AAC Block :
AAC (Autoclave Aerated Concrete) is a new type building material where the raw materials are siliceous materials (fly-ash, sand, slag), calcareous materials (lime, cement and gypsum) and Aluminium powder.
AAC product has been widely used in industrial and civil construction. AAC product can be divided into AAC block and AAC plate.
AAC technology is recommended for large scale production and consumption.
Production of aerated concrete block,is asubstitute of solid clay brick ideal wall material,can meet the national Ministry of construction building energy saving 50% construction standards,can the wall materials to promote thereform of the new,in which brings serious harm to the fly ash of industrial waste residue to get comprehensive management and utilization at the same time,can enjoy a wall to change and tax number of preferential policies,so as to obtain the better living environment,social and economic benefits,have broad market prospects for development.
2. Raw material
Cement lime Sand style aerated block raw material proportion
ingredient | 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 |
3. Process flow
(1) raw materials: sand, cement, fly ash, slag, gypsum, shale, most of industrial waste can be used as block raw materials, which improves a lot on environment.
(2), Measuring, batching and casting section
Slurry, cement agents, gypsum and aluminum go into high-speed stirring mixer after automatic measuring respectively, and then bubbles inside green body will be sorted out by vibration rods. The whole system is full-automatically controlled by PLC to guarantee the high efficiency and precision of procedure running.
(3)Static curing and Cutting
Stable and still curing can avoid damage to internal structure when the gas is and expanding inside the green block. High efficient and fluent cutting machine and table tilt machine are the key parts to the hexahedral cutting.
(4) Autoclaving and Final Product Process
Green body gets final strength and performance via autoclaving. Dongyue's newly developed separating and packing system can not only promote qualification rate but also solve the difficulty in separating blocks and wall panels at the same time.
Properties of Eastland AAC Block:
- Lightweight
- High Strength
- Sound Insultion
- Heat Insulation
- Anti-vibration
- Fireproofing
- Load-bearing
- No radioactivity
Highest Grades of Quality:
B05 A3.5 - dry density is 520kg/m3, compressive strength 4.0Mpa
B06 A5.0 - dry density is620kg/m3, comressive strength is 5.0Mpa
Length | 600mm |
Height | 250mm |
Thickness | 50,75,100,120,125,150,175,200,240,250,300mm |