The ACIA PANEL construction system offer considerable advantages such as: Thermo-acoustic insulation, fire resistance, earthquake 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 yield strength,YS> 600 MPA,with an adequate ductility is used for the manufacturing of the panels. The galvanized steel is therefore protected towards corrosive plasters.
The standard diameter of steel wires of both meshes and connectors is 3mm (diameter may vary according to structural requirements)
1) Mechanical characteristics
|TENSILE STRENGTH (N/MM2)||YIELD STRENGTH (N/MM2)||ELONGATION (%)|
|TS > 650||YS > 600||E > 8|
2) CHEMICAL COMPOSITION
% C < 0,24 % P < 0,055 % S < 0,55 % CEQ < 0,52
3) Zinc coating
The zinc coating is variable according to the diameter of the wire mesh. Standard diameter is 3mm has a minimum of 60 grams/m² zinc coating.
The single panel is used as bearing elements as we apply a structural plaster (shotcrete) on the worksite to both sides of the panel. The standard shotcrete thickness is about 3 cm. This will form a sandwich panel of reinforced concrete with expanded polystyrene core. The structural plaster will use mixed treated sand with granulometry from 0 to 5mm and actual strength of at least 200 ÷ 250 dan/cm2.
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:
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 fluidizing 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|
|Volume mass tolerance per single sheet (±)||kg/m3 %||15 16||20 6||25 6||30 6||UNI 6349|
|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 exp(-1)||50 x 10exp(-6)||50exp(-6)||50exp(-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|