Goa Engineering College was founded in 1967 and the year 2016-17 marks the Golden Jubilee year The event to celebrate was supported by the International Conference on Advances in Concrete Technology, Materials and Construction Practices in collaboration with Government Polytechnic, Bicholim and University of Bath, UK. The event was also an outcome of United Kingdom India Education Research Initiatives (UKIERI) project on “Development of structural concrete with plastic waste as partial replacement of sand”.For the first time in the history of international engineering conferences in India there was a session on “Nanotechnology Applications in Concrete”. The conference also had exhibition stalls where products were displayed by ACC, MC-Bauchemie, etc

1. Prof.Mainak Ghosal
[MIE,MISC,MIAStruct.E,FIV]
–PRESENTER
&
Prof.Arun Kr. Chakraborty
Dep’t of Civil Engineering,IIEST,Shibpur,India.
(Formerly Bengal Engineering & Science University)
22nd -- 24th June,2016

2.  Has written over 150 Technical Reports
 Has Authored over 15 Technical Papers
 Formerly Asst. Engineer,PHED,Gov. of
W.B
 Adjunct Professor,JIS College of
Engineering
 Consultant/Registered Valuer,CBDT,Gov.
of India
 Research Scholar, Dep't of Civil
Engg.,IIEST,Shibpur
 Is a Life Member of –
* Indian Science Congress
* Institution of Engineers[I]
* Indian Concrete Institute
* Indian Association of Structural Engineers
* Institution of Valuers
* Consulting Engineers Association of India
& Several other Organizations……

3.  “The construction
industry was the only
industry to identify
nanotechnology as a
promising emerging
technology in the UK
Delphi Survey in the early
1990s…
“Application of Nanotechnology
in Construction”, Materials and
Structures, 37, 649 (2004),
Springer
 By 2030 India’s Population is
expected to cross 1.5 billion
mark - surpass China in
terms of Population….means
a 800 million square meters
of residential & commercial
space needs to be built
annually up to 2030
 Death in every minute due to
Water Scarcity/related
disease…. Concrete is next to
Water in Consumption….
Nano Addition decreases
water Demand

4. BEFORE NANO-TECHNOLOGY AFTER NANO-TECHNOLOGY

5. Admixtures+
Nano

6. FRESH PROPERTIES HARDENED PROPERTIES

7. SOURCES OF
NANO MATERIALS
1.NANO SILICA[Mean Dia~35 nm]-
1st nano-product that replaced micro-silica
No Admixtures/Plasticizers required
2.CARBON NANOTUBES[Mean Dia=20-40nm]-
Crack controlling
SHM
3. NANO TITANIUM DI-OXIDE[Mean Dia=30-40nm]-
Self cleaning properties

9.  Improves the materials’ bulk properties.
 To obtain thinner final elements(more
Floor Space) and quicker setting time.
 Brings down Weight & Cost Effective.
 Allows For Rationalization Of Design.
 Lowered levels of environmental
contamination.
 Improved Carbon Ratings.
Conventional
Glass
Self
Cleaning
Glass

10. SCOPE OF WORK:-
The AIM is to Investigate the
INFLUENCES of Nano-
Additions on Ordinary Cement
& BLENDED Cements
Testing of Nano-materials (nS,
CNT & n-TiO2) for7, 28,90,180 &
365 days compressive strength
for OPC/PPC/PSC
Mortar[Cement:Sand=1:3] at
OPTIMIZED additions

11. % Nano
additions in
OPCement
7 Days
Strength
(% incr.)
28 Days
Strength
(% incr.)
90 Days
Strength
(% incr.)
180 Days
Strength
(% incr.)
365 Days
Strength
(% incr.)
0% nS
21.08 MPa
(--)
31.89MPa
(--)
31.20MPa
(--)
30.01MPa
(--)
30.01MPa
(---)
0.5% nS
23.85MPa
(13.14%)
35.1MPa
(11.35%)
41.30MPa
(32.37%)
27.47MPa
(-9.24%)
26.76MPa
(-4.29%)
0.75% nS
27.73MPa
(31.54%)
42.27MPa
(32.55%)
49.85MPa
(59.78%)
32.52MPa
(8.36%)
31.5MPa
(4.96%)
1.0% nS
25.07MPa
(18.93%)
37.36MPa
(17.15%)
42.98MPa
(37.76%)
33.68MPa
(12.23%)
32.41MPa
(8.0%)
1.25% nS
23.17MPa
(9.91%)
30.85MPa
(-3.26%)
39.45MPa
(26.44%)
35.24MPa
(17.43%)
31.3MPa
(4.29%)
1.50% nS 23.81MPa
(12.95%)
37.79MPa
(18.50%)
33.42MPa
(7.12%)
31.23MPa
(4.07%)
29.12MPa
(-2.96%)

12. % Nano
additions in
PPC
7 Days
Strength
(% incr.)
28 Days
Strength
(% incr.)
90 Days
Strength
(% incr.)
180 Days
Strength
(% incr.)
365 Days
Strength
(% incr.)
0% nS
11.36 MPa
(--)
22.44 MPa
(--)
25.96 MPa
(--)
27.08 MPa
(--)
23.52MPa
(---)
0.5% nS
8.93MPa
(-21.39%)
27.16 MPa
(21.03%)
22.45 MPa
(-13.52%)
26.11MPa
(-3.58%)
21.26MPa
(9.61%)
0.75% nS
23.66MPa
(108.27%)
27.45 MPa
(22.32%)
33.17 MPa
(27.77%)
27.0 MPa
(-0.30%)
35.54MPa
(51.11%)
1.0% nS
25.07MPa
(18.93%)
37.36MPa
(17.15%)
42.98MPa
(37.76%)
33.68MPa
(12.23%)
32.41MPa
(8.0%)
1.25% nS
23.17MPa
(9.91%)
30.85MPa
(-3.26%)
39.45MPa
(26.44%)
35.24MPa
(17.43%)
31.3MPa
(4.29%)
1.50% nS 23.81MPa
(12.95%)
37.79MPa
(18.50%)
33.42MPa
(7.12%)
31.23MPa
(4.07%)
29.12MPa
(-2.96%)

13. % Nano
additions in
PSC
7 Days
Strength
(% incr.)
28 Days
Strength
(% incr.)
90 Days
Strength
(% incr.)
180 Days
Strength
(% incr.)
365 Days
Strength
(% incr.)
0% nS
22.89 MPa
(--)
28.93 MPa
(--)
26.79 MPa
(--)
19.95 MPa
(--)
32.65MPa
(---)
0.5% nS
22.81MPa
(-0.35%)
30.56MPa
(18.93%)
26.31MPa
(5.63%)
24.63MPa
(23.46%)
41.24 MPa
(26.31%)
0.75% nS
19.45 MPa
(-15.02%)
27.56 MPa
(-4.73%)
22.89 MPa
(14.55%)
20.63MPa
(3.41%)
23.47MPa
(-28.11%)
1.0% nS
21.54MPa
(-5.89%)
29.88 MPa
(3.28%)
36.22 MPa
(35.20%)
23.48MPa
(17.69%)
18.11MPa
(-44.53%)
1.25% nS
19.62 MPa
(-14.28%)
18.62 MPa
(-39.63%)
22.84 MPa
(-14.74%)
14.74 MPa
(-26.12%)
23.81MPa
(-27.08%)
1.50% nS 14.39MPa
(-37.13%)
14.80 MPa
(-48.83%)
18.74 MPa
(-42.96%)
14.86 MPa
(-25.51%)
16.84 MPa
(-48.42%)

14. % Nano
additions in
OPCement
7 Days
Compressiv
e Str
(% incr.)
28 Days
Compressive
Str
(% incr.)
90 Days
Compressive
Str
(% incr.)
180 Days
Compressive
Str
(% incr.)
365 Days
Strength
(% incr.)
0%
CNT/TiO2
21.08MPa
(--)
31.89MPa
(--)
31.20MPa
(--)
30.01MPa
(--)
30.01MPa
(--)
0.02%CNT 17.69MPa
(-16.08%)
43.75MPa
(37.19%)
35.59MPa
(14.07%)
30.89MPa
(0%)
28.53MPa
(-4.93%)
0.05%CNT
27.19MPa
(28.98%)
34.88MPa
(9.37%)
31.85MPa
(2.08%)
38.55MPa
(3%)
41.69MPa
(38.92%)
0.1%CNT 21.69MPa
(2.89%)
24.83MPa
(-22.14%)
31.50MPa
(0.96%)
30.16MPa
(0%)
50.78MPa
(69.21%)
1%TiO2
25.24MPa
(19.73%)
36.71MPa
(12.59%)
35.92MPa
(15.13%)
33.42MPa
(11.36%)
41.16MPa
(37.15%)
2.5%TiO2
20.34MPa
(-3.51%)
34.97MPa
(9.58%)
37.80MPa
(21.15%)
40.95MPa
(36.45%)
28.16MPa
(-6.16%)

15. DISCUSSIONS &
CONCLUSIONS
Nano-Additions never resulted in any
appreciable change in PHYSICAL
CHARACTERISTICS of Cement –
COLOUR,SHAPE,SIZE,WEIGHT,DENSITY
Nano-Additions in PCE for
CNT/TiO2 REDUCED THE SETTING
TIME[From 3 Days to 1.5 Day]
OPTIMIZATIONS for Nano
Materials in Ordinary Cement
Mortar -nS, CNT & TiO2 are
0.75%,0.02% & 1% w.r.to Cement
weight at 28 Days
 Results indicate that for OPC,
slight increase of Ns/CNT dose
from the optimized one gives an
overall increase in strength in
Long Term
For PPC & PSC optimizations are
0.75% nS & 0.5% nS which remains
fixed for both Short & Long Terms
Further research on MICRO
STRUCTURAL studies are necessary
for Characterization of Nano
Materials -XRD,SEM-EDS,TEM,AFM
in Cement Concrete

16. THANK YOU!
mainakghosal2010@gmail.com
www.ermainakghosal.weebly.com