Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)
- 1999.11c
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- Pages.39-55
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- 1999
Assesment of Weather ability of Polyester/Polypropylene Geotextile Composites
폴리에스테르/폴리프로필렌 복합형 지오텍스타일의 내후성 평가
Abstract
Geotextile composites to improve the weather ability were composed of recycled polyester geotextile with carbon black as ultraviolet stabilizer and polypropylene geotextile by needle-punching method, and evaluated physical properties, ultraviolet resistance and chemical stability. Retention ratio of tensile properties of non woven polypropylene geotextiles were decreased about 50% by the exposed condition with ultraviolet but those of geotextile composites were slightly decreased than polypropylene geotextiles. Geotextile composites which have larger weights of polyester geotextile were more stable against ultraviolet. For chemical stability, the changes of tensile properties of geotextile composites were in the range of -20~+10% at the various chemical conditions.
Keywords
- needle-punching method;
- geotextile composites;
- ultraviolet resistance;
- chemical stability;
- retention ratio of tensile properties