Form loading...
Lightweight Castable

Low Cement Castables



Lightweight Castable

Lightweight castable is made of aluminate cement, high alumina fine materials, ceramsite and some additives.

Product Function

This product has the advantages of light volume, high compressive strength, acid and acid gas corrosion resistance. Heat insulation, heat preservation, low water absorption and other characteristics, simple construction, is the most ideal product for construction of alkali-resistant parts at high temperature. Good workability, strong adhesion, long initial setting time and construction operation time, rapid strength growth, strong impermeability, no need for acidification treatment, easy to ensure the compactness and fullness of masonry mortar joints, and can significantly improve the air tightness and integrity of the chimney lining wall and the corrosion resistance of the lining.

Lightweight Castable

Item No. QJ-1400 QJ-1300 QJ-1200 QJ-1000 QJ-800
Operating temperature℃ 1400 1300 1200 1000 800
Bulk density g/cm² 1.5 1.2 1.0 0.8 0.5
Normal temperature compressive strength Mpa after drying at 110℃ >5 >4 〉3.5 〉2.5 >0.3
After reaching the use temperature 7 6 4.5 4 0.5
The line changes after burning, Keep warm for 3 hours not exceeding 2% of the test temperature 1400 1300 1200 1000 800
The thermal conductivity is not more than(350±10℃) w/m.k 0.5 0.4 0.3 0.22 0.18

Product Application

Used in metallurgy, electric power, petroleum, chemical industry and various silicate kilns, such as some components of external refining device, external refining ladle cover, integral spray for treating molten steel, furnace top lining, soaking furnace of heating furnace, furnace lining of annealing furnace, tundish lining, tapping trough, high-temperature burner and blast furnace tapping ditch cover, ladle lining and so on.