PJPJMMP Nanotechnology in Construction 2 nd Intl. Symposium, Bilbao, 13-17 th Nov. 2006 f ROADMAP...

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Nanotechnology in ConstructionNanotechnology in Construction22ndnd Intl. Symposium, Bilbao, Intl. Symposium, Bilbao,

13-1713-17thth Nov. 2006 Nov. 2006

f ROADMAP for

NANOTECHNOLOGY in CONSTRUCTION

Peter JM Bartos

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Nanotechnology in ConstructionNanotechnology in Construction22ndnd Intl. Symposium, Bilbao, 13-17 Intl. Symposium, Bilbao, 13-17thth Nov. 2006 Nov. 2006

Introduction 1: Scottish Centre for Nanotechnology in

Construction Materials & ACM Paisley Characterisation of interfacial properties in

complex fibre reinforced brittle matrices (nanoindentation, push-in/push-out tests)

EC Project Nanoconex (2003-4) RILEM TC197-NCM (2002-6, chaired by PJMB)RILEM TC197-NCM (2002-6, chaired by PJMB)

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Introduction 2: STATE-of-the-ART ( published by

RILEM in 2004) = benchmark for Aims and Destinations

Routes & Pathways (infrastructure), Vehicles, Drivers and Environment

Charts with time-scales

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Infrastructure, required to pave the way forward includes:

Instrumentation, methodology Numerical modelling, multi-scale -

integrated Advance in standardization related

to nano-scale metrology (reliability of measurements)

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Drivers of progress:Competitiveness, investment return, environmental concerns

Vehicles for advance: Europe-FP5;FP6;FP7… national,

international nano-linked programmes

!! Very small proportion is currently construction-related !!

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Conditions & environment for setting up / developing routes / pathways:

Knowledge - technology transfer Education and training (necessary for technology transfer - currently

inadequate?) Market pull (new products envisaged) Venture capital, public funding

(medium-long period of return)

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ROADMAP: an overall map is not practicable charts are constructed

Specimen charts such as for a specific construction sector (buildings) or construction materials are developed, estimating progress from current bases to aims / destinations over a 25yr period

Similar charts can be established for sub-sectors in more detail or for other criteria, even across the charts presented

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TIMESCALE (years) Present 0 5 10 20 25+ Destination

Novel construction materials

Construction materials ‘built’ from basic nano

-scale basic

components. Extreme strength and toughn

ess; no health hazard;

acceptable degree of sustainability of resources, environmentally

harmless on local/global scale

EXISTING CONSTRUCTION MATERIALS

Composites with self-adjusting interfaces

Bio-mimetic materials

Active nano-coatings

Smart materials, shape memory, self -repairing, strain hardening

Novel, controlled and durable fracture mechanisms

Stronger, tougher, lighte r and more durable composites

NANOCONEX ROADMAP: Chart 3 – NOVEL MATERIALS

Photovoltaic materials

Safety and security

Exploitation of nanoparticles, nanotubes, nanofibres

Unforeseen developments?

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RoNaC Charts:assumptions and simplifications:

Magnitude of the research effort is not shown Constant rate of development, no interruptions

(unforseen technical / financial / environmental problems may arise)

Only major interactions with ‘adjacent’ activities are shown

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Advanced Bulk Materials

Negligible / zero / positive environmental impact, sustainable resources, pre

-set grading of properties replaced by

properties

optimised for applications

Steel

Concrete

corrosion resistant construction steel

low energy cement

novel, non-traditional binders

nano-layers/coatings ductile cements & tougher concrete

Ceramics, bricks, glass

self-cleaning glass

bio-active surfaces

Timber

modified wood for construction, fast growing defect-free, dense/strong

NANOCONEX ROADMAP: Chart 1 - Bulk Construction Materials

Bitumens

,

polymers

tougher ceramics

nanofillers

molecular assembly of new polymers

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Buildings of Future

Zero or positive energy balance; maximum sustainability

of resources; integrated lifespan of materials and

components;

minimum maintenance; healthy environment; recyclable materials

& components

BUILDINGS of TODAY

Embedded sensors, condition monitoring and diagnostic devices

High performance insulating materials

High thermal mass materials

Active nano-coatings

Smart materials and components

self-cleaning glass and bio-active surfaces

Stronger, tougher, lighter and more durable com posites

NANOCONEX ROADMAP: Chart 2 – Buildings of Future

Safety and security

Photovoltaic surfaces & solar cells – roofs & cladding

Fibre-optic and microchip control systems

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Nanotechnology in ConstructionNanotechnology in Construction

22ndnd Intl. Symposium, Bilbao, 13-17 Intl. Symposium, Bilbao, 13-17thth Nov. 2006 Nov. 2006

f CONCLUSIONS:CONCLUSIONS:

The Roadmap Charts reflect current situation / predictions: periodic updates are therefore recommended

Accuracy of the predictions is limited by fragmentation of current RTD and its uneven progress

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Nanotechnology in ConstructionNanotechnology in Construction

22ndnd Intl. Symposium, Bilbao, 13-17 Intl. Symposium, Bilbao, 13-17thth Nov. 2006 Nov. 2006

f CONCLUSIONS:CONCLUSIONS: Progress will be accelerated if research were integrated Existing SME’s, forming the bulk of construction

industry are poorly suited as vehicles for progress in exploitation of nanotechnology

Ecological, environmental and health & safety impacts of nanotechnology will have to be constantly monitored and applicable regulations and legislation amended and/or developed

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f ROADMAP for

NANOTECHNOLOGY in CONSTRUCTION

Peter JM Bartos

PJPJMMP Nanotechnology in Construction 2 nd Intl. Symposium, Bilbao, 13-17 th Nov. 2006 f ROADMAP...

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