Survey on Fly Ash Based Geopolymer Concrete (original) (raw)

Properties of Geopolymer Concrete using Fly Ash

2021

This investigation presents the details of development of the process of making fly ash based geopolymer concrete.Therefore present study adopted a rigorous trial and error process in order to develop the geopolymer concrete using fly ash. The focus of the study was to identify the salient parameters that influence the mixture properties and the properties of fly ash-based geopolymer concrete.

A Review on Fly Ash based Geopolymer Concrete

2017

The invention of Geo-polymers has paved the way for construction industry to use Fly ash based Geo-Polymer Concrete with 100 % replacement of cement. Substantial experimental research has been conducted ever since on Geo-Polymer concrete which can prove to the sustainable construction material of the future. This paper reviews various materials used for manufacturing this concrete such as alkaline liquids, fly ash, aggregates and super-plasticizers. The experimental investigations conducted by various researchers on the aspects such as mix design, curing etc. and their impact on properties of Geo-polymer concrete has also been reported. Finally, concluding remarks and suggestions regarding the applications of Geo-polymer concrete are delineated at the end.

Influence of aggregate content on the behavior of fly ash based geopolymer concrete

Concrete made using geopolymer technology is environmental friendly and could be considered as part of the sustainable development. Even though aggregate constitutes major volume in geopolymer concrete, only limited study related to this parameter has been reported. This paper presents the summary of study carried out to understand the influence of aggregate content on the engineering properties of geopolymer concrete. Influence of other parameters on engineering properties of geopolymer concrete such as curing temperature, period of curing, ratio of sodium silicate to sodium hydroxide, ratio of alkali to fly ash and molarity of sodium hydroxide are also discussed in this paper. Based on the study carried out, it could be concluded that a geopolymer concrete with proper proportioning of total aggregate content and ratio of fine aggregate to total aggregate, along with the optimum values of other parameters, can have better engineering properties than the corresponding properties of ordinary cement concrete.

A Review: To Investigate the Properties of Geopolymer Concrete with Fly Ash in Place of Cement

International Journal for Research in Applied Science and Engineering Technology (IJRASET), 2022

A novel type of concrete called geopolymer concrete is created by reacting sodium silicate containing minerals with sodium aluminate and a caustic activator, such as fly ash or slag from the production of iron and metal. It can serve as a viable replacement for regular portland cement. In addition to having outstanding mechanical qualities, geopolymer concrete also possesses a number of extremely high-end qualities, including corrosion and fire resistance. The majority of industrial solid waste and bottom ash from waste incineration are stacked up at random, which not only uses up land resources but also negatively affects the ecosystem. They can be recycled and utilised as raw materials to make geopolymer concrete. Geopolymer concrete has the ability to absorb pollutants like heavy metals and other radioactive chemicals, so that its stability, elasticity, and thermal qualities are unaffected. However, geopolymer concrete's use goes beyond that because of its superior qualities. The geopolymerization of concrete, the origin of the raw materials, the numerous categories of activators, the development processes, and the diverse applications of geopolymer concrete in various fields are all covered in this paper. In this section, the factors that affect the mechanical and abrasion resistance of geopolymer concrete. In order to establish a hypothesis that will be used to develop geopolymer concrete for future development, the disadvantages and application quantification of geopolymer concrete, as well as its mix design, will be summarised in this paper.

Feasibility Study on Fly Ash based Geopolymer Concrete

Concrete is the most widely used building material in the construction of infrastructures such as buildings, highways, dams, and many other facilities. The increasing of worldwide production of ordinary Portland cement to meet infrastructure developments indicates that concrete will continue to be a chosen as the most common material of construction in the future. The production of cement consumes a lot of energy and increase CO 2 emission to the atmosphere. Another alternative to make environment friendly concrete is the development of geopolymer which is an inorganic alumina-silicate polymer, synthesized from materials of geological origin or by product materials such as fly ash which is rich in silicon and aluminum. In this study, 2 mixes were produced to evaluate the effect of key parameters on the mechanical properties of concrete and its behavior. For curing of specimens ambient curing (at room temperature) and oven curing at a temperature of 75ᵒC have been used. Geopolymer concrete gives better results in workability of concrete as compare to conventional concrete. Test results reveal that fly ash based geopolymer concrete gives better results of compressive strength than ordinary Portland cement. As the fluid to fly ash ratio increases the compressive strength decreases. For oven drying curing increase in compressive strength is more than ambient curing at room temperature as compare to conventional concrete.

Experimental Study on Geopolymer Concrete with Replacement of Fly ASH and GGBS

IJRASET, 2021

In Twenty First century infrastructure development concrete has come out as the dominant construction material due to its longevity and strength. The main component used in the concrete preparation is ordinary Portland cement whose production release large amount of carbon dioxide into atmosphere that causes greenhouse effects. Various surveys suggest industries around the globe contribute about 6%of carbon dioxide that is releasing into the atmosphere. In spite of this major environmental concern, we cannot reduce the use of ordinary Portland cement for making concrete. In this study concrete is prepared by using geopolymer technology i.e. by mixing fly ash, ground granulated blast furnace slag, sodium silicates, sodium hydroxide are mixed. Specimen curing is done at regular intervals of 3 days, 7days, and 28days. Compressive, split and flexural strength obtained after 3 days, 7 days and 28 days. Acid, Sulphate test and permeability test done for 14 and 28 days of curing the specimen. More strength occurred at mix 5 of fly ash 30% and GGBS 70%.

A study on the strength development of geopolymer concrete using fly ash

International Journal of Engineering & Technology, 2017

Cement consumption is increasing day by day due to the tremendous development in the infrastructure facilities. The production of one ton of cement emits approximately one ton of carbon dioxide to the atmosphere. In order to reduce the use of cement a new-generation concrete has been developed such as geopolymer concrete (GPC).Geopolymer Geopolymer is a new material which has the potential to replace ordinary Portland cement. It is an inorganic material synthesized by alkali activation of amorphous aluminosilicates at ambient or slightly increased temperatures having an amorphous to semi-crystalline polymeric structure. In this study, low calcium flyash from Tuticorin was used to produce geopolymer concrete. The geopolymer was synthesized with sodium silicate and sodium hydroxide solutions. The sodium hydroxide pellets was dissolved in the distilled water to make free from mixing water contaminants. The ratio of sodium silicate and sodium hydroxide ratio was kept as 2.5. The concent...

MIX Design of Fly-Ash Based Geopolymer Concrete

International journal of scientific and research publications, 2016

Geopolymer is a new development in the world of concrete in which cement is totally replaced by pozzoloanic materials like fly ash and activated by highly alkaline solutions to act as a binder in the concrete mix. For the selection of suitable ingredients of geopolymer concrete to achieve desire strength at required workability, an experimental investigation has been carried out for the gradation of geopolymer concrete and a mix design procedure is proposed on the basis of quantity and fineness of fly ash, quantity of water, grading of fine aggregate, fine to total aggregate ratio. Sodium silicate solution with Na2O = 16.37 %, SiO2 = 34.35 % and H2O = 49.28 % and sodium hydroxide solution having 13M , 10M 15M concentration were obtained throughout the experiment. Water-to-geopolymer binder ratio of 0.40, alkaline solution-to-fly ash ratio of 0.35 and sodium silicate-to-sodium hydroxide ratio of 2.0 by mass were fixed on the basis of workability and cube compressive strength. Workabi...

Studies on fly ash-based geopolymer concrete

… , green chemistry and …, 2005

This paper presents test data on fly ash-based geopolymer concrete. The paper covers the material and the mixture proportions, the manufacturing process, the fresh and hardened state characteristics, the influence of various parameters on the fresh and hardened state concrete, the utilisation of the material in structural members, and the long-term behaviour. Cet article présente les résultats des essais sur le béton géopolymère à base de cendres volantes, réalisés à Curtin University, Perth, Australie. Il couvre le matériau en soit, les proportions des mélange, le processus de fabrication, les caractéristiques du béton frais et durci, l'influence de divers paramètres sur le béton frais et durci, l'utilisation du matériau dans les pièces de structure, et son comportement à long terme.