Refractory Material High Alumina Refractory Cement Ca80

• Refractoriness (℃): 1770< Refractoriness< 2000
• Feature: Long Time Materials
• Type: Refractory Material
• Shape: Powder
• Material: Alumina Cement
• Transport Package: Fumigation Wooden Pallet
• Model NO.: CA80
• Specification: customized
• Trademark: Kaiyuan
• Origin: China
• HS Code: 38160000
• Production Capacity: 5000 Tons/Month

Product 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