Non-Destructive Evaluation of Mortar with Ground Granulated …
Non-destructive evaluation using ultrasonic pulse velocity (V p) testing has extensive applications in the concrete industry.With advances in construction technology, the use of ground granulated blast furnace slag (GGBFS) as a partial replacement to cement in a concrete mix is growing in popularity primarily because it reduces the initial …
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A new technological approach to the granulation of slag melts of
The technological factors required to improve the operational properties of granulated metallurgical slags demanded in the building industry have been analyzed. In order to satisfy these factors, a new technology for hydro-vacuum granulation of slag melts (HVG) has been developed. It is shown that the main advantage of the proposed HVG …
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Microstructure and Durability of Ground Granulated Blast Furnace …
Ground granulated blast furnace slag is an eco-friendly material with regard to its production process and usage. In this study, slag cement (SC) is used to prepare …
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Properties and Mechanical Strength Analysis of Concrete Using …
Supplementary cementitious materials (SCMs) have been widely used to replace cement in recent years in order to reduce the burden of cement on the environment. In this study, fly ash (FA) and ground-granulated blast furnace slag (GGBFS) were used as long-term 40%, 50% and 60% replacement cement in order to explore the …
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Influence of the Addition of Ground Granulated Blast Furnace Slag…
This publication presents the results of a study of the effect of partial replacement of cement with waste and natural materials: ground blast furnace slag, fly ash and lime meal on the strength properties of mortars compared to a reference mortar without these additives. In subsequent tests, these materials were gradually replaced with up to …
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What is slag cement or ground granulated blast-furnace slag …
Slag cement or GGBFS is granulated blast-furnace slag that has been finely ground and that is hydraulic cement. When slag cement is mixed with water, however, the initial hydration is much slower than portland cement mixed with water; therefore, portland cement or salts of alkali metals, principally sodium and potassium or lime, are used to ...
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Granulated Blast Furnace Slag and its Effects on Concrete …
ASTM C125 as a "granulated blast-furnace slag that has been ground to cement fineness, with or without additions, and that is a hydraulic cement" (Slag Cement Association, 2021, p. 5). Slag is an SCM and is also a waste material from iron ore production as illustrated in Figure 1. Therefore, slag is classified as a recovered material as ...
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Fly ash and slag
The degree of granulated blast-furnace slag utilization in the composition of cement and concrete is over 90%, whereas the fly ash is about 30% [2]. The relatively low level of fly ash disposal use results from the variable quality [ 2 ] as well as from different coal combustion techniques, e.g. combination of coal combustion with the dry ...
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Ground Granulated Blast Furnace Slag | SpringerLink
Abstract. Ground granulated blast furnace slag (GGBS) is a by-product from the blast-furnaces used to make iron. Blast-furnaces are fed with controlled mixture of iron-ore, coke and limestone, and operated at a temperature of about 1,500°C. When iron-ore, coke and limestone melt in the blast furnace, two products are produced—molten iron ...
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Durability Properties and Microstructure of Ground Granulated …
Manufacturing Portland cement (PC) is a major contributor of greenhouse gases, responsible for about 5 % of all global carbon dioxide emissions (Habert and Roussel 2009).In comparison, the production of ground granulated blast-furnace slag (GGBS) requires less than a fifth of the energy and produces less than a tenth of the carbon …
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Properties of the Cement, Slag and Fly Ash Mixture …
This paper presents the results of research into the properties of the CEM II/C-M cements with a mixture of granulated blast furnace slag and siliceous fly ashes at 20 and 15% or 30 and 15%, …
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The Effects of Ground Granulated Blast-Furnace Slag Blending
GGBFS: Slag is a bi-product of iron and steel making industry. It is a non metallic material that mainly contains silicate, calcium, aluminate and various bases. It is obtained in the form of flakes which is ground to get a fine powder of having a fineness of 400–450 m 2 /kg and is called as GGBFS (Ground Granulated Blast Furnace Slag). In ...
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Performance of Ground Granulated Blast-Furnace Slag and Coal …
Ground granulated blast-furnace slag and siliceous coal fly ash are two major constituents in Portland cements due to their good durable properties in …
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Ground Granulated Blast-Furnace Slag | SpringerLink
1.1.1 History of Blast-Furnace Slag. The latent hydraulic reactivity of granulated blast-furnace slag (gbfs) was discovered in 1862 by Emil Langen in Germany (Lea 1971; Smolczyk 1978).The first use of slags in cements dates back to 1865, when in Germany a slag-lime cement was commercially produced.
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Reactivity Alteration of Granulated Blast Furnace Slag by …
Augmenting granulated blast furnace slag (GBFS) content in Portland Slag Cement (PSC) beyond the conventional limit of 70% is the stimulus for this study. Such enhancement other than bringing down the carbon footprint of cement conserves natural resources. However, beyond 70% slag incorporation, early strength gain of PSC is …
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Utilization of ground granulated blast furnace slag as partial …
The use of common supplementary cementitious materials such as fly ash and ground granulated blast furnace slag (GGBS) as partial cement replacement …
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Study on the mechanical properties and pore structure of …
Granulated blast furnace slag has irregular particles, many needle-like flakes, and a sizeable crushing value. Compared with ordinary self-compacting concrete, …
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TB-0102 — Ground Granulated Blast- Furnace Slag: Its
Slag activity is determined by the following formula: Slag activity index, % (SP / P) 100 Where: 1.Each material can be ground to its own optimum fineness 2.The proportions can be adjusted to suit the particular project needs. ASTM C989, "Standard Specification for Ground Granulated Blast-Furnace Slag for Use in Concrete and …
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Granulated Slag (GBS) – Tarmac
The rapid cooling of molten slag by large quantities of water produces sand-like granule aggregate. Primarily ground into a cement replacement known as ground granulated blast furnace slag (GGBS) this is used in ready …
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Blast-furnace slag
Granulated blast furnace slag (GBFS) is obtained by rapidly quenching the molten slag by using high-pressure water jets. It is glassy granular particles having generally smaller than 5 mm particle size like sand. The GBFS is often used after further processed by drying and then grinding to a very fine powder.
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Granulated Blast Furnace Slag and its Effects on Concrete …
Slag is defined by ASTM C125 as a "granulated blast-furnace slag that has been ground to cement fineness, with or without additions, and that is a hydraulic cement" (Slag …
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IOP Conference Series: Earth and Environmental Science
Abstract. Ground granulated blast furnace slag (GGBFS) is one of green construction materials that held benefits in producing sustainable and high-quality concrete. GGBFS is commonly used as supplementary cementitious materials in blended cement to reduce the need for Portland cement in mortar or concrete production.
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Blast Furnace Slag by FTIR-Spectroscopy and Chemometrics
shown [9–11] that metallurgical slag is also used in the production of acid-resistant concrete, slag-glass ceramics, heat-resistant concrete. Granulated blast furnace slag can also be used for soil stabilization [11]. It was shown [12–15] that the addition of granulated blast furnace slag activates the process of
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Ground Granulated Blast Furnace Slag in Concrete & its …
The ground granulated blast furnace slag (GGBFS) is a by-product of iron manufacturing which when added to concrete improves its properties such as workability, strength and durability. This material is obtained by the heating of iron ore, limestone and coke at a temperature about 1500 degree Celsius. The process is carried out in a blast furnace.
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Fly ash and slag
The degree of granulated blast-furnace slag utilization in the composition of cement and concrete is over 90%, whereas the fly ash is about 30% [2]. The relatively low level of fly ash disposal use results from the variable quality [2] as well as from different coal combustion techniques, e.g. combination of coal combustion with the dry ...
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Slag Cement
Portland slag cement, which is most commonly used in the region, was used for the study complying with IS 455 [21].Its specific gravity was 2.87 having initial and final setting times of 70 minutes and 480 minutes, respectively.For fine aggregate, natural sand was used, having a maximum size of 4.75 mm.Its specific gravity was 2.72, conforming to Zone-III, and …
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Effects of Ground Granulated Blast Furnace Slag in Portland …
2001 by slag cement manufacturers and the Slag Cement Association, the American Concrete Institute officially reviewed and changed the terminology from GGBFS to slag cement (ACI Committee 233, 2004). The term slag cement will be used throughout this paper when referring to finely-ground granulated blast-furnace slag.
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Effects of Ground Granulated Blast Furnace Slag in Portland …
ordinary portland cement (OPC). Slag cement can therefore be substituted for OPC in a wide range of equal mass replacement ratios. Because the root blast-furnace slag …
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(PDF) Performance of imported granulated blast-furnace slag …
The utilization of two kinds of iron slag in the production of pozzolanic cement is introduced. A series was created with a fixed percentage of OPC (30%) and varying amounts of imported granulated ...
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Frontiers | Study on the relationship between the particle size
This study adopted the Rosin-Rammler-Bennett (RRB) equation to model the particle size distribution (PSD) of ground granulated blast furnace slag (GGBFS) and prepared four groups of GGBFS powders with a characteristic particle size De = 8–20 μm and uniformity coefficient n = 0.9–1.4 by means of grading and combining blast furnace …
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