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Castable construction specifications

Writer:WillSource:Original Number of visits: Date:6/7/2018

  1. A template shuttering construction should do waterproof processing, template surface should be smooth, to prevent sticking later, template before installation should use its surface is a moderate amount of oil evenly inunction, full advisable not to flow, template juncture place should be aligned seal, in order to prevent the lining of ladder and pulp.

  2. Construction site clean, can not have sand, lime, Portland cement, and other sundry blended castable, and asked all tools and equipment shall not be in contact with the castable with the above material.

  3. During the construction, we should adopt compulsory mixer mixing material, not using artificial shovel stirring. It is forbidden to different types of castable mix.

  4. When using the entire bag material (including the big bag of aggregate and a small bag of powder) into blender, there can be associated with, also can't take part.

  5. Appropriate construction environment temperature for 10-30 degrees. In construction of the summer, it is forbidden to put castable in outdoor exposure, should be put in the shade, construction site should be tested for shading treatment, mixing the water temperature is not higher than 20 degrees. Winter construction, when the environment temperature is less than 5 degrees, should use warm water (40-60 degrees), stir after construction, insulation to take appropriate measures to keep the environment temperature is above 5 degrees, and demoulding time not less than 48 days, when the construction environment temperature below 5 degrees, it is strictly prohibited to construction.

  6. Stir in water after dry mix evenly first, when the water that is used in the construction should be fresh and clean drinking water, the PH value should be controlled between 7-7.5.

  7. Add water should be carried out in accordance with the 7-9% water, no more than the biggest limited water added.

  8. Add water after 2-3 minutes, stirring time should mix, entrainment and glue group not a phenomenon. Mixed material finished in 30 minutes, clots after material can't add water mixing use, should be got rid of.

  9. A template loading height shall not exceed 300 mm. Material should be evenly spread out after loading templates, vibrating vertically, fast slow pull, insert depth to 100 mm, the next layer of lining in place to ensure that the upper lining cohesion and spacing between 510-200 mm, each time vibration time with material surface FanJiang advisable. (generally 20-40 seconds)

  10. Pour over 24 hours after stripping, stripping natural curing after 24 hours.

TypeInfo: Industry News

Keywords for the information:castable refractory  refractory cement  castable application on furnace construction 

    

 

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