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Overview of projects undertaken by CSIR BE

Overview of projects undertaken by CSIR BE. Prof Wynand JvdM Steyn CSIR Built Environment TUT. Content. CSIR Structure Purpose in life Funding sources Focus areas External projects SRP projects PG projects PG details Nanotechnology in pavement engineering

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Overview of projects undertaken by CSIR BE

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  1. Overview of projects undertaken by CSIR BE Prof Wynand JvdM Steyn CSIR Built Environment TUT

  2. Content • CSIR • Structure • Purpose in life • Funding sources • Focus areas • External projects • SRP projects • PG projects • PG details • Nanotechnology in pavement engineering • Application of soil mapping to road engineering • Summary © CSIR 2007 www.csir.co.za

  3. CSIR structure Leadership Built Environment Defence, peace, safety & security Biosciences Information and communications technology Materials science & manufacturing Natural resources & the environment Laser technology Space technology © CSIR 2007 www.csir.co.za

  4. CSIR BE structure Built Environment Planning support systems Construction Infrastructure engineering Architectural sciences Infrastructure systems & operations Logistics & quantitative methods Rural infrastructure & services Agencies: Agrément SA Asphalt Academy © CSIR 2007 www.csir.co.za

  5. CSIR purpose in life • directed and multidisciplinary research • technological innovation & industrial and scientific development • improve quality of life of the country’s people • supporting innovation • improve national competitiveness in the global economy © CSIR 2007 www.csir.co.za

  6. CSIR funding sources • External (75%) • Local and international • Focused research and specialist consultancy • Answer the questions of the client • Solving specific problems • Internal (25 %) • Parliamentary grant (PG) • Strategic Research Programme (SRP) • Develop new fields of study © CSIR 2007 www.csir.co.za

  7. Infrastructure Engineering Focus areas • Transport Infrastructure Engineering • Accelerated Pavement Testing • Advanced Material Testing / Rock Mechanics Laboratory • Coastal engineering and ports infrastructure • Housing Technology and Building Physics © CSIR 2007 www.csir.co.za

  8. External projects (current / recent major) • SA • GDPTRW asphalt study • SANRAL thin concrete • SANRAL SAPDM • PAWC LTPP and LIC • Africa • Ghana design manual • Uganda lime project • Ethiopia investigation • International • CALTRANS pavement research (concrete, WA, riding quality, etc) © CSIR 2007 www.csir.co.za

  9. SRP projects • Strategic Research Programme funding • 2 to 3 years • Stimulate knowledge based technological innovation in support of the CSIR mandate and the DST ten-year innovation plan • Supports achievement of impact in the following areas • Enhanced competitiveness of the local industry • Improved quality of life of the people of South Africa • Contribution to skills development and human capital development • Currently 3 • Nano-phosphor • Renewable road binders • Advanced digital image port engineering © CSIR 2007 www.csir.co.za

  10. Parliamentary Grant (PG) projects • Flagship project - Innovative technologies and solutions for enhanced road system performance • Innovative • Refer to both radical and incremental changes to products, processes or services • Goal of innovation is to solve a problem • Road infrastructure key driver supporting and stimulating socio-economic development • Uniquely SA solutions developed, calibrated & validated • Optimal & sustainable utilisation of limited resources • Concerns • Current condition • Traffic volumes and mass • Material availability • Logistics costs • Human capacity © CSIR 2007 www.csir.co.za

  11. Tasks, progress and main findingsGeneral • Mostly 3 year projects with ongoing focus • Support of Type A, B and C research questions • Support of current and planned externally funded projects • Specific HR development © CSIR 2007 www.csir.co.za

  12. Tasks, progress and main findingsMaterials • Recycled Materials - Secondary cementation • Chemical and liquid stabilisers - Physical Bonding • Durability and performance of stabilised materials - 2 x Carbonation Theories • Stabilised material curing – Lab vs Field • Application of soil mapping to infrastructure/geotechnical engineering • Structural failures of the road environment (non-pavement): Slope Stability • Nano technology applications in pavement materials • Performance prediction of bitumen based on chemical analysis • Chemical properties of materials- Accelerated laboratory ageing – long term performance © CSIR 2007 www.csir.co.za

  13. Tasks, progress and main findingsPavement engineering • FEM development and verification, including development/improvement of PADS suite • Limit state design of concrete – Ultra-Thin Steel Fibre Reinforced Concrete • Advanced deflection analyses - Differences between the deflection and hence stiffness results from different devices • Concrete pavement studies – focus on environmental issues © CSIR 2007 www.csir.co.za

  14. Tasks, progress and main findingsAdvanced measurement • Advanced observational techniques of materials – CT Scans, SEM and Atomic Force Microscopy • CSIR BE Laboratory accreditation procedure completion • Advances in existing test methods – i.e. strain-at-break, tri-axial, dust and spray monitors - concentrate on field strain-at-break apparatus, Hamburg & TWTT • Concept development of new-generation HVS & associated equipment © CSIR 2007 www.csir.co.za

  15. Tasks, progress and main findingsInteraction • Mitigation of solar radiation – focus on temperature and durability – ThermalPADS • Advanced SIM analysis – Including framework for tyre Contact Stress Information System & MK V SIM device © CSIR 2007 www.csir.co.za

  16. PG project - Nanotechnology for pavement engineering • Nanotechnology focuses on nanoscale • Chemistry and Physics - basic sciences – nanotechnology tools • Engineering – applied science – client of the basic sciences • Basic focus vs engineering focus • Objectives • Scale © CSIR 2007 www.csir.co.za

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  19. Engineering applications • 2 main areas • Improved materials development • Characterisation of materials © CSIR 2007 www.csir.co.za

  20. Improved materials - 1 • Focus - Scarcity of materials • Typical methods • Fracture behavior • Self healing materials • Concrete enhancements • Carbon Nanotubes • Nanophosphors © CSIR 2007 www.csir.co.za

  21. Improved materials - 2 • Nanophosphors © CSIR 2007 www.csir.co.za

  22. Characterisation - 1 • Require improved understanding of material behavior • Typical examples • AFM • SEM © CSIR 2007 www.csir.co.za

  23. Characterisation - 2 © CSIR 2007 www.csir.co.za

  24. Characterisation - 3 © CSIR 2007 www.csir.co.za

  25. PG Project - Application of soil mapping to infrastructure engineering • Most countries have soil maps at various scales • Mapped at 1 : 50 000, Published at 1 : 250 000 • Based on land types • Maps accompanied by wide range of soil descriptors • Mainly for agricultural application • Some engineering properties, eg, Atterberg limits • Potentially very useful for road engineering • Little use is currently made in road engineering • Application to road engineering • Material thicknesses and depths • Classification and mineralogy of soils • Early identification of potential problem soils © CSIR 2007 www.csir.co.za

  26. Web-based maps • Use revised soil patterns (grouping of certain patterns) • Can alter scale on the screen • Add and remove features (roads, water, cadastral info, etc) • Various derived maps, eg, swelling clays • Use of maps for Road Engineering • Plot road on map • Note topography, water, soil patterns • Confirm as best route • Look at soil patterns • Fewer the patterns the more consistent the material • Less centre-line testing required • Refer to inventory data and profiles © CSIR 2007 www.csir.co.za

  27. Requirements for roads • Planning • Road location • Areas with least problems • Difficult hydrologic, topographic, hard rock conditions, etc • Avoid poor areas by realigning early • Take into account extra costs and precautionary measures • Subgrade conditions • Nature and thickness of subgrade soils • Potential problems • Expansive • Collapsible • Dispersive • Potential subgrade strength © CSIR 2007 www.csir.co.za

  28. Requirements for roads • Material location • Maps indicate poorly developed soils (lithosols and rock outcrops) • Inventories indicate exposure of rock and rock type • Early indication of possible gravel and quarry sites • Also show depth of soil, excavatability, plinthic horizons (laterite), hardpan calcrete, etc © CSIR 2007 www.csir.co.za

  29. Summary • Research focusing on solving existing and future problems • Both current hands-on and medium to long term view • Led by industry requirements © CSIR 2007 www.csir.co.za

  30. READ and LEARN! CSIR Knowledge Portal http://www.csirkms.co.za/default.php Pavement Interactive http://pavementinteractive.org © CSIR 2007 www.csir.co.za

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