Sustainable concrete uses less energy and produces fewer carbon emissions than regular concrete. It incorporates waste and recycled materials like fly ash and slag to replace portions of cement. Using these supplementary cementitious materials can increase sustainability by reducing embodied energy and carbon in the concrete. Sustainable strategies also include minimizing water use, using local and recycled aggregates, and designing for durability to lessen environmental impacts over the concrete's lifetime. The presentation outlined various approaches to sustainable concrete and its advantages in promoting greener construction.

1. SUSTAINABLE CONCRETE
A PON. RATHNAVEL PRESENTATION

2. GOOD MORNING
WHAT YOU DO TODAY CAN CHANGE YOUR TOMORROW!

3. INCLUDES
• Introduction to Concrete
• Introduction to Sustainability
• Understanding Sustainable Concrete
• 6 Sixes & Sustainable Concrete

4. INTRODUCTION TO CONCRETE
21
Essential Things
a Civil Engineer should know
about concrete

5. TAMIL
• The tamil word for concrete is
_____________

6. LATIN
• The word concrete is derived from Latin
word conscretus which means
_____________

7. MIXTURE
• Concrete is a composite construction
material made up of _____________,
___________, ___________ and water.
It should not be confused with mortar
which is made up of __________,
____________ and water.

8. SINCE 6500 BC
• The material used in concrete in place of
cement before 1800s was
_____________

9. LIFE CYCLE
• The stages in concrete are
Proc_____________
Mi_______________
Tra______________
Pla______________
Com_____________
Cur______________
Fin______________
Har______________

10. SD
• The two major properties of concrete due
to which it is widely used are
s_____________ and d_____________

11. ACCELERATORS, RETARDERS, ENTRAINERS
• Apart from cement, coarse aggregate,
fine aggregate and water, sometimes
_____________ are added to concrete
to give it certain characteristics.
The ___________ are broadly classified
into two types namely m__________ and
c____________ admixtures.

12. NO TENSION BRO
• Concrete is normally strong in
___________ and weak in
_____________
• Therefore to support ___________ of
concrete, steel is added to concrete and
this process is called ____________.

13. TYPES
• Ordinary/Normal Concrete is made up of
_______________________ while
Reinforced concrete is made up of
_______________________________

14. TYPES
• Some major types of concrete are
High S_____________ Concrete
High P_____________ Concrete
Light ______________ Concrete
Pre _____________ Concrete
Self _______________ Concrete
Sp____________ Concrete
Su_____________ /Green Concrete
Rea______________ Concrete

15. MIXING
• A concrete mix is designed to produce
concrete of low cost, easy placement
and high strength & durability.
• The ratio of each material in concrete is
important and affects the mix. This
process of fixing proportion of each
material is called _________________.
The proportions of each material are
based on __________ and not on
________.

16. M IS THE WORD
• The mix proportioning of concrete leads
to the grade of concrete as
• In the grade, the number after letter M
stands for ________________
Grade C FA CA
M5 1 5 10
M10 1 3 6
M15 1 2 4
M20 1 1.5 3
M25 1 1 2

17. W/C
• As the Water to _________ ratio
increases, the strength and durability of
hardened concrete decreases.
• Therefore to increase the strength and
durability of concrete, the Water-Cement
ratio should be ___________
• The suggested W/C Ratio for our
conditions is _____

18. CODE BOOK
• The important IS code books relating to
concrete are
S.
No.
Code Book Description
1 IS 456 – 2000 Code of practice for plain and
reinforced concrete
2 IS 1343 -1980 Code of practice for prestressed
concrete
3 IS 4926 – 2003 Code of practice for readymixed
concrete
4 IS 6461 – 1973 Glossary of terms relating to cement
concrete
5 IS 10262 –
2009
Guidelines for Concrete Mix
Proportioning
6 IS 13311 –
1992
Non Destructive Testing of Concrete

19. STAGES
• Concrete can be divided into two distinct
stages namely _____________ concrete
and _____________ concrete.

20. SIX FRESH PROs
• The normal properties of a fresh
concrete are
Set_______________
Work______________
Hyd_______________
Air _______________
Ble________________
Seg________________

21. SIX HARD PROs
• The normal properties of a hardened
concrete are
Str_______________
Mod______________
Cre_______________
Shr _______________
Per________________
Atta________________
The properties other than strength are
called _____________

22. TESTING TIMES
• The normal tests done in concrete are
For determining ________
Slump Cone Test
Compaction Factor Test
For determining __________
Compression Test
Split Tensile Test

23. TESTING TIMES
• The common NDT done on concrete are
Ultrasonic __________
Rebound ___________

24. CONSUME
• The estimated annual consumption of
concrete worldwide every year is
____________ m3

25. DAY
• The Indian Concrete Institute observes
_____________ as National Concrete
Day

26. INTRODUCTION TO
SUSTAINABLE DEVELOPMENT
We do not inherit the earth from our ancestors
We borrow it from our children

27. SUSTAINABLE DEVELOPMENT
• Development that meets the needs of the
present without compromising the ability
of future to meet their own needs

28. SUSTAINABLE DEVELOPMENT
• Development without damage to
Environment

29. SUSTAINABLE DEVELOPMENT
• S ociety
• E nvironment
• E conomy

30. SUSTAINABLE DEVELOPMENT
• 1972, Stockholm
• 1987, Brundtland Commission
• 1992, RIO – UNCED
• 2002, Johanessburg
• 2012, RIO - UNCSD

31. SUSTAINABLE DEVELOPMENT
• The Tamil Word for Sustainable
Development is நிலையான
அபிவிருத்தி or நிலையான
வளர்ச்சி

32. SUSTAINABLE DEVELOPMENT
• One way to achieve Sustainable
Development is to adopt Green Buildings
in place of common buildings
• Green Buildings are buildings that
use energy efficient materials
use materials that least affect environment
limit impact on outdoor environment
provide healthy indoor environment

33. SUSTAINABLE DEVELOPMENT
• One way to achieve Sustainable
Development is to adopt Green Buildings
in place of common buildings
• Green Buildings are buildings that
use energy efficient materials
use materials that least affect environment
limit impact on outdoor environment
provide healthy indoor environment

34. SUSTAINABLE DEVELOPMENT
• Green Buildings are designed,
standardized, developed and certified
through international LEED(Leadership
in Energy and Environmental Design)
• LEED is a green building design and
development certification program to
measure:
 Sustainability
 Waste efficiency
 Energy and atmosphere
 Materials and resources
 Innovation and design

35. SUSTAINABLE DEVELOPMENT
• Construction Industry is requested to
adopt sustainable construction to ensure
sustainable development
• Sustainable constructions are those
constructions which are concerned with
the minimizing of environmental impact,
while optimizing it economically
• Since most of our constructions deal with
concrete, we need sustainable concrete
for sustainable construction

36. UNDERSTANDING
SUSTAINABLE CONCRETE
Concrete with least impact to environment

37. SUSTAINABLE CONCRETE
• Sustainable Concrete is defined as
concrete that uses less energy in its
production & produces less carbon
dioxide than normal concrete.
• It is also known as green concrete or eco
friendly concrete

38. SUSTAINABLE CONCRETE
• Sustainable Concrete strategies are
achieved following the Life Cycle
Assessment (LCA) approach also known
as Cradle to Grave approach
Production
Maintenance Demolition Disposal
ConstructionMaterials

39. SUSTAINABLE CONCRETE
• There are many strategies to achieve
green concrete namely
• Use of eco friendly cement
• Effective use of supplementary
cementitious material
• Increased dependence on recycled
materials
• Reuse of wash water

40. Materials for SUSTAINABLE Concrete
Fly Ash, Metakaolin, Silica Fume, Fly Ash, Slag, Calcined Shale

41. Materials for SUSTAINABLE Concrete
Fresh local aggregate Recycled Demolition Waste Aggregate
Recycled Concrete Material (RCM) Blast Furnace Slag (BFS)

42. Materials for SUSTAINABLE Concrete
Fly Ash
Blast Furnace Slag (BFS)
Manufactured Sand For Concrete Recycled Glass Aggregate

43. SUSTAINABLE CONCRETE
• Other strategies to achieve sustainable
concrete are
 Rainwater Harvesting
 Reduction in Water Use
 Heat Island
 Ready Mixed vs Site Mixed
 Pre Cast vs Cast in Situ
 Normal vs Fibre Reinforcement

44. SUSTAINABLE CONCRETE
• Some achievements by sustainable
concrete are
• 20% increase in use of waste materials
• 25% reduction in weight of concrete
• 30% reduction in CO2 emissions
• 40% reduction in repair costs

45. SUSTAINABLE CONCRETE
• It offers the following advantages when
compared to normal concrete
• Better Workability
• Reduced Creep & Shrinkage
• Good Thermal & Fire Resistance
• Less Heat of Hydration

46. SUSTAINABLE CONCRETE
• It offers the following disadvantages
when compared to normal concrete
• Split Tensile Strength is Less
• Flexural Strength is Less
• No big change in Compressive Strength
• Less Life Time (Durability)

47. WHAT IS YOUR UNDERSTANDING
SUSTAINABLE CONCRETE?
Selecting Six of you to Share Six Learnings of the Session

48. THANK YOU
THE GREATEST THREAT TO OUR EARTH
IS THAT SOMEONE ELSE WILL SAVE IT