07-02-2010, 10:15 PM
GEOTEXTILES IN TRANSPORTATION APPLICATIONS
GEOTEXTILE
Geotextile is defined as a permeable textile material used in contact with soil, rock, earth etc as an integral part of civil engineering project, structure or system
It may be of natural materials such as jute,coir,cotton etc.
Or of synthetic polymers such as polypropylene, polyamide, polyester,polyethylene
FUNCTIONS OF GEOTEXTILES
1. SEPARATION
2. FILTERATION
3. DRAINAGE
4.REINFORCEMENT
5. SEALING FUNCTION
DESIGN PROPERTIES
1. PUNCTURE STRENGTH
2. BURST STRENGTH
3. DYNAMIC PUNTURE
4. GRAB TENSILE STRENGTH AND
ELONGATION
5. PERMEABILITY
6. A O S
CONCLUSION
GEOTEXTILES ARE AN EFFICIENT EFFECTIVE AND ECONOMIC METHOD OF SOLVING MOST OF THE GEOTECHNICAL PROBLEMS IN ROADS.
THE DESIGN ENGINEER SHOULD BE WELL AWARE OF THE POSSIBLE PROBLEMS AND SHOULD USE THIS RELATIVELY NEW TOOL FOR SOLVING
THEM.
FOR THIS HE SHOULD UNDERSTAND PROPERTIES AND CAPABILITIES OF THE GEOTEXTILE MATIERIAL AT HAND.