Reinforcement geogrid PW4-LA

for foundationcomposite

TERRAM PW4-LA is a reinforced trackbed separator designed where the sub-grade is weak, ie. soft and boggy conditions. TERRAM PW4-LA is a composite formed from TERRAM PW1 and Tensar SSLA30 geogrid. Tensar SSLA30 improves track life and performance by stiffening ballast laid over weak ground. The advantage of TERRAM PW4-LA is the speed at which a geotextile filter and grid reinforcement can be laid in a single pass with the beneficial effect on construction costs. Features: Suitable for weak sub-grade soils (soft & boggy conditions) Helps to improve track life by stiffening ballast laid over weak ground The structure and composition of PW4 provides a long term mechanical performance and chemical resistance, even when used in very aggressive conditions. Improves the load bearing capacity of soil when placed at the base of ballast, constraining the aggregate by laterally confining it, providing the necessary support. Manufactured using large aperture bi-axially orientated geogrid developed specifically for railway applications and use under ballast. PW4-LA provides the ideal dimensional characteristics for the effective interlocking of ballast within the geogrid apertures. Network Rail approved Network Rail "Product Accepted" - PA05/04556