a carbon dioxide negative cement ferrock cement

1. THE CO2 NEGATIVE
CEMENT FERROCK
OVERVIEW
CO2
EMISSION

2. CEMENT
 It’s been called the foundation of modern
civilization. Portland cement, the generic
name, is the glue that allows concrete to
harden. And concrete is everywhere, in
highways, bridges, sidewalks, buildings of all
sizes, and much more.
 Four billion tons of cement is manufactured
each year worldwide, a half-ton for every
person on Earth.

4. NEED OF SUBSTITUTE FOR
CEMENT
 Climate change has prompted scientists to
search for new ways to reduce greenhouse
gases in all kinds of fields.
 alternative to the unlikely cause of fully 7
percent of the world’s carbon dioxide
emissions.
 For every one ton of cement produced
approximately .8 ton of co2 is released.
 It’s incredibly polluting. Problem is, we can’t
really get away from cement, considering we
need it to build a whole lot of structures.

5. CO2 EMISSION CHART

6. INRODUCTION TO FERROCK
 Created by David Stone back when was a
PhD student,
 A key ingredient is iron, something he gets
from steel mill. discovered that there was this
material called steel dust that is not recycled.
So, it typically goes straight to the landfill.

7. PROPERTIES OF FERROCK
 Stone’s material, called Ferrock for the iron.
 When you talk to anybody about concrete, the
first thing that they will ask you is, what’s the
strength?
 Compressive strength tests show the pure
paste (without aggregate) to be stronger than
comparable samples of Portland cement
 Flexural strength tests show the pure paste to
be four times stronger than comparable
samples of Portland cement.

8. PROPERTIES OF FERROCK
contd..
 Analysis (atomic absorption spectroscopy)
shows that fully cured samples contain
between 8 and 11% captured CO2 by weight.
Ferrock is therefore "carbon negative" unlike
Portland cement, which during manufacture is
a major source of CO2 and other air pollutants.

9. OKLAHOMA CITY BOMBING

10. Professor Narayanan Neithalath, a civil
engineer who develops sustainable
materials, is testing Ferrock.
 According to his study -:
 What happened in Oklahoma City bombing(April
19, 1995) was the explosion demolished all the
columns of the building and the building crashed
because of the weight of it and the columns not
being able to support them.
 But if I have a blast-resistant material, so
something made out of this material, what you will
have is the — the columns will still become
weaker. But it won’t collapse just like that, and you
will save loss of lives and loss of property.

11. CONCLUSION
It’s a golden opportunity for
countries like INDIA and CHINA as
being the global leaders in cement
production to move a step forward
towards a greener and sustainable
future by adopting FERROCK as
the substitute to traditional
cement..