BODPAVE®85 PAVING GRIDS

SPECIFICATION, DESIGN& INSTALLATIONGUIDANCE

Optional verticaledging board or kerb

BGT100 Geotextile fabric (see Notes 4, 6 & 7)

BodPave 85 paver cells filled to within 5-7mm ®

of the surface with 60:40 rootzone (see Note 8)then seeded or turfed and fertilised Bedding layer: 50-70mm thick

consolidated 60:40rootzone (see Note 8).

Existing SoilExisting Soilmin = Tx

Tx

Tensar TriAx™ TX160 geogrid& optional BGT100 Geotextile fabric

(see Tables 1, 2 & Notes 1-4 & 7)

Drainage options (see Notes 2, 4, 6 & 7)

Sub-base layer. Thickness(Tx) & Type as determined by

Table 1 & Notes 1-5

Subgrade Soil (subsoil)(Refer to Table 1, Chart 1 & Note 5)

50mm

50-70mm

100-380mm

1. Install edge retention as specified: Either tanalised timber boards, concrete, steel or plastic kerbs as appropriate.

2. Ensure that the sand:soil rootzone bedding layer is the correct & uniform thickness, is level & well consolidated.

3. Place the paver units: With the 2 sets of edge loop connectors facing in directions of laying, place BodPave®85 firmly onto the surfaceso that its ground spikes are pressed fully into the bedding and the base of the paver cells sit flat on the bedding layer surface. Connectadjacent pavers together by slotting the edge cell connectors down into the edge loops (LOOPS ALWAYS LEAD) & progress over the area in rows. Pavers are locked in place by snap-fit clips. If paver separation is required, clips can be dislocated using careful, firm hand or screwdriverpressure or by gently twisting the paver joints. Use protective gloves to avoid abrasions.

4. Pavers can be offset by 1 cell increments or cut to fit around obstructions & curves using a hand or power saw. The use of cut-pieces which do not have integral snap-fit connectors should be avoided wherever possible.

5. Fill pavers with specified propriety rootzone to finished levels: 5-7mm below top of the cells after settlement. A light whacker plate may be used to consolidate the pavers and settle rootzone fill. Do not overfill or over consolidate.

6. Carry out a normal seeding, fertilising & watering programme. A light top dressing may be applied to just cover the seed and to provideadequate germination conditions. Do not overfill the paver cells. Thin-cut or Washed Turf may be lightly rolled into the surface as analternative if required.

7. The surface may be trafficked immediately for critical access purposes, but it is preferable to allow grass to fully establish prior to use.

Note 1: If Tensar TriAx™ TX160 geogrid is omitted, the total Granular Sub-Base (GSB) layer thickness (Tx) must be increased by minimum 50%.

Note 2: A‘DoT Type 1’ sub-base may be used provided that an adequate drainage system is installed. Alternatively, a permeable/open-graded (reduced fines) sub-base layer (i.e Type 3) may be specified, e.g. as part of a Sustainable Urban Drainage System (SUDS).

Note 3: If construction traffic axle loads will be greater than 60kN (approx’ 6 Tonnes), minimum sub-base thickness over Tensar TriAx™ TX160 geogrid shall be 150mm. Maximum sub-base particle size should match minimum sub-base thickness but not exceed 75mm diameter. For sub-base thicknesses of around 100mm, a minimum 37.5mm particle size should be adopted to allow effective installation of Tensar TriAx™ TX160 geogrid.

Note 4: Where drains are omitted and a 'reduced fines' sub-base is specified for SUDS this must be covered with either a geotextile fabric(i.e. BGT100) and/or a clean, suitably graded gravel blinding to avoid the bedding layer leaching into the sub-base.

Note 5: Specific advice on CBR% strengths, ground conditions and construction over weak ground with a CBR less than 1% is available from Boddingtons Limited. CBR% = California Bearing Ratio, a measurement of subgrade soil strength.

Note 6: Typical standard drainage detail: 100mm diameter perforated pipe drains laid at minimum gradient 1:100, bedded on gravel in trench backfilled with ‘DoT Type A’ drainage aggregate, trench covered &/or wrapped with a geotextile fabric (i.e BGT100), pipes leading to a suitable outfall or soakaway. Drains installed down centre or one edge of areas up to 5m wide. Wider areas may require additionallateral drains at 5m - 10m centres. Drainage design to be determined by the specifier based on specific site conditions.

Note 7: Drainage for a Sustainable Urban Drainage System (SUDS) application will vary according to the site but generally omits the requirement for extensive pipe & trench drainage systems within the sub-base layer and may require an additional layer of BGT100 geotextile fabricat base of construction.

Note 8: Rootzone bedding and paver fill must be a free-draining, structurally sound propriety blend of sand:soil or sand:compost such as used in sports/golf construction & normally identified as a 60:40 or 70:30 ratio blend. The use of site-won materials or in-situ self-blending is NOT recommended without taking further advice.

Note 9: Maximum advised gradient for traffic applications: 12% (1:8) 7º. Bodpave®85 has specific pegging points if required for steep slope applications. Pegging is not necessary for standard access route applications.

Note 10: BodPave®85 complies with BS8300:2009 - “Design of buildings and their approaches to meet the needs of disabled people” - Code of Practice. (ISBN 978 0 580 57419) & Building Regulations Document ‘M’ section 6.

Specific advice on the use of BodPave®85 on steep slopes, drainage suitability and Sustainable Urban Drainage Systems (SUDS)applications, can be obtained from Fiberweb Geosynthethics Ltd.

BODPAVE®85 INSTALLATION METHOD

For Grassed SurfacesTypical Construction Profile

DESIGN NOTES

Data Sheet No : SDI / B85PGS09 Issue 2

FIBERWEB GEOSYNTHETICS LTDBlackwater Trading Estate • The Causeway • Maldon • Essex CM9 4GG • UKTel: +44 (0) 1621 874200 Fax: +44 (0) 1621 874299e.mail: info@terram.com • www.terram.com

Tensar & TriAx™ are registered trademarks of Tensar International

BODPAVE®85 PAVING GRIDS

Chart 1: Field guidance for estimating sub-grade strengths

ConsistencyIndicator Strength

Tactile(feel)

Visual(observation)

Mechanical(test)

CBR

SPT % kN/sqm

CU

Very Soft

Soft

Medium

Firm

Stiff

Hand sample squeezesthrough fingers

Man standing willsink >75mm

<2 <1 <25

2-4 Around 1 Around 25

4-8 1-2 25-40

8-15 2-4 40-75

15-30 4-6 75-150

Man walkingsinks 50-70mm

Man walkingsinks 25mm

Utility truck ruts10-25mm

Loaded constructionvehicle ruts by 25mm

Easily moulded byfinger pressure

Moulded by moderatefinger pressure

Moulded by strongfinger pressure

Cannot be moulded butcan be indented by thumb

This field guide is provided as an aid to assessing the mechanical stabilisation requirements in commonly encountered site conditions. FiberwebGeosynthethics Ltd accepts no responsibility for any loss or damage resulting from the use of this guide.

Table 1: Typical Sub-base Thickness (Tx) Requirements - refer to construction profile overleaf

APPLICATION/LOADCBR (%) STRENGTH OF

SUBGRADE SOIL(see Chart 1)

DESCRIPTION DATA

(TX) DoT SUB-BASE THICKNESS (mm)

(see Notes 1 - 5)

TENSAR TriAx™

GEOGRID (see Notes 1 - 3)

Fire trucks, Coachesand occasional HGVaccess

≥ 6= 4 < 6= 2 < 4= 1 < 2

100120190380

TX160TX160TX160TX160

Light vehicle accessand overspill carparking

Bedding Layer

Paver fill (seed bed)

Grass seed or turf

Fertiliser

Sub-base type

Sub-base reinforcement

60:40 rootzone (see Note 8) : 50-70mm thick

60:40 rootzone (see Note 8): 43-45mm thick

35g/m2 amenity blend low maintenance seed or turf as required

Pre-seed fertiliser followed up with appropriate seasonal fertiliser

DoT Type 1 or a modified permeable Type 3 sub-base (Table 1 & Notes 1-5)

Tensar TriAx™ TX160 geogrid (Table 1 & Notes 1-4 & 7)-Specification on request.

≥ 6= 4 < 6= 2 < 4= 1 < 2

ProductMaterial Colour optionsPaver dimensions Installed Paver sizeNominal internal cell sizeStructure TypeCell wall thicknessWeight (Nominal)Load bearing capacity (filled)Crush Resistance (unfilled)Basal support & Anti-ShearOpen cell % Connection typeInterlock MechanismChemical resistanceUV resistanceToxicity

BodPave®85100% recycled polyethyleneBlack, Green & Natural500mm x 500mm x 50mm + 35mm ground spike500mm x 500mm (4 grids per m2)Castellated 67mm Plaque & 46mm Round ShapedRigid-walled, flexible semi-closed cell combination2.5mm – 4.4mm1.56 kg/paver - (6.24kg/m2)< 400 tonnes/m2 *< 250 tonnes/m2 *Integral 35mm long Cross & T section ground spikes (18 per paver)Top 92% / Base 75%Overlapping Edge Loop & Cell connectionIntegral self locking Snap-Fit ClipsExcellentHighNon Toxic

100100135260

TX160TX160TX160TX160

Table 2: Paving Grid Specification

Data Sheet No : SDI / B85PGS09 Issue 2

*Research carried out by Sheffield University Department of Mechanical Engineering. (Rennison/Allen March 2009)

The information contained herein is, to the best of our knowledge, accurate in all material respects. However, since the circumstances and conditions in whichsuch information and the products mentioned herein can be used may vary and are beyond our control, no representation or warranty,express or implied, of any nature whatsoever is or will be made and no responsibility or liability is or will be accepted by us, any of our affiliates or our or theirrespective directors, officers, employees or agents in relation to the accuracy or completeness or use of the information contained herein or any such productsand any such liability is expressly disclaimed.

FIBERWEB GEOSYNTHETICS LTDBlackwater Trading Estate • The Causeway • Maldon • Essex CM9 4GG • UKTel: +44 (0) 1621 874200 Fax: +44 (0) 1621 874299e.mail: info@terram.com • www.terram.com

BODPAVE 85 is an interlocking cellular porouspaving system for ground reinforcement which can be installed with either a grass or gravel filled surface. The design of BODPAVE 85 pavers allows them to positively interlock with each other and resist shear. Once filled, they provide a high level of load-bearing performance. They are laid on a free-draining base and can be filled with either gravel for immediate frequent/intensive use, or with a seeded sand/soil toestablish a grassed surface for occasional consecutive use. Both options mean that the resulting pavement is porous and in sympathy with the environment.

Note: a grassed surface may not be suitable for every application.

The unique BODPAVE 85 design resists lateralmovement whilst accommodating expansion andcontraction, promotes surface traction and stabilityand encourages grass growth by protecting the roots.

Permanent grassed or gravel car and coach parking, fire access routes, helipads, taxiways, cycle paths, driveways, access roads and other trafficked areas where a structurally-sound, well drained base is present or will be installed.

Car / coach parks Emergency / HGV service access routes Aircraft taxiways & helipads Walkways and disabled access Golf buggy paths Driveways & residential parking SUDS source control

APPLICATIONS (Grass or Gravel)

GRIDSTRUCTURE

BODPAVE 85 issuitable for grassedsurfaces, gravelretention and SUDS sourcecontrol applications.

BODPAVE 85 installation for a gravel car park

BODPAVE™85Porous Pavers

FREQUENCYOF USE

SUGGESTEDAPPLICATIONS

Occasional consecutive vehicular use

Frequent/Intensive vehicular use

GRAVEL

GRASS

Subgrade soil

Tensar TriAx™

TX160 geogridoption

Terram Geotextile filter fabric(e.g. T1000)

Sand : SoilRootzone orGravel Bedding

DoT reduced fines‘Type 3’ Sub-base

Terram Geotextilefilter fabric (e.g. T1000)option

with Grass or Gravel

TYPICAL PROFILE

TYPICAL PROFILE

Not all layers will apply to every application and drainage may berequired. Please refer to Fiberweb’s design guidance documents.

BODPAVE 85

Open cell structure promotesoptimum grass growth

Integral interlocking ‘snap-fit’connections on 500mm x 500mm grids

Cells contain water retentioncups to optimise root growth

Integral ground spikes resist deformation & lateral movement

Castellations aid lateral grass growth and increase traction

Pavers can be offset by one cellincrements for curvesobstructions

Tensar & TriAx™ are registered trademarks of Tensar International

BODPAVE 85 natural (white) pavers installed for a domesticdriveway application

Filled with angular gravel creating an attractive reinforcedpermeable surface that retains the gravel

SYSTEM FEATURES:

Existing SoilExisting Soil

Drainage options

Type 3 (open graded) or 4/40 sub-base layer for SUDS design

Subgrade Soil (subsoil)

50mm

50mm

100-380mm

Gravel option: BODPAVE 85 pavers filled with angular

aggregate in the range 4mm-15mm (BS EN 13242)

Optional vertical edging board or kerb

Grassed option: BODPAVE 85 pavers filled to within 5-7mm of the surface with 60:40 rootzone then seeded and fertilised

Gravel option: 35-50mm thick bedding layer of angular

aggregate within the range of 4mm-15mm (BS EN 13242)

50mm thick consolidated bedding layer 60:40 sand:soil rootzone

Grassed option profile example

Gravel option profile example

Optional Tensar TriAx™ TX160 geogrid & Terram geotextile

filter/separator(e.g. T1000)

Terram geotextile filter/separator

(e.g. T1000)

Natural grass or gravel surface options High load-bearing capacity up to 400t/m2 when gravel filled 92% open surface structure - SUDS source-control compliant Can accommodate inclines up to 1:8 / 12% / 7° and localised gradient changes No pinning required except on excessive gradients Accelerated installation with 1m x 1m panels (four pre-connected pavers supplied as standard) Environmentally friendly and aesthetically pleasing Suitability for hot and cold climates due to expansion/contraction capability Less wastage as pavers can be incrementally off-set connected to accommodate curves/ obstructions Non-toxic and chemically inert to the chemicals naturally found in soils Manufactured in the UK using recycled HDPE (black and green) with additional UV stabilisation. Natural colour is manufactured from virgin HDPE

LINE MARKER DETAILS

COLOUR SIZE (mm) MATERIAL

White

Yellow

215 x 70

215 x 70

HDPE

HDPE

Single unit to form lines

Cut to form other shapes

Visit our website for further information on:Data Sheets, Installation & Design Guidancesand Case Studies or call +44 (0) 1621 874200 www.terram.com

TENSAR TRIAX TX160 DETAILS

PART NO.MATERIALROLL SIZE

4mx75m 69kg 058556PP

NOMINAL UNIT

WEIGHT

A Tensar TriAxTM TX160 grid should be includedbeneath the sub-base layer to reduce the totaldesign thickness.The panels (a pre-assembly of four pavers) connect together simply, ready to be filled with a sand:soil rootzone and seeded for a grass surface, or filled with an angular gravel as determined by the application. The construction profile for each application willbe as a result of site-specific conditions and the service-life-loading criteria. Design and technical support documents are available to downloadfreely from www.terram.com.All BoDPAvE 85 installations must be provided with sufficient and adequate drainage in order to function as intended. Failure to do this may compromise performance.

BODPAVE 85 PRODUCT DETAILSNOMINAL CELL

SIZE (mm)*PAVER SIZE

(mm)QUANTITY

(per m2)WEIGHT

(Nominal)LOAD BEARING

CAPACITY COLOURMATERIAL PART NO.

4 Grids 6.24kg/m2 400tonnes/m2

400tonnes/m2

400tonnes/m2

BlackRecycled

Polyethylene

RecycledPolyethylene

virginPolyethylene

057580

4 Grids 6.24kg/m2 Green 059447

4 Grids 6.24kg/m2 Natural 059430

500 x 500 x 50 67 Plaque& 46 round

500 x 500 x 50 67 Plaque& 46 round

500 x 500 x 50 67 Plaque& 46 round

*Each paver includes a 35mm integral ground spikeTensar & TriAx™ are registered trademarks of Tensar International

Marking bays when using BODPAVE 85 paversPlastic markers are available for marking bays within areas of BoDPAvE 85 paving. The markers are designed to clip positively into the plaque-shaped cells and can be fitted in various orientations to create solid/dotted lines and T or L shapes, etc, for parking bay heads, aisles and junctions.They can be permanently fixed in place by applying a suitable high-strength adhesive or an outdoor-frame sealant to the underside of the markers. If required, the markers can be reduced in size to create single-cell or double-cell-sized units by cutting accurately along the lines between each textured square/pyramidal section. It is recommended that these cut units are bonded in place to resist displacement.

Free technical seminars can be arranged to suit your specific area of interest in our product range. Please contact us for further details.