How Does Fly Ash Bricks Chemical Hardener Work?

Posted by Admin on September, 25, 2019

For constructing a house or building, different kinds of materials are required. One such material is fly ash brick. Fly ash bricks are a kind of building material that contains class C or F type of fly ash, some specific masonry units, and water.


They are then hardened with Fly Ash Bricks Hardeners. On using such chemical hardeners, the fly ash bricks’ strength increases to about 7.5 MPa to 10 MPa, thus making the fly as bricks harder than clay bricks.


Fly ash brick hardeners are manufactured and supplied by many construction companies all over the world. Suppliers of Fly Ash Bricks Hardener supply good and high-quality chemicals that are used to harden the bricks and make them stronger and long-lasting.

Properties of Fly Ash Bricks Chemical Hardener


The main ingredients of fly ash bricks are fly ash, cement, quick lime, also known as lime sludge, gypsum, and aluminium powder. These chemical ingredients highly contribute to the hardening of the bricks. The autoclaving process also increases the strength of the fly ash bricks. Here are some of the properties of chemicals that work as Fly Ash Bricks Hardeners.


• Gypsum Content: Gypsum contributes to a 5% proportion of the fly ash bricks. The suppliers of Fly Ash Bricks Hardeners use gypsum because it serves as a strength gainer for the bricks for the long term.


• Usage Of Aluminium: The chemical reactions that take place during the hardening process on the addition of aluminium paste the AAC a unique porous structure, insulation, and lightness. This makes fly ash bricks unique and hard as compared to other concrete material bricks.


• Commercial Processes Used: In the lime route process, the compositions of the fly ash bricks include 50% fly ash, 30% slaked lime, and 20% anhydrous gypsum. To this 3 or 4 times stone dust, a kind of filtering material and sand can be added. For the cement route process, the compositions of fly ash bricks include 76% of fly ash, 20% OPC and 4% anhydrite. To this 3 or 4 times of any kind of filtering material is added.


The Fly Ash Bricks Hardener Distributors offer a wide variety of fly ash bricks for construction purposes.


• Fineness Of Fly Ash: Fly ash being fine has a greater available surface area for reaction with lime. This increases pozzolanic activity that increases the strength of the fly ash. However, more than 320m2/kg of fly ash should not be used to make the fly ash bricks.


• Calcium Content: Fly ash brick comprising of calcium have high pozzolanic reactivity of fly ash. High calcium content results in a high pozzolanic activity that increases the hardness of the fly ash brick. C618 fly ash bricks of class C have more than 10% proportion of lime while that of class F has less than 10% proportion of lime.


The Fly Ash Bricks Hardener Distributors keep in mind the various advantages as well as the disadvantages of using various chemical hardeners for manufacturing fly ash bricks and therefore provide the best quality fly ash bricks in the construction market.



This entry was posted on September, 25, 2019 at 10 : 11 am and is filed under Construction Chemicals. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response from your own site.

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