2. Introduction
Geopolymer concrete is an innovative and eco-friendly
construction material.
It is used as alternative material for cement concrete.
In geopolymer concrete cement is not used as a
binding material.
In spite of cement we use flyash,GGBS as a binders.
3. What’s wrong with cement
Portland cement is a major contributor to CO2
emission.
for example,
Production of one ton of OPC
emits one ton of CO2.
These will leads to global warming.
4. Why geopolymer concrete
Geopolymer concrete has potential to reduce CO2
emission.
It use waste products such as flyash,GGBS as binders.
Setting mechanism
is depends on
polymerization.
Produce more
durable
infrastructure.
8. Process
Aggregates and fly ash are mixed with proper
intimation.
And then alkaline activator solution is added to
dissolve Si and Al atoms in source materials.
By this process aggregates and fly ash get bonded.
And then finally we get geopolymer concrete.
9. Properties
Non toxic.
Sets at room temperature.
High compressive strength.
High bonding strength.
Chemical resistance.
Highly resistance to heat.
10. Advantages
Reduces CO2 emission.
Usage of waste products.
Durability is good.
Fire proof.
Corrosion resistance.
Economically sustainable.
11. Disadvantages
It requires special handling.
Process is faster.
It is sensitive.
How over come the disadvantages
Reduce the carelessness.
Give extra effect.
Proper intimation
12. OPC vs GPC
The compressive strength of GPC is 1.5 times more
than that of OPC.
Weight of GPC is half of the weight of OPC.
Bonding strength of GPC is 4 times than that of OPC.