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Woven geotextile

Keyword: Woven geotextile

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　　Woven geotextile:

　　It is made of high-strength and low-elongation polypropylene, polyester and other synthetic fiber filaments as raw materials, and is manufactured by special technology. It is wear-resistant, burst-resistant, and has high tensile strength. It is suitable for slope protection, beach protection, and soft soil foundation treatment in rivers, sea channels, coastal seawall catchment areas, and harbors. It is an extremely ideal new material for modern water and soil engineering.

Basic requirements for basic items

Project		Indicator
Nominal breaking strength/(kN/m)		35	50	65	80	100	120	140	160	180	200	250
1	Warp breaking strength/(kN/m) ≥	35	50	65	80	100	120	140	160	180	200	250
2	Latitudinal breaking strength/（kN/m） ≥	According to the agreement, if there is no special requirement, the warp breaking strength is ×0.7
3	Standard strength corresponding elongation/% ≤	35 in warp direction, 30 in weft direction
4	CBR breaking strength/kN ≥	2.0	4.0	6.0	8.0	10.5	13.0	15.5	18.0	20.5	23.0	28.0
5	Equivalent aperture O₉₉ (O₉₉)/mm	0.05～0.50
6	Vertical penetration coefficient/(cm/s)	K× (10^-2～10^-5) where K=1.0～9.9
7	Width deviation/%	-1.0
8	Mold bag filling thickness deviation/%	±8
9	Die bag length, width deviation/%	±2
10	Sewing strength/(kN/m) ≥	Nominal breaking strength×0.5
11	Longitude and latitudinal tearing strength/kN ≥	0.4	0.7	1.0	1.2	1.4	1.5	1.8	1.9	2.1	2.3	2.7
12	Quality deviation per unit area/%	-5

Note 1: The specifications are based on the warp breaking strength. The actual specifications are between the adjacent specifications in the table. The corresponding assessment indicators are calculated by linear interpolation. When the range exceeds the table, the assessment indicators are determined by agreement between the supply and demand parties.

Note 2: When the actual breaking strength is lower than the standard strength, the elongation corresponding to the standard strength is not judged as conforming.

Note 3: The standard values ??of items 7 to 9 and 12 are based on design or agreement.