

Ordinary refractory cement CA50

 

 Product  Performance

CA50-1

CA50-2

CA50-3

mineral phase composition

main crystal phase

CA

secondary crystal phase

CA2,C12A7, CT, C2AS

specific surface area(m2/kg)

≥300

condensation

(minute)

preliminary condensation

≥30

final condensation

≤360

bending strength

(Mpa)

24hours

5.5

6

6.5

72 hours

6.5

7

7.5

compressive strength

(Mpa)

24 hours

40

45

50

72 hours

50

55

60

application

used as binder to make traditional unshaped refractory material (concrete, refractory gunning material, etc)

 

 

 

High-grade refractory cement CA50

 

ProductPerformance

CA50-1

CA50-2

CA50- 3

mineral phase composition

main crystal phase

CA

CA

CA

Secondary crystal phase

CA2, C2AS

C12A7, C2AS

C12A7, C2AS

specific surface area(m2/kg)

≥400

≥350

≥400

condensation

(minute)

preliminary condensation

≥90

≥30

≥120

final condensation

≤360

≤360

≤480

 

bending strength

(Mpa)

6-8hours

-

4

4

24 hours

8

6

10

72 hours

10

7

11

 

compressive strength

(Mpa)

6-8hours

-

30

30

24 hours

70

50

75

72 hours

80

60

80

application

used as binder to make special unshaped refractory material

 High Quality Alumina Cement Refractory Cement For Boiler


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Q:What is the fire endurance of ceramsite concrete blocks?
The heat conductivity coefficient of grade 800 hollow building blocks in ceramsite concrete is 0.23 and fire endurance is 4h. Ceramsite concrete has strong construction adaptability. It can not only compound concrete material with different unit weight and strength(It changes with the structure of thermal insulation or bearing structure) according to the different purposes and functions of buildings, but also is easy to construct. It is suitable for industrial production of a variety of construction methods. It can not only make all types of components(board, block, girder, column, etc) by using production process, but also can use mechanization construction of cast-in-place. The strong adaptability of construction of ceramsite concrete is not comparable to any other lightweight building materials(such as air-entrapping, etc.).
Q:I wanna ask you, which level is b1 fireproof and thermal inuslation matertial ??
which level is b1 fireproof and thermal inuslation matertial: I soppose you mean rubber and plastic! Only rubber and plastic has b1b2 level. Level b1 is the fireproofing level b1, because the rubber and plastic does not belong to the fireproofing material. It only has fire retardant. The wholesale of all kinds of thermal insulation material and construction needs to look at the name.
Q:I know which material is the fire resistance rolling shutter door
Inorganic fiber cloth as curtain side replace steel fire shutter curtain of steel plate, the thickness of the inorganic fiber cloth is much thinner than the steel curtain plate and the density is very small, so the volume of the same area of ​​the inorganic fiber is super fire shutter the same area of ​​steel fire shutter half, and weighs only one more out of the same area a few steel fire shutter, however, the inorganic fiber super fire shutter fire but has a very good insulation properties. I hope my answers are helpful to you.
Q:what's the standard of fireproofing material?
Class A1 is divided according to the combustion performance of GB8624-2006 building materials and products. Specific technical index requirements are: 1, the temperature rise ≤30 degrees;mass loss rate ≤50%; combustion duration time is 0; 2, main components, overall products, gross calorific value of external secondary components ≤2.0MJ/kg; any inner secondary component ≤1.4MJ/kg; (there are difference between homogeneous and non-homogeneous). Z802 building materials noninflammability testing furnace has to be used for testing technical indicators mentioned in test 1, using Z805 building materials combustion heat value to test technical indicators mentioned in test device 2.
Q:What is neutral refractory? Can refractory suppliers tell the main components of it?
The material using Al2O3, clay, bauxite and corundum as the main components is neutral material; the material using MgO and CaO as the main components is basic material; the material using SiO2 as th emain component is acidic material.
Q:What dose the fireproof and thermal insulation material include?
Currently the non-combustible insulation materials for external insulation system mainly are foam insulation board, composite cement foam insulation board, aerated concrete panels, rock wool board (strip), and inorganic insulation materials. 1. foam insulation board refers to foam ceramic insulation panels whose raw material is inorganic ceramic which is calcinated at high temperature with abbreviation of ceramic insulation board 2.Composite cement foam insulation board is a hydrophobic lightweight closed-cell insulation board whose main materials are cement, fly Ash, and silica fume which has been foamed, cured and cut. 3. aerated concrete panel is a lightweight concrete panel which has been autoclaved with lightweight materials, siliceous material and gas former as its raw materials. 4. rock wool panel, with natural igneous rock wool as its main raw material, is a cotton which is melted in high temperature by centrifugation and is pasted by thermosetting resin.
Q:How many fire endurance grades are the AAA fire resisting shutter divided?
The different fire resistant levels of the building have different requirements of the fire endurance of the building component. According to the fire endurance, the fire doors can be divided into Class A, Class B and Class C fire doors with the fire resistances are not less than 1.20h, 0.90h and 0.60h. Even the fire resistant level of B can also use the first rate fire resistant door.
Q:How many kinds of A-level fireproof and thermal insulation materials are there?
Please give us some information about the kinds of A-level fireproof and thermal insulation materials in the market.
Q:Who can tell somthing about how to choose fire resistant rating of fire resistance rolling shutter doors?
According to the fire endurance, fireproof doors can be divided into A-grade, B-grade and C-grade, whose fire endurance should not be less 1.2h, 0.9h and 0.6h respectively. A-grade fireproof doors can be even applied to the material whose fire resistant rating is at secondary level. "Building Regulations" mention that fire resisting shutter can be used as partition of fire compartment in those places where setting firewalls is not so easy. When using fire resisting shutter whose fire endurance includes unexposed surface temperature rise, its fire endurance should not be less than 3 hours. When using fire resisting shutter whose fire endurance doesn't include unexposed surface temperature rise, it should install closed independent automatic sprinkler system for protection on both sides, and the sprinkler sholud last at least 3 hours.
Q:What is the limit of fireproof rolling shutter?
According to the national standard 14102-2005 GB standard, the provisions of 14102-2005 GB specify that: According to provision 14102-2005 GB: If fire resistance limit of fire resisting shutter is no less than 3 hours, it is AAA fireproof rolling shutter. Therefore, the fire resistance limit of AAA grade fireproof rolling shutter should be 3 hours.

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