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Can geotext prevent rooting?
- No, geomembrane can prevent the roots to wear.s
Geotextile grip test how to do? What is the step?
- Is said to be the strength test or the pull strength test. Can be based on relevant standards. For example: SL / T235-1999 standard, which has the relevant test method.s
Do you have a drainage board and a geotextile?
- How many dishes? Drainage board and geotextile a square need about 15 yuan cost, their trade-offs
Do you need to suture the lower geotextile of composite geomembrane?
- Need to suture, but the operation is more trouble.s
Construction of composite geotextile
- Geotextile as a protective layer of geomembrane, so that the protection of impermeable layer from damage. In order to reduce the UV radiation, increase the anti-aging properties, it is best to use the laying method. Construction, the first use of smaller diameter sand or clay to find the base surface, and then laying geomembrane. Geomembrane should not be stretched too tight, buried at both ends of the soil part of the corrugated, and finally in the shop on the geomembrane with a fine sand or clay shop layer of 10cm or so excessive layer. Puzzle 20-30cm stone (or concrete prefabricated block) for the anti-Chong protective layer. Construction, should try to avoid the stones directly hit the geomembrane, the best side of the film side of the protective layer of the construction. Composite geomembrane and the surrounding structure should be connected with expansion bolts and steel plate pressure bar anchorage, the connection site to brush the emulsion asphalt (2mm thick) bonding, to prevent the occurrence of leakage.s
Neighborhoods: anti-seepage composite geotextile testing need to follow which test specifications, and routine testing items.
- (G / sq.m), film thickness (mm), mass per unit area deviation (%), breaking strength (KN / m), the product quality (GB / T-1998) (KN), the equivalent pore diameter O55 (mm), the vertical permeability coefficient (cm / s), the hydrostatic pressure (Mpa), the tearing strength (KN), the CBR breaking strength (KN) The And the front two said the basic almost, but hope that a detailed description can make you more clearly point.s
Geogrid, fiberglass and geotextile What is the difference
- Grille is made of polypropylene, polyvinyl chloride and other polymer polymer by thermoplastic or molded two-dimensional grid or with a certain height of the three-dimensional grid grid, when used as a civil engineering, known as geotechnical Grille Engineering applications: roads, railways, abutments, approach roads, docks, dams, slag and other soft soil foundation reinforcement, retaining walls and road surface cracking engineering and other fields. Fiberglass mesh used in the external walls, wall paint, the main material to prevent the junction of different mortar and other plastering material cracking, hollowing. Local node reinforcement will also be used. Geotextile has excellent filtration, drainage, isolation, reinforcement, anti-seepage, protection, with light weight, high tensile strength, good permeability, high temperature, anti-freeze, anti-aging, corrosion resistance. Common non-woven fabrics, water layer inside the use, polyethylene polypropylene waterproof also used.s
What is the place of attention for the laying of geotextiles?
- (1) the use of the use of buried type: cover the thickness should not be less than 30cm (2) refurbishment system should be: cushion, impermeable layer, transition layer, protective layer composition. (3) soil to be solid, to avoid uneven subsidence, cracks, anti-seepage within the turf, root to clear. And the surface of the membrane with a small particle size of sand or clay as a protective layer. (4) laying the geomembrane do not pull too tight, both ends of the soil into the corrugated part of the soil is better, especially with the rigid material anchoring, should leave a certain amount of expansion and contraction. (5) construction, should avoid stones,s
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