SC-Coppell HS-SP000404Ground fasteners:
Use either metal pins with washers, "U"-shaped metal pins or
wooden stakes. Metal pins should be a minimum of I 1 gauge thick-
ness and 6 inches in length; wooden stakes should be a minimum
length of 1 0 inches. For more specific recommendations, please call
Akzo Nobel Geosynthetics or your Enkamat distributbn
E NKAMAT -- Turf Reinforcement Matting
Weights and Dimensions (all values are typical)
ENKAMAT COMPOSITE 7010 7018 7020 7210 7220 7910 7920 MAT
Weight (oz/yd21 14.4 8 8.6 1 2 7.7 ] 1.8 1 2.5 1 6.5 2 1.5
(g/ms) 475 271 292 407 261 400 424 560 730
Thickness (inches) 0.3 0.4 0.7 0.7 0.3 0.6 0.4 0.7 0.75
(cm) 0.76 1 1.8 1.8 0.8 1.5 1 1.8 1.9
Width (inches) 76 39* 39* 39* 39* 39* 39 39 39
(cm) 193 99 99 99 99 99 99 99 99
Length (feet) 55.5 500 277 277 394 197 305 153 216
(meters) 16.9 152 84 84 119 59 92 46 65
Area (yd2) 39 180 1 O0 1 O0 142 71 110 55 78
(ms) 33 150 84 84 119 59 92 46 65
Gross Wt. (lbs) 35 92 53 77 70 55 87 59 107
(kgs) 16 42 24 35 32 25 39 27 49
* -- These Enkamat types are available in five widths in approximately 1 -meter increments.
~'OTE. Contact AKZO NOBEL for full specificatton sheets on all Enkamat products.
~~ MULTi
AK70 NOBEL ·
' PAVE~
AKZO NOBEL GEOSYNTHETICS COMPANY CONFORiv
P.O. Box 1057 ~ ENKA, NC 28728 ~ 1-800-~65-7391 (WITHIN THE U.S.) OR 704-~5-5050 (Ob~YSIDE THE U.S.). FAX: 704-~5-500g. E~CELLEN
Akzo Nobel C~osyntheJ[Jcs Compsny wsrfants thai. ENKA~AT® rneei~s ~he ~ypical physical properties 8nd specifications listed in ~his brochure
AKZO NOBEL EXPRESSLY DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR I~PLIED. INCLUDING BUT
NOT LIMITED TO WARI~NTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE.
Information contained herein regarding applications of ENKAMAT® is of a general nature, and since conditions vary with each site, JJlJJ.
Akzo Nobel makes no guarantee of results or the sufficiency of the information contained herein for the use contemplated.
J
Akzo Nobel's liability under any claim shall be limited to the cost of the ENKAMAT® materials or replacement thereof.
at Akzo Nobel's option. In no event shall Akzo Nobel be liable for any special, incidental or consequential damages
ENKAMAT® is a registered trademark of Akzo Nobel F~bers B.M and is covered by a number ol' U.S. patents. No license is granted or implied by these materials.
Akzo Nobel Geosvnthetics ReW~'
~" 02270/AKZ
9rceme BuyLine 4170
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Eh are laid in
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synthetic
a variety
the specific
;-type terrain
Multiple solutions for:
atural · Ditches
· Slopes
· Pipeline Installations
· Ponds
· Slope Aquifer Interceptors
~swers to , Acid Slopes
· Earthen Dams
~ct LIS. · Storm Channels
, Embankments
· Shoreline Protection
· Landfill Capping
- Landfill Perimeter Ditches
. Spillways
Zoos
le: (704)
,.:,.oo, AKZO NOBEL
Fhrough Ingenuity ~M
X: (704) ~
Erosion Control Matting
Enkamat: Function and Structure
Enkamat is a lightweight, flexible alternative to
rigid concrete, asphalt, and rip-rap systems for
controlling erosion. It is designed for use on slopes,
banks, ditches, channels, spillways, landfills,
shorelines, and other vulnerable erosion-prone
areas. The use of Enkamat allows for creative landscape designs.
Structurally, Enkamat is a three-dimensional
geomatrix of heavy nylon monofilaments fused at
their intersections. Ninety percent of this geomatrix
is open space.
THE ROOT REINFORCING SYSTEM
By providing open space for vegetative root growth,
Enkamat supplements nature's own erosion
control system. It encourages and anchors heavy Before Vegetation Develops,
plant growth which, coupled with the strength - Protects bare ground against erosion by wind
of Enkamat, provides a tough, natural ROOT rain;
REINFORCING SYSTEM (RRS) capable of - Prevents seed washout;
enduring high flow velocities and depths. In - Acts as a dissipator of water energy by creating
effect, Enkamat increases the natural erosion myriad of near bottom eddies;
resistance of vegetation, and the entire ROOT - Causes silt to fill the geomatrix develo
REINFORCING SYSTEM (RRS) acts to dissi- for root development.
pate the energy of flowing water in an efficient and
aesthetically pleasing way. Stabilizes Channels
The ROOT REINFORCEMENT SYSTEM
The Solution That Disappears (RRS) resists the hydraulic lift and forces
When installed properly, Enkamat replaces erosion created by high volume discharges
scars with a uniform vegetative covering, even
where slopes are steep or soil is poor. Unlike con-
ventional rip-rap or concrete, the light-weight
matting itself is buried beneath a natural plant
covering. Enkamat has been used in all but the
most add climates worldwide*and is approved for
erosion control by the Transportation Departments
of more than 30 states.
*Note: for arid solutions, talk to us about ArmaterY
02270/AKZ
~econd. Concentrated lift and shear Anchors Slopes
Would normally tear out grass clumps The RRS adds significantly to the tensile
t distributed over the entire surface area strength of root systems on slopes. In fact, under
REINFORCEMENT SYSTEM. In water-saturated conditions, as soil cohesion and
eddy turbulences are prevented root anchorage strengths approach minima, the
and uprooting of individual roots geomatrix becomes almost the sole support of
of vegetation, over-stressed vegetative stands.
Superior Features of Enkamat
· High Tensile Strength ° Available in 5 Widths
· Low Elongation · Thickness and High Porosity =
wind ~ High Compression Resistance · Large Area Holding Capacity
· Good Contact with Soil (1) Area available For Soil and Root
Interaction with Nylon Filaments
STEM
forces
locities~
reinforce vegetation on slopes greater than IH: 1 V. Enkamat is strong, durable and able to survive rigorous installations.
Enkamat Products are Available in Multiple Widths up to 15q2'
3
Enkamat®for Turf
Enkamat can also revive areas of worn-out or
eroded turf. The old sod is removed with a sod
cutter, then the soil is loosened and fertilized. The
matting is rolled onto the soil, filled with appro-
priate soil mix, and sod installed. Even in high traffic
areas, such as golf courses and athletic fields, the
resilient matting remains open, allowing oxygen
and moisture to reach plant roots.
Installation mat approximately 50/0 before staking;
Enkamat is packaged in rolls that are easy to Enkamat edges should curl up.)
ship, store, and install. No heavy equipment is 3. The side rolls should follow in
needed for installation of matting; a roll can be behind the initial roil. Working outward from
handled by a single worker· ditch center-line, overlap the first roll by 4"
another roll and lay it upslope onto the side
Ditch Lining ~ slope shelf.
4. Proceeding upstream, stake overlaps and mat
Direction of / edges on side slope shelves at 3- foot intervals.
water flow
~ h ~,~,a0 trt,~ dt~,~,~ ...... ..~ ' ~%~ ~- ',, ~ , Upper 5. Repeat steps 3 & 4 with the remaining side
~ · ~ ~ .... '. ,' .x ......... Terminal S~ots roll·
' ' '~ ~ ~' '~ ~ ~";'?;i:'~ :x'' >~""' ~2",~e, th,o~,,- 6. If splicing a new roll is necessary, use 3-foot
, ~ % '~ ; ', / ~,"%'~-,~h"·'~,<-' '-''--~ ~ /. ' vent"tnde~lo~"
· ~ : oo.?~ ~ % //~ / b'~ / / - ",,'o~e,'la'"Oo,,'e;
· ~',,o.~Z~ xx N{l~ r~. ~ /~---------~/' end);,?,., 7. Secure the upstream roll ends in a terminal
~',i~~';'', '~''', - :-' ,/ 8. Back-fill and tamp soil into check slots and
~,?¢).. ~:, ~. ~ .... ~~ upper and lower te~inal slom.
~ ~t:~ ~ ~ . ': X ".:~ ~:~ Side Slope Shelf 9. Distribute seed.
~ ~ ~ ~ ~; ~ X .: Enkamal stoked
~:~', -' x .,~,-~,~.,..,.~s Note: Ple~e consult the Enkamat Erosion
/ ]} ~, ' Check Slot on 4".~he(/: Baek-
~~ '. ~..- ~:,.,t~p ~,t,,,~,o'm, ,o Instruction Manual for complete installation
,,. ........... ,,.en~.,, ,,',~',, ,,,de; specifics.
Smking'~ttem at 25' inten,als. ,'ashmg. ~dter
At Roll Terminal Stake at overlap run-t~[]?nlo:s onto
When roll termi- and eoeh Engo- Enkamat lining-
nares, it is staked mat .strip center: not under it.
over rhe ~' roll
(36"o~rlap) ~ Ground
Overlap ~ Fastenem [' - 2'
4" overlap staked ~ -Minimum 10'
at Y- 5' inlemals ~//// in Lengths
TRIA NGULA R
wooden sulv~
stakes
Lengths deter=
m/ned ~' O'pe soil.
For a typical 8-foot side-slope ditch, three widths ":":" ~'':'?'''''' "" 7.. :'. ' ' '.',' ~...
of Enkamat are installed with a 4-inch overlap,
as follows:
1. Shape and compact ditch to specifications and Upstream TerminalSlot
site so that
dress it is flee of rocB, soil clumps, ,
or vehicle impfinm of any significant size that
would prevent the Enkamat from lying flush to
suWace contours. Then cut side slope shelves and ' .-
check slob as per the above drawing. ... ~' ..
2. Sm~ing downstream, cut te~inal slot (see
drawing) and align the initial roll along the
ditch center-line, s~ke Enkamat into slot, then :.... ·
bac~ll. Roll the mat upstream over refilled
te~inal and stoke as depicted. Then pro~ess Oo~',~tre, m TerminaISIot
upstream with peaked side down, worMng
across the check slo~ and pinning with tempora~
stokes to main~in tension and alignment.
Then tuck mat into slob and stoke. ~ote: Stretch
022701AKZ
BuyLine 4170
amat "S" is a composite geosynthetic that
x)rates a high tenacity polyester geogrid
the entangled filaments of the three dimen-
eomatrix matting. The grid is thermally
to the Enkamat by interlocking the nylon
over the ribs of the Geogrid.
mt "S" can be custom manufactured
one of five tensile members to meet your
~ needs. Tensile strengths range from 1560
lbs/ft.
~rd from Typical cut slope on new highway constrUction.
by4"
~e side
~nd mat
!ntervals.
; side
3-foot
'ninal
;and bo
)n Co~
ti on e ~na,mos s.
Anchorage layer for vegetating steep weathered
rock slopes with Hydromulch.
ASoil grip layer over a flexible membrane in, for
example, landfill capping constrUctions.
Flexible reinforced containment system for use
with Gunite and Shotcrete.
Reinforced VegetatedChannels Maximum Permissible Shear Stres:~
Of Various Channel Linings
waterways will produce a certain amount
of shear stress on the channel lining. A simple
calculation of that shear stress can help to design
the proper protective measures to guard against
the erosion of the channel.
Right: Permissible shear stress of various
channel linings.
Below: Performance data from actual proj-
ects to determine maximum shear stress for
Enkamat products.
2
0
Lining Type
Channel
Note: Enkamat tested w~fh vegetation
Basic Formula to Determine Maximum Shear Stress of a Channel
Unit Weight of Water (62.4 lbs/cu, ft.) x Slope (ft/ft) x Depth (ft.) = Shear Stress (psf)
7010 7020 7220
Shears
Slress V CASE Q A R D S B BfD --QB N
8.56 10 PENNDOT 7020 17.78 1.778 .426 .610 .225 2.57 6.7 3.84 .040
MEASURED EVENT
W/OUT VEGETATION
7.22 15 PENNDOT 7020 9.86 .657 .370 .514 .225 2.41 8.8 4.09 .026
MEASURED EVENT
W/VEGETATION
6.90 10 FHWA, SIMONS + LI 7.90 .790 N/A .790 . 14 N/A N/A 7.90 .048
7010, FLOOD
OVERTOPPING
W/OUT SIG. VEG.
7.05 18 PENNDOT 7020 24.84 1.38 .361 .50 .225 2.76 5.5 9.00 .020
CALCULATED
W/GRASS OR
FULLY SILTED
10.43 9 CARRIBEAN 7020 345.8 38.4 2.089 2.965 .08 12.95 4.4 26.70 .030
AVG. CHANNEL W/UNDER-
LAY*, 10 YEAR
FLOOD
8.50 17.2 WESTERN CANADA 56 .054
HYDRAULICS LAB
PRESSURE CONDUIT,
BERMUDA SOD, 7020
8.21 3.5 MCALPINE CREEK 2000 571.4 9.52 14 .03 34.0 2.4 58.82 .020
7010SIDE SLOPE
8/19/86 EVENT
2.40 5.8 GADOT 7010 36 6.2 .387 1.75 .022 3.55 2.0 10.14 .020
8.24 20,3 CIRIA 7220 24.18 1.191 .283 .33 ,40 4.04 14.95 5.48 .020
FINAL TEST
(2 YR. INST)
LEGEND *NonWoven Needlepunched GEOTEXTILE < 4.0 oz/yd2
V = velocity in ft. per second a x = ¥ DS where ¥ = 62.4 lbs/ft~ D = depth, ft. S = slope, (ft/ft)
Q = quantity rate of flow, cubic ft. per second max.
A = cross-sectional area of flow, square fl.
R = hydraulic radius (manning), feet
D = depth of flow, feet All Enkamat Products are Available
S =slope, feet per feet in Widths up to 15.5'
B = bottom width of equivalent rectangular channel, feet
B/D = ratio, when + 5 use Q/B for discharge intensity
-'~B = discharge intensity, overland flow, cfs/ft
6 N = Manning roughness factor
02270/AKZ
BuyLine 4170
r Stress
~gs control matting replaces rip-rap and concrete for:
Slopes
Used on slopes up to 1.'1 and steeper; requires no heavy equipment to install.
, to 20ft./sec.; mechanically strengthens root
s (pst)
RESISTANCE of Grass
REINFORCED and PLAIN
28 psf) 8 '~
2 10 20
Time (hours)
eTlON INDUSTRY RESEARCH
AND INFORMATION AOSOOlATION
7
All Enkamat products are available in
multiple/widths up to 15.5 feet. Five differs: nt
widths are available. Seams are heat bonded to
Erosion Control Matting , insure uniform strengths.
Short Form Specification:
Matting shall be three-dimensional
geomatrix of heavy nylon monofilaments fused
at their intersections. Ninety five percent of the
geomatrix shall be open space available for soil
and root interaction with filaments.
Matting will have three-dimensional strength
without laminated or stitched layers. Matting
must also meet specific dimensions and physical
properties listed below.
Properties and Dimensions (All values are
typical unless otherwise stated)
ENKAMAT 7010 7020 7210' 7220*
Material
Nylon 6. Available Widths for Enkamat Products
Dimensions 7010 7020 7210' 7220* 1--Wide* 39 inches (3.25
Weight (oz/yd2) 8.0 12.0 7.7 11.8 2--Wide** 76 inches (6.33
Weight (oz/yd2) MARV~ 7.3 ll.i 7.1 10.9 3--Wide* 113 inches (9.42
Thickness (inches) .4 .72 .33 .66 4--Wide** 150 inches (12.5
Width (inches) 39 39 39 39
Roll Length (feet) 500 277 394 197 5--Wide* 187 inches (15.58
Area (yd2/roll) min. 180 100 142 71 *Stock Item ** Special Order
Roll Gross Weight (lbs) 92 77 70 55
, MARV = Minimum Avg. Roll Value which represents the industry standard Design and Installation Assistance
95% confidence level This brochure is intended as a general
Typical Physical Properties** mation piece. For technical help, specific
Tensile Strength-- marion, or the name of our nearest distributor
Length (lbs/ft) 180 245 130 180 please call or write: Akzo Nobel Geos)
Tensile Strength-- Company, P.O. Box 7249, Asheville, North
Width (lbs/ft) 85 120 ll0 300 Carolina 28802, (704) 665-5050
Tensile Elongation--
Length (%) 65 85 80 75 We believe the information contained herein to be reliable and ac
rate for applications of ENKAMAT®. Since conditions vary with each
Tensile Elongation-- site, however, Akzo Nobel makes no guarantee of results and assumes
obligation or liability for such results, the suitability of the material,
Width (%) 60 70 35 30 the information contained herein for the use contemplated, unless
specifically made in writing by Akzo Nobel, or for safet5
*ENKAMAT FLATBACK ages occurring in connection with any installation. Furthermore.
ENKAMAT 7210 and 7220 haven two-dimensional flat Nobel's liability under any claim shall be limited to the cost of ~ ~e 1
This publication is not a license under whiclh to operate and is
open nylon net thermally bonded to one side of the three ENKAMAT materials or replacement thereof, at Akzo Nobel's o; ,~ion. i
dimensional ENKAMAT. intended to suggest infringement upon use of any existing patent,s or
Exposure (for 80% Strength Retention) trademarks.
ENKAMAT is a registered trademark of Akzo Nobel Geosynthetics
Temperature Range --100°F to 250°F Co,npany and is covered by anumberofe, s. patents.
Ph Ranse 3 to 12
**ASTM 1682 strip test procedure modified to obtain filament bond
strength used to indicate tensile properties of Enkamat matting.
Typical physical properties are representative of the product in a full
width application. However, due to the geometry and randomness of the Akzo Nobel Geosynthetics Company
product, some test results may be below the typical values stated. P.O. Box 7249
Minimum average lot values are available upon request. Asheville, NC 2ga02
Telephone (704) 665-5050
Telefax (704) 665-5009