Autoclaved Aerated Concrete AAC Block Plant (Turn-Key Projec
1. Autoclaved Aerated Concrete AAC Block Plant Introduction
Aerated concrete brick (light brick ) is the light and porous building material. It has light weight keeping temperature can't burn and other advantages, it can be made into many kinds of blocks length: 600mm height: 150mm\200mm\250mm\300mm width: 50mm\100mm\150mm\200mm)they could be used industry building and common building. They are more and more popular in the world. In the future, they will replace the Clay brick completely.
2. Autoclaved Aerated Concrete AAC Block Plant common conception
Common concrete density is usually 1600-2400kg/m3, but Aerated concrete are 500kg/m3, 600kg/m3, 700kg/m3. It has not the big grain, main use silicon material (for example: Coal ash, sand, stone dust and others ), through making the material small for example sand, they can be used directly if has enough degree of small (for example coal ash, Mixing calcium material lime cement water to a special slop, then add the aluminum dust and the additive, Make the aluminum dust and the special slop have a Chemical reflect. Then produce Hydrogen to make the concrete slop to expanding or swell, foam. Next, put them into the curing room to concreting cutting steaming curing, last, there will become the light brick, the porous rate is 70%-80%.
3. Autoclaved Aerated Concrete AAC Block Plant Advantages
Light weight
Aerated concrete density is usually 400-700kg/m3, (according the market in produce ), same as 1/3 of clay brick and 1/5 common concrete. So use the Light brick can reduce the weight of the build more, and also reduce the beam of roof and pillar press best. Then you can see, it can save the material and cost, it also fighting shaking.
Keeping temperature
It has many porous, the delivery hearting coefficient is 0.9-0.22W/(mk), the same as 1/4 or 1/5 of clay brick, so it is best materials now in the world. Also many kinds raw material, have lowest wasteMain Material: Coal ash sand waste mine material coal stone, stone dust and other silicon materials.
We are the top leader in China on manufacturing the Autoclaved Aerated Concrete Line(AAC) with 65% market share. We have exported our lines to different countries -- Russia, Thailand, Ukraine, Middle East and so on.
We can supply our customer for designning, production, installation, commissioning, training and good after-sale service.
Capacity: From 50000 cubic meter to 300, 000 cubic meters per year.
Equipments: Stocking raw materials, mixing, molding, forming, cutting, evaporating and curing, crane cramp, transporting etc.,
1 Product weight is according to 600kg/m3 to control.
2 annual capacity 300, 000M3.
3 set raw material proportion: Cement 6.5%, raw lime 23%, flyash 68%, gypsum 3%, aluminum paste powder 350G/M3.
4 water and material rate 0.631
5 one mould product 2.88M3
6 Casting slurry cycle time 5-6 minutes, cut cycle time 5 minutes.
7 casting slurry temperature 38-42 degree
8 body quiet stop. Time is 1.5-2.5hours, temperature 50-90 degree, after quiet stop body strength is 0.15-0.18Mpa
9 Steam curing cycle time, come in and out autoclave about 0.5hour, steam curing cycle time about is 7 hours/1.2Mpa total 7.5 hours
10.
Cement lime fly ash style aerated block raw material proportion
Name unit Cement lime fly ash
Flash % 65-70
Cement % 6-15
Lime % 18-25
Gypsum % 3-5
Aluminum powder paste(600kg/m3) 1/10000 8
Water & material rate 0.60-0.65
Casting system OC 36-40
Aluminum mixing time S 30-40
11. Cement lime Sand style aerated block raw material proportion
Name Unit Cement Lime Sand
Sand % 55-65
Cement % 10-20
Lime % 20-30
Gypsum % 2-3
Aluminum powder paste(600kg/m3) 1/10000 8
Water & material rate 0.65-0.75
Casting system OC 35-38
Aluminum mixing time S 30-40
Reference: Cement is 42.5 Portland or 42.5 common cement
Aluminum power paste calculate to use according to 600kg/m3
| 1. Sand 69% |
| |
|
Super Grade |
First Grade |
Qualified product |
| SiO2 |
≥ |
85% |
75% |
65% |
| CI- |
|
0.02% |
0.03% |
0.03% |
| Mica |
≤ |
0.5% |
0.5% |
1% |
| S O3 |
≤ |
1% |
1% |
2% |
| clay |
≤ |
3% |
5% |
8% |
| K2 O+Na 2 O |
≤ |
1.5% |
3% |
5% |
| 2. Lime 20% |
| Item |
Grade |
| Super Grade |
First Grade |
Qualified product |
| A(CaO+MgO) Quality Fraction % |
≥ |
90 |
75 |
65 |
| MgO Quality Fraction % |
≤ |
2 |
5 |
8 |
| SiO2 Quality Fraction % |
≤ |
2 |
5 |
8 |
| CO2 Quality Fraction % |
≤ |
2 |
5 |
7 |
| Digestion speed ,min |
≤ |
5-15 |
| Digestion temperature , °C |
≥ |
60-90 |
| Undigested residue quality fraction ,% |
≤ |
5 |
10 |
15 |
| Fineness ( 0.080 square hole sieve left amount) % |
≤ |
10 |
15 |
20 |
Audited Supplier 
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