DISCUSSION ON GREEN CONCRETE -Request to all members do participate

[Narendra]

no idea guru

Okay sir ...

 

[K Kiran]

I will suggest you can opt for blending of two or more cementitious materials(mineral admixture) as per ASTM C 1697 (2016) to overcome the below limitations
1. Fly ash reduces the early strength of the concrete
2. Silica fume/ GGBS may produce a sticky mix which it is difficult to be pumped when u compare with control mix

 

[Narendra]

I will suggest you can opt for blending of two or more cementitious materials(mineral admixture) as per ASTM C 1697 (2016) to overcome the below limitations
1. Fly ash reduces the early strength of the concrete
2. Silica fume/ GGBS may produce a sticky mix which it is difficult to be pumped when u compare with control mix

Yes sir
I have tried with Flyash - GGBS, Fly ash - cement and Flyash alone(Called Geopolymer Concrete).

 

[Narendra]

I think Geopolymer Concrete is not suitable for insitu work.
What is your view?

 

[K Kiran]

yeah

 

[Narendra]

Its is Suitable for precast members only.
Because of its curing method.

 

[Pravin Wakhure]

Is it implemented anywhere in India?
if no why?[/

I think no ...
As per my point of view The reason is that
Geopolymer concrete is the concept of concrete without cement .
If we are trying to replacing cement 100 percent by using some mineral admixtures like flyash , ggbs which not accept from our builders or engineers .
Because presently in India RMC industry replacing cement up to 50 to 60 percent by using ggbs which does accept from lot of construction companys .

 

[Narendra]

Sir , What if tomorrow RMC start producing Geopolymer Concrete ?