GeoPolymer concrete

Name : Prithvi raj karreddula

ID: 1052988

What is Geo Polymer concrete ?• This is the alternative method of OPC

(Ordinary Portland Cement).• It has the potential to reduce the CO2

emission.• This product is more durable than OPC

designed structures.• Protects the aquifers and surface bodies of

fresh water via elimination of fly ash disposal site.

• It is very cheap when compare to OPC.

Goals of Geopolymer concrete

•It helps in reducing the 80% of CO2 emission to the atmosphere which is caused by OPC method.

•Using fly ash as a source material and cost efficient and also eco friendly.

•Reducing the significant amount of Greenhouse gases.

CONTENTS•Abstract•Method of Testing•Testing on materials •Mixing •Casting •Curing •Results •Conclusion

ABSTRACT• Sorptivity is a term that is defined  as a

measure of the capacity of the medium to absorb or desorb liquid by capillarity

• This term was introduced by John Philip in 1957

• Sorptivity, which is an index of moisture transport into unsaturated concrete specimens, has been recognized as an important index of concrete durability, because the test method used for the determination of sorptivity, reflects the way that the water and other injurious agents will be penetrated into the concrete and it is an especially good measure.

Method of Testing:•Sorptivity test for Geopolymer Concrete

and Normal Concrete is to be conducted on the cube specimens of size 150x150x150mm

Fig: Schematic diag. of Sorptivity test

Test on materials •A number of tests have been performed

on cement, fine aggregate and coarse aggregates.

•The physical properties of materials are been done by finding the specific gravity, fineness and normal consistency.

Coarse aggregate (sand) Fine aggregate

Cement

Mixing •After collecting the required properties i.e

cement, fine and coarse aggregates, super plasticizer and water is required for normal preparation of concrete.

•Fly ash, fine and coarse aggregates, sodium hydroxide, sodium silicate, super plasticizer and extra water is needed for Geopolymer concrete.

•They are mixed in a concrete mixer continuously for a time period of 3 minutes.

Casting •The total specimens of OPC and GPC are

casted by using slump cone test.

Curing of OPC and GPC •The conventional concrete cubes are

placed in water in curing tank for total period of 28 days

•The geopolymer concrete cubes are placed in the hot air over for heat curing then placed for ambient curing for the desired period.

Testing •The concrete specimens are tested for

compressive strength after curing.

Results of Geopolymer •Geopolymer has less heat of hydration.

•There is no need of water as a bonding agent.

•It eliminates the need of cement in which cement emits high rate of CO2 and GHG to the environment.

Conclusion•The Geopolymer concrete performs better

compare to OPC concrete.•This new approach of GPC can prove that it

is satisfied for practical purposes of adopting the alternative method for creating the better durable of any structure.

• Reducing the problem of CO2 and greenhouse gases which are effecting the global warming.