Functional Equivalence Specification
When it comes to building wall systems with ACMUs, it doesn't get much easier. Due to the aerated concrete block's inherent characteristics, building the wall system does not need as many different components as a stick-built system. ACMU systems have very good insulating, fire resistant, and air and water infiltration properties. These are all properties of the block units themselves, thus leaving very few components in the system.
The system itself consists of only the ACMUs, mortar, and concrete and rebar, as needed.
Description of Characteristics of ACMUs
Structural- The ACMU is a uniform monolithic building material capable of supporting normal structural loads encountered in a two story residence.
Water- Since the ACMU is a closed cell product it's inherently impervious to water.
Air- Since the ACMU is a closed cell product it's inherently impervious to air.
Insulation- A normal ACMU wall in a 2 story residence will achieve R-25 without any other form of extra insulation.
Movement- The ACMU wall is composed of interlocking blocks which form a mechanical bond, or reinforced with steel like a standard CMU wall. Therefore the result will be a movement resistant wall system.
Fire Safety- Most all ACMU Blocks are 4 hour rated.
Maintainability- You can cut into the surface to access utilities if necessary and some of the utilities are run on the surface of the wall. Overall it is a fairly maintainable wall system.
Constructability- ACMU's are very easy to handle, easy to stack, easy to cut and customize when necessary. Some are interlocking which makes the stacking process even easier.
Durability- Being that ACMU's are a form of concrete the only durability issue would be chipping which is easily mitigated.
Aesthetics- You can apply a variety of finishes and stuccos just like regular concrete.
Cost- They cost roughly 2.30 per square foot which is comparable to a standard CMU
*Information cited from Team 5 System Scoping
Back to Economic Performance Page
Back to Aerated Concrete Page
Back to Systems Page
|
