| Customization: | Available |
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| Material: | Castable |
| Refractoriness (℃): | 1770< Refractoriness< 2000 |
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Alkali Resistance Castable Introduction
Alkali resistant refractory castables belong to Aluminium silicate system slightly acidic refractory castables, which can resist the erosion of alkali metal oxides (such as K2O and Na2O). Alkali resistant castables take alkali resistant ceramsite, clay clinker, waste porcelain material, high-strength expanded Perlite, etc. as aggregate, and Calcium aluminates cement or water glass as binder.
The alkali resistant casting material forms a crust and erosion resistant protective layer on the surface at a temperature of 1250 ºC. It can effectively prevent the alkaline airflow in the cement kiln material and the erosion and penetration of the material on the casting body at high temperatures. Alkali resistant castable is widely used in cement Rotary kiln due to its advantages of high strength and low density
Alkali Resistance Castable Advantage
1. High strength and low body density
2. Good high-temperature performance and alkali corrosion resistance
Application of Alkali-resistant refractory castable
Alkali-resistant refractory castable is widely used in cement Rotary kiln and alkali recovery furnace. The application effect is good in systems such as coal nozzles, kiln entrances, preheaters, and pipelines of large and medium-sized dry process cement kilns.
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Item |
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2 |
3 |
4 |
5 |
6 |
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Heavy castable |
Lightweight castable |
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|
Al2O3/% |
<40 |
40 |
48 |
66 |
>35 |
>35 |
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|
Bulk density/ g·cm-3 |
2.15 |
2.16 |
2.31 |
2.68 |
1.68 |
1.64 |
|
|
Compressive strength/MPa |
110ºC 1100ºC 1500ºC |
42 20
|
81 80 (1000ºC) |
88 90
|
110 120 175 |
38 32
|
28
|
|
Flexural strength/MPa |
110ºC 1100ºC 1500ºC |
5.4 2.0
|
7.8 8.1
|
9.8 1015
|
11 3.5 17 |
4.0
|
2.5
|
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Linear variation/% |
1500ºC |
-0.5 |
-0.4 (1000ºC) |
-0.3 |
-0.98 |
-1.2 (1200ºC) |
-1.2 (1200ºC |
Packaging: 25kg/bag, two layers kraft bag with water proof, and with ton bag outside or each ton packed on a fumigation pallet according to customers' request.
ZHENGZHOU RONGSHENG REFRACTORY CO., LIMITED has 30 years of experience in R & D and design of unshape refractory experts, holds 20 utility model patents and 7 invention patents, and has passed the ISO quality, environment and safety management system certification. The company is committed to the R & D, production and service of refractories used in metallurgy, electric power, nonferrous metals, building materials, chemical industry and other industries. Its products cover 198 kinds of materials and 2369 varieties in three categories (acidic, neutral and alkaline), providing overall solutions for refractories for 1200 domestic and 200 foreign
customers.
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