Description
CA75/CA80 Refractory cement
Brand | CA75 | CA75S | CA80 | CA80S |
Setting time | short | long | short | long |
As per GB201-2000 standard |
SiO2 | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.5 |
Al2O3 | 73.5-75.5 | 73.5-75.5 | 78.0-81.0 | 78.0-81.0 |
Fe2O3 | ≤0.2 | ≤0.2 | ≤0.2 | ≤0.2 |
CaO | 23.0-25.0 | 23.0-25.0 | 17.5-20.5 | 17.5-20.5 |
MgO | ≤0.4 | ≤0.4 | ≤0.4 | ≤0.4 |
R2O | ≤0.4 | ≤0.4 | ≤0.4 | ≤0.4 |
Fineness |
d50(μm) | 6-9 | 6-9 | 5-8 | 5-8 |
-45μm(%) | ≤5.0 | ≤5.0 | ≤5.0 | ≤5.0 |
Initial setting time minutes | 30-90 | 90-150 | 30-90 | 90-150 |
Finial setting time minutes | 90-180 | 270-360 | 90-180 | 270-360 |
MOR 1 day | 10.5-12.0 | 10.5-12.0 | 5.0-7.5 | 5.0-7.5 |
MOR 3 days | 11.0-12.5 | 11.0-12.5 | 6.0-8.5 | 6.0-8.5 |
CCS 1 day | 50-60 | 60-70 | 30-40 | 30-40 |
CCS 3 days | 55-65 | 65-75 | 40-50 | 40-50 |
Castable properties |
Setting Time(minnutes) |
20ºC | 50-80 | 180-270 | 90-120 | 180-270 |
35ºC | 30-50 | 60-90 | 40-60 | 60-90 |
Vibration Flow(mm)(20ºC) |
Initial vibration flow | 260-270 | 270-280 | 255-265 | 265-275 |
10 minutes | 245-255 | 260-270 | 250-260 | 260-270 |
30 minutes | 235-245 | 240-250 | 240-250 | 245-255 |
60 minutes | 225-235 | 235-245 | 235-245 | 240-250 |
Flexural Strength(MPa) |
20ºC×24hrs | 4.5-5.5 | 4.5-5.5 | 3.0-4.0 | 3.0-4.0 |
110ºC×24hrs | 10.0-11.5 | 10.0-11.5 | 8.0-9.0 | 8.0-9.0 |
1100ºC×4hrs | 12.0-14.0 | 12.0-14.0 | 11.0-13.0 | 11.0-13.0 |
Compressive Strength(MPa) |
20ºC×24hrs | 30-40 | 30-40 | 25-35 | 25-35 |
110ºC×24hrs | 75-85 | 75-85 | 60-70 | 60-70 |
1100ºC×4hrs | 100-120 | 100-120 | 100-120 | 100-120 |
Linear Change(%) |
1100ºC×4hrs | ≤-0.20 | ≤-0.20 | ≤-0.15 | ≤-0.15 |
- Pure calcium aluminate cement CA75 series products are customized products that meet the requirements of specific formulation design, and their performance is between the CA70 series and CA80 series products. CA75 sets and hardens faster, while CA75S has better fluidity and longer construction time.
- Pure calcium aluminate cement CA80 is a high-purity product, with an alumina content more than 78%, good early strength, and high residual strength at medium temperature. It is suitable for the preparation of various traditional and low cement castable. The prepared castable have a high softening temperature under load, excellent slag resistance and mechanical impact resistance, and the use temperature can reach 1800°C. The product contains extremely low impurities such as iron and silicon, and has good resistance to corrosion by reducing media such as CO, H2, and CH4.
- Pure calcium aluminate cement CA80S has better fluidity, longer construction time and lower water demand. The user does not need to add any setting agent to make the prepared castable have ideal construction performance and excellent mechanical strength. It is especially suitable for high temperature environmental conditions in summer and other occasions with special requirements for the working time of the castable.
Why choose us? Zhengzhou Kaiyuan Refractories Co., Ltd is a manufacturer of silicon-aluminum refractory (fireclay brick, high alumina brick, silica brick, mullite brick, corundum brick, insulation brick, castable, mortar) for coke oven, blast furnace, hot blast stove, heating furnace, anode baking furnace, boilers and other industrial furnaces for 20 years located in Henan, China. Our total annual production capacity is about 100,000 tons of dense-shaped refractory product, and 100,000 tons of monolithic refractory product.
We have three tunnel kilns for silicon-aluminum dense bricks and one new plant for the monolithic refractory.
We're sure our custom-made products and professional services will bring you a stable quality supply and more profit.
Our Laboratory and R&D Center
Contract Kiln Construction
Certificates
FAQ 1. Are you a Manufacturer or trader?
A: We are manufacturer and our plant is located in Xinmi city, Henan, China 2. Can we visit your company?
A: You are warmly welcome to visit our company at anytime, you'll not regret of the visiting.
3. Do you accept OEM?
A: Yes, we do OEM.
4. What's the MOQ of trial order?
A: We care about all the potential customers and take all the trails orders.
5. What is the payment term?
A: TT, LC, DP, DA.
6. How long is the delivery time?
A: Usually within 35 days after down payment.
7. Do you accept third party inspection ?
A: Yes for sure, we accept the third party inspection before delivery.
8. What is your after-sell service?
A: The rejected goods can be replaced or we can make compensation for it. We can send technical engineers to the end user for technical issue.
9.What is your company's certification?
A: ISO9001 certificate