High Temperature Calcium Aluminate High Alumina Cement - Raw Materials for Refractory
- Ref Price:
-
- 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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Product Description
| Description of calcium aluminate high alumina cement |
The calcium aluminate high alumina cement is made by bauxite and lime as raw material,calcined and grinded after compounding with certain rate.
| Advantages of calcium aluminate high alumina cement |
The calcium aluminate high alumina cement has high strength and easy to construct.
| Applications of calcium aluminate high alumina cement |
The calcium aluminate high alumina cement can be used to compound the unshaped refractory and for some rush-to-build constructions.
| Physical and Chemical Indexes |
| Characteristic | Item | Unit | calcium aluminate high alumina cement | |||
| A600 | A900 | CA-70 | CA-80 | |||
| Superficial area | / | m²/kg | 354.8 | 425.2 | 612 | 608 |
| Chemical contents | SiO2 | % | 7.81 | 5.86 | 0.32 | 0.28 |
| Al2O3 | % | 51.26 | 54.12 | 73.68 | 78.86 | |
| Fe2O3 | % | 1.78 | 1.72 | 0.32 | 0.15 | |
| R2O | % | 0.26 | 0.23 | 0.2 | 0.21 | |
| Setting time | Initial setting time | minute | 128 | 205 | 109 | 68 |
| Final setting time | minute | 159 | 287 | 172 | 121 | |
| Rupture strength | 1 day | Mpa | 6.1 | 9.2 | 8.2 | 5.7 |
| 3 days | Mpa | 7.1 | 11.1 | 10.2 | 7.7 | |
| 110℃ | Mpa | / | / | 12 | 8.9 | |
| Compressive strength | 1 day | Mpa | 52.4 | 72.5 | 55.8 | 43.2 |
| 3 days | Mpa | 56.8 | 81.9 | 70.6 | 55.4 | |
| 110℃ | Mpa | / | / | 89.8 | 80.8 | |
- Q: For refractory, what is critical particle size? Thank you.
- For example, in refractory technology, if there is an express of equal to or lower than 0.008mm, 0.008 refers to critical particle size. The main criterion for judging performance of three major continuous casting is the major three normal temperature indexes (compressive strength and anti bending strength at normal temperature, apparent porosity and bulk density). Does this criterion have any defect? How to do multiple test if high-temperature index introduced? Carbon bond is one of the three major castings. How does it form? What do you think of it? Hope someone explains it for me. Thanks a lot!
- Q: Which industry does refractory belong to?
- It belongs to construction industry.
- Q: For refractory knowledge. What is the ratio of clay ramming?mass?
- Soil aggregates, dispersing agent, water reducing agent, plasticizer, binding agent and powder! ~ Bone meal feed approximately 6, OK
- Q: Why does refractory need to add coarse firstly and then add fine aggregate?
- Oh, adding coarse aggregate first is to select good material to make aggregate, and the rest cna be made into fine aggregate. Because if it contains impurities, once being sintered, the appearance will be affected, but fine aggregate does not have this impact.
- Q: What kind of material is refractory fiber?
- Refractory fiber, also known as ceramic fiber, is a fibrous thermal insulation refractory. It has the characteristics of ordinary fibers, such as softness, flexibility, having a certain tensile strength. And it can be further processed into a variety of products such as paper, wire, rope, tape, blankets and felts. Besides, it has high temperature resistance and corrosion resistance which ordinary fibers don't have. As a fire retardant and thermal insulated material, it has been widely used in metallurgy, chemical, machinery, building materials, shipbuilding, aviation, aerospace and other industrial sectors.
- Q: What kind of material is refractory bauxite?
- Bauxite (aluminous soil; bauxite), also known as alumina or bauxite ore whose main component is alumina oxde, is a hydrated alumina containing impurities. It is an earthy mineral. It is white or gray, and as it contains iron, it is also brownish yellow or light red. Density of 2.4-2.5g / cm3, hardness 1-3, opaque and crispy. It is extremely difficult to melt.
- Q: Fire resistance and evaluation of refractory for casting
- The products to be tested are broken and ground, adding organic binders (usually dextrin) that do not affect the refractoriness. Water is used to make standard sized test cones, as shown in figure 1-2-1. Test cone is positive, three edge cone, the bottom side length of 8.5mm, the top side length is 2mm.Test, the equivalent of high standard cone refractoriness of the 2 products to be high, No. 1 and No. 1 high temperature low standard cone of each one, and the 2 to be tested in accordance with regulations frustum cone plug made of high aluminum material, a cone prism and vertical 8 degrees. 1 degrees tilt angle. Then, the cone is heated in a high temperature furnace. When the test cone with a high temperature and bending down to the standard cone top contact cone, the high standard cone refractoriness refractoriness is running.
- Q: What is the the best matching ratio of refractory cement?
- Refractory cement is very easy to use. Add some water and mix, and it will harden. Generally there is no need to add other binding agents, but you can add some refractory aggregate and powder. If you use only refractory cement, it will produce a lot of cracks after high temperature. Generally refractory cement can withstand temperature of about 1300 degrees. Refractory cement can be used together with ordinary sand, and the ratio of cement and the sand is about 30 percent.
- Q: how long is the fire endurance of plasterboard?
- Gypsum board is flame retardant materials, combustion performance rating B1, but when mounted on a steel joist, it can be seen as rating A(non-combustible material) . So it is fine to use as a ceiling. You can randomly choose several samples to run some tests at the quality inspection insititute and the quality of these samples are subject to the testing results.
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High Temperature Calcium Aluminate High Alumina Cement - Raw Materials for Refractory
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 2000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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