Ultrafine GGBS Research Papers - Academia.edu (original) (raw)

As a construction material, most commonly used material all over the world is concrete which is produced by Ordinary Portland cement and aggregates mixed with water. OPC is the most widely used binder material in concrete. The amount of... more

As a construction material, most commonly used material all over the world is concrete which is produced by Ordinary
Portland cement and aggregates mixed with water. OPC is the most widely used binder material in concrete. The amount of OPC
approximately present in concrete is 10% - 20% by mass of concrete. Production of OPC is creating the environmental problems
over the decades.
The production of Portland cement worldwide is increasing 9% annually. Portland cement produces almost 1.5 billion tones of
greenhouse gas annually or about 7% of total greenhouse gas emissions to the earth’s atmosphere. Approximately to produce 1
ton of OPC 1 ton of CO2 is released to the environment. Due to this environmental issue, research on alternative binder material
evolved.
It is important to find an alternative material which will liberate less carbon to atmosphere than cement. Industrial waste
products like Fly ash and GGBS can be converted in to concrete through Geopolymer.

In 1978, Davidovits said when alkaline solution mixed with materials such a Fly ash and GGBS binder is obtained through polymerisation reaction. These alternative binder material must contain high amount of Silicon (Si) and Aluminium (Al)... more

In 1978, Davidovits said when alkaline solution mixed with materials such a Fly ash and GGBS binder is obtained
through polymerisation reaction. These alternative binder material must contain high amount of Silicon (Si) and Aluminium
(Al) which in turn react with alkaline liquid. Hence this concrete is named as Geopolymer Concrete (GPC).The commonly used
binder material in GPC are Fly ash, GGBS, Rice husk and Metakoline.
Geopolymers are formed when silicates and aluminates are linked with covalent bonds. Geopolymerisation is a reaction that
synthetically incorporates minerals (geosynthesis) that involves naturally occurring alumina – silicates.

The economic growth of any country is directly dependent on its infrastructure and industries. But Byproducts produced from the industries especially waste materials cause a number of environmental issues however these byproducts can be... more

The economic growth of any country is directly dependent on its infrastructure and industries. But Byproducts produced from the industries especially waste materials cause a number of environmental issues however these byproducts can be efficiently utilized in the construction industry in large quantities if they satisfy the standards specifications as a construction material. Aluminium Refinery Residue (ARR) is fine material, alkaline and complex residue from the aluminium industry, stored with a lot of precaution to avoid environmental contamination. The laboratory/experimental investigation deals with the stabilization of Aluminium Refinery Residue (ARR) with 25% GGBS and alkali solution. A set of standard geotechnical Lab investigations has been done to find its compatibility as one of the materials in road construction. When comparing the strength of stabilised Aluminium Refinery Residue (ARR) cured for 0 days with 7, and 28 days the strength upsurges to 81%, 248 % at standard proctor density and to 160 per cent, and 439 per cent at modified proctor density, respectively. The stabilised Aluminium Refinery Residue (ARR) Specimens pass all 12 sets of the wetting and drying, Freezing and Thawing tests by a weight loss not exceeding 14%, confirms, Aluminium Refinery Residue (ARR) that has been stabilised can be utilised as a road construction material