Geopolymer a potential alternative binder for the sustainable development of concrete without ordinary portland cement nazneen1, sundeep c daggubati2,3 and vemuri lakshminarayana4 1assistant professorcivil engineering, aarupadai veedu institute of technology, chennai, india. Pdf geopolymer concrete gpc has been researched during the past few. There is also evidence that this blend improves the mechanical properties and. Geopolymer materials represent an innovative technology that is generating considerable interest in the construction industry, particularly in light of the ongoing emphasis on sustainability.
Geopolymer was the name given by daidovits in 1978 to materials which are characterized by. The research undertaken at curtin university of technology has included studies on geopolymer concrete mixture proportions, structural behavior, and durability. Geopolymer concrete can be considered as an innovative and alternative material to traditional portland cement concrete. Ccbs, geopolymer binder, cementless concrete, geopolymer concrete, ordinary. Strength prediction of geopolymer concrete using ann ijrte. A case study on fly ash based geopolymer concrete k. The present study investigates the setting and strength properties of geopolymer mixtures containing binary combinations of bentoniteflyash, bentonitecement, bentonitesilicafume and ternary blends of bentoniteflyashlime. The demand for concrete as a construction material is on the rise. Fly ash collected from two different sources was used in making of the geopolymer concrete. The production of ready mixed geopolymer concrete can be achieved which represents the successful implementation of a technically very challenging product. Geopolymer is a type of amorphous aluminohydroxide product that exhibits the ideal properties of rockforming elements, i.
Pdf recycling waste materials in geopolymer concretep. Study on properties of geopolymer self compacting concrete ijrte. View geopolymer concrete research papers on academia. Low calcium fly ash geopolymer concrete possess substantial resistance against sulfate attack. Performance of geopolymer concrete under severe environmental.
Vijaya rangan faculty of engineering and computing, curtin university of technology, australia introduction past research conducted by the authors demonstrates that geopolymer concrete possesses. Geopolymer concrete properties, composition and applications. In the construction industry mainly the production of portland cement will causes the emission of pollutants results in environmental pollution. International journal of recent technology and engineering ijrte.
Minerals free fulltext fly ashbased geopolymer binder. This dissertation addresses this requirement for a standard mix design for geopolymer concrete. Geopolymer is a material resulting from the reaction of a source material that is rich in silica and alumina with alkaline solution. Techbrief briefly describes geopolymer concrete materials and explores some of their strengths, weaknesses, and potential applications. This paper presents the progress made on the research carried out on geopolymer concrete using available local raw materials. Durability is another important aspect of concrete. In geopolymer concrete cement is not used as a binding material.
Dec 12, 2016 introduction geopolymer concrete is an innovative, ecofriendly construction material. Geopolymer binders are used together with aggregates to produce geopolymer concretes which are ideal for. Geopolymer concrete is totally cementing free concrete. Properties of geopolymer concrete with low calcium fly ash. The design provisions mentioned in aci guidelines and other national code for opc concrete are reported to be applicable for geopolymer concrete also. The compressive strength and the workability of geopolymer concrete are influenced by the proportions and properties of the constituent materials that make the geopolymer paste. The aim was to find alternative to ordinary portland cementopc which has attracted a lot of criticisms due to inherent danger associated with its production. Prediction of compressive strength of geopolymer concrete using. Practical recommendations on use of geopolymer concrete technology in practical applications such as precast concrete products and waste encapsulation need to be. For easy working of fresh gpc mixes superplasticizer conplast sp430 was used. What has been missing is the combination of this research in a way that would allow use of geopolymer concrete as a replacement to concrete based on ordinary portland cement. Article pdf available in journal of cleaner production march. Geopolymer concrete shows significant potential to be a material for the future. Research findings revealed that geopolymer concrete exhibited comparative properties to that of opc concrete which has potential to be used in civil engineering applications.
Similarly the geopolymer concrete showed good workability as of the ordinary portland cement concrete. Fly ash, silicafume, or ggbs, along with alkali solution are used as binders. Geopolymer concrete usage is suddenly increasing across the globe. The famine stele and the construction of pyramids with manmade stone. Production of geopolymer binder from coal fly ash to make. In the 1950s, viktor glukovsky, of kiev, ussr, developed concrete materials originally known under the names soil silicate concretes and soil cements, but since the introduction of the geopolymer concept by joseph davidovits, the terminology and definitions of geopolymer have become more diverse and often conflicting. Vairam3 1associate professor, department of civil engineering, sri ramakrishna institute of technology, coimbatore, india. An experimental study on slagfly ashbased geopolymer concrete 15 table 4. Geopolymer concrete sustainable cementless concrete. Performance of geopolymer concrete under severe environmental conditions shankar h. Combine effect of rice husk ash and fly ash on concrete by 30%. This chapter describes the mix design and manufacturing process of geopolymer concrete.
International journal of innovative technology and exploring engineering ijitee. Strength and durability properties of alkali activated slag. In this blend configuration of fly fiery debris based geopolymer. Pdf mix design of fly ash based geopolymer concrete. The manufacture of geopolymer concrete is carried out using the usual concrete technology methods as in the case of opc. Mix proportions for the three slagfly ashbased geopolymer concrete mixtures studied c. Geopolymer concrete also showed very high early strength. In this paper, fly ash is used to produce a geopolymer concrete. The fly ashbased geopolymer paste binds the loose coarse aggregates, fine aggregates and other unreacted materials together to form the geopolymer concrete, with the presence of admixtures. Pdf geopolymer concrete is proved to have high strength, lesser shrinkage, resistance against.
The future study has to be focussed on the effect of fibre addition on the postcrack performance of geopolymer concrete. Slag, geopolymer, compressive strength, ordinary portland cement 1. In this study an attempt was made to analyse the behavior of reinforced geopolymer concrete with manufactured sand and the results were compared with river sand geopolymer concrete beam specimens as well as. Production of geopolymer binder from coal fly ash to make cementless concrete. It is usually associated with portland cement as the main component. International journal of engineering and advanced technology ijeat. Geopolymer based cementitious binder is one of the recent findings in the emerging concrete technology. International journal of engineering trends and technology ijett volume 34.
Tech student, department of civil engineering, k l university, vaddeswaram, guntur. B international journal of civil and structural engineering 399 volume 3 issue 2 2012 bakri, 2011. Efforts have been made to replace the cement based binder in the current fibre reinforced cement concrete with geopolymeric binder resulting in fibre reinforced geopolymer composites frgcs, which is greener than the former one. Fly ash based geopolymer concrete open access journals. Geopolymer concrete is an innovative construction material which shall be produced by the chemical action of inorganic molecules. Graphical abstract conversion of fly ash into geopolymers concrete. Studies revealed that the production of one ton cement releases around one ton of co. One such is the geopolymer concrete and this paper presents an overview of recent advances in geopolymer concrete, a concrete formed by organicinorganic materials using alkaline activation. Strength and durability of fibre reinforced geopolymer concrete. Founded in 1904 and headquartered in farmington hills, michigan, usa, the american concrete institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensusbased standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design. Pdf use of geopolymer concrete for a cleaner and sustainable. This component of geopolymer concrete mixtures can be designed using the tools currently available for portland cement concrete.
Geopolymer concrete gpc is applied successfully in the construction of civil engineering. Experimental study on geopolymer concrete incorporating ggbs v. Geopolymer concrete shall be produced without using any amount of ordinary portland cement. Durability study on lignite fly ash based geo polymer concrete. Sumajouw, studies on flyash based geopolymer concrete,geopolymer. Test procedures the geopolymer concrete was mixed in the following order. The compressive strength of geopolymer concrete is about 1.
Use of geopolymer reduces the demand of portland cement which is responsible for high co2 emission. Experimental study on geopolymer concrete incorporating ggbs. Dec 02, 2012 the compressive strength of geopolymer concrete is about 1. Kanta rao abstract the major problem the world is facing today is the environmental pollution. Geopolymer concrete is totally cement free concrete. In geopolymer, fly ash act as binder and alkaline solution act as an activator. It is understood from the earlier studies that good scientific information is available on the evaluation of chemical and physical properties of geopolymer concrete. The sulfate resistance is explored through tests under heat curing condition and compressive strength, mass, length, and surface appearance of the specimens observed to evaluate geopolymer concrete sulfate resistance. As geopolymer concrete is a new material in which cement is totally replaced by. Experimental study of geopolymer concrete with manufactured sand.
Previous studies on reinforced geopolymer concrete revealed the flexural behavior of geopolymer concrete beam with natural sand only. It has been found that geopolymer concrete has good engineering properties with a reduced carbon footprint resulting from the total replacement of normal portland cement. The curing temperature in the range of 60c to 90c increases, the compressive strength of flyash based experimental study of geopolymer concrete with manufactured sand janani r, revathi a. Geopolymer concrete a new ecofriendly material of construction. The paper describes the results of the tests conducted on largescale reinforced geopolymer concrete members and illustrates the application of the geopolymer concrete in the construction industry. Similarly the geopolymer concrete showed good workability as of. Geopolymer concrete is an innovative and ecofriendly construction material and an alternative to portland cement concrete. In geopolymer concrete preparation, naoh of 8 molarity concentration is. Some recent applications of geopolymer concrete in the precast construction and. Establishing a mix design procedure for geopolymer concrete. Chemical formulation of geopolymer concrete with msand. Flexural behaviour of geopolymer concrete beams using. The slump value of the fresh geopolymer concrete increases when the water of the mixture increases rangan, 2003. Geopolymer concrete is formed with same combine proportion.
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