| Information |
AustStab provides the following technical papers and pictures for students and practitioners to carry out desktop research into soil stabilisation and road recycling. Normal copyright standards apply to all the articles and pictures found on this web site.
The association also produces a range of guidelines and tips for Australian practitioners in road stabilisation and these can be found by clicking here.
The association offers a comprehensive library for members and for more details, log on as a member. Australian students can request articles and these will be forwarded to your university lecturer or office location. All students will be required to pay a credit card deposit of $100 for any articles on loan.
Practitioners
The following technical papers are listed by subject index in descending order
from date of publication.
2007
Recognition of sustainability by using stabilisation in road rehabilitation by Warren Smith (Stabilised Pavements Group) and George Vorobieff (AustStab) Proceedings from Sustainability & Slag Conference, Australasian Slag Association (ASA), Sydney (NSW), 4 May 2007..
2006
The importance of stabilisation techniques for pavement construction by Tom D. Wilmot (Stabilised Pavements Group) Proceedings from 22nd ARRB Conference, Canberra (ACT), October 2006.
A new approach to determining working time for road stabilisation for all binder types by George Vorobieff (Australian Stabilisation Industry Association) Proceedings from 22nd ARRB Conference, Canberra (ACT), October 2006.
A new approach to laboratory testing of stabilised materials by George Vorobieff (Australian Stabilisation Industry Association) Proceedings from 22nd ARRB Conference, Canberra (ACT), October 2006.
Design of foamed bitumen layers for roads by George Vorobieff from AustStab, Proceedings from AustStab workshops on Road Stabilisation in QLD, February 2006.
Design and performance of dry powdered polymers by Glenn Lacey from Polymix, Proceedings from AustStab workshops on Road Stabilisation in QLD, February 2006.
2005
Recognition of environmental and social advantages of using stabilisation in road rehabilitation by Warren Smith from Stabilised Pavements of Australia, Proceedings from IPWEA NSW Division Annual Conference 2005, Parramatta, NSW, 24 May 2005.
Pavement detailing for foamed bitumen works by Vorobieff, G from AustStab, Proceedings from Workshop on Road Stabilisation, Wagga Wagga, NSW, 23 February 2005.
Techniques to use on roads affected by salinity by Vorobieff, G from AustStab, Proceedings from Urban Salt 2005 Conference, Parramatta, NSW, 8-9 February 2005.
2004
Oxford Street, Epping – Pavement rehabilitation using foamed bitumen stabilisation by Southey, A from Stabilised Pavements of Australia Pty Ltd [Not Published] 10 August 2004.
Patching Techniques - A review from Australia by G Vorobieff, Proceedings from NZIHT Stabilisation of Road Pavements Seminar, Auckland, NZ, 28-29 June 2004.
Modification versus Bound Pavements by G Vorobieff, Proceedings from NZIHT Stabilisation of Road Pavements Seminar, Auckland, NZ, 28-29 June 2004.
Austroads Construction Best Practice Guide by G Vorobieff, Proceedings from NZIHT Stabilisation of Road Pavements Seminar, Auckland, NZ, 28-29 June 2004.
Chemicals used in Australia by G Vorobieff, Proceedings from NZIHT Stabilisation of Road Pavements Seminar, Auckland, NZ, 28-29 June 2004.
Bitumen Stabilisation – An Australian Perspective by G Vorobieff and N Preston, Proceedings from NZIHT Stabilisation of Road Pavements Seminar, Auckland, NZ, 28-29 June 2004.
Do Dry Powdered Polymers Work? by G Lacey, Proceedings from NZIHT Stabilisation of Road Pavements Seminar, Auckland, NZ, 28-29 June 2004.
Stabilisation practices in Australia by G Vorobieff, Proceedings from NZIHT Stabilisation of Road Pavements Seminar, Auckland, NZ, 28-29 June 2004.
2003
Performance of bitumen treated bases by M Dykman, JM Ramanujam and A Nataatmadja Proceedings from 21st ARRB Conference, Cairns (QLD), May 2003.
The development of a research protocol and fit-for-purpose certification for road additives D Jones and S Emery Proceedings from 21st ARRB Conference, Cairns (QLD), May 2003.
Detailed investigation of the performance of GB Cements in pavement stabilisation works stabilisation by Warren Smith (SPA) and Bruce Hansen (Brisbane City Council) Proceedings from 21st ARRB Conference, Cairns (QLD), May 2003.
A new approach to pavement design using lime stabilised subgrades by George Vorobieff (Australian Stabilisation Industry Association) and Greg Murphy (Pavement Technology) Proceedings from 21st ARRB Conference, Cairns (QLD), May 2003.
Patching of Pavements by Stabilisation using Skidsteer Equipment by AustStab, 12 December 2003.
2001
Opportunities for improved unsealed road asset management with chemical stabilisation by Robert Andrews (Transport SA) Proceedings from 20th ARRB Conference, Melbourne (Vic), March 2001.
Evaluation of stabilised marginal pavement materials using established and newly developed cementitious binders Maurice Serruto (Blue Circle Southern Cement Ltd) and Lucas Pardo (Chadwick Geotechnical Testing Pty Ltd) Proceedings from 20th ARRB Conference, Melbourne (Vic), March 2001.
Insitu foamed bitumen stabilisation - The City of Canning Experience by Colin Leek (City of Canning Western Australia) Proceedings from 20th ARRB Conference, Melbourne (Vic), March 2001.
Foamed bitumen stabilisation - The Queensland experience by Martin Kendall, B Baker, Peter Evans & J Ramanujan (Queensland Department of Main Roads) Proceedings from 20th ARRB Conference, Melbourne (Vic), March 2001.
Polymer stabilisation of clayey gravels by Bruce Rodway (Bruce Rodway and Associates Pty Ltd) Proceedings from 20th ARRB Conference, Melbourne (Vic), March 2001.
A reassessment of the use of ligno sulphonate as an additive for unsealed roads by David Jones and M Mitchley (Transportek, CSIR, South Africa) Proceedings from 20th ARRB Conference, Melbourne (Vic), March 2001.
The incorporation of dust palliatives as a maintenance option in unsealed road management systems by David Jones, E Sadzik, I Wolmarans (Transportek, CSIR, South Africa) Proceedings from 20th ARRB Conference, Melbourne (Vic), March 2001.
Australian experience on subgrade stabilisation and pavement recycling by G Vorobieff & T Wilmot, Proceedings from 1st International Symposium on subgrade stabilisation and insitu pavement recycling using cement, Salamanca, Spain, 1-4 October, 2001 .
2000
Characterisation of foam bitumen stabilised pavement J Ramanujam & Jones J Proceedings Road System and Engineering Technology Forum 2000 Qld Department of Main Roads, Bardon Centre, 9-11 August 2000.
1990 to 1999
Foamed bitumen stabilisation M Kendall, B Baker, P Evans & J Ramanujam, Proceedings Roads at Work - Developing Southern Queensland, Southern Region Symposium, Qld Department of Main Roads, Goondiwindi, 21 October 1999 [Note: Many diagrams and photos in this paper 1.2Mb].
Stabilised pavements - selecting the additive Wilmot, T and Rodway, B, Proceedings of The International Congress on Local Government Engineering and Public Works, Sydney, August 1999.
Rethink of the design philosophy of lime stabilisation by Peter Evans (Department of Main Roads QLD), Warren Smith (Stabilised Pavements of Australia) and George Vorobieff (Australian Stabilisation Industry Association) Proceedings from 19th ARRB Conference, Sydney (NSW), December 1998.
Performance of local roads by insitu stabilisation by M Pike (Macquarie Lakes Shire, NSW), Pat Kenny (University of Technology, Sydney) and George Vorobieff (Australian Stabilisation Industry Association) Proceedings from 19th ARRB Conference, Sydney (NSW), December 1998.
The Australian Experience! by G Vorobieff, Proceedings from National Pavement Stabilisation Strategies for the Future Symposium, Rotorua, NZ, 18-20 October, 1998 .
Construction Issues: Getting it right first time N Crase, Brisbane City Council, Insitu Stabilisation of Local Government Roads Seminar, Brisbane City Council and AustStab, 20 January 1998.
Performance and Design of Insitu Stabilised Local Government Roads G Vorobieff, AustStab, Insitu Stabilisation of Local Government Roads Seminar, Brisbane City Council and AustStab, 20 January 1998.
Is Road Recycling a Good Community Policy? T Wilmot & G Vorobieff. 9th National Local Government Conference Proceedings, Melbourne 24-29 August 1997.
Update on Lime Stabilisation by Peter Evans, Queensland Main Roads QMR Technology Transfer Seminar, Brisbane 12 July, 1997
Application of Research in Road Stabilisation by George Vorobieff Proceedings of Stabilisation in Road Asset Management Seminar, Wembley, WA 7 July, 1997
Cementitious Binder Options G Vorobieff, Proceedings of Stabilisation in Road Asset Management Seminar, Wembley, WA 7 July, 1997
Research and Emerging Trends in Road Stabilisation by George Vorobieff Proceedings of Cement Stabilised Pavements Course, Vermont South, Victoria, 22 May, 1997
Australian Pavement Research - the Last Twenty Years Geoff Youdale, Consultant Road Note 50, March 1996.
Fifty Years of Stabilisation President of AustStab Road Note 50, March 1996.
Insitu Stabilisation in Local Government Errol Jones, Retired Engineer in Charge, Research and Development, BCC Road Note 50, March 1996.
Road Rehabilitation by Recycling Project by George Vorobieff, Proceedings of Road Recycling of Local Government Roads Seminar, Brisbane, QLD 29 February, 1996
The Development of Deep Lift Insitu Recycling using Slow Setting Additives within the Bega District by Mal Bilaniwskyj RTA Wollongong Zone Office, Proceedings of Workshop on Pavement Recycling Technology, Canberra, October 1994.
Deep Lift Insitu Stabilisation - Construction Phase by Joe Krsul RTA Bega District Office, Proceedings of Workshop on Pavement Recycling Technology, Canberra, October 1994.
Selection of Additives for Stabilisation and Recycling of Road Pavement Tom D Wilmot, Dip.D.E.RMIT, FIE Aust, Director, Stabilised Pavements of Australia P/L Part 3, Proceedings 17th ARRB Conference, Gold Coast, Queensland, August 1994.
Control Of Reflective Cracking Scott C. Matthews Regional Manager, Victoria Cement & Concrete Association of Australia Cement Stabilised Pavements Course, C&CAA, South Melbourne, Victoria, 6 May 1993.
Long-Term Performance Of Local Government Road Pavements Recycled By Cement Stabilisation J.R. Hodgkinson, Senior Engineer, Roads and Pavements, Cement & Concrete Association of Australia Proceedings of 6th National Local Government Engineering Conference, Hobart, August, 1991.
The Association has been assisting academics and students since 1995. Some Civil Engineering students wish to select a undergraduate or postgraduate project that has an industrial application, and the following topics could be considered for their research work on soil stabilisation of various types of pavements.
Students should discuss these topics with their
supervisor. Should you require more information on the topic please send
an email to Greg White, Chief
Executive Officer, AustStab.
1.
Bulking of stabilised materials occurs during insitu construction and it is a
result of the looser density of the material after pulverisation and the addition
of a binder in the mixing process. There is no known relationship between
bulking height and the existing pavement material or the addition of the
binder. This project should look at the factors that influence bulking and
if possible develop a relationship between key factors and the bulking height.
For more background reading refer to AustStab
Construction
Tip 4 - Two pass mixing.
2. Mixing efficiency is an important factor in the success of road stabilisation, and mixing efficiency various according to pug-mill and insitu operations. Some practitioners note that pug-mill equipment is not as vigorous as insitu mixing inside a large reclaimer. The aim of this project is to consider the development of a repeatable and reliable test method for the measurement of mixing efficiency for powder binders for insitu stabilisation. For more background reading refer to AustStab Construction Tip 1 - Profilers versus stabilisers and AustStab Construction Tip 4 - Two pass mixing.
3. There is no known practitioners guidelines for the timing of the addition of lime or cement with foamed bitumen for insitu foamed bitumen stabilisation. The aim of this project is to consider a laboratory procedure that will support a decision to add the lime or cement and mix simultaneous with the foamed bitumen or carry out the mixing of lime or cement a day or hours before mixing with foamed bitumen. For more background material refer to the ARRB Conference papers by either C Leek or M Kendall et al, or AustStab Construction Tip No.3 - Foamed bitumen stabilisation.
4. The use of dry powdered polymers (DPPs) for road stabilisation are known for their ability to water proof the pavement material such that granular (unbound) materials support traffic in the wet. The aim of this project is to develop a test procedure to determine the design modulus for stabilised granular materials using DPPs. For more background material refer to the ARRB Conference papers by either R Andrews or B Rodway, or AustStab Construction Tip No.6 - Stabilisation using dry powdered polymers.
5. Granular stabilisation is becoming more widely used for unsealed and sealed roads due to its effectiveness of utilising the existing granular material or importing some extra material to improve grading. One of the challenges is that there is little data on the estimated life and the life cycle costing. The aim of this project is to gather data from Shire engineers and contractors to develop a life cycle costing model for granular stabilisation of light trafficked roads. For more background material refer to the ARRB Conference paper by D Jones and M Mitchley or National AustStab Guidelines No.2 - Life cycle costing.
6. The use of some sandstone type pavement materials for insitu recycling is difficult as the ability of the material to compact is hindered by the greater compaction energy tends to change the particle size distribution and lead to greater difficulty in achieving maximum compaction. The aim of this topic is look at the mechanism which provides best compaction in terms of particle shape distribution and moisture content of the material. For more information refer to APRG Technical Note No. 9 - Insitu Stabilisation of Marginal Materials.
7. Lime modification for unsealed roads - Unsealed roads are an effective method for vehicle access when little road funding is available and low traffic volumes exist. However, these roads require regular maintenance, may be unusable when wet and generate dust when dry. The addition of lime will reduce the PI, swell, potential for erosion and permeability, leading to a more stable material when wet. In addition, this process may allow traffic to be used sooner after the pavement becomes saturated. One of the challenges with lime modification is to establish one or suitable laboratory tests that guide practitioners to the optimum amount of lime into the pavement material.
8. Lime treatment for acid sulphate soils - Our knowledge of the impact of building infrastructure in acid sulphate soils has increased over the last 20 years but construction practices appear to be primitive. This project is to examine effective mixing treatments with different grades of agricultural lime for land developments. The student should determine whether the grade of lime or the mixing technique leads to the best long term outcome for the treatment for acid sulphate soils.
9.
Mellowing of lime treated subgrade materials - The application of quicklime or hydrated lime to subgrade materials is a function of the wetness and extent of clay content in the subgrade material. In some cases experience has shown that half the application should be mixed and left untouched for a period of 12 to 72 hours prior to the final application and mixing. This waiting time is typically called ‘mellowing’ and is difficult to estimate until a trial is carried out on site.
This project is to develop a suitable laboratory test to estimate the time require for mellowing in the field in order to provide this information at tender stage.
Under construction.
[2 Mar 2007]