Volteco Volgrip Lh – Light Waterproofing Material
VOLTECO VOLGRIP LH – LIGHT WATERPROOFING MATERIAL
VOLTECO VOLGRIP LH – LIGHT WATERPROOFING MATERIAL
Bentonite self-fastening membrane that waterproofs reinforced concrete structures.
Thanks to its particular self-gripping structure prevents interface transmigration of water phenomena.
INFORMATION
BRAND
Volteco
PRODUCT TYPE
Waterproofing Material
THICKNESS
> 4 mm (UNI EN ISO 9863-1)
THE ADVANTAGES OF VOLGRIP LH – LIGHT
- High impermeability
- Insuperable self-confinement
- Natural Sodium Bentonite-based product
- Natural-based product, it earns points for LEED certification
- It can be drilled, cut and shaped to adapt to the sructure
FLUID LOSS INDEX
< 18 ml(ASTM D 5891)
MONTMORILLONITE CONTENT
80% (XRD)
PRODUCTION
Italy
EASY AND QUICK
Easy and quick application
RESISTANCE TO PEELING OFF FROM CONCRETE
> 1.5 kN/m (ASTM D 903)
PRODUCT APPLICATION
Applications with reinforced concrete castings (beds and foundation walls against diaphragms, sheet pile and Berlinese retaining walls, existing foundations or disposable formwork) in constructions such as garages, cellars, warehouses, safety vaults, taverns, stores, multi-storey car parks, underpasses, tunnels etc... Contact Volteco Technical Service for a different use
SODIUM BENTONITE CONTENT
> 4 kg/m² (UNI EN 14196)
PRODUCTION
100% Made in Germany
HYDRAULIC CAPACITY OF THE GEOCOMPOSITE
6E⁻⁹ m³/m²/s (ASTM D 5887)
COLLECTION
Volgrip
FREE SWELLING
> 24 ml/2g (ASTM D 5890)
PACKAGING AND STORAGE
The product is packed in rolls as follows:
- 1.10x5 m, reaching a total length of 5.50 m² and a weight of about 27.5 kg (packaging excluded)
- 2.50x30 m, reaching a total length of 75 m² and a weight of about 375 kg (packaging excluded) The products must be stored in a dry place protected from sun and humidity.
TENSILE STRENGTH
8.5 kN/m (UNI EN ISO 10319)
RESISTANCE TO STATIC PUNCHING (CBR)
1.8 kN (UNI EN ISO 12236)
PREPARATION AND APPLICATION
LAYING THE PRODUCT UNDER SLABS
Level the surface with lean concrete. Apply VOLGRIP LH with the darker textile surface facing upwards, with staggered joints and overlapping the edges by 10 cm. Apply the sheets with FIX 1 or with nails and FIX 5 every 70 cm (approximately).
LAYING THE PRODUCT ON VERTICAL SURFACES
For existing walls at a height: use PLASTIVO 250 (see relative data sheet). For walls that are to be built against diaphragms, Berlinese and sheet pile retaining walls or existing structures: apply VOLGRIP LH after having levelled large cavities and/or rough parts, especially where the sheets overlap, with the darker textile surface facing the structure, taking care to stagger the joints and overlap the edges by 10 cm.
Apply the sheets with FIX 1 or with FIX 5 and gun-driven nails with washers every 30 cm (approximately). Then lay the reinforcements, formwork and related concrete casting. To seal all accessories with AKTI-VO 201, WT, AKTI-VO BS (see the relative technical data sheets) according to the type and size of the through body. For walls to be built with formwork, including disposable: attach VOLGRIP LH to the formwork, leaving the darker side of the textile facing towards the inside of the building. Then lay the reinforcements, internal formwork and the relative casting.
HOW IT WORKS
When in contact with water, or just simply in contact with the ground humidity, the natural sodium bentonite contained in volgrip lh turns into a waterproof gel through hydration and expands up to 16 times its initial dry volume while remaining waterproof tank to the self-confinement implemented by outdoor non-woven textile. The special volgrip needle-punching allows perfect self-confinement in such expansion once the casting is carried out (which is very important to obtain high waterproofing). In fact, the fibres of the non-woven textile (on the external side) protrude purposely from the textile (on the internal
Side) and during the casting, the fibres are embedded into the concrete, thereby resulting in excellent mechanical adhesion of all the product layers to the structure therefore not a simple surface adhesion (see drawing fig. 1). Through the calibrated mesh of the porous textile, the bentonite gel partially extrudes, thereby guaranteeing the seal of the overlaps and preventing water seepage between volgrip and the concrete. This phenomenon also allows the cracks that are normally caused by concrete shrinkage to be self-repaired.
Surfaces that are to be waterproofed can be damp, not necessarily clean but must not have great protrusions, cavities or continuous water flows that could compromise the self-sealing process of the overlaps. The sheets can be folded and cut in any direction.
