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High alumina castable high alumina cement castable instructions

Words:[Big][Medium][Small] Mobile Page Two-Dimensional Code 2018-06-10     

ingredients

This product has been prepared when it leaves the factory. It is finished material. 

Finished material: 100%, water: 10-12%

The combined water can be adjusted according to the weather conditions.

stir

1. The mixing equipment should adopt the fast and powerful mixer with appropriate capacity, and manual mixing can be used when the quantity is small;

2. Remove all sundries in the blender before mixing.

hybrid

1. In the mixer, pour the aggregate into the mixer and dry mix for 1 ~ 2 minutes to make the aggregate and binder fully mix evenly; 

2, water quality requirements: use clean tap water, chlorine ion (cl-) content is less than 300ppm, seawater, salt and alkali water, polluted water containing mud and sand can not be used; 

3. Add the clean tap water to the blender in the specified proportion, and stir for 5 ~ 10 minutes until the color is consistent, then the material can be discharged. 

4. The mixing material should be used up within 30 minutes to prevent the initial setting of the material due to too long interval, which will affect the quality of the project;

5. Keep the materials on site

After all materials are delivered to the construction site, they shall be classified and stacked neatly, kept dry to prevent rain and damp. The storage place of materials used in the construction site shall have strict rain-proof measures.

The construction of the

1. Casting environment: the highest and lowest ambient temperature during casting shall not exceed 32℃ and 5℃ respectively.Otherwise, cooling or heating measures must be taken, and it is best to keep the temperature of the mixture between 18 and 24℃.

2, pouring template should have enough strength, support mold size should be accurate, and prevent deformation in the construction process, template joints should be strict, no leakage of slurry, the template should take anti-adhesion measures. 

3. Insert type vibration bar should be used for slight vibration during casting of high alumina refractory castable, and it can vibrate while feeding during molding, and the vibration time should not be too long;As long as the surface of the slurry internal compactness, bubbles can escape.

4. During the construction of pouring material, it must be carried out continuously. The time interval of each pouring shall be within 20 minutes, and the longest time shall not exceed 30 minutes.

Matters needing attention

1. Separate storage by classification. Mixed storage with acid and alkali substances is strictly prohibited.The storage time is 3 months.High aluminum light weight castable for more than 3 months can still be used if qualified after inspection. 

2. The ambient temperature for construction and maintenance should be above 10℃, preferably above 20℃.In the rainy season, construction should take measures to prevent rain. In winter, construction should take measures to keep warm. 

3. After wet curing for 24 ~ 48h after construction, the mold can be removed. If local edges and corners are damaged after mold removal, they can be repaired. 

4. When the pouring material is not put into use immediately after the completion of construction, the pouring material must be dried before the temperature drops to 0℃, and it should be baked before being put into use.



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