In the construction industry mainly the production of portland cement will causes the emission of pollutants results in environmental pollution. Experimental study on metakaolin and ggbs based geopolymer concrete b. In geopolymer, fly ash act as binder and alkaline solution act as an activator. Jan 09, 2017 geopolymer concrete is an innovative and ecofriendly construction material and an alternative to portland cement concrete. Purushothaman show that geopolymer concrete gc containing. Ordinary portland cement production is the second only to the automobile as the major generator of carbon di oxide, which polluted the atmosphere. Practical recommendations on use of geopolymer concrete technology in practical applications such as precast concrete products and waste encapsulation need to be. Most downloaded construction and building materials articles. Polymer concrete composites possess a unique combination of properties dependent on the formulation. This dissertation addresses this requirement for a standard mix design for geopolymer concrete. An experimental study on slagfly ashbased geopolymer concrete 15 table 4.
Fresh concrete mix 100 200 mm steel cylindrical mould in three layers. The compressive quality of geopolymer cement is around 1. Geopolymer concrete has become a very popular subject of research in recent years. The compressive strength of geopolymer concrete is about 1. Geopolymer concrete is an innovative and ecofriendly construction material and an alternative to portland cement concrete. Mixing of geopolymer concrete the fly ash, fine aggregates and coarse aggregates were mixed in a container and then the alkaline solution was added to prepare the geopolymer concrete. Figure 7 shows that the geopolymer concrete possesses a lower fracture energy than the opc concrete, and the measured g f values fall below the value predicted by the cebfip relationship equation 11. Accepted manuscript version of journal of materials science paper final citation is. Free fulltext mdpi publisher of open access journals. Experimental study on metakaolin and ggbs based geopolymer.
These significant changes to the grac samples could be attributable to the deteriorated properties rendered to the geopolymer by the increase of the wc ratio. Geopolymer cement, geopolymer technology, fly ash zeobond. Fracture properties of geopolymer paste and concrete. Attempt was also made to utilise lime sludge, a waste from paper industry with. View geopolymer concrete research papers on academia. Arumairaj2 1assistant professor selection grade, department of civil engineering, sri ramakrishna institute of technology, coimbatore, india. Durability is another important aspect of concrete. Geopolymer concrete for durable linings tunneltalk. Similar to the sulfate aggression on geopolymer concrete mass, the dimension of geopolymer concrete is extremely low. International research journal of engineering and technology irjet eissn. Performance evaluation of fly ashbased geopolymer concrete.
The influence of using cement on the residual properties of fly ash geopolymer concrete fagc after exposure to high temperature of up to 800 c was studied in terms of mass loss, residual compressive strength and microstructure. In this paper, two artificial intelligence approaches, namely adaptive neuro fuzzy inference anfis and artificial neural network ann, were used to predict the compressive strength of gpc, where coarse and fine waste steel slag were used as aggregates. Geopolymer concrete properties, composition and applications. Concrete is the worlds most versatile, durable and reliable construction material. Dec 02, 2012 geopolymer concrete has the potential to substantially curb co2 emissions produce a more durable infrastructure capable of design life measured in hundreds of years conserve hundreds of thousands of acres currently used for disposal of coal combustion products protect aquifers and surface bodies of fresh water via the elimination of fly ash. Study on fly ash based geopolymer concrete using admixtures. Chemical formulation of geopolymer concrete with msand. The geopolymer concrete was placed in 100 mm cube moulds. Reducing the greenhouse gas emissions is the need of the hour. Geopolymer concrete sustainable cementless concrete. You will find science, chemistry, formulas and very practical information including patents excerpts covering. Geopolymer concrete is totally cement free concrete. As in the case of portland cement concrete, the coarse and fine aggregate occupy about 75 to 80% of the mass of fibre geopolymer concrete. The experimental results showed that the geopolymer concrete.
In this paper, fly ash is used to produce a geopolymer concrete. This can be observed from geopolymer expansion which is lower than 0. The fracture energy of concrete is generally believed to be governed by the microstructure of the paste and the size, texture and angularity of. Engineering and manufacturing alkalies aluminum compounds analytic geochemistry concrete concretes materials mechanical properties production processes electric power plants electric powerplants geology hydroxides limestone. Fly ashbased geopolymer concrete long term properties 18 fagpconcrete. The main reason for its popularity is that the use of geopolymers carries the potential of totally replacing portland cement as the cementitious material. Geopolymer materials represent an innovative technology that is generating considerable interest in the construction industry, particularly in light of the ongoing emphasis on sustainability. Pathways and barriers for acceptance and usage of geopolymer concrete in mainstream construction. Test procedures the geopolymer concrete was mixed in the following order.
The effect of ordinary portland cement substitution on. Geopolymer based cementitious binder is one of the recent findings in the emerging concrete technology. Use of geopolymer reduces the demand of portland cement which is responsible for high co 2 emission. Geopolymer cement is high contrasted with the standard portland concrete. In australia fibrereinforced geopolymer concrete is being used in precast panels in. Investigation oncompressive strength development of geopolymer. Techbrief briefly describes geopolymer concrete materials and explores some of their strengths, weaknesses, and potential applications. 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. Experimental study of the geopolymeric recycled aggregate. Geopolymer is a material resulting from the reaction of a source material that is rich in silica and alumina with alkaline solution. The influence of aggregates, such as grading, angularity and strength are considered to be the same as in the case of normal concrete 11. Report by international journal of applied engineering research. Geopolymer concrete using steel and polypropylene fibres, international journal of applied engineering research, vol.
Use of geopolymer reduces the demand of portland cement which is responsible for high co2 emission. Performance of geopolymer concrete with polypropylene fibres. A study on strength properties of geopolymer concrete with. Flexural behaviour of combined faggbfs geopolymer concrete. A cement is a binder, whereas concrete is the composite material resulting from the mixing and hardening of cement with water or an alkaline solution in the case of geopolymer cement, and stone aggregates. Sep 09, 2016 these significant changes to the grac samples could be attributable to the deteriorated properties rendered to the geopolymer by the increase of the wc ratio. As in the case of normal concrete, the coarse and fine aggregates occupy about 75 to 80% of the mass of geopolymer concrete. The test results indicated that the geopolymer concrete showed excellent. Flexural strengths of geopolymer concrete at 28 days. Citescore values are based on citation counts in a given year e. Current status and research needs article pdf available in indian concrete journal 892.
Geopolymer concrete shows significant potential to be a material for the future. Similarly the geopolymer concrete showed good workability as of the ordinary portland cement concrete. Fly ash, geopolymer concrete, strength, nano slag, curing, xrd, alkaline. Geopolymer was the name given by daidovits in 1978 to materials which are characterized by. When the minimum ratio of wc is applied, the fly ashbased geopolymer renders better mechanical properties to the concrete specimens than the ordinary portland cement. Five to eight percent of the worlda s manmade greenhouse gas emissions are from the cement industry itself. 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. College of engineering and technology, karaikudi, india. Earth friendly concrete efc is a proprietary geopolymer concrete developed by the australian company wagners that is a viable and sustainable alternative to portland cement based systems. Geopolymer concrete also showed very high early strength. Geopolymer concrete a new ecofriendly material of construction. In this study, geopolymer concrete contains fly ash, ground granulated blast furnace slag ggbs, alkaline solutions, fine aggregate. Experimental study on geopolymer concrete incorporating ggbs. Concrete obtained from geopolymer known to exhibit many excellent properties such as high compressive strength, low creep, good acid resistance and low shrinkage.
Four geopolymer concrete beams and four opc concrete. Georges grimal, dramatized sculptures in geopolymer. Pdf the demand of concrete is increasing day by day and cement is used for satisfying the need of development. The demand for concrete in the construction field is increasing day by day. The remaining mixes have shown significant flexural strengths. In the construction industry mainly the production of portland cement will causes the emission of. Strength and durability of fibre reinforced geopolymer concrete. Ii issue ijanuarymarch 20111925 research article geopolymer concrete.
Experimental study on geopolymer concrete incorporating ggbs v. The composites do not contain a hydrated cement phase, although portland cement can be used as an aggregate or filler. The most potential source of geopolymers among the industrial waste or byproduct materials, are fly ash and blast furnace slag. View experimental study on geopolymer concrete research papers on academia. Table 4 constituents of geopolymer concrete element weight% o 52. Kanta rao abstract the major problem the world is facing today is the environmental pollution. The present study investigates the setting and strength properties of geopolymer mixtures containing binary combinations of bentoniteflyash, bentonitecement, bentonitesilicafume and ternary blends of bentoniteflyashlime. Pdf application of geopolymer concrete researchgate.
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. Geopolymer concrete gpc has been used as a partial replacement of portland cement concrete pcc in various construction applications. From table 4, it can be observed that the geopolymer concrete without slag mix no. Engineering and manufacturing alkalies aluminum compounds analytic geochemistry concrete concretes materials mechanical properties production processes electric power plants electric powerplants geology hydroxides limestone polymers properties usage power. Indeed, the fire resistance of ecrete has been tested to be well in excess of double that of traditional concrete. Properties of geopolymer concrete with low calcium fly ash. Geopolymer chemistry and applications joseph davidovits. 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. Fly ash based geopolymer concrete open access journals. It has served civil engineering community, cementitious building material manufacturers, construction companies and infrastructure policy makers since 1927. Geopolymer concrete is an innovative construction material which shall be produced by the chemical action of inorganic. International journal of civil engineering and technology ijciet.
Strength and durability of fibre reinforced geopolymer. Mix proportions for the three slagfly ashbased geopolymer concrete mixtures studied c. The mass loss was found to increase with the increase of exposure temperature, which is attributed to vaporization of water and dehydroxylation of sodium. This component of fibre geopolymer concrete mixtures can be designed using the tools currently available for. The manufacture of geopolymer concrete is carried out using the usual concrete technology methods as in the case of opc concrete in applied mechanics laboratory of s. Experimental study on geopolymer concrete incorporating. The properties of geopolymer cement, when used to make concrete, have been repeatedly and independently shown to be equivalent to other cements in terms of the structural qualities of the resulting concrete. Experimental study on geopolymer concrete research papers. Geopolymer concrete additionally indicated high early quality. A study on strength properties of geopolymer concrete with addition of g. Commonly, waste materials such as fly ash or slag from iron and metal production are used, which helps lead to a cleaner environment.
Journal of engineering research and studies eissn 09767916 jersvol. Geopolymer concrete is a type of concrete that is made by reacting aluminate and silicate bearing materials with a caustic activator. Pdf download for behaviour of geopolymer concretefilled pultruded. The geopolymer concrete was dark in colour with shiny appearance. What makes it even more attractive to use is the fact that its raw component is usually an industrial by. Geopolymer concrete has the potential to substantially curb co2 emissions produce a more durable infrastructure capable of design life measured in hundreds of years conserve hundreds of thousands of acres currently used for disposal of coal combustion products protect aquifers and surface bodies of fresh water via the elimination of fly ash. Polymer concrete is a composite material in which the aggregate is bound together in a matrix with a polymer binder. Cement is used as a binder material in concrete which is highly energy intensive and emits co2 to the atmosphere which. 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. Establishing a mix design procedure for geopolymer concrete. Concrete is one of the widely used composite materials. Comparative study on the production cost of geopolymer and. There is often confusion citation needed between the meanings of the terms geopolymer cement and geopolymer concrete.
680 379 1352 1545 891 1163 340 322 651 638 389 123 702 553 96 387 604 1178 88 219 1639 1651 1241 934 439 1127 1147 1482 861 294 211 548 464 819