ateromponents &uildingupply, Inc.

MIRAFI® ENGINEERED FILTRATION GEOTEXTILES

PRODUCT DESCRIPTION

Mirafi Engineered Filtration Geotextiles are woven fabrics of monofilament and multifilament yarn construction which are highly UV stabilized. Engineered Filtration Geotextiles have high strengths for durability and survivability; consistent, measurable pore sizes; and high percent open area for long-term clogging resistance and high flow rates. Engineered Filtration Geotextiles are manufactured with highly specialized processes to produce unique physical and hydraulic properties not possible with standard geotextiles, woven or nonwoven.

APPLICATIONS:

Mirafi Engineered Filtration Geotextiles are designed for. Iong-term performance in problematic soil or site conditions to ensure clogging resistance and soil retention in erosion control and subsurface drainage applications. Typical applications include:

Underneath rip rap or concrete revetment systems along inland waterways and coastal shorelines;
Underneath armor systems; protecting spillways and embankment dams from overtopping flow;
Encapsulating cut-off drains and collection systems surrounding landfills, within doms, and adjacent to roadways and other critical structures;
Encapsulating leachote collection systems under landfills while mainlining long-term clogging resistance;
Encapsulating edge drains for critical structures in problematic soils.

ADVANTAGES

Mirafi Engineered Filtration Geotextiles offer unique features and benefits over traditional filtration and drainage fabrics. Some of these advantages include:

Resists clogging while maintaining flow rate in high gradient and dynamic flow conditions;
High survivability roting in aggressive installation and loading conditions such as back dumping of large rip rap or underwater placement;
Resistant to chemicals in aggressive landfill environments;
Highly uniform opening size lAOSI;
Maintains high long-term flow rates;
Exhibits high percent open area;

Flexible manufacturing allows custom fabric production to meet site-specific soil conditions. Additionally,

Engineered Filtration Geotextiles are capable of being fabricated into customized panels.

Technical Data

Property	Method	Unit	Minimum Average Roll Values
Property	Method	Unit	700X	700XG	70/20	40/10	40/30A	HP550
Grab Tensile Strength - MD	ASTM D 4632	kN (lbs)	1.65 (370)	1.62 (365)	1.22 (275)	1.18 (265)	1.45 (325)	1.89 (425)
Grab Tensile Strength - CD	ASTM D 4632	kN (lbs)	1.11 (250)	.089 (200)	1.74 (390)	1.13 (255)	.089 (200)	1.56 (350)
Grab Tensile Elongation -MD	ASTM D 4632	%	16	24	15	16	26	21
Grab Tensile Elongation - CD	ASTM D 4632	%	15	10	30	15	15	21
Mullen Burst Strength	ASTM D 3786	kPa (PSI)	3307 (480)	3445 (500)	4065 (590)	3445 (500)	2756 (400)	4789 (695)
Puncture Resistance	ASTM D 4833	kN (lbs)	.6 (135)	.511 (115)	.65 (145)	.56 (125)	.51 (115)	.89 (165)
Trapezoid Tear Strength - MD	ASTM D 4533	kN (lbs)	.45(100)	.511(115)	.47(105)	.36(80)	.40(90)	.65(145)
Trapezoid Tear Strength - CD	ASTM D 4533	kN (lbs)	.27(60)	.33(75)	.62(140)	.31(70)	.22(50)	.56(125)
Apparent Opening Size	ASTM D 4751	mm(U.S. Standard Sieve)	.21(70)	.42(40)	.25(60)	.42(40)	.42(40)	.42(40)
Per cent Open Area	COE-02215	%	4	10	10	10	20	6
Permittivity	ASTM D 4491	sec ^-l	.28	1.36	.506	.95	2.14	.96
Flow Rate	ASTM D 4491	l/min/m²^(Gal/min/ft²⁾	735 (18)	4086 (100)	1430 (35)	2860 (70)	5924 (145)	2860 (70)

MD - Machine Direction; CD - Cross-machine Direction

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