Exhibit B _ Technical Specifications.pdf

1 GENERAL

1.1 SUMMARY

A. This section's work shall consist of furnishing all materials, equipment, and labor necessary for the installation of a High-Performance Turf Reinforcement Mat (HPTRM) for erosion control and protection on stable soil slopes.

1.2 RELATED SECTIONS

A. SECTION [01 33 00-SUBMITTAL PROCEDURES

B. SECTION [31 00 00-EARTHWORK

C. SECTION 31 05 19-GEOTEXTILE

D. SECTION [31 25 00-EROSION AND SEDIMENTATION CONTROLS]

E. SECTION 32 92 19-SEEDING AND SODDING

1.3 UNIT PRICES

A. Method of Measurement: By the square yard (or square meter - as indicated in contract documents)

The total square yards (square meter) for measurement shall be based on the area in which the HPTRM will be installed plus percentages to take into account seam overlapping, trenching, curves, waste, etc. The following may be used as guidance in determining the total square yards (square meters) for measurement.

Description Measurement Units

1. Installation Area Shape of area to be installed (i.e. Length X Width)

Square Yard (Square Meter)

2. Overlaps, Trenching, Waste, etc.

10% of Installation Area Square Yard

(Square Meter)

TECHNICAL SPECIFICATIONS

PROPEX Pyramat for slopes

3. Curves, radius (if applicable) 5% of Installation Area

Square Yard (Square Meter)

Total Area Installation Area + 10% + 5% (if applicable)

Square Yard (Square Meter)

The total area for measurement shall include the following components:

1. High Performance Turf Reinforcement Mat (HPTRM), and

2. Securing Pins

B. Basis of Payment: By the square yard (or square meter - as indicated in contract documents) installed.

1.4 REFERENCES

A. American Society for Testing and Materials (ASTM):

1. D 4354 – Standard Practice for Sampling of Geosynthetics and Rolled Erosion Control Products (RECPs) for Testing.

2. D 4355 – Standard Test Method for Deterioration of Geotextiles by Exposure to Light, Moisture and Heat in a Xenon Arc Type Apparatus.

3. D 4439 - Standard Terminology for Geosynthetics.

4. D 4759 – Standard Practice for Determining the Specification

Conformance of Geosynthetics.

5. D 4873 – Standard Guide for Identification, Storage, and Handling of Geosynthetic Rolls and Samples.

6. D 6524 – Standard Test Method for Measuring the Resiliency of Turf

Reinforcement Mats (TRMs).

7. D 6525 – Standard Test Method for Measuring Nominal Thickness of Rolled Erosion Control Products.

8. D 6567 – Standard Test Method for Measuring the Light Penetration of a Rolled Erosion Control Product (RECP).

9. D 6575 – Standard Test Method for Determining Stiffness of Geosynthetics Used as Turf Reinforcement Mats (TRMs).

10. D 6818 – Standard Test Method for Ultimate Tensile Properties of Rolled Erosion Control Products.

B. Geosynthetic Accreditation Institute - Laboratory Accreditation Program (GAI-

LAP).

C. Greenhouse Gas (GHG) Protocol

D. International Standards Organization (ISO):

1. 9001:2015 – Quality Management System Certification.

2. 14001:2015 – Environmental Management System Certification

3. 14064-3:2006 – Environmental Management – Life Cycle Assessment

4. 17025:2005 – Laboratory Testing and Calibration

E. Publicly Available Specification (PAS) 2050:2011 – Specification for the assessment of the life cycle greenhouse gas emissions

F. Federal Motor Vehicle Safety Standard (FMVSS) 302 – Specification for the assessment of the material’s burn resistance capabilities.

1.5 DEFINITIONS

A. Certificate of Compliance (COC): An official document certified by an authorized representative within the manufacturer’s company that the manufactured synthetic turf reinforcement mat product(s) meet designated property values as manufactured in a facility having achieved ISO 9001:2015 certification and tested in accordance with GAI-LAP procedures.

B. High Performance Turf Reinforcement Mat (HPTRM): A long-term, non-degradable RECP composed of ultraviolet (UV) stabilized, non-degradable, synthetic fibers, nettings and/or filaments processed into three-dimensional reinforcement matrices designed for immediate and permanent protection for erosion control applications where design flows exert velocities and shear stresses that exceed the limits of mature natural vegetation. The HPTRM MARV tensile strength per ASTM D-6818 is 3000 lbs/ft in the weakest principal direction.

C. Manufacturer: Entity that produces synthetic HPTRM products through a process directly utilizing obtained raw materials, in a facility owned and operated by said entity, using equipment and assemblies owned and operated by said entity, subject to a certified Manufacturing Quality Control (MQC) Program. Upon completion of production, the manufacturer may sell the HPTRM product(s) directly to the customer, or through a vendor entity.

D. Manufacturing Quality Control (MQC) Program: A certified and documented program initiated and operated by the manufacturer that outlines the operational techniques and activities which sustain a quality of the synthetic HPTRM product(s) that will satisfy given needs.

E. Minimum Average Roll Value (MARV): Property value calculated as typical minus two standard deviations. Statistically, it yields a 97.7 percent degree of confidence that any sample taken during quality assurance testing will exceed value reported.

F. Rolled Erosion Control Product (RECP): A temporary degradable or long-term non-degradable material manufactured or fabricated into rolls designed to protect the soil surface, reduce soil erosion and if needed assist in the growth, establishment and protection of vegetation.

G. Securing Pin: A device designed to secure the HPTRM in place during installation, or until the establishment of vegetation occurs.

H. Trilobal Monofilament Yarn: A multi-dimensional polymer fiber with at least three points, providing increased surface area and grooves/channels along the fiber to capture additional moisture and sediment to enhance vegetative growth.

I. Typical Roll Value: Property value calculated from average or mean obtained from test data.

J. Vendor: An entity that provides high performance turf reinforcement mat product(s) to a customer, on behalf of an independent manufacturer. A vendor does not manufacture the actual engineered earth armoring solution product(s) and is not subject to certified MQC Program provisions.

1.6 SUBMITTALS

A. Submit under provisions of Section 01 33 00

1. Qualifications:

The following documentation shall be submitted to the engineer of record and/or project owner for review and approval before installation.

a) A Certificate of Compliance (COC) stating the name of the HPTRM manufacturer, product name, style, chemical compositions of filaments or yarns and other pertinent information to fully describe the HPTRM. The COC shall state that the furnished HPTRM meets the requirements of the specification and shall be attested to by a person having legal authority to bind the Manufacturer.

b) The Manufacturer’s Manufacturing Quality Control (MQC) Program assures compliance with the specification’s requirements.

c) A project list demonstrating a documented history of HPTRM installations totaling more than 2,000,000 square yards, with over 500,000 square yards having been installed in the marketplace for more than five (5) years. Past project documentation submitted for evaluation shall include project name, date of installation, and size of the project.

d) A certification demonstrating that the HPTRM is manufactured in a facility that has been ISO 14001 certified for measuring environmental impact and continuously looking for ways to improve it for a minimum of ten (10) years.

e) A certification demonstrating that the HPTRM is manufactured in a facility that has been ISO 9001:2015 certified and tested in a laboratory that has been both GAI-LAP and ISO 17025:2005 certified.

f) Third party / Independent Testing values demonstrating UV resistance testing for two consecutive years including most recent year. Testing and reporting of the results shall follow ASTM D-4355, showing the percent tensile strength retained in both machine and cross-machine direction.

g) Documentation of functional longevity for the HPTRM demonstrating the material’s durability in the field. The documentation shall demonstrate a minimum retained tensile strength of 70% per ASTM D-6818 after a minimum of ten (10) years of exposure in an area having a minimum solar radiation of

21.70 MJ/m2-day. The documentation shall include photos and date of the initial installation and field sampling, and the test results of the field sampling.

h) A certification demonstrating that the HPTRM has been evaluated and certified by an independent third party to have a maximum cradle-to-grave carbon footprint of 2.7 kg CO2e/m2 when tested per GHG Protocol, ISO 14064-3:2006, and PAS 2050:2011.

i) Documentation of full-scale flume testing demonstrating the required performance when subjected to at least 0.5 hrs of continuous flow for the unvegetated HPTRM, partially vegetated HPTRM, and fully vegetated HPTRM.

j) Documentation demonstrating that in a vegetated state, the HPTRM can perform when subjected to wave overtopping simulations, performed by Colorado State University (CSU), and authorized and directed by the U.S. Army Corps of Engineers

(USACE).

1.7 DELIVERY, STORAGE, AND HANDLING

A. HPTRM labeling, shipment and storage shall follow ASTM D 4873.

B. Product labels shall clearly depict the manufacturer or supplier name, style name, and roll number.

C. Each shipping document shall include a notation certifying that the material is in accordance with the manufacturer’s certificate.

D. Each HPTRM roll shall be wrapped with a material that will protect the RECP from damage due to shipment, water, sunlight, and contaminants. Individual roll wrapping will not be required for HPTRMs exceeding the UV Resistance requirements per ASTM D-4355 in Section 2.2.A.6. The protective wrapping shall be maintained during periods of shipment and storage.

E. During storage, HPTRM rolls shall be elevated off the ground and adequately covered to protect them from the following: Site construction damage, extended exposure to UV radiation, precipitation, chemicals that are strong acids or strong bases, flames, sparks, temperatures in excess of 160 degrees F (71 degrees C) and any other environmental condition that might damage the HPTRM.

1.8 QUALITY ASSURANCE SAMPLING, TESTING, AND ACCEPTANCE

A. A HPTRM shall be subject to sampling and testing to verify conformance with this specification. Sampling for testing shall be in accordance with ASTM D-4354.

B. Acceptance shall be in accordance with ASTM D-4759 based on testing of either conformance samples obtained using Procedure A of ASTM D-4354 or based on manufacturer’s certifications and testing of quality control samples obtained using Procedure B of ASTM D 4354.

C. Quality Assurance Sampling and Testing shall be waived for ISO 9001:2015 Certified Manufacturing Facilities. Documentation of ISO 9001:2015 Certification shall be provided per the requirements of Section 1.6.A.

2 PRODUCTS

2.1 MANUFACTURERS

A. All components of the High-Performance Turf Reinforcement Mat solution shall be furnished by a single manufacturer as a complete system.

B. Approved High Performance Turf Reinforcement Mat Manufacturers

1. Propex Operating Company, a Solmax Company

4019 Industry Drive Chattanooga, TN 37416

(800) 621-1273

C. Approved High Performance Turf Reinforcement Mat:

1. PROPEX Pyramat 75 High Performance Turf Reinforcement Mat (HPTRM)

D. Alternative HPTRM Manufacturers:

1. Alternate manufacturers seeking pre-approval shall be submitted to the engineer of record and/or owner at least ten workdays before the bid date and must meet the requirements outlined in this document.

2. Alternate manufacturers meeting the material specifications within Section 2 seeking pre-approval shall submit the following for evaluation.

a) Documentation demonstrating a history of installations designed for non-structural slope protection and/or erosion control meeting the requirements of Section 1.6.A.1.c.

b) Documentation demonstrating local representation within the state in which the project is being constructed.

c) Documentation demonstrating the alternative engineering design for slope protection and/or erosion control considered the soil properties, erosion potential, hydrology, hydraulics, and vegetation requirements. The following shall be submitted:

d) Overall alternative HPTRM design methodology

e) Input parameters

f) Calculations / Model output

g) Factor of Safety to support the erosion control design; with the conditions analyzed and documented for the proposed project

h) Alternative HPTRM product sample including all components.

3. Alternate manufacturers seeking pre-approval shall have a manufacturer’s representative present at the pre-bid meeting.

4. Alternate manufacturers that do not provide documentation meeting or exceeding the requirements of Section 1.6.A will not be approved.

2.2 MATERIALS

A. HPTRM:

1. A three-dimensional, high tensile strength, long term non-degradable lofty woven polypropylene RECP specially designed for erosion control applications that exhibits very high interlock and reinforcement capacity with both soil and vegetative root systems.

2. A homogeneous woven matrix composed of Trilobal monofilament yarns heat-set and woven into uniform configuration of resilient pyramid-like projections to improve interlock and minimize yarn displacement around pins, which also results in greater flexibility for improved conformance to uneven surfaces.

3. A material not comprised of layers, composites, or discontinuous materials, or otherwise loosely held together by stitched or glued netting.

4. Material Properties:

Property Test Method Test Parameters Units Property

Requirement Thickness 1 ASTM D-

6525 Minimum in (mm)

0.40 (10.2)

Light Penetration 1

(% Passing)

ASTM D-

6567 Maximum percent 10

Tensile Strength

ASTM D-

6818 Minimum lb/ft

(kN/m) 4,000 x 3,000 (58.4 x 43.8)

Tensile Elongation 1

ASTM D-

6818 Maximum percent 40 x 35

Resiliency 1 ASTM D- 6524 Minimum percent 80

Flexibility 2, 3 ASTM D- 6575 Maximum in-lb

(mg-cm) 0.534

(615,000)

UV Resistance 2 ASTM D- 4355 Minimum percent 90 at 3,000 hrs 4

90 at 6,000 hrs Burn Rate 2 FMVSS 302 Maximum ft/min. 1 Time to Extinguish 2 FMVSS 302 Maximum sec. 1

Carbon Footprint 2

ISO 14064-3

GHG

Protocol

PAS

2050:2011

Maximum Kg CO2e 2.7 per 1 m2

Note:

5. Minimum Average Roll Value (MARV).

6. Typical Value.

7. A smaller value for flexibility denotes a more flexible material.

8. Third party / Independent Testing values must be provided showing UV resistance testing for two consecutive years including most recent year.

9. Hydraulic Performance Properties:

a) Flume Testing: The HPTRM must meet the following at a minimum when subjected to at least 0.5 hours of continuous flow producing the following conditions.

1) Unvegetated HPTRM Permissible velocity: 9 ft/sec (2.7 m/sec) Permissible shear stress: 2.8 psf (130 Pa)

2) Partially Vegetated HPTRM Permissible velocity: 15 ft/sec (4.6 m/sec) Permissible shear stress: 8 psf (383 Pa)

3) Fully Vegetated HPTRM Permissible velocity: 25 ft/sec (7.6 m/sec) Permissible shear stress: 16 psf (766 Pa)

b) Wave Overtopping Testing: In a vegetated state, the HPTRM must demonstrate the following at a minimum when subjected to wave overtopping simulations, performed by Colorado State University (CSU), and/or as authorized and directed by the U.S. Army Corps of Engineers (USACE).

Each type of HPTRM product shall be subject to a single wave overtopping simulation down the flume on one set of trays (linear and angled sections) at 4.0 cfs/ft for the duration equivalent to 3 test hours (~6 elapsed hours).

Passing this wave overtopping test is defined as surviving the three (3) equivalent test hours without visible damage.

Failure is defined by 0.2 ft. (0.06 m) or more of soil/grass erosion over a 4 ft2 (0.37 m2) area.

10. Functional Longevity: The HPTRM shall have a documented installation history demonstrating a minimum retained tensile strength of 70% per ASTM D-6818 after a minimum of ten (10) years of exposure to a minimum solar radiation of 21.70 MJ/m2-day.

11. Environmental Impact: The HPTRM shall be evaluated and certified by an independent third party to have a maximum cradle-to-grave carbon footprint of 2.7 kg CO2e/m2 when tested per GHG Protocol, ISO 14064- 3:2006, and PAS 2050:2011.

12. Manufacturing Impact: The HPTRM shall be manufactured in an ISO 14001 facility certified for measuring environmental impact and continuously looking for ways to improve it for at least ten (10) years.

13. Manufacturing Quality Control: Testing shall be performed at a laboratory accredited by GAI-LAP for tests required for the HPTRM, at frequency exceeding ASTM D-4354, with following minimum acceptable testing frequency:

Property Test Frequency yd2 (m2)

Thickness 1/14,700 (1/12,291) Light Penetration (% Passing) 1/14,700 (1/12,291)

Tensile Strength 1/14,700 (1/12,291)

Tensile Elongation 1/14,700 (1/12,291)

Resiliency 1/14,700 (1/12,291)

Flexibility 1/14,700 (1/12,291)

Burn Rate 1/14,700 (1/12,291)

Time to Extinguish 1/14,700 (1/12,291)

UV Resistance Annually

2.3 SECURING DEVICES

A. Securing Pins:

1. Securing pins should be at least 0.20 in. (5 mm) diameter steel with a 1.5

in. (38 mm) steel washer at the pin's head.

2. Length: 12 to 24 inches (300 to 600 mm) as depicted on the drawings to provide sufficient ground penetration for pullout resistance.

3. Heavier metal securing pins and/or stakes may be required in rocky soils

4. Depending on soil pH and design life of the securing pin, galvanized or stainless-steel securing pins may be required.

3 EXECUTION

3.1 PREPARATION

A. The area(s) to be treated with the HPTRM shall be cleared, grubbed, graded and compacted as indicated on the construction plans and technical specifications or as directed by the Engineer of Record.

B. The placement of new fill may require soil placed to be keyed into the existing slope and compacted in horizontal lifts per the Engineer of Record. To ensure compaction at the face of the slope, the slope face may be over-built, compacted in lifts, and then regraded or trimmed to the final grade. All fill shall be placed and compacted per the project’s earthwork technical specifications.

C. The subgrade shall be uniform and smooth. Large rocks, soil clods, vegetation, and other sharp objects shall be removed before installation of the HPTRM. This will assist the HPTRM in maintaining direct contact with the soil surface.

D. Construct a perimeter trench around the area(s) limits to be treated with the HPTRM as follows:

1. Excavate a Crest of Slope (COS) trench a minimum of 3 ft. (900 mm) horizontal over the crest of the slope when possible. Trench dimensions shall be 12 in. (300 mm) wide by 12 in. (300 mm) deep.

2. Excavate a Toe of Slope (TOS) trench a minimum of 3 ft. (900 mm) horizontal over the crest of the slope when possible. Trench dimensions shall be 12 in. (300 mm) wide by 12 in. (300 mm) deep.

3. Excavate a side trench perpendicular to the contours at each end of the area to be treated (longitudinal limits). Trench dimensions shall be 6 in.

(150 mm) minimum wide by 6 in. (150 mm) minimum deep.

E. Refer to Section 3.2 for the appropriate vegetation establishment method.

3.2 VEGETATION ESTABLISHMENT

A. Establish permanent vegetation, where feasible, to assist in the long-term performance of the HPTRM and the control of erosion.

B. A site-specific soil test shall be conducted to determine the recommended soil amendments required to establish permanent vegetation.

C. The type and method of vegetation establishment should be unique to the project's geometry, location, climate, season, topography, soils, seed type, etc.

and shall be as directed per one of the following:

1. Construction plans

2. Technical Specifications

3. Manufacturer’s HPTRM submittal

4. As directed by the Engineer of Record

5. As directed by the project owner.

D. Water and/or irrigate seeded/sodded areas as needed to establish and maintain permanent vegetation until the desired vegetative density has been achieved.

E. Rubber-tired or rubber-tracked vehicles shall be used, and sharp turns avoided.

No heavy and/or metal-tracked equipment or sharp turns shall be permitted on the installed HPTRM. Foot traffic and construction equipment shall be avoided over the HPTRM if loose or wet soil conditions exist.

3.3 INSTALLATION

A. Install HPTRM at elevations and alignments indicated.

B. Beginning at the lower elevation end (down gradient) area, place the initial end of the first roll of HPTRM into the COS trench and secure it with securing pins. The securing pins shall be placed at 12 in. (300 mm) intervals.

C. Unroll the HPTRM down the slope.

D. Secure the HPTRM to the slope face with the securing pins driven flush with the HPTRM at the designated frequency based on the slope protection and/or erosion control requirements.

E. Position adjacent up gradient rolls in same manner, overlapping down gradient rolls a minimum of 3 in. (75 mm) until the armoring limits are completed.

F. Secure the overlaps with securing pins placed at 12 in. (300 mm) intervals.

G. Secure the HPTRM end in the TOS and side (longitudinal limits) trenches with securing placed at 12 in. (300 mm) intervals.

H. Backfill and compact the trenches with specified soil or as directed by the earthwork technical specifications or as directed by the Engineer of Record.

I. Alternate installation methods must be approved by the Engineer of Record and manufacturer prior to execution.

J. Refer to Section 3.2 for the appropriate vegetation establishment method.

END OF SECTION

© 2024 Solmax Americas

Properties Test Method English Metric

Origin of material

% U.S. Manufactured 100% 100%

Environmental Impact

Carbon Footprint GHG Protocol

ISO 14064:2006

PAS2050:2011

2.7 kg CO2e/m2

Physical Properties

Mass/Unit Area 4 ASTM D6566 14.0 oz/sy 475 g/m2

Thickness 2 ASTM D6526 0.40 in 10.2 mm

Light Pepetration (% Passing) 3 ASTM D6567 10%

Color Visual Green or Tan

Mechanical Properties

Tensile Strength 2 ASTM D6818 4,000 x 3,000 lb/ft 58.4 x 43.8 kN/m

Elongation 2 ASTM D6818 40 x 35%

Resiliency 2 ASTM D6524 80%

Flexibility 4 ASTM D6575 0.534 in-lb 616,154 mg-cm

Endurance

UV Resistance % Retained at 3,000 hrs 4 ASTM D4355 90%

UV Resistance % Retained at 6,000 hrs 4 ASTM D4355 90%

UV Resistance % Retained at 10,000 hrs 4 ASTM D4355 85%

Fire Resistance

Burn Rate FMVSS 302 < 1 ft/min.

Time to Extinguish FMVSS 302 < 1 sec.

Performance

Velocity (Vegetated) 4, 5 Large Scale 25 ft/s 7.6 m/s

Shear Stress (Vegetated) 4, 5 Large Scale 16 lb/ft2 766 Pa

Manning’s n (Unvegetated) 4, 6 Calculated 0.028

Seedling Emergence 4 ASTM D7322 619%

Roll Sizes

8.5 ft x 120 ft

15.0 ft x 120 ft

2.6 m x 36.6 m

4.6 m x 36.6 m

NOTES:

(1) The property values listed above are effective 05/01/2023 and are subject to change without notice. Values represent testing at time of manufacture.

(2) Minimum average roll values (MARV) are calculated as the typical minus two standard deviations. Statistically, it yields a 97.7% degree of confidence that any samples taken from quality assurance testing will exceed the value reported.

(3) Maximum Average Roll Value (MaxARV), calculated as the typical plus two standard deviations. Statistically, it yields a 97.7% degree of confidence that any sample taken during quality assurance testing will meet to the value reported.

(4) Typical average values shown.

(5) Maximum permissible velocity and shear stress has been obtained through vegetated testing programs featuring specific soil types, vegetation classes, flow conditions, and failure criteria. These conditions may not be relevant to every project nor are they replicated by other manufacturers. Please contact Solmax for further information.

(6) Calculated as typical values from large-scale flexible channel lining test programs with a flow depth of 6 to 12 inches.

PROPEX Pyramat 75

PROPEX® Pyramat® 75 high performance turf reinforcement mat (HPTRM) is a three-dimensional, lofty, woven polypropylene geotextile designed for erosion control applications on steep slopes and vegetated waterways. Its matrix is composed of monofilament yarns featuring patented technology woven into a uniform configuration of resilient pyramid-like projections. The material exhibits high interlock and reinforcement capacity with soil and root systems and promotes seedling emergence. Pyramat 75 features a proprietary ultraviolet stabilizer package, high tensile strength, and superior hydraulic performance, to provide an expected design life up to 75 years.

It is engineered to mitigate fire risk and increase the resilience of wildfire prone areas using non-halogen fire retardant technology. Pyramat 75 is available in green or tan. Pyramat 75 conforms to the property values listed below1 and is manufactured at a Solmax facility with ISO 9001:2015 and ISO 14001:2015 certifications. Solmax performs internal Manufacturing Quality Control (MQC) tests that have been accredited by the Geosynthetic Accreditation Institute – Laboratory Accreditation Program (GAI-LAP).

Solmax is not a design or engineering professional and has not performed any such design services to determine if Solmax’s goods comply with any project plans or specifications, or with the application or use of Solmax’s goods to any particular system, project, purpose, installation, or specification.

REV 0123

PROPEX

E. Refer to Section 3.2 for the appropriate vegetation establishment method.