How to Increase the Porosity of Insulation Bricks? Effective Tips!

As you may be aware, insulation bricks play an important role in a number of sectors due to their remarkable qualities of low thermal conductivity and high-temperature resistance. However, the porosity of insulation is the most important factor, therefore increasing the porosity of insulation bricks would result in improved plant efficiency. But here’s the question: how? That’s why we’re here; here are some excellent tips for increasing the porosity of insulation bricks. Let’s get started. 

What are Insulation Bricks?

Insulation bricks are specialized bricks with low thermal conductivity, making them suitable for applications requiring heat insulation. However, in order to get the necessary insulating qualities, such bricks typically have significant porosity. 

High porosity is useful in insulating bricks because it minimises the material’s heat conductivity. Thermal conductivity is a measure of how quickly heat can pass through a material. A high porosity in insulating bricks indicates the presence of more voids or air pockets, which impedes heat movement and decreases the total thermal conductivity of the material. As a result, insulation bricks are good at reducing heat transmission and providing thermal insulation.

Incorporating advanced materials and techniques can significantly enhance the performance of insulation bricks. One such method is the integration of spray foam insulation in Houston, TX, which offers superior thermal resistance and air sealing properties. This approach not only improves the energy efficiency of buildings but also contributes to the overall durability of the structure. By combining traditional insulation bricks with modern spray foam techniques, builders can achieve a higher level of porosity, allowing for better moisture management and temperature regulation. This synergy between old and new methods ensures that structures remain comfortable and energy-efficient throughout the year.

 In addition, following we have mentioned the types, pros & cons of insulation bricks, take a quick look!

Types of Insulation Bricks: 

• Lightweight insulating bricks 
• High alumina fire bricks
• Fire insulating bricks
• Porosint bricks
• Hotface insulation bricks
• Coldface insulation bricks

Pros of Insulation Bricks: 

• Good thermal insulation 
• High porosity
• Better strength & durability
• Chemical & corrosive resistant
• Excellent fire resistance properties
• Versatile usage
• Easy to handle & install

Cons of Insulation Bricks: 

• Low mechanical strength
• Brittle nature
• Poor moisture absorption
• Limited use in weight-bearing areas

How to Increase the Porosity of Insulation Bricks?

Here are some quick and effective ways to increase the porosity of insulation bricks. 

• It is a good idea to add materials such as sawdust which are able to burn out or sublimate to the mixture so that when the mixture is fired these materials are burnt out and leave pores behind.
• Use a whipping machine to produce small uniform bubbles, then add the bubbles to the mud.
• Carbonate and acids, metal powders and acids, caustic alkali, and aluminum powder are all examples of chemical substances that can produce gases through chemical reactions.
• Add substances that have an open texture on their own, such as insulating brick grog, vermiculite, exfoliated mica, expanded perlite, raw diatomite, and so on.

Note: 

In contrast to other refractory materials, insulation bricks have a lower thermal conductivity and heat capacity due to their high porosity.

Quick Buying Tips: 

In order to ensure you have found the right insulating bricks, keep in mind the following tips & properties.

• Thermal Conductivity should be Low.
• High mechanical strength
• Flawless finishing 
• Lower permeability 
• Temperature resistance
• Good crushing strength

Conclusion

It’s significant to note that there are various insulating brick species available, each with unique properties and temperature ratings. The type of insulation brick used is determined by the application’s unique requirements, such as the maximum working temperature and thermal conductivity required.  Furthermore, whether you want to learn more about insulation bricks or are looking for high-porosity insulation bricks, Ganeshas- a leading refractory industry in India has wrapped you. Get in touch with our team for further details.