Gaviarq®, Electrowelded Gabions

Since its origins A. Bianchini Ingeniero S.A. has been manufacturing gabions in Spain, but it has been in recent years when electrowelded mesh gabions, the so-called Gaviarq®, following the European trend, have entered our market thanks to their aesthetics and multiple combinations possible both in gabion dimensions and mesh spans.

The electrowelded mesh gabions are prismatic boxes, whose panels or faces are joined together by means of high-strength clips (1700 MPa) and are tied with braces of the same material at a rate of 6 braces per m2 of facing.

ADVENTAGE

They do not require foundations, although it is recommended to lease the walls with a poor concrete base or gravel for a perfect linearity of the wall.

Drains

Easy design

Quick assembly

Fire proof

Aesthetic

Multiple filling possibilities in decorative gabions: Stone, Inert Waste, Recycled

Wide range of dimensions and mesh lights

Durability

MESH TYPES, DIAMETERS AND DIMENSIONS

MESH 75X75-D4 mm: This mesh size is frequently used in architectural coatings.

MESH 100×50-D4 y 4,5mm: Anti-climbing mesh due to the vertical position of the mesh, especially for security walls. The smaller dimension of the mesh (50 mm) allows the use of smaller stone without the risk of it coming out of the gabion.

MESH 100×100-D4 y 4,5mm: The square mesh par excellence, gives a lot of visibility to the stone. It is perfect for working with river bolus or other types of rock whose diameter is greater than 150 mm.

DPANEL DIMENSIONS MESH 100X50 I 100X100		MESH 75X75
3000×1000	1500×1000	1950×975	975×975
3000×500	1500×500	1950×450	975×450
2500×1000	1000×1000	1500×975	450×450
2000×1000	1000×500	1500×450	1350×225
2000×500	500×500	1350×675	675×225

Other sizes of panels and other mesh lights are possible. Please check availability.

APPLICABLE REGULATIONS

The UNE EN 10223-8: 2013 standard describes the characteristics of electrowelded mesh gabions and their connecting and cable-stayed elements.

One of the most outstanding points of this standard is to determine what type of alloy should be used and what its durability will be based on the classification of the different environments defined by ISO 9223: 2012.

ISO 9223 classifies atmospheric corrosivity into 6 categories and for each category, EN 10223-3 and 8 establish the “LIFE OF THE PRODUCT” according to the quality of the coating used.

CATEGORIES OF ATMOSPHERIC CORROSIVITY
CATEGORIES	CORROSIVITY
C1	Very low
C2	Low
C3	Medium
C4	High
C5	Very High
CX	Extreme

The European Construction Products Regulation CPR/305/2011 (mandatory throughout the EU) establishes that in permanent structures, the minimum durability of the structure must be greater than 50 years.

The following table relates the different environments with the durability of the wire depending on the type of metallic coating used.

Environmental Classification (according to ISO 9223)	Coating	Class (EN 10224-2)	Durability (years)
Low Aggression (C2) Dry Condition Temperate areas, with low pollution: rural areas, small cities 100 meters above sea level. Dry or cold areas, with a slightly humid environment. Desert or sub-arctic areas	Zn	A	25
	Zn95Al5	A	>50
	Zn90Al10	A	>120
Medium Aggressivity (C3) Dry conditions Temperate areas, with medium pollution and chloride effects: coastal areas with chloride deposition, urban areas. Subtropical to tropical areas with low pollution	Zn	A	10
	Zn95Al5	A	25
	Zn90Al10	A	50
High Aggressivity (C4) Wet Conditions Temperate areas, with high pollution and significant effects of chlorides: coastal areas with deposition of chlorides, polluted urban areas, industrial areas with a polluted medium atmosphere. Subtropical to tropical zones.	Zn95Al5	A	10
	Zn90Al10	A	25
	Zn90Al10 + Organic Coated	A	>120

These environments are the most common except for cases affected by direct proximity to the sea and / or high levels of pollution, which must be classified as C5 and CX. In these two cases, it is only possible to use alloys with organic coatings, such as PoliMac® with which we ensure a durability of more than 120 years. Another alternative will be the use of AISI 316 Stainless Steel or similar grades.

As can be seen from this table, in the case of a C3 environment, on highways with traffic, with gas emissions from combustion or medium to large cities, GalMac® C3 (Zn90Al10) is the only alloy that guarantees construction durability of more than 50 years.

CE MARKING

All our elements to configure electrowelded mesh gabions have the CE mark. By adding the CE marking to a product, the manufacturer declares, under his sole responsibility, the performance of this product with all the legal requirements of the EU and ensures the validity of the product.

TECHNICAL CHARACTERISTICS OF OUR GABIONS

GAVIARQ®

Manufacturing Certified by the UNE EN ISO 9001 Standard

Wire Diameter: 4, 4.5 and 5.0 ± 0.08mm (EN 10218-1-2 Table 1)
Average Wire Strength: 700 MPa (EN 10218-1-2)

Minimum coating: 275g / m2 Galmac® C3 (EN 10244-2 Class A Table 2)
Mesh size tolerance: ± 3 mm (EN 10223-8 Section 7.3. Table 3)

Panel dimension tolerance: ± 3 mm / m (EN 10223-8)

Resistance to welding shear: average greater than 75% of the breaking load of the wire of smaller section and individual values not less than 50% (EN 10223-8 Section 7.5).

Gabion dimension tolerance: ± 35 mm (EN 10223-8)

Dioxide Corrosion: Less than 5% of the surface with red oxide after 56 cycles (EN ISO 6988)

Salt Corrosion: Less than 5% of the surface with red oxide after 3500 h of exposure (EN ISO9227).

Durability

Environment C2:> 120 years

Environment C3:> 50 years

Environment C4:> 25 years

SPECIAL PIECES

Trapeziums, triangles, oblique finishes. We can manufacture pieces of any geometry or they can be modified “in situ” on site if the appropriate tools are available.

GAVIARQ® INOX: MAXIMUM DURABILITY

We offer our clients the possibility of supplying gabions, welded panels and their components (Tie and Staples) made of Stainless Steel 316 grade or similar, as well as gabions with organic coating. These grades are the only ones recommended in C5 and CX environments

FILLING STONE AND RECYCLABILITY

Almost any natural stone can be used to fill a gabion. In decorative gabions, as long as they do not form structural walls, any type of inert element or vegetation can be used as filling, with spectacular results.