Introduction

PP Woven Geotextiles are made of polypropylene yarns of various thickness with high strength characteristics.The density of geotextiles depends on the thickness of the yarn,the density of weaving can reach 200kN/m.It has a high resistance to aggressive environments and low temperatures.Resistance to ultraviolet is provided by special additives in the raw material-UV stabilizers. This geotextile is produced in rolls,the width of which can be up to 5.2m.

Properties Of PP Woven Geotextile

*Wide range of styles

*High manufacture quality and excellent performances

*High tensile strength and puncture resistance

*Low elongation

*UV-treated against sun radiation and resistant to chemical attacks

*Good vertical permeability

Advantages Of PP Woven Geotextile

 *Improve the bearing capacity of the soil at the structures to be constructed on soft and poor bearing soils

*It is used as reinforcement layer at the roads as it creates low elongation under high tensile strength.It minimizes deformations such as uniform subsidence and washout  caused by vehicle wheels

*Prevents mixing of subbase material with soil and enables protection of load bearing capacity and minimizes the loss if material used at the backfill

*Prevents deterioration at the soil,particularly at the road construction works,by immediately absorbing some of the load and by creating a reverse force at the edges of the zone where local subsidence occurs

*Although geogrid reinforced structures are recommended for side slope stability,it is possible to use latticed geotextiles. This application prevents loss of soil in case of flood.

 Application Of PP Woven Geotextile

*Strengthening of the ballast layer when laying the railway track

*The construction of retaining and protective walls

*Reinforcement of the embankments and slopes

*Reinforcement of embankments on weak soils,construction of permanent and temporary highways,access roads,paths and car parks

*Oil and gas terminals,airports

*Separation and strengthening of structural layers of road clothes

*Construction of hydraulic facilities

*Construction of sites for high loads

Specification Of PP Woven Geotextile :

PROPERTIES	Test Method	Unit	100/50	150/50	200/50	300/50	400/50	500/50	600/50	800/50	1000/50
Ultimate Tensile Strength(MD)	ASTM D4595	≥kN/m	100	150	200	300	400	500	600	800	1000
Ultimate Tensile Strength(CD)	ASTM D4595	≥kN/m	50	50	50	50	50	50	50	50	50
Elongation(MD)	ASTM D4595	%	10
Strength@5% Strain(MD)	ASTM D4595	≥kN/m	50	75	100	150	200	250	300	400	500
Creep Reduced Strength(MD)	ASTM D5262	≥kN/m	63	90	120	180	240	300	360	480	600
Long Term Design Strength	ASTM D6241	≥kN	50	72	95	148	198	248	298	398	498
Apparent Open Size	ASTM D4751	mm	0.075	0.075	0.075	0.25	0.25	0.25	0.20	0.20	0.20
Permittivity	ASTM D4491	Sec-1	0.03	0.03	0.03	0.15	0.15	0.15	0.18	0.18	0.18
Roll Width	–	m	5.2
Roll Length	–	m	50/100