AAC Factory
Brief Introduction
Autoclaved Aerated Concrete (AAC) is a light weight, multi-cells new construction material; the features include lower density, heat insulation, processibility, fire and acoustical resistant properties.
AAC is made from silicon material (silica sand, or recycled flying ash) and calcium material (lime, cement), mixing with foaming additive (aluminum powder), batching with water, the reaction between aluminum and concrete causes microscopic hydrogen bubbles to form, expanding the concrete to about five times its original volume. It is made into the multi-cells silicate product by the processes of molding, pre-curing, cutting, evaporating and curing.
With abundant air cells and micro apertures inside the aerated brick, it has good performance of heat insulation and preservation. In addition, the most prominent advantage is its plasticity. Due to the lightness and the lower hardness, AAC units are available in numerous shapes and sizes according to practical construction applications.
Main Parameters
ITEM |
HIM-AAC-10 |
HIM-AAC-15 |
HIM-AAC-20 |
HIM-AAC-30 |
Capacity, ×103m3/year |
100 |
150 |
200 |
300 |
Block Size, m3 |
4.2×1.2×0.6 |
4.2×1.5×0.6 |
6.0×1.2×0.6 |
6.0×1.5×0.6 |
Installation Power, kw |
800 |
900 |
1300 |
1400 |
Production Cycle, mould/min |
6 |
6 |
4.5 |
4.5 |
Workshop Area, m2 |
3000 |
3500 |
4000 |
5000 |
Plant Area, m2 |
20000 |
25000 |
30000 |
35000 |
Technics Index and Autoclaved Requirements
1. Raw material mixing and pouring cycle: 8 minutes
2. Base body static curing time: 1.5~3 hours
3. Static curing temperature: 40°C
4. Strength after static curing: 0.2~0.3Mpa
5. Base body cutting cycle: 6 minutes
6. Autoclave pressure:
Vacuuming: 0-0.06 Mpa, 0.5hour
Rising pressure: 1.2 Mpa (temperature 193±5) 7.5hours
Working pressure: 1.3 Mpa
Falling pressure: 1.2 Mpa-0, 2hours
7. Raw materials batching rate:
Sand (or Fly Ash): 69%
Lime: 20%
Cement: 8 %
Gypsum: 3%
Aluminum powder: 0.074%
Remark: The accurate batching rate is adjustable according to local raw material.
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