Post on 09-Jul-2018
0800 CIRTEX (247 839) I INFO@CIRTEX.CO.NZ I WWW.CIRTEX.CO.NZ
PAVEMENTDESIGNDesigning pavements with SecuGrid® and CombiGrid®
CIRTEX ADVANCED DESIGN SOLUTIONS
DESIGN
Designing pavements with SecuGrid® and CombiGrid®
0800 CIRTEX (247 839) I INFO@CIRTEX.CO.NZ I WWW.CIRTEX.CO.NZ
TOOLBOX CONTENTS
• Checklist to identify project parameters
• Product Information
• Using CapLab design program
• Specification sheets for tender and construction documentation
• Design output
• CAD details and methodology
Economical design of unbound granular pavements on soft subgrades, with thin flexible surfacing.
CIRTEX ADVANCED DESIGN SOLUTIONS
DESIGN
0800 CIRTEX (247 839) I INFO@CIRTEX.CO.NZ I WWW.CIRTEX.CO.NZ
Project Details Contact Details Date
Project Name Company
Project No. Engineer/Contractor
Location Ph.
Client Email
Request(Please explain your requirements)
Project details and site constraints
Expected subgrade CBR for design
Required design equivalent standard axles
Subgrade soil type
Water table level in relation to pavement surface
Sub base aggregate proposed
Width of pavement
Length of pavement
Site Constraints(Please list any specific site constraints such as minimum levels, location of services etc)
Other Info
TYPICAL CROSS SECTIONNotes:1. THE THICKNESS OF FORMATION AND SECUGRID GRADE REFER
TO SITE SPECIFIC DESIGN.2. BASECOURSE, SUBBASE AND TRENCH BACKFILL AGGREGATES
SHALL COMPLY WITH THE REQUIREMENTS OF TNZ M/4, TNZM/3 AND TNZ F/2.
3. ALL WORK SHALL BE CARRIED OUT IN ACCORDANCE WITH THE�SPECIFICATIONS, INSTALLATION METHODOLOGY AND�RECOMMENDATIONS OF CIRTEX INDUSTRIES LTD.4. ALL LEVELS AND DIMENSIONS SHALL BE VERIFIED ON SITE
PRIOR�TO THE COMMENCEMENT OF ANY WORKS. ANY DISCREPANCIES�SHALL IMMEDIATELY BE BROUGHT TO THE ATTENTION OF THE�ENGINEER.5. REFER SEQUENCE OF WORK DOCUMENT FOR DETAILED�INSTALLATION METHODOLOGY.6. ALL DIMENSIONS ARE IN METRES UNLESS NOTED OTHERWISE.7. CONCEPT DESIGN ONLY - NOT FOR CONSTRUCTION.
16 QUEEN STREET, KOPU, THAMES, 3578PHONE: 0800 247 839 ● FAX: 07 868 3435
WWW.CIRTEX.CO.NZ
DESIGN TOOLBOX - PAVEMENT
TYPICAL CROSS SECTION
NEW ZEALAND Dec. 2015
SCALE: /
REVISIONS:
CLIENTS:
ENGINEER:
PROJECT DESIGNLEVEL: PROJECT CONCEPT
DESIGNED:
PROJECT NO: /
DRAWING NO: DT-P-01
-
-
Surfacing
Basecourse
Sub-basecourse
Sub-grade
Footpath Kerb &Channel
Subsoil Drain withCIRTEX Filter Sleeve
Second layer SecuGridwhen sub-basecourse isover 500mm
SecuGrid+Duraforceor Combigrid with same gradeas per site specific design
Berm Carriageway Berm
DETAIL A
DETAIL A
0.3m
≥0.45m
0.225m
TNZ F/2
Subbase TNZ M/3 (e.g. GAP65)BasecourseTNZ M/4
Second layer SecuGridwhen sub-basecourse isover 500mm
SecuGrid+Duraforceor Combigrid with same gradeas per site specific design
Sub-grade
0.1m
Subsoil Drain withCIRTEX Filter Sleeve
Design Level
DATA INPUT SHEET FOR PAVEMENT DESIGN
Level 1 (Technical Support) Level 2 (Project Concepts) Level 3 (3rd Party Design Cost TBD)
Choose your preferred design level
0800 CIRTEX (247 839) I INFO@CIRTEX.CO.NZ I WWW.CIRTEX.CO.NZ
For product information visit WWW.CIRTEX.CO.NZ or phone 0800 CIRTEX (247 839).On the digital version you can simply click on the brochure below.
Get the solution.The Four Dimensions of
SecuGrid®
Benefits of SecuGrid® and CombiGrid®
• Proven and documented performance • Full scale field trials to demonstrate benefit • High stiffness in all directions• Fast and easy to install • Dependable quality German made • Nationwide stock holdings
PRODUCT INFORMATION
0800 CIRTEX (247 839) I INFO@CIRTEX.CO.NZ I WWW.CIRTEX.CO.NZ
CIRTEX ADVANCED PAVEMENT DESIGN PROGRAM
Intended use
CAPLab is an innovative and easy to use tool intended to assist a pavement designer with selecting the appropriate geogrid, geotextile, and pavement section thickness, based on the referenced engineering standards, testing, and research. Further information and guidance is available on the Cirtex website and forms a part of this introduction. http://www.cirtex.co.nz/2016/03/caplab-release/
Design Methodologies
The following is an overview of the two design methodologies used by CAPLab; for further information and copies of the research papers and source data relating to the design methodologies, please contact Cirtex on 0800 247 839.SIL & Fig 8.4 Method. This method uses a subgrade improvement layer generated from empirical data from the manufacturer Naue GmbH & Co (‘Naue’) based on the proven performance of the SecuGrid and CombiGrid range of geogrids to improve the modulus of the subgrade from the input figure to E = 80 MPA. From this improved figure the pavement depth is calculated using the formula from the Austroads Figure 8.4 chart (or Fig 8.5 from Austroads AP-T36/06 for ESA ≤ 105) to give the appropriate pavement depth. A conversion of E = 10*CBR is used. A customised version of CAPLab is available with other conversion formula if required.
Perkins 2014 Fig 7.4 Method. This method is based on the work of Dr Steve Perkins as outlined in his paper “Modification of Austroads Empirical Design Charts for Paved Roads Reinforced with a NAUE Geogrid.” It is based on extensive finite element modeling and is calibrated to the performance properties of SecuGrid® and CombiGrid®, and the modified Austroads charts as presented in the above-mentioned paper.
http://www.cirtex.co.nz/2016/03/caplab-release/
CIRTEX ADVANCED PAVEMENT DESIGN PROGRAM
CALCULATE
Welcome to Cirtex’s Advanced Pavement Design Program
CLICK HERE FOR MORE INFORMATION ON THIS PROGRAM
ENTER THE REQUIRED INPUTS THEN CLICK CALCULATE
Your Company Name Your Project
$3.502
1.00E+06≤ 65
8.00m600.00m
$60.00
$15.00
$10.00
User defined inputs
Your Project LocationClient Name
© Copyright Cirtex Industries Ltd 2016
Situation
Subgrade Strength%
DESA
D85 Sub-base Aggregate
Size of Pavement
Length [m]
Width [m]
Geogrid Cost per m2 (SecuGrid 30/30 Q1)
Sub-base Aggregate Cost, Supplied to Site per m3
Sub-base Aggregate Cost to Place and Compact per m3
Road Subgrade Excavation Cost per m3
Reset
Project Name Project Location
0800 CIRTEX (247 839) I INFO@CIRTEX.CO.NZ I WWW.CIRTEX.CO.NZ
Construction Notes
Sub base aggregate must be a well graded crushed rock, base course material must be M/4 AP40 base course or as directed by the project engineer. Compaction must be in lifts of no more than 200mm to 98% MDD. Site engineer to confirm characteristic subgrade strength before starting construction.
Refer to the SecuGrid® installation instructions for details on installation, joining, and overlapping of the geogrid.
http://www.cirtex.co.nz/product/secugrid-multi-directional-geogrid/
SecuGrid® and DuraForce® may be substituted with the appropriate grade of CombiGrid if required. A geogrid with lower stiffness parameters must not be used. Best practice for pavement construction as regards drainage and detailing must be followed as set out in the applicable local regulations and project documents.
Important note: refer to the information section of the CAPLab program for details of the design methodology and derivation of the figures used. This suggested pavement layout is not to be used for construction until approved by a suitably qualified engineer.
- SUGGESTED PAVEMENT LAYOUTVersion No. 00007
CLIENT NAME Your Client Name
PROJECT NAME Your Project Name
PROJECT LOCATION Your Project Location
SecuGrid® Reinforced SIL - Fig 8.4 MethodFor thin surface flexible pavements
TOTAL PAVEMENT DEPTH
BASE COURSE THICKNESS
SUB-BASE THICKNESS
GEOGRID TYPE REQUIRED
SECOND LAYER REQUIRED
GEOTEXTILE ON SUBGRADE
D85 Sub-base Aggregate ≤ 65 Subgrade Strength% 2 DESA 1.00E+07
MATERIALS SecuGrid 30/30 Q1 5300m2 DuraForce AS410 5300 m2
GEOTEXTILES
KEY:
Surfacing
Base course Thickness
Sub-base Thickness
LAYERS
580 mm
410 mm
NO
170 mm
SecuGrid® 30/30 Q1
DuraForce®AS410 DuraForce® AS410
410 mm170 mm
SecuGrid® 30/30 Q1
Pavement must be sealed with an appropriate chip seal or asphaltic concrete layer.
0800 CIRTEX (247 839) I INFO@CIRTEX.CO.NZ I WWW.CIRTEX.CO.NZ
GEOTEXTILE must be DuraForce® AS Series Geotextile of the grade specified on the design print out.
GEOGRID must be CombiGrid® or SecuGrid® of the grade specified on the design print out. Geogrid must comply with the following minimum properties
SPECIFICATIONS
SecuGrid® or CombiGrid® 40/40 Q1
The geogrid required for the pavement is SecuGrid 40/40 Q1 having the following material and performance properties which are integral to this application.
Raw material Polypropylene
Ultimate strength MD & CD ≥ 40 kN/m
Strength at 2% strain MD & CD ≥ 16 kN/m
Elongation at ultimate strength ≤ 8%
Radial (triaxial) stiffness @ 0.5% strain ≥ 802 kN/m
Notes to geogrid specification
Geogrid overlaps must be as specified on the construction drawings and no less than 300mm.
Aperture size must be between 12.5mm and 75mm, and the aperture size must be ≥ D50 of the aggregate above the geogrid and ≤ 2 x D85 of the aggregate above the geogrid.
SecuGrid® or CombiGrid® 30/30 Q1
The geogrid required for the pavement is SecuGrid 30/30 Q1 having the following material and performance properties which are integral to this application.
Raw material Polypropylene
Ultimate strength MD & CD ≥ 30kN/m
Strength at 2% strain MD & CD ≥ 12 kN/m
Elongation at ultimate strength ≤ 8%
Radial (triaxial) stiffness @ 0.5% strain ≥ 592 kN/m
Notes to geogrid specification
Geogrid overlaps must be as specified on the construction drawings and no less than 300mm.
Aperture size must be between 12.5mm and 75mm, and the aperture size must be ≥ D50 of the aggregate above the geogrid and ≤ 2 x D85 of the aggregate above the geogrid.
SecuGrid® or CombiGrid® 20/20 Q1
The geogrid required for the pavement is SecuGrid 20/20 Q1 having the following material and performance properties which are integral to this application.
Raw material Polypropylene
Ultimate strength MD & CD ≥ 20 kN/m
Strength at 2% strain MD & CD ≥ 8 kN/m
Elongation at ultimate strength ≤ 8%
Radial (triaxial) stiffness @ 0.5% strain ≥ 494 kN/m
Notes to geogrid specification
Geogrid overlaps must be as specified on the construction drawings and no less than 300mm.
Aperture size must be between 12.5mm and 75mm, and the aperture size must be ≥ D50 of the aggregate above the geogrid and ≤ 2 x D85 of the aggregate above the geogrid.
0800 CIRTEX (247 839) I INFO@CIRTEX.CO.NZ I WWW.CIRTEX.CO.NZ
TYPICAL CROSS SECTION
Notes:1. THE THICKNESS OF FORMATION AND SECUGRID GRADE REFER
TO SITE SPECIFIC DESIGN.2. BASECOURSE, SUBBASE AND TRENCH BACKFILL AGGREGATES
SHALL COMPLY WITH THE REQUIREMENTS OF TNZ M/4, TNZM/3 AND TNZ F/2.
3. ALL WORK SHALL BE CARRIED OUT IN ACCORDANCE WITH THESPECIFICATIONS, INSTALLATION METHODOLOGY ANDRECOMMENDATIONS OF CIRTEX INDUSTRIES LTD.
4. ALL LEVELS AND DIMENSIONS SHALL BE VERIFIED ON SITE PRIORTO THE COMMENCEMENT OF ANY WORKS. ANY DISCREPANCIESSHALL IMMEDIATELY BE BROUGHT TO THE ATTENTION OF THEENGINEER.
5. REFER SEQUENCE OF WORK DOCUMENT FOR DETAILEDINSTALLATION METHODOLOGY.
6. ALL DIMENSIONS ARE IN METRES UNLESS NOTED OTHERWISE.7. CONCEPT DESIGN ONLY - NOT FOR CONSTRUCTION.
16 QUEEN STREET, KOPU, THAMES, 3578PHONE: 0800 247 839 ● FAX: 07 868 3435
WWW.CIRTEX.CO.NZ
DESIGN TOOLBOX - PAVEMENT
TYPICAL CROSS SECTION
NEW ZEALAND MAR. 2017
SCALE: /
REVISIONS: /
CLIENTS:
ENGINEER:
PROJECT DESIGNLEVEL: PROJECT CONCEPT
DESIGNED: /
PROJECT NO: /
DRAWING NO: DT-P-01
-
-
Surfacing
Basecourse
Sub-basecourse
Sub-grade
Footpath Kerb &Channel
Subsoil Drain withCIRTEX Filter Sleeve
Second layer SecuGridwhen sub-basecourse isover 500mm
SecuGrid+Duraforceor Combigrid with same gradeas per site specific design
Berm Carriageway Berm
DETAIL A
DETAIL A
0.3m
≥0.45m
0.225m
TNZ F/2
Subbase TNZ M/3 (e.g. GAP65)BasecourseTNZ M/4
Second layer SecuGridwhen sub-basecourse isover 500mm
SecuGrid+Duraforceor Combigrid with same gradeas per site specific design
Sub-grade
0.1m
Subsoil Drain withCIRTEX Filter Sleeve
Cirtex has typical Pavement Sections available in either PDF or DWG files which can be adjusted to your specific project.
Pavement - Typical Cross SectionCAD DETAILS
TYPICAL CROSS SECTIONNotes:1. THE THICKNESS OF FORMATION AND SECUGRID GRADE REFER
TO SITE SPECIFIC DESIGN.2. BASECOURSE, SUBBASE AND TRENCH BACKFILL AGGREGATES
SHALL COMPLY WITH THE REQUIREMENTS OF TNZ M/4, TNZM/3 AND TNZ F/2.
3. ALL WORK SHALL BE CARRIED OUT IN ACCORDANCE WITH THE�SPECIFICATIONS, INSTALLATION METHODOLOGY AND�RECOMMENDATIONS OF CIRTEX INDUSTRIES LTD.4. ALL LEVELS AND DIMENSIONS SHALL BE VERIFIED ON SITE
PRIOR�TO THE COMMENCEMENT OF ANY WORKS. ANY DISCREPANCIES�SHALL IMMEDIATELY BE BROUGHT TO THE ATTENTION OF THE�ENGINEER.5. REFER SEQUENCE OF WORK DOCUMENT FOR DETAILED�INSTALLATION METHODOLOGY.6. ALL DIMENSIONS ARE IN METRES UNLESS NOTED OTHERWISE.7. CONCEPT DESIGN ONLY - NOT FOR CONSTRUCTION.
16 QUEEN STREET, KOPU, THAMES, 3578PHONE: 0800 247 839 ● FAX: 07 868 3435
WWW.CIRTEX.CO.NZ
DESIGN TOOLBOX - PAVEMENT
TYPICAL CROSS SECTION
NEW ZEALAND Dec. 2015
SCALE: /
REVISIONS:
CLIENTS:
ENGINEER:
PROJECT DESIGNLEVEL: PROJECT CONCEPT
DESIGNED:
PROJECT NO: /
DRAWING NO: DT-P-01
-
-
Surfacing
Basecourse
Sub-basecourse
Sub-grade
Footpath Kerb &Channel
Subsoil Drain withCIRTEX Filter Sleeve
Second layer SecuGridwhen sub-basecourse isover 500mm
SecuGrid+Duraforceor Combigrid with same gradeas per site specific design
Berm Carriageway Berm
DETAIL A
DETAIL A
0.3m
≥0.45m
0.225m
TNZ F/2
Subbase TNZ M/3 (e.g. GAP65)BasecourseTNZ M/4
Second layer SecuGridwhen sub-basecourse isover 500mm
SecuGrid+Duraforceor Combigrid with same gradeas per site specific design
Sub-grade
0.1m
Subsoil Drain withCIRTEX Filter Sleeve
0800 CIRTEX (247 839) I INFO@CIRTEX.CO.NZ I WWW.CIRTEX.CO.NZ
Phone 0800 CIRTEX (247 839) for a copy of the SecuGrid® and CombiGrid® installation guide or visit the Cirtex website at:
http://www.cirtex.co.nz/wp-content/uploads/2016/02/SecugridInstallGuideBaseReinforcement.pdf
INSTALLATION GUIDE
0800 CIRTEX (247 839) I INFO@CIRTEX.CO.NZ I WWW.CIRTEX.CO.NZ
FORM NUMBER F 001 007
ISSUE NUMBER 02
DATE 08 / 01 / 2017
PROJECT DESIGN OPTIONS
Technical Support
Technical support is our standard, no-cost customer support which is available by telephone, email or during sales representative’s routine visits during normal business hours to provide support on our range of products and their suitability for a given project. This support can include data sheets, case studies and other relevant technical backup and a quotation if required.
This support is based on our understanding of your requirements and assumed or client supplied site information. Any specifications, sketches, plans or drawings provided by us do not necessarily relate specifically to a particular project or site, and should not be relied on as such.
Should you require further design assistance we can either offer our in house concept design service or alternatively, full 3rd Party Design which is provided by a 3rd party registered engineer.
Project Concepts
This level of support is normally carried out by our in house technical team and is very useful for establishing concepts used for proposals and costing purposes. Project Concepts can often form part of the full 3rd Party Design should you make a decision to obtain a 3rd Party Design at a later date. Outputs for this service will vary depending on the application and situation, however, will normally include reinforcement layout, type and strength required for reinforced slope and wall applications, anchor selection guidelines for Earth Anchoring applications, and CAD drawings and installation guidelines. Details of what will be provided can be discussed with one of our technical team. For earth anchoring applications a site pullout test is often included in the concept design phase.
This level of design carries no contractual warranty and a producer statement is not provided. This service is based on assumed or client supplied information. You should ensure that any outputs from a Project Concept service are checked by a suitably qualified and certified engineer instructed by you. Our technical team will provide the relevant calculations and drawings to your engineer and will cooperate with the engineer.
Any costs associated with this service will be discussed at the time of acceptance.
3rd Party Design
If 3rd Party Design is required, it is carried out by a suitably qualified and registered 3rd party engineer. Prior to providing a quotation for this type of design, in depth discussion will be carried out to establish the exact requirements of the client and scope of the design. Each design is costed accordingly and based on the work involved to fulfill the requirements of the client. These costs will be defined in the engagement documentation. The Project Concept Design can often be utilised to reduce the overall cost to the client in this stage.
CIRTEX INDUSTRIES LTD
HEAD OFFICE 16 QUEEN STREET, KOPU, THAMES 3578, NEW ZEALAND
AUCKLAND SALES & DISTRIBUTION2 WILCO PLACE, WIRI, MANUKAU, AUCKLAND
CHRISTCHURCH SALES & DISTRIBUTIONUNIT 2, 652 HALSWELL JUNCTION ROAD, HORNBY, CHRISTCHURCH
POSTAL ADDRESS PO BOX 470, THAMES 3540, NEW ZEALAND
0800 CIRTEX (247 839) I INFO@CIRTEX.CO.NZ I WWW.CIRTEX.CO.NZ
CIRTEX ADVANCED DESIGN SOLUTIONS
DESIGN