The Production Process Of Autoclaved Aerated Concrete Block:
1.Raw material storage
Flyash, sand, cement, lime, gypsum and aluminum powder should be stored separately in the corresponding stock yard. Then they will be disposed separately and transported to each work section when used.
2.Raw material disposed
Flyash and sand will be transported into the wet ball mill by the conveyor belt. Afterwards by slurry pump the slurry will be transported into slurry tank.
3.Batching, mixing and pouring
The lime and cement will be transported successively by the screw conveyor into automatic weigher for weighs, and the slurry will be transported by the slurry pump into automatic weigher for weighs. Afte weighing the powder and slurry will be transported into the mixer for uniformity and pouring into the mould box.
4.Curing, cutting
The slurry which be poured into the mould box will preharden in the curing room which temperature is 40-50 degrees in one or three hours. When the body meets hardness of being cut, it will be transported with the mould box by reversal crane into the cutting cart. Then it will move with the cutting cart for level and vertical cutting.
5.Autoclaved and finished product
The cut body will be putted on marshalling site by the crane. The marshalling body will be transported into the autoclaved kettle by the hauling engine or mobile windlass for 8-10 hours maintenance. Afterwards the finished products will be pulled away from the the autoclaved kettle by the hauling engine, with separating and packing they transported into stock by forklift.
The raw material proportion:
| Parameter Name |
Parameter Value |
| Fly ash |
65-70% |
| cement |
6-15% |
| lime |
18-25% |
| gypsum |
3-5% |
| Aluminum powder paste |
8 |
| Water & material rate |
0.60-0.65 |
| Casting temperature |
36-40°C |
| Aluminum mixing time |
30-40s |
*For reference
Sand style aerated block raw material proportion:
| Parameter Name |
Parameter Value |
| Sand |
55-65% |
| Cement |
10-20% |
| Lime |
20-30% |
| Gypsum |
2-3% |
| Aluminum powder paste |
8 |
| Water & material rate |
0.65-0.75 |
| Casting temperature |
35-38°C |
| Aluminum mixing time |
30-40s |
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