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第四届亚洲土工合成材料学术大会论文集 英文版_55.docx

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Fig. 2Geotextiles samples exposed to weatheringRESULTS AND ANALYSISTable 2 presents the results obtained for both PET andPP geotextiles (intact and after exposure). Fig. 3 shows thepercentual variation in mass per unit area. The results oftensile properties are presented in the Figs. 4 and 5 (thecurves presented are medium values).Results show that the mass per unit area decreases (=8.0%) after 1 month and the variations were practically thesame until the 3rdmonth conceminglhe PP geotextile. After4 months the value was 2.77% (increase). PET geotextileshowed higher variation (decreases) compared to PP: thelargest value occurred after 2 months (= 19%). After 3months the variation decrease to10%and at the last timethe variation increases again (15.77%). All these valuesshow that the mass per unit area of the material presentedsome oscillations caused by the lost of additives, gain inmass per unit area (increase of humidity) or by thevariability in the exposed samples.
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Term
Summer
Professor
Eric Larson
Tags
Tensile strength

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