Experimental study on metakaolin and ggbs based geopolymer concrete b. Development of geopolymer mortar under ambient temperature for. Effect of glass powder and ggbs on strength of fly ash. Geopolymer concrete with ground granulated blast furnace. The ggbs based geopolymer mortar has a very good resistance in acid media in terms of weight loss and residual compressive strength. Strength properties of fly ash and ggbs based geopolymer. A study on fly ash and ggbs based geopolymer concrete under ambient curing journal of emerging technologies and innovative research 2 7 2015 30823087. Comparative study on the production cost of geopolymer and. Siddhartha institute of technology, kanuru, vijayawada, andhra pradesh, india.
Pdf granulated blastfurnace slag ggbs based geopolymer. This study explored the compressive strength of ecoefficient ggbs based geopolymer concrete gpc containing natural zeolite nz and silica fume sf for the first time. Traditional cement manufacturing consumes a large quantity of energy and emits high. The present experimental study aims to develop the geopolymer concrete under ambient curing. The test results not ed the good mechanical properties and measured stressstrain relations of fly ash and ggbs based geopolymer concrete under ambient curing conditions. Study on fly ash and ggbs based geopolymer concrete under ambient curing. Mechanical properties of geopolymer concrete with fly ash. A subsequent research report gc3 covers the behaviour and strength of reinforced geopolymer concrete structural beams and columns. Preparation of test specimens the materials for the mixes were weighed and first mixed in dry condition for 34 minutes. Groundgranulated blast furnace slag is highly cementitious and high in csh calcium silicate hydrates which is a strength enhancing. Durability study of geopolymer concrete cured at ambient. Durability is another important aspect of concrete.
Geopolymer concrete is prepared by using an alkaline solution of the suitable chemical composition. Shadi riahi ali nazari the effects of nanoparticles on early age compressive strength of ash based geopolymers ceramics international 38. In this study, geopolymer concrete is produced with fly ash and sodium hydroxide and sodium silicate is used as a binder. Geopolymer concrete, flyash, ggbs, rha, alkaline activators 1. Ramujee 1department of civil engineering vnrvjiet hyderabad, telangana, india 2associate professor m. This investigation reports the development of mix design, effect of steel fibre to the impact resistance of pofa ggbs based lightweight geopolymer concrete. Then the alkaline solution, which is a combination of sodium hydroxide and sodium silicate, and the. Blast furnace slag ggbs with the addition of steel fibers.
The replacement of 15%, 20% and 25% fly ash with ground granulated blast furnace slag ggbs and the addition of 5%, 10% and 15% of glass powder have been done and cured under ambient curing. Extensive studies conducted on fly ash based geopolymer concrete are presented. To optimize the mix design for aas alkali activated slag concrete. One such alternative is geopolymer concrete gpc, this concrete uses no portland cement, pozzalonic materials like fly ash and ggbs, rich in silica and alumina are used. It has topped in total number of cites and citable documents. Cement was used to prepare normal concrete for the comparison with fly ash based geopolymer concrete. The geopolymer concrete has stepped in the construction industry as an alternate to the cement based concrete. Experimental investigation on geopolymer concrete by using. Astm c188 was followed to measure the specific gravity. Geopolymer synthesis ionic coordination or covalent bonding.
Fly ash was obtained from the boral company, australia, and used in this research as the main constituent of the binding materials in geopolymer concrete. The objective of the present work is to study the effect of ggbs in fly ash based geopolymer concrete and to study the effect of oven curing and ambient room temperature curing on them. Ggbs ground granulated blast furnace slag, geopolymer, compressive strength, ordinary portland cement 1. Many of the research about geopolymer concrete states that it has potential to replace the cement based concrete in many countries. Engineers to investigate an alternative to conventional concrete. Durability studies on alkali activated fly ash and ggbs. Bragg published a method for classifying all kinds of silicates and their crystal structures based on the concept of the ionic theory by linus pauling. The present study investigates the setting and strength properties of geopolymer mixtures containing binary combinations of bentoniteflyash, bentonitecement, bentonitesilicafume and ternary blends of bentoniteflyashlime. Based on the study carried out, replacement of ggbs in fly ash upto 50% produced better compressive strength and tensile strength of 39.
According to this study, the strength of geopolymer concrete is improved as dosage and silicate. Fly ash is replaced by ggbs in proportions of 25%, 50% and 75% to enhance various properties of concrete. Experimental study on mechanical properties of geopolymer. Geopolymer concrete with ground granulated blast furnace slag and. Following materials are generally used to produce gpccs.
Figure 2 change in compressive strength of geopolymer concrete exposed to acidic environment. These properties have been determined at different curing periods like 7, 28, 56 and 90 days and at. Strength and durability properties of alkali activated. This study includes the development of geopolymer mortars under outdoor curing and suggests the attainment of strength with proper proportions of ggbs and fly ash. The mechanical properties are higher for geopolymer concrete and rate of gain of geopolymer concrete is very fast at 7 days curing period. Study on fly ash and ggbs based geopolymer concrete under ambient curing 1 rohit zende, 2 mamatha. Ggbs replacement adopted was 0% to 25% in steps of 5%. The study also analyses the impact of steel fibers on the workability and mechanical properties of gpcc.
And by replacing fly ash from 0 to 100% with ggbs and inspecting. The inclusion of fa in the ggbs based geopolymer mixture was found to be a suitable base of geopolymer mortar under ambient curing conditions. Geopolymer concrete, sodium silicate, sodium hydroxide, fly ash, granulated blast furnace slag, compressive. Sorptivity test were conducted on geopolymer concrete for the mix design mentioned in table 2. Study on fly ash and ggbs based geopolymer concrete under. Geopolymer based cementitious binder is one of the recent findings in the emerging concrete technology. The mechanical and microstructural properties of fa ggbs hmns based geopolymer paste and concrete were investigated experimentally in this paper. However, the specific objectives are listed as follows. 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. To study the strength and durability properties of metakaolin and ground granulated blast furnace slag ggbs based geopolymer concrete mixes at various proportions. Experimental investigation on geopolymer concrete by using ggbs written by m. Geopolymer was the name given by daidovits in 1978 to materials which are characterized by chains or networks or. P et al studied the variation of workability of flyash and ggbs based geopolymer concrete.
The main objective of this study is to evaluate the strength, durability and suitability of slag ggbs based geopolymer concrete as an alternative of conventional concrete. Mechanical properties and microstructure analysis of fa. Groundgranulated blastfurnace slag ggbs or ggbfs is obtained by quenching molten iron slag a byproduct of iron and steelmaking from a blast furnace in water or steam, to produce a glassy, granular product that is then dried and ground into a fine powder. Salient factors that influence the properties of the geopolymer concrete in the fresh and hardened states are identified. Test data of various shortterm and longterm properties of the geopolymer concrete are then presented. It is well understood that the compressive strength is the principal property concrete. Compressive strength prediction of ecoefficient ggbs. Geopolymer mortar incorporating high calcium fly ash and. Geopolymer concrete with ground granulated blast furnace slag and black rice husk ash 4. Effect of addition of ggbs and glass powder on the. Cost analysis for geopolymer concrete and ordinary portland cement concretes the cost of production of 1 m3 of opc of grades m30 and m50 are calculated based on the quantities of the ingredient materials and is shown in table 2. Vijayan published on 20180730 download full article with reference data and citations. In this study geopolymer concrete is prepared with ground granulated. The sem micrograph and xrd result show that the formation of csh gel.
Design of geopolymer concrete mixtures studies have been carried out on fly ashbased geo polymer concrete. This investigation is mainly focused on performance of fly ash fa and ground granulated blast furnace slag ggbs based gpc in acid environment. Geopolymer concrete gpc is becoming a sustainable concrete when comparing to ordinary portland cement opc concrete. Mix design procedure for conventional cement concrete and geopolymer concrete introduction geo polymer concrete gpc represents a rather recent development in concrete materials technology and its ggbs based concrete, possessing the most desirable properties during fresh as well as hardened concrete stages. Geopolymer concrete made up of ggbs and alkaline solution provides, a new era in the construction industry.
Geopolymer concrete with flyash and ggbs at ambient. Normal ggbfs based gpc prepared as a reference for evaluating the durability characteristics of geopolymer concretes. It is a combination of solutions of alkali silicates and hydroxides, besides distilled water. Geopolymer concrete is an innovative and ecofriendly construction material and an alternative to portland cement concrete.
The effects of using ggbs and hnms as a partial replacement of fa on the compressive strength and splitting tensile strength of the mixed gp paste and gp concrete were examined. Use of geopolymer reduces the demand of portland cement which is responsible for high co 2 emission. In the present investigation, it is proposed to study the mechanical properties viz. The fly ash based geopolymer concrete was prepared with bagasse ash and metakaolin which were used to replace fly ash at different percentages i. In this connection, geopolymer is showing great potential and does not need the presence of portland cement as a binder. Tech student, 2 assistant professor department of civil engineering, east west institute of technology, bengaluru, karnataka, india abstract construction has been most important human activity since ancient time. Granulated blast furnace slag ggbs based geopolymer concrete mixes at various proportions. Microstructure and mechanical properties of faggbsbased geopolymer. Study on the mechanical properties of ggbs based geopolymer concrete using silica fume as a partial replacement w. With alkaline solution sodium hydroxide and sodium silicate as binders these form aluminasilicate gel. Strength and durability of fibre reinforced geopolymer. Research work was carried out on fly ash and ggbs based geopolymer mortar subjected to.
Experimental investigation on blended geopolymer mortar dome. Geopolymer concrete, ggbs, fly ash, sodium silicate, sodium. The fly ash based geopolymer concrete consists 75%. It is found that geopolymer concrete is 14% cheaper than concrete of the same strength using opc. Objectives immobilization of heavy metal in ifa by ggbs geopolymer binder o nonhazardous landfill ggbs ifa geopolymer as construction materials o nonstructure concrete application. These properties have been determined at different curing periods like 7, 28, 56 and 90 days and at ambient room temperature. Heatcured lowcalcium fly ash based geopolymer concrete. Geopolymer concrete gpc, geopolymer concrete composites gpcc containing 80% fly ash fa, 20% ground granulated blast furnace slag ggbs. However further study requires to set optimum amount of fa and sf in ggbs based geopolymer concrete. Sodium based alkaline liquid is used as an activator. Compressive strength the compressive strength of geopolymer concrete cubes at th7 thday and 28 day, according to is 5161959 are shown in table 4 and chart1.
Tech phd department of civil engineering vnrvjiet hyderabad, telangana, india email. Granulated blastfurnace slag ggbs based geopol ymer. Ggbs makes significant impact on the strength of geopolymer concrete. Pdf microstructure and mechanical properties of faggbsbased. Introduction in 1972, davidovits 8 found the geo polymerization process and had invented the geo polymer highstrength cement in 11 years later. Pdf performance of fly ash and ggbs based geopolymer. Based on the results of the experimental study some important conclusions have been drawn.
The compressive strength and the workability of geo polymer concrete are influenced by the proportions and properties of the constituent materials that make the geo polymer paste. Satya eswara sanyasi rao department of civil engineering, maharaj vijayaram gajapathi raj college of engineering, vizianagaram, andhra pradesh, india. Ggbs a mineral admixture of silicates and aluminates of ca and other bases same main chemical constituents as opc but in different proportions improves compressive strength. Study on fly ash and ggbs based geopolymer concrete. Geopolymer concrete properties, composition and applications. In this study, geopolymer concrete is produced with fly ash and sodium hydroxide and.
232 1422 562 619 507 1539 634 1149 273 1235 14 641 1240 1179 1279 1484 1174 419 913 345 1050 992 1088 1256 883 1333 1100 1136 786 1159 1107 925 1459