Fly Ash
Fly ash is the finely divided residue that results from the
combustion of pulverized coal and is transported from the combustion chamber by
exhaust gases. It is produced by coal-fired electric and steam generating
plants.
Types of Fly
Ash
There are two types of fly ash
Class C Fly Ash : It is produced from the combustion younger
lignite or subbituminous coal.
Class F Fly Ash : It is produced from the burning of harder
bituminous coal and older anthracite.
Application of
Fly Ash
·
Fly Ash is a prime material in many cement
products like pouring concrete, Concrete block and brick.
·
Mainly it is used in Portland cement concrete
pavement or PCC pavement.
·
By using fly ash in PCC road construction
projects, it gives remarkable economic benefits as it is a great deal of
concrete.
·
It is also used in embankment construction.
·
It is used in roller compacted concrete dams.
·
It is used in the making of fly ash bricks.
·
In the geopolymer it is used as component.
·
It is used as a soil stabilize material.
·
It is also used in a mine fill.
·
It is used in high performance concrete.
·
It is used in cold weather concreting.
Advantages of
using Fly Ash
·
It is Cost effective substitute for Portland
cement.
·
It produce dense concrete/brick with smooth
surface and
·
It has a great workability and it reduces the
problem of cracks, permeability, bleeding etc.
·
Fly ash is a by product and fly ash concrete
reduces CO2 hence it is a environment friendly product.
·
It has a good resistance in cold weather.
·
It is a non-shrink material.
·
It also reduces heat of hydration.
Disadvantages of
Fly Ash
·
It causes to gain slower strength.
·
It
can not be used in mass concreting because it is much sensitive to high
temperature and gives lower strength.
·
This
reduce water demand so to gain necessary workability of concrete it is must to
use plasticizers/Superplasticizer and air entraining admixture.
--------------------------------------------------------------------------------------------------------
Like us on Facebook :- https://www.facebook.com/SanghiCement
Follow us on Linkedin :- https://www.linkedin.com/company/sanghi-industries-ltd
Subscribe us on Youtube :- https://www.youtube.com/SanghiIndustries-Ltd
For any Inquiry visit :- http://www.sanghicement.com/inquiry-form
Contact us on Whatsapp :- +91-79-26838000
--------------------------------------------------------------------------------------------------------
Blog written by
Shruti Doshi
Technical Officer – Sanghi Cement & Blogger
Blog Managed by
Nirav Pandya
Digital Marketing Officer – Sanghi Cement
Comments
Post a Comment