2017-03-22 Approved Information session - Update to TMR ...€¦ · 3.5m drivers licensed 256,151 recreational vessel registrations 997,289 boat licenses 180 m in SEQ 12.1 outside

10/04/2017

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Information Session: Update to TMR sprayed sealing documents Jason Jones — Principal Engineer (Asphalt and Surfacings)| Department of Transport and Main Roads

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Our values, our diversity

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Queensland Government’s

objectives for the community

Advance Queensland

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Our strategic plan

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About us…

3,029bridges

20ports

3,260taxis licensed

5mvehicles registered

3.5mdrivers licensed

256,151recreational vessel

registrations

997,289boat licenses

180min SEQ

12.1moutside SEQ

trips taken annually on bus, rail, ferry and light rail

33,343kmstate-controlled roads

As at 30 June 2016 we manage: As at 30 June 2016: As at 30 June 2016 there were:

3.63mcustomers served

face-to-face at

59Customer Service Centres

2.5mgo cards

in use

Over 490,000passengers travel on thesouth-east Queensland

network on averageeach day

Our customers conducted

6.68monline services

Creating a single integrated transport network accessible to everyone

Update to TMR sprayed sealing documents | 10 April 2017

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Agenda

1. Purpose of Information Session

2. MRS/MRTS11 Update Overview

3. Details of MRS/MRTS11 Update

4. MRTS18 Update

5. Sprayed Seal Design Supplement

6. Stakeholder feedback process.


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Purpose of Information Session

• MRS11/MRTS11 – Sprayed Bituminous Treatments Overview of the proposed

changes Reasons for change

• MRTS18 – Polymer Modified Binders Historical background Response to feedback

• TMR Sprayed Seal Design Supplement Historical background Development of Chapter 12.


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MRS/MRTS11 Update Overview

Why update? Facilitate increased use of crumb rubber modified (CRM)

binders

Enable TMR Sprayed Seal Design Supplement

Alignment with Austroads

Feedback.


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MRTS11 Update Overview

• Current state of play on TMR projects: A high percentage of seals use a polymer modified binder

Typically S0.3B, S0.7S and S4.5S binders classes are specified

TMR rarely specifies CRM binders

S1.8R, S15RF or S18RF

The number of alternative tenders using CRM binders has increased significantly over the last 2 years.


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Potential benefits: Sustainability

Performance

Cost

Capital

Whole-of-life.


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Considerations: Binder conformance

Industry appetite and capacity

Logistical challenges

For TMR

Cost competitiveness

Performance

Education

Who is doing the seal design?

TMR

Contractor.


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Considerations: How it could be implemented:

Guidance for alternative tenders

Mandate

Permissive use

• Approach to be adopted: Contractor’s seal design:

Permissive use

Principal’s seal design:

Principal nominates binder class

Guidance for alternative tenders.


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• Assumptions: Seal design in accordance with TMR’s Sprayed Seal Design

Supplement using equivalent binders will provide equivalent outcomes

• Polymer factors

• What impact does polymer type and/or seal thickness have on seal life?


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Other changes: Terminology changes:

Binder classes

Treatment types

Binder handling requirements moved from MRTS11 to MRTS18

Pavement surface temperature requirements

Additional guidance for selection of “Period between bituminous treatments”

Removal of cutting tables:

Guidance only – Austroads/AAPA work tips

Selection of cutter rates is the responsibility of the seal designer’s delegate.


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Update of MRTS11

Alignment of treatment types with Austroads


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MRTS11 Update

New terms:

• Initial treatment: Prime

Initial seal – replaces ‘primerseal’

• Secondary treatment: An application of a sprayed bituminous treatment over an initial

treatment

• Retreatment: An application of a sprayed bituminous treatment on an existing

bituminous surfacing


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MRTS11 Update

Treatment types to align with Austroads


Treatment Type Treatment Label

Initial Treatments

Prime P

Initial Single/Single Seal I-S/S

Initial Double/Double Seal I-D/D

Secondary Treatments and Retreatments

Single/Single Seal S/S

Double/Double Seal D/D

High Stress Single/Single Seal for medium traffic loadings HSS1-M

High Stress Single/Single Seal for heavy traffic loadings HSS1-H

High Stress Double/Double Seal for medium traffic loadings HSS2-M

High Stress Double/Double Seal for heavy traffic loadings HSS2-H

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MRTS11 Update

Treatment types to align with Austroads – continued


Treatment Type Treatment Label


Extreme Stress Seal XSS

Strain Alleviating Membrane for slow moving cracks SAM-S

Strain Alleviating Membrane for rapid moving cracks SAM-R

Strain Alleviating Membrane Interlayer SAMI

Waterproofing Seal under Asphalt1 WP-A

Geotextile Reinforced Seal with a Single/Single Seal GRS-S/S

Geotextile Reinforced Seal with a Double/Double Seal GRS-D/D

Surface Enrichment SE

Scatter Coat SC

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MRTS11 Update

Acceptable binder classes

TreatmentType

TechnicalSpecification

Acceptable Binder Class

Initial Treatments

Prime MRTS20 AMC00, AMC0 or AMC1

I-S/S or I-D/DMRTS20, MRTS17

AMC4, AMC5, AMC6, AMC7 or C170


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MRTS11 Update

Acceptable binder classes – continued

TreatmentType




S/S or D/D MRTS17 C170

HSS1-M MRTS18 S0.25S, S0.7S, S0.3B, S1.8R or S15RF

HSS1-H MRTS18 S0.7S, S2S, S1.8R or S15RF

HSS2-M MRTS18 S0.25S, S0.3B, S1.8R or S15RF

HSS2-H MRTS18 S0.7S, S2S, S1.8R or S15RF

XSS MRTS18 S2S, S1.8R, S15RF


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MRTS11 Update

Acceptable binder classes – continued

TreatmentType




SAM-S MRTS18 S0.25S, S0.3B, S1.8R or S15RF

SAM-R MRTS18 S0.7S, S2S, S1.8R or S15RF

SAMI MRTS18 S4.5S or S18RF

WP-A MRTS18 S2S, S4.5S, S1.8R or S15RF

GRS-S/S or GRS-D/D

MRTS17 C170

SE MRTS20 AMC4

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MRTS11 Update

Method of specifying treatment.

• Principal’s seal design: Binder class

Cover aggregate nominal size(s)

Estimated application rates

• Contractor’s seal design: Treatment type

Cover aggregate nominal size(s)


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Annexure MRTS11.1 Update


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MRTS11 Update

New milestone:

• Notification of binder class: Contractor seal design and

Principal supplied binder.


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MRTS11 Update

Binder handling requirements moved from MRTS11 to MRTS17 and MRTS18.


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MRTS11 Update

Ball penetration testing is required for initial seals on: Granular pavement (existing requirement)

Stabilised pavement (new)

Lightly bound pavement (new)


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MRTS11 Update

Default pavement surface temperatures (Cl.11.2):Temperature Previous MRTS11 Updated MRTS11

10°C • Primes • Primes

15°C • Primer seals • Cutback bitumen (other than primes), bitumen, multigrade bitumen and S35E;

• WP-A and SAMI seals placed over an existing seal or asphalt and overlaid with asphalt prior to trafficking

20°C • Bitumen and PMBs

• S0.25S, S0.7S, S1.8R or, S15RF (excluding WP-A or SAMI seals placed in applications stated above);

• Geotextile reinforced seals

25°C • Nil • S2S, S4.5S or S18RF (excluding WP-A or SAMI seals placed in applications stated above)

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MRTS11 Update

Cutting back binder (Cl. 12.7) Cutting tables removed

Feedback has indicated they no longer reflect current practice

Amount of cutter determined by the Seal Designer’s Delegate

Guidance:

Austroads/AAPA Pavement Work Tips.


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MRTS11 Update

Cover aggregate time limit (Cl.11.3):Previous MRTS11 Updated MRTS11

Primerseal • 15 minsCutback bitumen, bitumen and multigrade bitumen

• 10 minsC170, M500, C320

• 10 mins

PMB including crumbed rubber binder

• 5 minsPMB including crumbed rubber binder

• 5 mins


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MRTS11 Update

Geotextile reinforced seals (Cl. 9):

• Reference to MRTS57 Geotextiles for Paving Applications added

Weak or cracked base

First binder application(bond coat)

GeotextileMain binder applicationSealing aggregate


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MRS11 Update

• New serial of standard work items and relevant work operations introduced:

Standard Item No. Description Unit of

Measurement

Seal design by the Principal

AAAASpraying bituminous material, treatment type [treatment type], binder [binder class], spray rate [spray rate], [including | excluding] supply of binder, excluding supply of additives, [location]

litre

BBBB Spreading prime cover material [material], [spread rate], [including | excluding] supply of prime cover material, [location] m3

CCCC Spreading cover aggregate [size], [spread rate], [including | excluding] supply of cover aggregate, [location] m3

Seal design by the Contractor

DDDD Initial treatment - Prime, [including | excluding] supply of binder, [including | excluding] supply of prime cover material [location] m2

EEEEInitial treatment - Initial seal, Type I-[S/S | D/D], cover aggregate size(s) [size(s)], [including | excluding] supply of binder, [including | excluding] supply of cover aggregate, excluding supply of additives, [location]

m2


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MRS11 Update

• Examples provided in guide notes

Standard Item No. Description Unit of

Measurement

FFFF

Secondary treatment / retreatment - type [S/S | D/D | HSS1-M | HSS1-H | HSS2-M | HSS2-H | XSS | SAM-S | SAM-R | SAMI | WP-A], cover aggregate size(s) [size(s)], [including | excluding] supply of binder, [including | excluding] supply of cover aggregate, excluding supply of additives, [location]

m2

GGGG

Secondary treatment / retreatment - type GRS-[S/S | D/D], cover aggregate size(s) [size(s)], [including | excluding] supply of binder, [including | excluding] supply of cover aggregate, [including | excluding] supply of geotextile [grade g/m²], excluding supply of additives, [location]

m2

HHHH Scatter coat, [including | excluding] supply of cover aggregate m2

General Work Items

IIII P Supply and addition of adhesion agent (Provisional Quantity) litre

JJJJ P Supply and addition of cutter oil (Provisional Quantity) litre

KKKK P Transport of bituminous material supplied by the Principal, [material], from [supply location] (Provisional Quantity) litre

LLLL P Return of excess bituminous material supplied by the Principal, [material], to [return location] (Provisional Quantity, if ordered) litre


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MRS11 Update

Methods of quantifying sprayed bituminous treatment(Cl.2.3):

Seal designed by the Principal: Quantified by the materials used

Seal designed by the Contractor: Quantified by area of seal applied

Cutter oil, adhesion agent, and transport of Principal supplied binder scheduled as separated work items to ensure appropriate application and payment fairness

For cutter oil and adhesion agent “Provisional Quantity” work items, limits of accuracy ± 100%

Standard work item for supply of binder is removed from the standard work item list

Supply of binder is included in relevant spraying or treatment work items and will not be quantified separately.


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MRS11 Update

Calculation of quantities (Cl. 2.4): Supply of binder is included in relevant spraying or treatment

work items and will not be quantified separately

Standard work item for return of excess bituminous material supplied by the Principal added. The quantity will be the actual quantity of bituminous material, at 15°C, returned by the Contractor, measured at the point of return

Supply of materials (Cl. 2.5): Binder, aggregate materials, and geotextile can be supplied by

either the Principal or the Contractor

Cutter oil and adhesion agent is always supplied by the Contractor.


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MRS11 Update

Return of excess Principal supplied bituminous materials (Cl. 4.1)

Where the return work item omitted in the Schedule of Rates, the payment to be as agreed by the Administrator and the Contractor

If an agreement cannot be reached, the Administrator will determine a rate based on quotations from a third party for work of a similar nature

If the excess Principal supplied bituminous materials are contaminated or considered by the Administrator as unsuitable for return, these materials shall be dealt with as directed by the Administrator.


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MRTS18 Update

• Why update? Deficiencies with TMR CRM binder requirements

Alignment with Austroads binder classifications

Sampling and testing requirements

Insertion of EN07 conformance requirements

• Consultation: August – September 2016

Feedback:

Metropolitan, Wide Bay and Central West Districts

Engineering and Technology – Laboratory staff

Australian Asphalt Pavement Association.


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MRTS18 Update

• Further amendments: Transfer of binder handling and storage requirements from

MRTS11 to MRTS18

Records:

binder “composition”

Sampling:

multiple transfers from a tanker during a single shift

Point-of-delivery requirements:

testing

guidance for Administrators.


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Sprayed Seal Design Supplement

• Why develop a Supplement? Which Austroads report?

AP-T68 AP-T236 AP-T310

Link the Austroads reports together Deficiencies with AP-T68:

Voids factor for very low volume roads Aggregate spread rates Flakiness index requirements for double/double seals Adjustment (Vt) to basic voids factor for traffic effects Ball embedment requirements Sprayed sealing with a variable rate spray bar Polymer factors for sprayed seal design Binders used for initial seals (primerseals).


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• Consultation: Sections 1-11: May-June 2016

Feedback from:

Metropolitan District

North Coast District

Fitzroy District

Darling Downs District

South West Districts

Australian Asphalt Pavement Association.


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• Further amendments: Address preliminary feedback

Section 12:

NACOE P36 project – TMR practice for primerseals

Release of AP-T310 in August 2016

Nonalignment between P36 findings and AP-T310.

AP-T310: Selection and Design of Initial Treatments for Sprayed Seal Surfacings

Project P36: Initial seals in Queensland


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• Issues with AP-T310: Recommendations vary significantly from historical TMR practices

Binder selection for initial seals (primerseals) varies significantly across the state:

Inconsistencies between TMR Districts

Inconsistencies within the same TMR District

A cutback bitumen selection table has been developed based on feedback:

promote greater consistency between TMR Districts

TMR has minimal experience with using polymer modified binders for primerseals

Further guidance for:

Foamed bitumen stabilised pavements

Use of bituminous emulsion binders.


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TMR District Typical Winter Grade Typical Summer Grade

Far North AMC6 AMC7 Northern AMC6 AMC7

North West AMC6 AMC7Central West AMC5 AMC7

Fitzroy AMC6 AMC7Mackay / Whitsunday AMC6 AMC7

North Coast AMC5 AMC62

Wide Bay / Burnett AMC6 AMC7Darling Downs AMC51 AMC62

South West AMC51 AMC7Metropolitan AMC5 AMC62

South Coast AMC5 AMC62

Typical grades of cutback bitumen used for initial seals


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Feedback on Specifications and Design Supplement• Feedback:

to: [email protected]

Template will be provided

Provide examples / data / suggested wording changes as part of the feedback

Proposed closing date: 14/04/2017.


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Thank you and stay connected

Twitter @TMRQld

Facebook @TMRQld

LinkedIn Department of Transport and Main Roads

Blog blog.tmr.qld.gov.au

Documents

2017-03-22 Approved Information session - Update to TMR ...€¦ · 3.5m drivers licensed 256,151 recreational vessel registrations 997,289 boat licenses 180 m in SEQ 12.1 outside