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Effect of GGBS and Fly ash aggregates on properties of ...

fly ash (class f) which is obtained from Mettur thermal power plant, tamil nadu, india was used for the preparation of gPc. ggBS is obtained from astrra chemicals, chennai, India was used for replacement of fly ash in casting the gPc. fly ash aggregate (class c) with water curing and chemical curing replaces for coarse aggregate.

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STUDY ON STRENGTH AND DURABILITY OF FLY ASH AND GGBFS ...

natural minerals group whereas fly ash, silica fume, slag, rice-husk ash, red mud, etc., are by-product materials. For the manufacture of geopolymers, the choice of source materials depends mainly on their availability and cost, the type of application and the specific demand of the users [3].

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Application of Ground Granulate Blast Furnace .

A composite mineral binder was prepared by mixing ground granulate blast furnace slag (GGBS) and steel slag (GGBS/steel slag ratios are 1 : 1 or 3 : 2 by mass). The application of a composite binder in a massive concrete structure under severe sulphate attack is discussed by determining the hydration heat, adiabatic temperature increase, compressive strength, elastic modulus, chloride ion ...

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Chloride penetration and carbonation in blended .

Chloride penetration and carbonation in blended OPC-GGBS, alkali activated slag, and fly ash based geopolymer concrete. Research has shown that alkali activated binders can achieve similar strengths to both ordinary Portland cement (OPC) and blended cements.

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Fly ash or GGBS? - International Cement Review

Fly ash and ground granulated blastfurnace slag (GGBS) are regarded as conventional cement constituents in much of the world. The proportions used in concrete-making vary quite considerably and the price of the material is key when it comes to producing a cubic metre of concrete to the required specification at the lowest possible cost.

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Non-Portland Cement Activation of Blast Furnace Slag - Fly Ash

cement in concrete compared to other pozzolans [6], such as coal combustion fly ash. [5] Common examples of pozzolans are silica fume, metakaolin, and fly ash. [7,8] Research Strategy By directly and indirectly replacing Portland cement with slag, pozzolans, and other non-Portland additives/activators, it is believed that CO

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EXPERIMENTAL INVESTIGATION ON COPPER SLAG AS FINE ...

GGBS is used in this study for the partial replacement of Portland cement. GGBS is the by-product obtained during the manufacture of pig-iron. When coke, iron ores, and lime stone are sent into the furnace, the molten slag is obtained at the top layer of molten iron at a temperature of 15000C – 16000C. The slag obtained has the

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What is fly ash, slag, and silica fume and why do .

04-12-2017· This video introduces fly ash, slag and silica fume and discusses their properties.

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Ground granulated blast-furnace slag - Wikipedia

Ground-granulated blast-furnace slag (GGBS or GGBFS) is obtained by quenching molten iron slag (a by-product of iron and steel-making) from a blast furnace in water or steam, to produce a glassy, granular product that is then dried and ground into a fine powder.Ground-granulated blast furnace slag is highly cementitious and high in CSH (calcium silicate hydrates) which is a strength enhancing ...

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EXPERIMENTAL INVESTIGATION ON COPPER SLAG AS FINE ...

GGBS is used in this study for the partial replacement of Portland cement. GGBS is the by-product obtained during the manufacture of pig-iron. When coke, iron ores, and lime stone are sent into the furnace, the molten slag is obtained at the top layer of molten iron at a temperature of 15000C – 16000C. The slag obtained has the

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Experimental Study on Partial Replacement of .

With the study on the strength development on various high volume fly ash concrete ( with at least 50 % fly ash as binder) mixes, the following conclusions can be drawn. High volume fly ash concrete can be developed using GGBS upto 70% of fly ash as binder. As the GGBS content increases the workability reduces at the same water containing and w/c. With a combination of 70% fly ash 10 % of GGBS ...

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Fly ash concrete ppt - LinkedIn SlideShare

FLY ASH IN CONCRETE: Fly ash could be an expensive replacement for Portland cement in concrete and using it, improves strength, segregation and ease of pumping concrete. Fly Ash particles provide a greater workability of the powder portion of the concrete mixture which results in greater workability of the concrete and a lowering of water requirement for the same concrete consistency.

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Materials | Free Full-Text | Sulfate Resistance of ...

The object of this work was to develop a green concrete with an improved sulfate resistance. In this new type of concrete, recycled aggregates from construction and demolition (C&D) waste were used as coarse aggregates, and granulated blast furnace slag (GGBS) and fly ash-based geopolymer were used to totally replace the cement in concrete.

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Experimental Analysis of Partial Replacement of .

CONCLUSION: Replacing cement partially by GGBS and Fly Ash gives similar strength after 28 days.Various combinations of concrete gives variable results and maximum quantity of GGBS is 60% that can be replaced by cement and gains the required strength after 28 days.The use of GGBS and Fly Ash is more cheaper than cement and ecofriendly than conventional.

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Uses, Benefits, and Drawbacks of Fly Ash in .

17-02-2019· Applications for Fly Ash . Fly ash can be used as prime material in many cement-based products, such as poured concrete, concrete block, and brick. One of the most common uses of fly ash is in Portland cement concrete pavement or PCC pavement. Road construction projects using PCC can use a great deal of concrete, and substituting fly ash ...

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Concrete: Cement Substitutes - GGBS, PFA and more

Ground Granulated Blast-furnace Slag (GGBS) as a cement substitute. GGBS is a by-product of the iron and steel industry. In the blast furnace, slag floats to the top of the iron and removed. GGBS is produced through quenching the molten slag in water and then grinding it into a fine powder.

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Comparison of hydration properties between .

The hydration properties of cement-GGBS-fly ash blended binder and cement-GGBS-steel slag blended binder were compared. The experimental results show that the hydration rate of cement-GGBS-steel slag blended binder is higher than that of cement-GGBS-fly ash blended binder within 28 days, but lower than the latter after 28 days.

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Fly Ash Topic - concrete

01-07-2020· Fly ash is a by-product from the combustion of pulverized coal, and is widely used as an ingredient in hydraulic-cement concrete. Because it improves many desirable properties of concrete, it is introduced either as a separately batched material or as a component of blended cement. Fly ash reacts with the hydrating hydraulic cement to form a cementing medium.

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A Study on Performance of Fly Ash and GGBS Based Green ...

A. Fly ash Fly ash, known as pulverized-fuel ash, is precipitated electrostatically or mechanically from exhaust gases of coal-fired power stations. In this study, low-calcium Fly ash (Class F) was used as the main source material as 100% replacement of cement. The fly ash particles are spherical and grey in .

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Mechanical Properties of Geopolymer Concrete .

The objective of this project is to study the effect of class fly ash (FA) and ground granulated blast furnace slag (GGBS) on the mechanical properties of geopolymer concrete (GPC) at different replacement levels (FA0-GGBS100, FA25-GGBS75, FA50-GGBS50; FA75-GGBS25, FA100, GGBS0). Sodium silicate (Na2SiO3) and sodium hydroxide (NaOH) solution have been used as alkaline activators.

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Fly ash and Blast Furnace Slag for Cement Manufacturing

Fly ash and Blast Furnace Slag for Cement Manufacturing 1 Introduction 1.1 Context of this project The UK Government in close cooperation with the energy-intensive industrial sectors has developed Decarbonisation Roadmaps. To support the implementation of .

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The Difference in Slag Cement and Fly Ash - Slag .

Slag cement (Ground Granulated Blast Furnace Slag) and fly ash (Coal Combustion Product) are the most commonly used supplementary cementitious materials in construction today. While they are commonly used and similar in many ways, these materials produce different effects on concrete performance and this document will explore those differences.

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Effect of partial replacement of GGBS slag as fine ...

Effect of partial replacement of GGBS slag as fine aggregate and fly ash as cement on strength of concrete Deepak S Mhatre ... ABSTRACT This paper aims to study experimentally, the effect of partial replacement of fine aggregate by Steel Slag (SS), on the ... project needs.

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(PDF) Strength and Durability Studies on GGBS .

Most commonly used pozzalonas are fly ash, silica fume, metakaolin, ground granulated blast furnace slag (GGBS). This needs to examine the admixtures performance when blended with concrete so as ...

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