Acid Resistant Bricks
Acid-resistant bricks are primarily made from quartz, feldspar, and clay, produced through high-temperature oxidation and decomposition. Their primary component is silicon dioxide, exceeding 70%. High-temperature firing produces a large amount of mullite, a highly acid-resistant material.
Frequently produced sizes:
230*113*15/20/30mm; 230*113*40/50/60mm; 150*75*15/20/30mm; 150*150*15/20/30mm; 200*200*15/20/30mm; 300*300*15/20/30mm
All sizes brick can be made single side groove or double sides groove, glaze or non-glaze.
Special size and OEM service are provided, too.
Non Glaze: anti-skidding, anti-exposure.
Glaze: Easy to clean, smooth and clear.
Product Characteristics:
1. Excellent Acid Resistance: With an acid - resistance of 95% - 98%. Except for hydrofluoric acid and hot phosphoric acid, they have excellent anti - corrosion effects on acids such as hydrochloric acid, sulfuric acid, and nitric acid, as well as alkalis of various concentrations at room temperature.
2. Low Water Absorption: The structure is compact, and the water absorption rate is generally 0.5% - 5.0%. It is not easily penetrated by solutions, which can maintain good corrosion resistance in humid environments.
3. High Strength and Wear Resistance: The compressive strength can reach 100 - 150MPa, the Mohs hardness is 7 - 8, and the surface wear - resistance coefficient is ≥0.6. It can withstand the pressure and friction of heavy objects and is not easily damaged by external forces.
4. Good Thermal Stability: It can withstand rapid cooling and heating, with a temperature difference of ≥200°C, and the thermal expansion coefficient is only 4.5×10⁻⁶/°C. It can be used in the environment of - 30°C to 600°C for a long time without cracking.
5. Environmental Protection and Safety: The radioactivity detection reaches class A standards, and there is no VOC release. The waste bricks can be crushed and recycled as concrete aggregates, with a recycling rate of >95%.
6. Easy to Clean and Maintain: The surface is smooth, not easy to accumulate dirt, and easy to clean. It can be directly installed on substrates such as concrete and ceramic tiles, which is convenient for construction and shortens the construction cycle.
|
Item |
Red |
Grey |
|
Water Absorption, % |
5.5 |
0.20 |
|
Acid Resistance, % |
98.56 |
99.80 |
|
Pressure Resistance, Mpa |
79.9 |
80.0 |
|
Porosity, % |
12.6 |
|
|
Bulk Density, g/cm3 |
2.30 |
2.31-2.40 |
|
Bending strength, Mpa |
|
58.8 |
|
Al2O3, % |
20.24 |
|
|
SiO2, % |
65.79 |
|
|
Fe2O3, % |
6.93 |
Applications:
1. Petroleum and Chemical Industry: Used for the anti - corrosion lining of towers, pools, tanks, and troughs, such as the lining of acid storage tanks and the ground of reaction workshops.
2. Pharmaceutical and Food Industry: Applied to the inner wall of fermentation tanks, the ground and walls of production workshops, etc., which can not only prevent corrosion but also meet the hygiene standards.
3. Power Industry: Used for the lining of desulfurization towers to resist the acidic environment formed by wet desulfurization agents.
4. Environmental Protection Engineering: Applied to the lining of sewage treatment pools and acid - base neutralization pools to prevent the corrosion of chemical agents.
Frequently Asked Questions
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