02176nas a2200241   450000500170000000800410001703500150005810000260007324500600009926000520015930000430021149000270025450001350028150200530041652011520046965000160162170000370163770000450167470000410171971000500176081000590181085600650186920260818113308.0970818s1997    th uu m rtt   0|  a1eng d  a.b116324460 aJindarat Maneecharoen10aFactors affecting the laboratory testing of geotextiles  aBangkok :bAsian Institute of Technology,c1997  a94 leaves :bill. +e1 online resource1 aThesis ;vno. GE-96-13  aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Civil Engineering  aThesis (M. Eng.) - Asian Institute of Technology  aIn recent years, geotextiles both woven and nonwoven have been used extensively in  civil engineering application. In order to investigate, the factors affecting to index and  engineering prope1iies of the selected geotextile, different tests were conducted using both  heat-bonded nonwoven and needle-punched nonwoven geotextile, namely: the effects of  humidity on Apparent Opening Size (A OS), the effects of strain rate and clamping system on  Wide-Width Tensile Strength, the effect of using tap water and de-aired water on both  Permittivity and Transmissivity, and the effect of strain rate on Puncture Resistance. The  results indicate that decreasing humidity slightly increased the AOS; higher strain rate and  using hydraulic clamp increased the wide-width tensile strength; using de-aired water largely  improved the permittivity and transmissivity; and increasing the strain rate also increased the  puncture resistance. The effects of humidity and oxygen content were more profound and  obvious in the case of needle- punched and obvious in the case of needle-punched nonwoven  geotextile compare to heat-bonded nonwoven geotextiles.10aGeotextiles1 aBergado, Dennes T.,eChairperson1 aShibuya, Satoru,eExamination committee 1 aKohgo, Yuji,eExamination committee 2 aThe Government of Germany,eScholarship Donor2 aAsian Institute of Technology.tThesis ;vno. GE-96-13  3Full-Textuhttp://203.159.5.9/ait-thesis/detail.php?q=B13414