synthetic_turf_spec.pdf

SECTION 32 92 25

SYNTHETIC TURF

09/09

PART 1 GENERAL

1 . 1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

ASTM INTERNATIONAL (ASTM)

ASTM D 1335

ASTM D 2265

ASTM D 2859

ASTM D 4355

ASTM D 4491

ASTM D 4533

(2005) Standard Test Method for Tuft Bind of Pile Yarn Floor Coverings

(2006) Standard Test Method for Dropping Point of Lubricating Grease Over Wide

Temperature Range

(2006) Ignition Characteristics of Finished Textile Floor Covering Materials

(2007) Deterioration of Geotextiles from Exposure to Light, Moisture and Heat in a

Xenon-Arc Type Apparatus

(1999a; R 2004el) Water Permeability of Geotextiles by Permittivity

(2004) Trapezoid Tearing Strength of Geotextiles

ASTM D 4632 (2008) Grab Breaking Load and Elongation of Geotextiles

ASTM D 475: (2004) Determining Apparent Opening Size of a Geotextile

ASTI"] D 4833 (2007) Index Puncture Resistance of Geotextiles, Geomembranes/ and Related

Products

ASTH D 5034

ASTM D 5848

ASTM D 6241

(2009) Breaking Strength and Elongation of Textile Fabrics (Grab Test)

(2007) Standard Test Method for Mass Per

Unit Area of Pile Yarn Floor Coverings

(2009) Standard Test Method for the Static Puncture Strength of Geotextiles and

Geotextile-Related Products Using a 50-mm

Probe

ASTM F :-015 (2003) Relative Abrasiveness of Synthetic Turf Playing Surfaces

ASTM F 1551 (2009) Standard Test Methods for Comprehensive Characterization of

Synthetic Turf Playing Surfaces and

Materials

ASTM F 1939 (2007 el) Standard Specification for Shock-Absorbing Properties of North

American Football Field Playing Systems as

Measured in the Field

ASTM F 2117 (2001) Standard Test Method for Vertical Rebound Characteristics of Sports

Surf ace/Ball Systems; Acoustical Measurement

ASTM F 2157 (2009) Standard Specification for Synthetic Surfaced Running Tracks

1.2 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittais not having a "G" designation are for Contractor Quality Control approval. The following shall be submitted in accordance with Section

01 33 00.00 50 SUBMITTAL PROCEDURES:

SD-03 Product Data

Supplier List PVC (Polyvinyl Chloride)Drainage Pipe Geotextiie fabric Warranty

SD-04 Samples

Synthetic Turf

SD-05 Design Data

Aggregate base course sieve analysis

Aggregate finish course sieve analysis

SD-06 Test Reports

Geotextile fabric

SD-07 Certificates

Aggregate Material Certificates

Aggregate supplier must certify that all material delivered to site meets requirements as specified herein.

1 .1 GENERAL

The following specifications pertain to the physical training synthetic turf surface as shown and detailed on CG102 and shall be regarded as minimum standards for design and construction. The synthetic surface shall be manufactured / provided by General Sports Venue or approved equivalent.

Any variations shall be approved by General Sports Venue, Engineer of

Record/ and/or the project COR prior to execution.

1.4 WARRANTY

The manufacturer shall provide a warranty against defects in material and workmanship for a period of no less than ten years.

PART 2 PRODUCTS

2.1 SYNTHETIC TURF

The contractor shall provide 18/500 net square feet of low maintenance synthetic turf surface per physical training pit (PT Pit)/ comparable to a

2" extruded monofilament synthetic turf surface with sand/rubber infill or an approved equivalent. See Article 3.7, MINIMUM REQUIREMENTS/ for all ininimum requirements.

2.2 AGGREGATE FINISH COURSE

The aggregate finish course shall compile with all sections shown on sheet

CG102. The minimum top section shall consist of 1 to 1-1/2 inches of No. 10 screens rolled into the aggregate base section as shown on sheet CG102.

The final surface shall be smooth and reasonably safeguarded from all sharp edges from the aggregate base section.

2.3 AGGREGATE BASE COURSE

The aggregate base course shall compile with all sections shown on sheet

CG102. The minimum drainage section shall hall consist of a minimum of 2 inches of VDOT No. 21 stone & 6 inches of VDOT No. 57 stone (from top to bottom) and placed over a woven geotextile fabric. The base course section shall be placed and compacted in a uniform manner as not to diminish the typical 40% void ratio produced by the above referenced aggregate section.

Rounded stone is not permitted for the base course section.

2.4 WOVEN GEOTEXTILE FABRIC UNDERLAYMENT

The Contractor shall provide a woven geotextile underlayment between the compacted sub-gracte and the aggregate base course section; see sheet CG102 for additional details. See Article 3.7, MINIMUM REQUIREMENTS/ for all minimum geotextile underlayment requirements.

2.5 SUBGRADE

The sub-grade of each PT Pit, if in fill section/ shall be compacted to 95% maximum dry density per ASIM D 1567.

2.6 DRAINAGE PIPE

All drainage pipe shall be Polyvinyl Chloride (PVC).

PART 3 EXECUTION

3.1 GENERAL

All activities are to be sequenced properly and completed in a timely fashion. All measures must be taken to ensure a safe jobsite per all applicable guidelines. All existing conditions anct/or new work in place within the job limits must be maintained at all times. Any damage to said ;

materials will be the sole responsibility of the site work contractor. :

3.2 EXCAVATION I

I I

3.2.1 Survey !

Solicit the services of a licensed surveyor to establish grade and control , points necessary to complete the scope of work. Maintain such markings I throughout the duration of the project. \

3.2.2 Underground Utilities

Identify and mark all underground utilities prior to commencement or work.

Utilize the services of a utility locating company if available.

3.2.3 Laser Grading

As determined necessary by the Contractor, laser guided machinery will be required to achieve the subgrade elevation as indicated on the Contract

Documents. Subgrade must be achieved by laser grading to a ^" tolerance over a twenty-five foot continuous span. The subgrade must be compacted to achieve 95% maximum dry density in fill sections only.

3.3 GEOTEXTILE FABRIC

3.3.1 Delivery

Geotextile fabric must be delivered to site in manufacturer's wrapping and must stay wrapped until placement .

3.3.2 Approval

Do not commence installation unless subgrade has been approved by

Contractor's Geotechnical Engineer .

3.3.3 Overlapping

Geotextile fabric must be overlapped per the manufacturer's recommendations.

3.3.4 Damage

If geotextile fabric becomes damaged during installation remove/ replace and/or patch per manufacturer's recommendations.

3.3.5 Exposure to Elements

Do not leave geotextile fabric exposed to the elements for more than fourteen days. Aggregate is to be placed within that time frame.

3.4 DRAINAGE

3.4.1 Collector Drain

Collector drain is to be 8 inches, or as indicated on the Contract

Documents.

Pipe to be installed at 0.5% to allow for drainage. Location of outlet structure must be determined prior to installation. The point closest to the outlet structure will be the low point of the pipe within the excavation perimeter.

The trench for the collector drain must be lined independently with geotextile fabric allowing on overlap from the field.

Free draining stone must be placed and compacted properly around the collector pipe to the elevation of the subgrade.

All connections are to be made with the manufacturer's recommendations.

Damaged piping is not be utilized and will be removed from site.

3.5 AGGREGATE BASE COURSE

Place only approved aggregate to a depth as indicated in the Contract

Documents.

Do not drive equipment over geotextile fabric in place.

Do not stockpile material in a central location and move to perimeter.

Material shall not be moved more than 50 feet from final location. Failure to do so will result in a separation of the gradations and a general lack of uniformity in the base.

Laser guided machinery will be required to achieve the sub-grade elevation as indicated on the Contract Documents. Laser grade to a 1^" tolerance over a twenty five foot continuous span. A 0.5% slope from centerline of field to nailer must be maintained. The sub-grade must be compacted to achieve 95% of the maximum density as determined by ASTM D 698. Sub-grade must have the required planarity to mirror that of the finish course.

Compaction is to be achieved by using a vibratory roller.

3.6 AGGREGATE FINISH COURSE

Place only approved aggregate to a depth of no more than 1" once compacted.

A broadcast method is preferred for this application.

Compaction is to be achieved by using a vibratory roller. Aggregate shall be wetted during the compaction process. The finished course shall be free of all impressions, roller marks^ etc.

Laser grade to achieve the desired elevation to a tolerance of 1/8" over a

25 foot continuous span. Failure to achieve such requirements will result in re-grading the unacceptable areas of the base.

Solicit the services of a licensed surveyor to verify elevations and planarity. Results shall be made available to the artificial turf installer

Prior to demobilization/ Gthe artificia]. turf installer must approve the finish course. Site contractor may leave no more than 1/?- yard of finish course aggregate for repairs.

3.7 MINIMUM REQUIREMENTS

3.7.1 Synthetic Turf Minimum Requirements

MATERIALS

Primary Yarn Polymer

Yarn Cross-Section

Standard Color

UV Stablized

Fabric Construction

Face Primary BAcking

Coating Type

Primary Yarn Denier

Primary Yarn Polymer

IDENTIFICATION

100% Polyethylene

Slit Film

Sport Green

Yes

Tufted

38 oz.

Polyurethane

100% PE

FINISH FABRIC

NOMINAL SPECIFICATION

Fiber Denier

Pile Height (minimum)

Pile Height (maximum)

Pile Ribbon Face Weight

Fiber Thickness

Primary Weight Backing

Secondary Backing Weight

Total System Weight (w/o infill)

ENGLISH SYSTEM

VALUE

8,000

2.10

2.50

UNITS

Denier inches inches o z / s q. yd.

Micron oz/sq. yd.

o z / s q. yd.

o z / s q. yd.

METRIC SYSTEM

VALUE

8.000

1,288

2/305

UNITS

Denier mm mm g/m2

Micron g/m2 g/m2 g/m2

ASTM TEST

METHOD

:M

M

FINISH FABRIC

Tuff Bind

Yarn Elongation

Grab Tear Strength

Flammability

Relative Abrasiveness

Shock Attenuation (G-Max)

3.0 Ibs rubber and 1.0 Ibs

sand over stone base

Force Reduction

Surface Stability/Vertical Deformation

Ball Rebound

Carpet Percolation Rate

(Lab Tested)

System Drainage

ENGLISH SYSTEM

PASS

14.45

55-70

55-70

Ibs.

Ibs./ft.

G-MAX

30 - 50%

(Soccer Only) inches/hour* inches/per hour*

METRIC SYSTEM

3.6

PASS

14.45 kg kg

G-MAX

ASTM TEST

ASTM D 1335

ASTM D 2265

hSTM D 5034

ASTM D 2859

ASTM F 1015

ASTM F 1936

ASTM F 2157

ASTM F 2117

ASTM F 1551

ASTM F 1551

Note 1: Any change from the specified values is considered a special product that will require confirmation from manufacturing

Note 2: If the customer requires the specified value to be a minimum value, the product target and production cost will be shifted to the maximum of the range.

Note 3: All values are -/+ 5 percent.

3.7.1 Woven Geotextile Underlayment Minimum Requirements

PROPERTY

Tensile Strength

Elongation

Puncture

Trapezoidal Tear

UV Resistance (rain)

TEST METHOD

ASTM D 4632

ASTM D 4632

ASTM D 4833

ASTM D 4533

ASTH D 4355

UNITS

Ibs (N)

Ibs (N)

Ibs (N)

ENGLISH

50 at 500 Hrs.

PROPERTY

AOS

Permittivity

Water Flow Rate

CBR Puncture

TEST METHOD

AS"M D 4751

ASTM D 4451

ASTM C 4451

ASTM D 62-1

UNITS

US Sfcd. Sieve

1/sec gpm/ft2

Ibs (N)

ENGLISH

0.04

4.0

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