The ACIA PANEL construction system offer considerable advantages such as: Thermo-acoustic isolation, fire resistance, seismic resistance and important gain in time and material. By adjusting the thickness of the panel we could reach the “A” classification category in construction.
A wire with high limit of breakage, FTK> 600 MPA,with an adequate ductility is employed for the production of the panels. The hot-dip galvanized steel is therefore protected towards corrosive processess.
The steel used for the wire of both meshes and connectors has the following reference standards:
1) Mechanical characteristics
|TENSILE STRENGTH (N/MM2)||YIELD STRENGTH (N/MM2)||ELONGATION (%)|
|ø2,5 ÷ 750||ø2,5 ÷ 680||ø2,5 > 8|
|ø3 ÷ 700||ø3 ÷ 600||ø3 > 8|
|ø3,5 ÷ 600||ø3,5 ÷ 550||ø3,5 > 8|
2) CHEMICAL CHARACTERISTICS
% C < 0,24 % P < 0,055 % S < 0,55 % CEQ < 0,52
3) Zinc covering
T The zinc covering is variable with the diameter of the wire mesh. Standard mesh wire is with 2.5 mm using 60 grams/sqm zinc covering with a tolerance of + / – 5 grams.
The concrewall single panel used as bearing element is finished on site thought structural plaster application on each side. the standard final thickness of about 3 cm. the panel will form a plate of reinforced concrete with expanded polystyrene core. the structural plaster will have mixed choosing sand with granulometry from 0 to 5mm and final resistance of at least 200 ÷ 250 dan/cm2, variable according to the structural panels and geometry building conditions. the plaster should have a plastic consistency s2 (measured settlement with abrams cone less than 5cm).
For standard dosage in one cubic meter of Mass, The Indicative Quantity of each Material should be:
- Concerte 350 Kg
- Sand with Mixed granulometry 1600 Kg
- Water 160 L
the quantity of water may be different according to the natural sand humidity.
the following parameter that should be constant:
A/C ~ 0,52
I/C ~ 4,5
The sand quality should be without clay or any organic substances and totally washed.
Any problems of workability must be solved without adding water, and using fluidifying additives dosed according to the manufacturer’s specifications.
The retraction cracks formation can be avoided by adding polypropylene fibers into the mix (one kg per m3).
|Unit of measurement||I||II||III||IVA||Test Method|
tolerance per single sheet (±)
|Compression resistance of 10% of min. deform.||KPa||60||100||140||180||UNI 6350|
|Min. tension strength||KPa||130||170||220||320||UNI 8071|
|Thermal conductivity at 10°C||W/mK||0,037||0,035||0,034||0,034||UNI 7891|
|Thermal conductivity at 23°C||W/mK||0,040||0,037||0,036||0,036||UNI 7891|
|Coefficient of linear expansion||K-1||50×10-6||50×10-6||50×10-6|
|Fire reaction||Classe||M1||M1||M1||M1||UNI 8457|
|Dimensional stability at 10°C||%||0,2||0,2||0,2||0,2||8069|
|Gas diffusion resistance at 70°C||%||0,5||0,5||0,5||0,2||8069|
|Water absorption by immersion||Adimens||20-40||30-50||40-70||50-100||UNI 8054|
|Water absorption by immersion||% Vol||4||3||2||2||ISO 2896|