Keywords : Geopolymer concrete


A Scientometric Review of Na2SiO3/NaOH Versus SiO2/Na2O is above 2.85:1 Alkaline solution Activated Geopolymer Concrete

Jagandas S.; Mallikarjuna Rao G; Hitesh Kumar M; Srujan Kumar T

International Research Journal on Advanced Science Hub, 2022, Volume 4, Issue 06, Pages 175-179
DOI: 10.47392/irjash.2022.042

 

The term geopolymer is a sustainable binder refers to the study of waste mate- rials containing silicon (Si) and aluminum (Al), which create an alternative binder formed by a complex repeated chain by geopolymerization process. Hellacious materials alternation is mandatory to see the construction as a beautiful infrastructure as there are limited natural resources to produce qual- ity concrete. Alternative binder and aggregates created by using industrial waste should be used to reduce the disadvantages of conventional concrete. The Na2SiO3 / NaOH ratio activated geopolymer concrete has been well doc- umented by researchers. The ratio of these solutions to the field geopolymer concrete production is not suitable for structural geopolymer concrete because it is not possible to provide a temperature greater than 60 degree centrigrade in the field. The Na2SiO3 / NaOH ratio should be mixed 24 hours before airing the samples. Researchers have used a single alkaline solution simply instead of water when mixing concrete. In this review paper clearly compared and ana- lyzed difference between the Na2SiO3/NaOH activated geopolymer concrete versus neutral grade sodium silicate (NGSS) laboratory-based field construc- tion geopolymer concrete. NGSS is a neutral grade of SiO2: Na2O. This solu- tion is the only single neutral grade solution with 2.92 silica modulus, produced directly by the company to create the geopolymer.

Study on Strength Characteristics of Geopolymer Concrete using M-Sand

Selvamuthukumar S; Kumaravel S

International Research Journal on Advanced Science Hub, 2020, Volume 2, Issue Special Issue ICAMET 10S, Pages 76-80
DOI: 10.47392/irjash.2020.202

A major environmental issue in the world is pollution in cement production. Geopolymer concrete also in construction industry is an alternate cement material as well as an eco-friendly material. Using fly ash, ground granulated blast furnace slag as base materials and sodium hydroxide and sodium silicate combination as alkaline activators, the geopolymer concrete is prepared. The sand is an important part of concrete; it is mainly procured from natural sources. Environmental and economy aspects are better obtained, if locally available sources can be used. Manufactured sand substitutes the fine aggregate in the concrete in several percentages as the sand is well graded and gives greater concrete power.  In the present analysis, the strength of concrete with manufactured sand is studied in proportions of different percentage as a replacement for natural sand.