SALAND INDUSTRIES Material Division
Product Description:
SI- Geotextile fabric; is a high performance polymeric nonwoven staple fiber based on polyester / PET and Polypropylene / PP, with low creep and a high degree of dimensional stability. The products are designed to fulfil all civil engineering and other construction industry requirements.
SI- Geotextile fabric, technical process is Carded web bonded through Needle-Punch and/or Thermofixed. The state of the art process enables fabrics to be made with controlled superior properties, in dimensional stability, filtration, UV resistance and flexibility. The manufacturing operations (quality system procedures) are certified in accordance to ISO9001:2000 international quality system certificate.
Geotextile Functions:
Geotextile are flexible fabrics of controlled permeability used to provide protection, filtration, separation, reinforcement and drainage functions in soil, rock, waste materials. They are also specifically used as separation and protection layers within structural waterproofing systems, or as protection and moisture mats within the roofing system. Following are the most prominent functions Geotextiles perform in civil engineering and construction industry:
1. Building Construction
Roofing system & sub-structure:
- Protection and a separation layer for thermal insulation
- Protection layer for waterproofing materials.
- Roofing and Re-roofing (inverted roofing system)
- Sub structure, Foundation, under ground structure
2. Civil engineering
Filtration, Separation and Protection:
- Drainage system, Waste Containment, Canals, Rivers, Sea work
- Soil Stabilization / Erosion control.
- Load Distribution, Road, Railway, Airport
- Paving & Repaving.
Filtration: Filtration is one of the functions most widely performed by Geotextiles. The filtration function has two concurrent objectives; to retain the particles of the filtered soil, while permitting water to pass through the plane of the geotextile from the filtered soil.
Separation: Separation refers to the ability of geotextiles to prevent the mixing of two materials, such as soft subgrade with clean base aggregate.
Reinforcement: Soil movement is reduced by the confinement and reinforcing action of the geotextiles, which function by absorbing part of the stress that normally would cause shear failure.
Drainage: The lengthwise permeability of the geotextile allows it to perform as a drain. The amount of drainage is proportional to the thickness of the fabric.
Typical Application of Geotextile
Roofing system & sub-structure:
Roofing system: Geotextile is used in roofing system (inverted roofing system). To provide protection and separation layer for both; Thermal insulation, from puncture damage by the gravel and roofing tiles and the Waterproofing membrane, from being damaged by the friction effect due to their direct contact with thermal insulation boards.
Sub structure: Non woven fabrics are also designed to protect waterproofing composite compounds / membrane used in the foundation from ground water and mechanical traffic.
Drainage:
The main function provided by Geotextile in drainage systems is to SEPARATE the aggregate drainage media from the soil, and FILTRATION by preventing the transmission of fine soil particles into the drain.
Roads, Railways and Airport Runways:
Stabilizing the aggregate, SEPARATION, FILTRATION, DRAINAGE and REINFORCEMENT. Geotextiles provide long-term SEPARATION of the aggregate base from the subgrade soil, maintaining original thickness. In airport runways and rail tracks, it provides stabilization to counter vibrant loads.
Soil Stabilization (erosion control):
Geotextiles function to protect the shorelines through its flexibility and permeability by helping to counter the impact of waves and currents, hence stabilizing and preventing from erosion and washing out of fines.
Waste Disposal:
At waste disposal sites and water purification systems, Geotextiles as top and bottom layers, protect the membranes from perforation.
SI- Geotextile Special Technical Features
- Excellent Chemical resistant to chemical compounds found in soil.
- Excellent UV resistance
- Excellent resistance to bitumen and hydro carbon compounds
- Excellent resistance to water and seawater
- Non biodegradable
- Has no friction on the membrane, applied easily on vertical and horizontal surfaces
- Membrane Colour white
Product range
Standard weight ranges from 100 to 1500 gm/m². Available in rolls of 4.5-6m width suitable length. Materials are supplied wrapped with PE foil.
Installation method:
- Generally the surface shall be smooth free from debris.
- The fabric shall be placed loosely, no wrinkles.
- Overlapped fabrics shall have a minimum of 300 mm overlap.
- Avoid any unnecessary traffic on the membrane after installation.
These Technical data and descriptions are correct and may be changed without any prior notice subject to client requirements. All reasonable care has been taken in preparing this document which to the best of our knowledge is accurate and true. Recommendation and suggestions are made in good faith and should be considered for general guidance.
Tel: +44 207 0715087 | Email: info@salandindustries.com