Composition of Good Brick Earth | Function of brick Ingredients

Brick is largely used in construction due to its composition, utility and verity of shape & class of brick but we must know about composition of brick

Brick is largely used in any type of building construction due to its chemical composition of bricks, utility, and main economy and also verity of shape and class of bricks but constituents of bricks are same only difference is the percentage of materials 

So we must know about the composition of the earth for brick manufacturing in detail which we learn here in deep

Bricks are made by moulding clay materials in blocks of desired shape and size after drying and burning clay

    What are the requirements of good brick earth?

    We briefly explain the requirement that a good brick earth should contain, a good earth brick component that also refers as What are the factors affecting the quality of bricks? Or What is the composition of good brick earth? 

    And also What are the functions of various ingredients in bricks? So you have to read the whole article 

    Composition of a Good Brick Earth

    Composition of Good Brick Earth | Function of brick Ingredients
    Composition of Good Brick Earth
    Also Read: [Detailed] Step by Step Process of Manufacturing Bricks

    Silica

    • The chemical composition of silica is ‘SiO2
    • Silica plays a major role in the shape formation of any bricks earth
    • In the composition of good brick earth, silica proportion varies from 50% to 60%. (Identify the percentage of silica in good brick earth - (Identify the percentage of silica in good brick earth)
    • Silica prevents the raw brick from cracking, shrinking and also warping so offer a uniform shape
    • Silica also highly responsible for the durability of bricks
    • High use of silica proposition in bricks lead to destroys the cohesion property of bricks particles end of result  bricks turn into highly brittle/unuseful

    Alumina

    • The chemical composition of brick earth alumina is ‘Al2O3
    • Alumina is the second most major element in the formation of good bricks earth
    • In the composition of good brick earth alumina, the proportion varies from 20% to 30%
    • Alumina is responsible for moulding ability because its key characteristic is plasticity
    • Excess of alumina in brick earth makes the brick lead to shrink and warp during the drying operation
    • Alumina in brick earth gives the bricks with better formation 
    • Excess use of alumina composition lead to shrink and warp during the drying operation

    Lime

    • The chemical composition of lime is ‘CaCO3
    • Lime percentage must vary between 5% to 10% for good brick earth
    • Lime main function to prevent shrinkage of bricks during the drying operation
    • Lime acts as a flux and melts silica in clay and thus it alternatively helps to bind it
    • Excess use of lime produces a bad effect on the brick to melt and brick earth distorted it's shape and change colour red to yellow

    Iron Oxide

    • The chemical composition of iron oxide is ‘Fe2O3
    • Iron oxide offer impermeability and durability to the brick
    • Its percentage in lass than 7% in good brick earth
    • Its also provide strength and hardness to brick earth
    • It's also responsible for colour change with its percentage
    • If present in excess quantity in brick then brick turns into dark blue or blackish and less quantity offer yellowish colour

    Magnesia

    • Magnesia percentage in lass than 1% in good brick earth
    • It offer a yellow tint to brick
    • magnesia is responsible for reducing shrinkage in brick
    • Excess use of magnesia leads to decay of brick earth

    Alkalis

    • Alkalis percentage in lass than 10% in good brick earth
    • There are mainly in the form of soda potash
    • Its offer great value of fluxes i.e. to fusion
    • Excess use of alkalis makes the clay unsuitable for bricks
    • High use causes efflorescence

    What are the top 10 harmful ingredients in brick earth?

    When the chemical composition of clay bricks earth uses in excess proposition then its behave like harmful ingredients
    1. High use of silica proposition in bricks lead to destroys the cohesion property of bricks particles end of result  bricks turn into highly brittle/unuseful so High percentage use of silica become harmful ingredients in brick earth 
    2. High use of alumina turn into harmful ingredients in brick earth because brick material shrink and warp due to excess use 
    3. Excess use of lime produces a bad effect on the brick to melt and brick earth loses its shape
    4. If lime use in lump it’ll decrease moisture Resulting in the disintegration of the brick
    5. High use of magnesia became a reason for the decay of bricks
    6. Excess use of alkali melt the brick and produce unsymmetrical 
    7. If gravels, pebbles and grits available in raw materials then we have to compromise with the appearance of brick and create an obstruction to the homogeneous mix which leads to cracking in finished brick
    8. Excess quantity of water use leads to shrinking of brick
    9. Availability of organic particle in brick material which decreases strength and increases water absorption of bricks
    10. Excess use of alkalis makes the clay unsuitable for bricks also High use causes efflorescence

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