AAC block manufacturing machine

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AAC block manufacturing machine

AAC block manufacturing machine

     

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    If over 500pcs, mass production will start until pre-production sample has been approved.

    Est. 7 days production

    Product Description

    AAC Block Introduction
    AAC (Autoclaved aerated concrete) block Main raw materials of AAC are siliceous material (sand, fly ash and Silicon tailings) and Calcium materials (lime and cement) mixed with foaming agent (aluminum powder). It is the product of light porous silicate through the following processes: batching, mixing, pouring, hardening, cutting, autoclaving and curing etc. Because of large amount of well-distributed tiny pores after foaming, it is named autoclaved aerated concrete.
    AAC Classification : In general, it can be classified according to the types of raw materials, manufacture process and functions. Based on the shape of AAC products, it can be divided into: AAC blocks and AAC panels. It is a revolutionary material offering an unique combination of high durability and strength, low weight, excellent heat insulation, fire resistant, noise absorption, unprecedented build ability and superior ecological green features. In China, AAC is one of the light wall materials which was popularized and applied at the earliest and the most widely.

    Working process

      

    AAC Block manufacturering unit

     

    Material dealing process
    Put the fly ash or sand into the ball mill to mill via the conveyor belt, after milling, put the slurry into the slurry storage tank by slurry pump. 

    Batching, mixing and pouring process

    The lime, cement will convey by conveyor to the dry powder measure scale to scale separately. The slurry convey by slurry pump then to the automatic scale;the power and slurry put into the mixer,pouring into the mould.

    Curing process

    After slurry pouring into the mould, put the mould box into the curing room with 50~70℃. After 2-3 hours curing,the blocks become solid

    Cutting process

    Using reversal crane carry the mould and block to demould on cutting cart. The cutting cart will take the block to level cutting machine,vertical cutting ,two sides cutting,and remove the top waste material.

    Autoclaved

    Finished cutting using semi-product crane carry to the front of autoclave grouped,hoisting machine or dragger will drag steam trolley into autoclave to steam,it need 10-12 hours.

    Finished block dealing

    Finished product out of autoclave,with separting machine to separate layer by layer.

    Package

    Using finished block carry hanger clamp the finished product to package line on wooden pallets,after package, then by forklift transport the finished products to piled yard according to specifications to stack.

    Product Performance
    Type
    TU groove brick
    Flat brick without groove
    Length(mm)
    600
    600
    Thickness(mm)
    75,100,125,150,200,250,300
    75,100,125,150,200,250,300
    Height(mm)
    240,300,400
    240,300,400

    AAC Block compression strength of cuber meter       

    Volume density level
    B06
    B05
    B04
    desiccated density(kg/m³)
    ≤625
    ≤525
    ≤425
    Strength level
    A5.0
    A3.5
    A2.0
    Drying shrinkage date
    0.5
    0.4
    0.4
    Freezing resistance
    quality loss %
    ≤5.0
    ≤4.0
    ≤3.0
    Strength after freezing(Mpa)
    ≥4.0
    ≥2.8
    ≥0.6
    Dry coefficient of thermal conductivity
    [W/(m•k)]
    ≤0.16
    ≤0.14
    ≤0.12
    Raw Material

    Chinese supplier Dongyue automatic aac plant low investment with high profit material description
    Fly-Ash:A lot has been said about this raw material in this Project Profile itself. But this Raw material is freely available in Thermal Power plants. There are no taxes on this item whatsoever. Transportation charges are only to be attended by the entrepreneur.
    Sand (65-70%):  the core raw material of AAC product; the main resource of silica-aluminum components; correspond with JC409-91; the clay should less than 4%

    Lime(12-20%):one of the main raw materials of fly ash AAC; the main effect is to provide efficient calcium oxide with cooperation of cement making calcium oxide react with SiO2,Al2O3 in hot water then to produce calcium silicate hydrate. Therefore, lime is also the main resource of strength. Effective calcium oxide of lime should not less than 65%, over 80% is perfect and should accord with JC/T621-1996.


    Cement(8-10%): This Project aims to utilize OPC cement as main binder material. It will give faster strength to the bricks, besides giving improved consistent quality. It also ensures a better cost effectiveness for the same. Using OPC will be a standardized practice. The other prime advantages of using OPC (compared to other binders) is it's easy availability locally through nationwide Retail Network of Cement Companies.

    Gypsum(1-2%):Gypsum is the foaming regulator in AAC which dispels quicklime and postpones slurry's densification.CaSO4 should be more than 70%.


    Aluminum Podwer(0.074%):it is the forming agent type and recommendation for supply depend on raw materials and mix formula

    AAC application
     

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