This document discusses the application of nanotechnology in civil engineering. It begins by defining nanotechnology as the study and manipulation of matter at the nanoscale, between 1-100 nanometers. It then outlines several areas of civil engineering where nanotechnology can be applied, including construction, coastal, earthquake, transportation, materials and structural engineering. Specific nanomaterials discussed include carbon nanotubes, titanium oxide, nano silica, and fly ash. Applications explored are using these nanomaterials to enhance the properties of construction materials, reduce costs, and improve durability. The document provides examples of uses in coatings, composites, concrete, glass and more.

1. NANOTECHNOLOGY
APPLICATION IN CIVIL ENGINEERING
By;- Manjesh Kumar Gupta(02020703416)
Mukhtar Tanzeem(02520703416)
Md Obaid Rub(02320703416)
Vivek Agrahari(05120703416)

2. ABOUT NANOTECHNOLOGY
• NANO, is Greek word which
means dwarf.
• Nanotechnology is a branch of
science that deals with the
minutes of particles 1-100
nanometer in size[1].
• One nanometer is billionth of a
meter.

3. • Nanotechnology refers to
understanding and
manipulation of matter on
NANO, atomic & molecular
scale .

4. APPLICATION IN CIVIL
ENGINEERING
• Construction Engineering
• Coastal Engineering
• Earthquake Engineering
• Transportation Engineering
• Materials Engineering
• Structural Engineering
• Geotechnical Engineering

5. NANOTECHNOLOGY IN CIVIL
ENGINEERING
• Nanotechnology can be used for design and construction
processes in many areas.
• These characteristics can significantly fix current
construction problems and may change the requirement of
construction process.
• To enhance properties of material used in construction.
• To satisfy the general aspect of people i.e. of quality,
control & reliability.
• To reduce cost of constructing structures.

6. NANOMATERIALS
• CNT (Carbon Nano Tubes)
• TiO2(Titanium Oxide)
• SiO2( Nano Silica)
• Fly Ash

7. NANO SILICA
• It is the first Nano product
that replace the micro
silica[2].
• Advancement made by
the study of concrete at
Nano scale have proved
Nano silica much better
than silica used in
conventional concrete[2].

8. NANO SILICA
• NANO SILICA when added
to cement base materials
can control the degradation
of the fundamental C-S-H
(calcium silicate hydrate)
reaction of concrete hence
block water penetration and
therefore leads to improvement in DURABLITY[3].

9. CARBON NANOTUBES (CNT)
• Allotropes of carbon with
a cylindrical nanostructure.
• Properties are:- very high
Tensile strength, thermal
conductivity, stiffness[4].
• Categorized as Single-walled
nanotubes and multi-walled
nanotubes.

10. • Carbon Nano tube can be
categorised by their structure.
• Single-wall Nanotube
(SWCNT)
• Multi-wall Nanotube
(MWCNT)
CLASSIFICATION OF CNT

11. USE OF CNT
• Used in place of steel as it has 100 times of compressive
strength of steel[4].
• Improve performance of vessels
• Used in turbines, marine paints.

12. TITANIUM OXIDE(TIO2)
• Ninth most common element
• Commonly found in ores, indigenous dusts, sands and
soils.

13. • NANOTiO2 is a UV-
resistant material[6].
• TiO2 as a nanomaterial
is not used as a colorant
as it is functionally
different from pigment
size particles and will
not impart colour or
opacity to a product[7].

14. USE OF TIO2
Used in paints coatings, adhesives, floor
coverings, water treatment agents.
• It protect us from depletion of
ozone layer as it act as UV-
resistant material nano TiO2
coating can be applied to building
exterior to prevent sticking of pollutant and
thus reduced maintainance cost[6].
,,,

15. FLY ASH
• Fly ash is a fine powder produced as a product from industrial plants using
pulverised coal or lignite as fuel[5].
• Fly ash, a waste by product of power plant has been increasingly used in cement
and concrete materials because of many advantages , such as reduced carbon
foot prints, increased flow ability, decreased hydration heat, enhanced long term
strength growth, reduced shrinkage, improved durability, and lower cost[5] .
• Spherical in shape, finer than cement particles.

16. FLY ASH IMPROVES:-
• Performance and quality of concrete
• Improves workability of concrete.
• Reduce water demands.
• Lowers heat of hydration.
• Increases strength
• Reduce permeability

17. USES OF FLY ASH:-
• The most common use of fly ash is as a partial replacement for
Portland cement used in producing concrete.Replacement
rates normally between 20% to 30%,but can be higher.
• Fly ash reduces Green House Gases,as the production of one
ton of Portland cement generates approximately one ton of
CO2 compared to no CO2 generated with Fly ash.
• For Roller Compacted concrete[RCC] used in
construction,replacement values of 70% have been achieved
with processed Fly ash at the Ghatghar dam project in
Maharashtra,India.

18. USE OF NANOTECHNOLOGY
IN CONCRETE
• It increases compressive and flexural
strength of concrete
• It is used for producing
self-healing polymer so that it
can fix micro cracking in bridges piers and columns.
• A fibre sheet containing nano-silica particles and
hardners used In wrapping of concrete which increase
strength.

19. USED TO MAKE STRUCTURAL
COMPOSITE
• A low carbon, high performance steel (HPS) for bridges
with high corrosion resistance and weld ability is
developed by incorporating copper nanoparticles.
• Sandvik NanoflexTM is new stainless steel which is light
weight, good corrosion resistance & formability.
• CNT steels are 100 times stronger than steel and only one-
sixth of weight.

20. Nanotechnology used in
COATINGS
• Coatings incorporating certain nanoparticles developed
for certain purposes including:- protective or anti-
corrosive coatings, self cleaning, thermal control, energy
saving, anti-reflection coatings for glass/windows, anti-
bacterial coatings.

21. NANOTECHNOLOGY USED IN
GLASS
• Fire protective glass. It is achieved by using fumed silica (sio2)
nanoparticles.
• Nano-tio2 coatings can be applied to building exteriors to
prevents sticking of pollutants and thus reduces maintenance
costs.
• Titanium dioxide(Tio2) is used to coat glazing since it has
sterilizing and anti fouling properties .The particle catalyze
powerful reaction which breakdown organic pollutant volatile
organic compound and bacterial membranes.

22. • TiO2 is hydrophilic and this
attraction to water forms
sheet out of rain drops
which then wash off the dirt
particles broken down in the
previous process. Glass
incorporating this self
cleaningTechnology is
available on the market
today.

23. NANOTECHNOLOGY IN INDIA
• The first project on nanotechnology in India was funded in
march 2004 (Rs 60 Crore).
• The amount India spend on nanotechnology research is
still just a fraction of developed countries.
• In 2004, the worldwide investment on nanotechnology
research was almost $8.6 Billion.

24. REFERENCES
• [1]N.Venkat Raoa*, M. Rajasekharb, K.Vijayalakshmic, M.Vamshykrishnad .
• [2]EFFECT OF COLLOIDAL NANO SILICA (CNS) ON PROPERTIESOF HIGH
STRENGTH CONCRETEAT ELEVATEDTEMPERATURE ,V. R. Rathi,Dr. C. D.
Modhera.
• [3]Vishutosh Bajpai, Prof. Kirti Chandraul2, Prof. Manindra Kumar Singh,
“EXPERIMENTAL STUDY ON PARTIAL REPLACEMENT OF CEMENTWITH NANO
SILICA IN CONCRETE”, International Research Journal of Engineering and
Technology (IRJET) ,e-ISSN: 2395-0056,5(1),2018.
• [4]W. Zhu1, P.J.M. Bartos1 and A. Porro2 (1) ACM Centre, University of Paisley, UK
(2) Fundación Labein, Spain .
• [5]V. R.RATHI,C.D. MODHERA Department of Applied Mechanics, S.V.N.I.T. Surat -
395007, Gujarat.
• [6] NANOMATERIALSAND NANOTECHNOLOGIES FOR CIVIL ENGINEERING
BY RADUOLAR* “GheorgheAsachi”Technical University of Iaşi, Faculty of Civil
Engineering and Building Service

25. Thank you
Thank You