Select a specific weight geotextiles for specific applications should be made on the basis of technical specifications or guided by the designer.
Which geotextile is most suitable for your needs?
Geotextiles must be applied in accordance with its parameters and technical characteristics. Select a specific weight geotextiles for specific applications should be made on the basis of technical specifications or guided by the designer.
What parameters should specify construction project to use of nonwoven geotextiles was optimal?
The project should specify:
- the surface condition and the type of ground surface taking into account its capacity;
- level of groundwater;
- the loading conditions and substrate surface;
- the design and the materials required for their implementation, as determined in compliance with the conditions to obtain the required capacity of the proposed structure, taking into account the ability of anchoring in the ground of nonwoven geotextiles and taking into account the angle of friction of the ground on geotextile;
- a recessed nonwoven geotextiles;
- texture or aggregates of land directly above and below geotextiles layer;
- type of nonwoven geotextiles, fixed with interference conditions fine particles by geo-textile and the strength of the piercing in CBR;
- grain size structure;
- land cover type face of the nut and the surface slopes;
- a drain and drainage, slope or embankment;
- how to perform covers of filter nonwoven geotextiles;
- type of nonwoven geotextiles given with due observance of the condition advantageously selected porosity, allowing up a large flow of water without penetration of fine particles of soil by fabric;
- location and construction of drains resulting from comparison of quantities of water flowing in the ground with plenty of water, which can discharge drain or the system of drains.
In what form geotextiles is provided for the construction?
Delivered nonwoven geotextiles are wound on sleeves (tubes). This allows for easy stacking her way to manually and mechanically. It depends on the size and weight of the bales. For example, using the nonwoven geotextiles with a high bandwidth allows you to cover the entire width of the road, without the need for cumbersome and expensive geosynthetics sewing belts. Eliminate the need to perform overlap also allows saving of nonwoven geotextiles expenditure.
Which nonwoven geotextile width to choose?
Cover the entire lane for one laying saves time and the cost of labour, allows the immediate filling material for road construction. Wide range of nonwoven geotextiles provide due to its latitude application techniques for fixing the ends, which increases the efficiency of the reinforcement. Please note that the use of too narrow lanes and too small geotextile overlaps, creates a gap between the belts and the disruption of previous property drainage, filtration and reinforcement.
If it is necessary to prepare the plan of putting nonwoven geotextile?
It is reccomended to start a plan, by which geotextiles can be stacked. It will help plan the work. It is important to take account of the direction of loading, the symptom of filler, gradient of the ground water flow direction, belt width, as well as how to connect belts and the geotextiles to the ground. If you need to change the dimensions of a geotextile or to make holes to allow free access to the structure (for example, drainage systems), cut nonwoven geotextile using a knife or scissors.
I want to build a waste tank farm and manure. Does your film have a resistance to this type of waste?
Geomembrane PrimaTess PVC fulfils the criterion of resistance to agricultural wastes including manure. We recommend the use of PVC PrimaTess 1,5 mm.
How to prepare the substrate before the installation of nonwoven geotextile?
The substrate before laying geotextile PrimaTess should be prepared in accordance with the requirements set out in the construction project. Laying of nonwoven geotextiles on the ground usually does not require special preparation. It can be put directly on the initially balanced (e.g. using motor graders) and purified natural ground, after prior removal of disturbing elements (tree trunks, branches, stones), which may cause damage of geosynthetic at the time of installation or work. The ground should be appropriately shaped according to plan-, longitudinal profile and cross sections. Preparation of the substrate as well as the properties of nonwoven geotextile should remain, regardless of the circumstances, to ensure the functioning of the product (e.g. resistance to deformation and tearing). Prior to the laying of nonwoven geotextiles, on the basis of tests and measurements, make your pick made ground.
What overlap to use?
It is recommended that:
- in the ground of moderate bearing capacity (CBR>5) – overlap = 0.3 m
- by ground with low bearing capacity, very compressible, with uneven bet = 0,5 – 1,0 m
What to do in case of damage of nonwoven geotextile?
In the event of a failure of geosynthetic, in agreement with an engineer, cover this damage using geosynthetic stripes on length and width of more of 90 cm from the damaged.
What are the dimensions of nonwoven geotextile?
Nonwoven geotextiles are prepared for the individual needs of the customer. There are available widths from 0, 5 m to 6 m and packages of 50, 100, 200 metres away. So, for the construction material is supplied to desired width. This reduces the formation of waste materials, speeds up realizations and reduces the costs.
Can you drive by heavy vehicles on geotextile?
After laid of geotextile any movement of heavy vehicles and machinery is unacceptable. That’s why geotextile lanes should be developed gradually, with little time in advance in relation to the filling of form. In the case where directly covering of geotextile it is not possible, belts of material attach to the ground by anchoring, doweling or pinning. It is recommended to avoid punctures of geotextile, gravel or other material should be gently unload from the truck or an excavator.
What soil is suitable to use geo-textile?
PrimaTess can be used in natural soil about 4 PH and a temperature of 9 < < < 25th (C).
How to prepare the ground surface before sealing with PVC?
Ground surface should be thoroughly rake, firm and free from sharp items that could pierce the geomembrane PVC PrimaTess.
Can Primatess PVC be combined with glue?
Yes. In addition to welding specialist film type devices LEISTER, Herz we’re able to bonding adhesive system available in our offer for PVC PrimaTess Adhesivo.
How to repair a PVC foil if you damage it during setup in the ground?
Simply cut a small piece of Primatess PVC from the sheets provided and use it to bond the damage, using adhesive system for PVC PrimaTess Adhesivo located in our range.
I want to insulate the parking at petrol stations. PVC foil or your production has a resistance to petroleum compounds?
PrimaTess foil PVC is resistant to oil and petroleum compounds including liquid fuels. We recommend the use of PVC PrimaTess 1,5 mm.
How to compose geotextile?
Very important is the way of laying geotextile. It is particularly important to avoid blistering pre-tension the material resulting in developing bales. Another essential point on which you need to pay close attention is how to combine. Nonwoven geotextile connects with sewing, joining with pins or using the plant material (typically 0.3-0.5 m, and even 1 m). Geo-textile decomposes on balanced and purified ground bands parallel or perpendicular to the axis of the road embankment or slopes. Cam develops so as to cover the entire surface. When allocating should take into account the size required tab. One belt geotextiles should overlap the second so that the resulting required tab width of longitudinal contingent upon the type of ground floor.
What are effective ways to connect geotextiles?
If the geotextile’s function is a reinforcing stitching, belts can provide sufficient transfer of tension. Staple seat belts can be executed on the construction site using portable sewing machines. How to combine and types of stitches depends on the functions of geotextile and type of building. In order to ensure the continuity of the mechanical and hydraulic stacked belts, geotextile, sufficient is overlap with a width of ± 0,2 m between the two strips. By acceding to the longitudinal staple, fold the first belt and on the second, then staple them both and unfold. At the other belt spread out third and sew them together again. So proceed until the required coverage throughout the surface. Cross-stitching belt so that we do next belt overlap at first and we staple. Important to use yarn and stitch having the same mechanical characteristics as geotextiles. Usually apply a double overlock which is adapted to the type of geotextiles, this limits the risk of unwinding of the belt in the event of a yarn breakage.
It is very important to not damage mechanical and hydraulic characteristics of nonwoven geotextile during combine the belts.
Another method is pinning and anchoring. Apply to steel rods with a length of 600 mm and a diameter of 8 mm „U”-shaped or polypropylene pegs. In the case of large and persistent structure can also be mounted band ends geotextiles by burial in the trench (trench depth and width of at least 40-50 cm). Then ditch should be burried.
How to store geo-textile?
Geotextile should be stored in the original manufacturer’s packaging. Changing the packaging, opening or destruction, resulting in exposure to UV rays may cause changes in the characteristics declared by the manufacturer.
How much time geotextiles can be without packaging?
Geotextiles must be covered in one day after the placement.
What is the thickness of PVC used to insulate the water pond?
Optimal thickness is 1mm geomembrane PrimaTess PVC. You should also remember about the separation of geotextiles PES PrimaTess 200 between ground and geomembrane.
I want to seal the horizontal part of the foundation, which thickness of the material can I use?
The minimum acceptable thickness of seals foundation, floors is 0, 8 mm geomembrane PrimaTess PVC.
I live in mountainous areas that are exposed to elevated levels of natural activity of radioactive elements. Does your PVC foil prevents the rays from the ground, by the Foundation of residential facility?
According to the research conducted in our lab waterproofing film PVC PrimaTess is an effective barrier to the penetration of radon.