Raw Materials for Refractory:High Alumina Cement, Aluminate Cement, Refractory Cement
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 20000 m.t./month
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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 | |
- Q: What is the upper temperature limit for refractory materials?
- Different materials are different. In the professional field, there is a triangulation cone softening point experiment as a reference for using the upper temperature limit.
- Q: What are the fire protection standards of insulation materials?
- This question is, like this. The combustion performance of thermal insulation materials for exterior walls of all civil buildings, within the scope of fire design auditing and fire control acceptance, should be brought into the auditing and acceptance. As for the "Management Regulations on Supervisions of Fire Prevention and Control for Building Projects" (Ministry of Public Order No. 106) , all civil buildings which are out of the scope of Article 13 and 14 are included in the random check. Before the release of new standard, it must be strictly implemented the Article II of the "Fire prevention Interim Provisions on civil external wall insulation system and external wall decorative" ([2009] No. 46), namely, the insulation materials of civil buildings must use materials with A-level combustion performance.
- Q: How long can gypsum board endure fire?
- Fire endurance refers to the fire-resistent limit of the whole system of light-gauge steel structure coupled with gypsum. It does nor merely refers to gypsum board. Fire endurance of the common gypsum board with the thickness of 9.5mm keeps 1.5 hours. Those gypsum board with the thickness of 12mm has a fire endurance of 3 hours.
- Q: How is grade of fire endurance divided?
- Fire resisting shutter is divided into Class A / B / C, and the relevant fire endurance are not less than 1.2 /0.9 /0.6 hours, see "General technical conditions for steel fire resisting shutter GB 14102-93". 4.3 4.3.1 Classification according to time of fire resistance 4.3.1 Ordinary steel fire resisting shutter (see Table 3) Table 3 and Category Code Refractory time hF1 1.5F2 2.04.3.2 Composite steel fire resisting shutter (see Table 4). Table 4 and Category Code Refractory time hF3 2.5F4 3.04.4 Classification according to refractory time and smoke prevention performance 4.4.1 Ordinary steel fire and smoke resisting shutter (see Table 5) Table 5 category and code refractory time h smoke leakage (20Pa differential pressure) FY1 1.5 ≤0.2m3 / m minFY2 2.0 ≤0.2m3 / m min4.4.2 composite steel fire and smoke resisting shutter (see table 6) table 6 category and code refractory time h smoke leakage (20Pa pressure) FY3 2.5 ≤0.2m3 / m minFY4 3.0 ≤0.2m3 / m min Excerpt completed. Fire shutter used as fire compartment has a fire resistance of 3 hours, and fire shutter set on the upper opening part on the firewall has a fire resistance of 1.2 hours. **** Materials with fire resistance of 3.0 hours are called AAA refractory material (back fire surface). "Building Conventions" have mentioned in places where it is really difficult to set a firewall, fire shutters can be used to separate fire compratment. When using fire shutters whose back surface temperature rise is included as the judging criteria of fire resistance, its fire resistance should be not less than 3.00h; When using fire shutters whose back surface temperature rise is not included as the judging criteria of fire resistance, independent protection of closed automatic water spraying system should be set on the both sides of the shutter, and the duration of water spray should be not less than 3.00h. In summary: Fire shutter is divided into: Grade AAA, A, B and C
- Q: How many types of special refractories are there?
- Metal ceramics, high temperature coatings, high temperature fiber and other reinforced materials
- Q: What type of firebrick does TZ-3 represent?
- Z represents a straight brick, T stands for common brick, common straight standard brick, -3 represents the length, and the specification is 230 * 114 * 65 (mm).
- Q: What is high alumina refractory?
- It refers to inorganic non-metallic material with refractoriness of higher than 1580℃. Refractoriness refers to the celsius temperature that the cone-shaped refractory sample without load can resist, and under which the sample won't soften and melt down. Refractory material appears together with high temperature technology, and roughly dates from the Middle Bronze age. In the Eastern Han Dynasty (AD25~AD220) of China, fireclay refractories has been used as furnace refractories and saggers for making porcelains. In the early 20th century, refractory material develops toward the direction of high purity, high dense and ultra high temperature products, and meanwhile unshaped refractory and refractory fiber with no need of firing at all and with low energy consumption appear.
- Q: what's the requirements of refractory for forge furnace?
- accurate answers please refer to Current Situation and Development Trend of Refractory Material in Heating Furnace ,Quality Requirement of Modern Industrial Furnace Refractory Material(GB/T17638-1998) Standard,Furnace-constructing Technology, if you need the mail box, please senf e-mail to me, my QQ number: 249704548.
- Q: What are the material requirements of class A fire resistant door ?
- Grade A fire resistance steel door, namely steel wooden doors or steel-wooden composite door, including reinforced wooden door, is usually used in indoor. In fact, it is the door with steel bar inside and density board or blockboard outside.
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Raw Materials for Refractory:High Alumina Cement, Aluminate Cement, Refractory Cement
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 20000 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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