nano technology expert | lecturer at...

Nano Technology Expert | Lecturer at Al-Imam

Mohammed Bin Saud University, Riyadh

Lecturer at Al-Imam Mohammad Bin Saud University,

Riyadh , KSA

Bachelor in Chemistry, KSA

Diploma in English, Canada

Master's in Nanotechnology, Australia

Personal Development Coach

1. What/Why Nanotechnology?

2. Identification of different applications of

nanotechnology in constructions

3. Various nanomaterials in constructions

4. Real life examples

DEFINITION OF NANOTECHNOLOGY

WHAT IS NANO SCALE?

One nanometer (1 nm) is about 3 atoms long.

1 nm is equal to a billionth of a meter (10 -9 m).

Nanotechnology is defined as a material,

device, or system, which can be precisely

controlled in shape and size at a nanoscale.

This can be fabricated in particular designs,

productions, characterizations and used in

various applications.

“Bottom-Up Approach”

Creating Nano-scale

materials by physically or

chemically breaking down

large materials.

Assembling Nano materials

atom-by-atom or molecule-by-

molecule (self assembling).

what makes it important?

Applications of Nanotechnology in

Construction & Buildings

Nanotechnology is widely used in

construction material such as:

In Concrete

In Steel

In coating

In Glass & Ceramic

In Wood

Nanotechnology can modify the structure

of concrete material and finally improves

in properties of materials as:

1. Bulk density

3. Volume stability

4. Durability

2. Mechanical performance

5. Sustainability of concrete

Types of Nanomaterial used in concrete:

- (1%) Carbon nanotubes/nanofibers (CNTs/ CNFs)

- Nano silica (𝑛𝑎𝑛𝑜 𝑆𝑖𝑂2)

- Titanium dioxide (𝑛𝑎𝑛𝑜 𝑇𝑖𝑂2)

- Nanoclay particles

- Nano-iron (𝑛𝑎𝑛𝑜 𝐹𝑒2𝑂3)

Disadvantages:

Fatigue (stress rises)

small resistance against fire (>750 F)

Brittle' Under certain conditions steel

may lose its ductility (HAZ)

Need of Nanomaterials in Steel:

Vanadium (V) and molybdenum (Mo) NPs >>>

improve the delayed fracture problems associated

with high strength bolts

Magnesium (Mg) and calcium (Ca) NPs makes

the (HAZ) grains finer in plate steel >>> increase

in weld toughness

Copper NPs >>> reduces the surface roughness/

unevenness of steel & increases safety

Two international products of nanostructured steel

alloys in market:

Sandvik Nanoflex: (high qualities of a high

Young’s Modulus, high strength and

resistant to corrosion)

MMFX2 steel: Improved mechanical

properties compered to conventional steel

Fire protection (𝑛𝑎𝑛𝑜 𝑆𝑖𝑂2)

Self- cleaning & anti-dirt/fouling

surfaces (𝑛𝑎𝑛𝑜 𝑇𝑖𝑂2)

https://www.youtube.com/watch?v=hmHVeHsF8KA

𝒏𝒂𝒏𝒐 𝑇𝑖𝑂2 coatings on roads

for pollution reduction

Nano house , Australia

• Addition of Nanoparticles have shown significant

improvements than conventional construction

materials

• It is infinitely big and will make a lot of inventions

come true in construction and buildings

• http://www.nano.utexas.edu/resources

• https://www.slideshare.net/makadelhi/nanotechnology-11514618

• https://www.asme.org/engineering topics/articles /bioengineering / nanotechnology-connects-dots-disease-detection

• https://www.iupac.org/publications/ci/2009/31

• https://www.slideshare.net/subashjohn1/nano-solar-cells01/4 coulsey.html

• http://www.nanocare-ag.com/glas_keramik/

• http://www.seminarsonly.com/Civil_Engineering/nano-concrete-seminar-ppt.php

• https://www.slideshare.net/abiramprince/nanotechnology-for-security

• https://www.hessen-nanotech.de/mm/NanoEnergy_web.pdf

• http://www.nanowerk.com/what_is_graphene.php

• https://www.youtube.com/watch?v=qSYnGxzHA00

• http://www.understandingnano.com/nanotechnology-energy.html

• http://www.nanowerk.com/nanotechnology-in-energy.php