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Design Of Autoclaved Aerated Concrete (AAC) Bricks For Exterior Wall Brick Sound Insulation Construction
Product Description
With its closed air pockets, AAC can provide very good sound insulation. As with all masonry construction, care must be taken to avoid gaps and unfilled joints that can allow unwanted sound transmission. Combining the AAC wall with an insulated asymmetric cavity system gives excellent sound insulation properties.
AAC is inorganic, incombustible and does not explode; it is thus well suited for fire-rated applications. Depending on the application and the thickness of the blocks or panels, fire ratings up to 4 hours can be achieved. AAC does not harbour or encourage insects or other pests.
The purposely lightweight nature of AAC makes it prone to impact damage, both during construction and once built.
The porous nature of AAC can allow moisture to penetrate to a depth but appropriate design (damp proof course layers and appropriate coating systems) can prevent this. When exposed to moisture, AAC does not easily degrade structurally however its thermal performance may suffer.
Features
Autoclaved aerated concrete (AAC) is concrete that has been manufactured to contain closed air pockets. AAC is one-fifth the weight of concrete.
AAC is available as panels and blocks. AAC wall panels are typically used for cladding, but can also be loadbearing. AAC floor and roof panels are also available.
AAC blocks can be used for loadbearing structures up to 3 storeys, and AAC panels can be used for cladding.
AAC has medium thermal mass and provides very good thermal insulation.
AAC is relatively easy to work with but can also be easily damaged. Specific construction techniques are required.
AAC used externally should be coated with a vapour-permeable, water-resistant finish. Render to blockwork must be a proprietary mix compatible with the AAC substrate.
Technical Parameters
Parameter
Specification Range
Product Name
Autoclaved Aerated Concrete Blocks
Raw Materials
Silica sand, cement, lime, gypsum, aluminum powder, water
Curing Process
Autoclaved – high temperature & high pressure steam curing
Density Grade
B04 / B05 / B06 / B07
Oven Dry Density (kg/m³)
B04: ≤400
B05: ≤500
B06: ≤600
B07: ≤700
Strength Grade
A2.5 / A3.5 / A5.0 / A7.5
Compressive Strength – Average (MPa)
A2.5: ≥2.5
A3.5: ≥3.5
A5.0: ≥5.0
A7.5: ≥7.5
Compressive Strength – Min. Individual (MPa)
A2.5: ≥2.0
A3.5: ≥2.8
A5.0: ≥4.0
A7.5: ≥6.0
Thermal Conductivity (W/m·K)
B04: ≤0.09
B05: ≤0.11
B06: ≤0.13
B07: ≤0.15
Drying Shrinkage (mm/m)
Standard method: ≤0.30
Rapid method: ≤0.50
Water Absorption
≤ 210 gm/dm³
Fire Resistance
2 – 8 hours (depending on thickness)
Freeze-Thaw Resistance
Mass loss: ≤5%
Strength retention: ≥80%
Elastic Modulus (MPa)
2,000 – 2,500 MPa
Poisson's Ratio
0.2
FAQ
Q. 1: How long is the sample time ? Does the sample fee can be returned?
Proofing is usually 3-5 working days. If the order reach or exceed behind MOQ quantity, proofing fee refunded. If not reached behind MOQ quantity, proofing fee will be taken by you.
Q. 2: About the sample what is the cost of transportation?
The freight depends on weight, packing size and your country or province region, etc.
You can confirm by photo and video to save this money, If you become our old customer.
Q. 3: How long can I expect to get the sample?
The samples will be ready for delivery in 3-5days. The samples will be sent via international express and would be arrived within 3-5 days.
Q. 4: Do you accept customized orders?
Yes, we do. Your customized orders are always welcomed. Please kindly offer us your samples or drawings, so that we can customize the products according to your preferences. About any further detail, please feel free to contact us.
Q. 5: Can we have our Logo or company name to be printed on your products or package?
Sure. Your Logo could be printed on your products by Hot Stamping, Printing, Embossing, UV Coating, Silk-screen Printing or Sticker.
Q. 6: How to order?
Please send us your purchase order by Email or call us sales line
We need to know the following information for your order before sending you PI.
1) Product information-Quantity, Specification(Size, Material, Technological if needed and Packing requirements etc.)
2) Delivery time required.
3) Shipping information-Company name, Street address, Phone&Fax number, Destination sea port.
4) Forwarder's contact details if there's any in China.
Q. 7: How can order the products without any acknowledge of import ?
We could arrange you shipping or air or express for you and deliver everything to your port or provide you door to door service.
Q. 8: Do you have stock ?
We have a warehouse with a lot of stock, and most of the products are in normal production. If we have stock, we can deliver immediately.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter,Seller
Year Established:
2018
Total Annual:
180000000-200000000
Employee Number:
260~280
Ecer Certification：
Verified Supplier
Beijing Chuangyuan Construction Engineering Co., Ltd is a specialized manufacturer of high-performance fiberglass textiles based in Beijing, China. With years of industry experience, we focus on the research, development, production, and global distribution of premium glass fiber products for i... Beijing Chuangyuan Construction Engineering Co., Ltd is a specialized manufacturer of high-performance fiberglass textiles based in Beijing, China. With years of industry experience, we focus on the research, development, production, and global distribution of premium glass fiber products for i...
