2016-03-18_PERMIT FILE - C1981008 (3)

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THE GEOGRID MYTH I Woven Geotextiles—why they really work better! For subgrade stabilization applications where weak subgrade conditions exist, geogrids are limited in their effectiveness due to their low tensile strength, inability to separate and provide filtration, expensive mechanical connectors, and high cost. In subgrade stabilization applications the product that works best is often a woven geotextile. Woven geotextlles combine the properties of high tensi e strength and modulus, and high confinement, in addition to their ability to act as a filter and separator Woven geotextlles can also be searned together to create uniform high strength in al directions I-) fact, if you look at any subgrade stabilization application, woven geotextlles will always out perform geogrids technically and economically. C-eogrv7S (rrht) allow Soh SUbyr&W_- SUBS Iq Pura,) thoug- whoe wo%vn C, 'Ulexhit:. he't) p,owxc sepa'aDo'1 and Hlrat r, A Look at the Facts tells you why! AjProperties of Mirafi HP Woven Geotextiles Versus Biaxial Geogrids% MIRAR Biaxial Geogrid MIRAR Biaxial Geogrid Units HP370 Type 1 HP570 Type 2 MD XD MD XD Tensile Strenc_ th ultimate lbs/ft 2700 910 1410 4800 1278 2188 5`yo Strain lbs/ft 1350 620 890 2400 820 1340 2% Strain lbs/ft 540 300 445 960 380 595 Interaction - 0 0.8 0.8 0.95 08 Separation/Filtration• Excellent None Excellent None Tt>ese properties were obtained from published manutactwers' literature ano actual test programs Technical Comparison - When you !ook at the key Economical Comparison - The material cost of the product properties required of a geosyntnetic. for Mirafi HP woven geo?extues are 20 to 50 percent suograde stabilzation applications --high tensile less than that of the geognd alone. they are avail - strength and modulus, high confinement. filtration able in wider roll widths and can be seamed separation, and seam strength—HP Geotextiles tai together to reduce overlap reauirements exceed those for geognds in every category. Mirafi HP geo'exttles save time and money over In every category Mirati HP wove; geotextiles geognds any way you look at 11 exceed the properties of geognds, often by a fact)r of 2 or more In addition, woven geotexti,es providE; THE BOTTOM UNE - While TG Mirafi manufactures separation and filtration functions, and can provide both woven and non -woven geotextlles and multi -directional strengths in excess of 3000 geognds, if you need a geosynthetic product `3) pounds per foot, none of which are possible with for subgrade stabilization applications, we i geognds j recommend woven geotextlles every time. Page 2.05.3(3)-28 March 2016 (MR -98)