.... To address this limitation, a novel Composite Vertical Drain ( CVD ) was developed by replacing the conventional corrugated polymeric core with a geofoam or Styrofoam core wrapped in multiple layers of polypropylene mesh ( PPM ). Laboratory tests were conducted to evaluate discharge capacity, tensile...

... or aggressive environments, with possible exposure to metals or metal ions. This work examines how metal ion solutions (cobalt, copper, iron, manganese, nickel and zinc nitrates) influence the oxidation resistance of two polypropylene geotextiles. For this, the materials were exposed in isolation (individual...

... Reinforced soil Polypropylene Crack feature Natural Science Foundation of Tianjin Municipality 23JCQNJC00110 This project is supported by Natural Science Foundation of Tianjin Municipality (No. 23JCQNJC00110). In seasonally frozen regions, the embankment filling soil undergoes...

...I.M.C.F.G. Falorca; M.I.M. Pinto ABSTRACT: An experimental programme was carried out on the shear strength behaviour of sandy and clayey soils reinforced with short, randomly distributed, polypropylene (PP) microfibres. The influence of fibre texture, fibre content, fibre length and normal stress...

... 17 1 2003 17 1 2003 Industrial Fabrics Association International, 1801 County Road B West, Roseville, Minnesota 55113-4061, USA, Telephone: 1/612-222-2508, Telefax: 1/612-631-9334 2002 Geogrid Relaxation Creep Polyethylene Polypropylene Isochronous curve Constitutive model...

...-filament polyester (PET) geotextile, and on two nonwoven needle-punched polypropylene (PP) geotextiles with carbon black in Vijus, Peru, and Atlanta, Georgia, USA. The average retained strengths of each geotextile in both locations did not exceed 60%. Five geotextile samples (those previously mentioned...

...D.G. Grubb; W.E. Diesing, III; S.C.J. Cheng; R.M. Sabanas Outdoor exposure tests were completed on two woven slit-film polypropylene geotextiles with carbon black and two nonwoven needle-punched polyester geotextiles in Huaron (∼11°S; 4,600 m elevation) and Vijus (∼7°45′S; 1,250 m elevation), Peru...

...-222-2508, Telefax: 1/612-631-9334 2000 Geogrid Stress relaxation Creep Polyethylene Polyester Polypropylene Isochronous curve Technical Paper by V.N. Kaliakin, M. Dechasakulsom and D. Leshchinsky INVESTIGATION OF THE ISOCHRONE CONCEPT FOR PREDICTING RELAXATION OF GEOGRIDS ABSTRACT: Due...

... was undertaken to investigate the resilient behavior of polypropylene fiber-reinforced sand. Triaxial, California bearing ratio (CBR), and resilient modulus tests were conducted on fiber-reinforced sand as well as unreinforced sand, and the results compared. The optimum fiber content was found to be 0.4...

...A.K. Ashmawy; P.L. Bourdeau Simple tension tests were performed to investigate the load-elongation behavior of two geotextiles, a woven polyester and a nonwoven polypropylene, under monotonic and cyclic loading conditions. Creep tests under constant load were also performed in order to examine...