Influence of silica fume and ground granulated blast furnace slag …
The supplementary cementitious materials (SCMs) are used as an alternative material to reduce environmental concerns. Using industrial waste as an SCM can also help to reduce the amount of garbage deposited in lagoons and landfills and can have strength, durability, economic and environmental benefits. Ultra-high performance concrete …
Hydration superposition effect and mechanism of steel slag powder …
The mechanical properties and hydration mechanism of ultrafine ground granulated blast furnace slag powder (UFS)-cement-steel slag powder (SS) ternary cementitious material systems were studied.
Mechanical Properties and Mechanisms of Polyacrylamide …
In this experiment, polyacrylamide (PAM) was used to improve the toughness of granulated blast furnace slag (GBFS)–based geopolymers. The water/binder (W/B) ratio was fixed at 0.5; the content of alkaline activator (Na 2 O wt %) was fixed at 6.0 wt%; and the alkaline activator modulus was fixed at 0.8. The effect of PAM (0, 0.25, 0.5, 0.75, …
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 …
Hydration superposition effect and mechanism of steel slag powder …
Steel slag has great potential as a supplementary cementitious material, and often shows good effects when used in combination with granulated blast furnace slag (GBFS). In order to reveal the interaction law of steel slag and GBFS, the hydration superposition effect and mechanism were studied in this paper in terms of ion dissolution, hydration heat, …
Optimization of compound activator ratio of the ground granulated blast …
In this paper, ground granulated blast furnace slag, steel slag, red mud, waste ceramic powder, and desulfurization gypsum were used as raw materials to develop a kind of multi-source solid-waste ...
Strengthening mechanism of granulated blast-furnace slag …
Magnesium potassium phosphate cements (MKPCs), blended with 50 wt.% fly ash (FA) or ground granulated blast furnace slag (GBFS) to reduce heat evolution, water demand and cost, were assessed using ...
The mechanism of hydration reaction of granulated …
The mechanism of hydration reaction of granulated blast furnace slag-steel slag-refining slag-desulfurization gypsum-based clinker-free cementitious materials - …
Removal of Hexavalent Chromium in Portland …
Using ground granulated blast-furnace slag (GGBS) under different alkaline conditions, we studied the mechanisms and extents of Cr(VI) reduction and sorption and compared them to reactions with Portland …
Efficiency of high energy over conventional milling of granulated blast
This work aims at bridging the efficiency of ball milling of granulated blast furnace slag (GBFS) to the structural and mechanical properties of slag cement pastes. Both conventional and high energy milling of GBFS are considered with a milling duration varied between 1 and 10 h. X-ray diffraction, infra-red spectroscopy, granulometry …
Analysing the influence of ground granulated blast …
This study examines the effect of Ground Granulated Blast Furnace Slag (GGBS) and steel fibers on the flexural behaviour of RC beams under monotonic loading. …
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 ...
Effects of Steel Fibers (SF) and Ground Granulated Blast Furnace Slag
The granulated slag is dry and ground to a fine powder, which is called ground granulated blast-furnace slag (GGBS). GGBS is usually off-white and has a bulk density of approximately 1200 kg/m 3 . The physical and chemical properties of GGBS used in this study are given in Table 3 .
Effect of coral powder and ground-granulated blast‑furnace slag …
As is well known, ground-granulated blast-furnace slag (GGBFS) is a byproduct of industry and has high hydraulic activity [34, 35]. The use of GGBFS in concrete is beneficial to the increase in the compressive strength of concrete [ 36, 37 ] and the durability of concrete structures [ 34, 38, 39 ].
The Influence of CaO and MgO on the Mechanical …
In their study, the compressive strength of blast furnace slag powder with MgO cured in the standard curing environment for 28 days is 1.3 times of that with …
Removal of Hexavalent Chromium in Portland Cement Using Ground
Abstract. Using ground granulated blast-furnace slag (GGBS) under different alkaline conditions, we studied the mechanisms and extents of Cr (VI) reduction and sorption and compared them to reactions with Portland cement (PC). We also investigated the effects of mixing PC/GGBS ratios on Cr (VI) dissolution after carbonating …
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.
Microstructural evolution and characterization of ground granulated …
In order to explore the difference of the activation effect on the ground granulated blast furnace slag (GGBFS) subjected to variant activators as well as to further clarify the depolymerization mechanism of GGBFS, investigation on the dissolved mechanism, hydrated characteristics and microstructural evolution were carried out …
Analysing the influence of ground granulated blast furnace slag …
Ground Granulated Blast Furnace Slag (GGBS), a by-product of the iron industry produced by quenching molten slag, has cement's chemical composition. About 530 million metric tonnes of GGBS are ...
Effects of steel slag powder on workability and durability …
The workability and durability of a type of sustainable concrete made with steel slag powder were investigated. The hydrated products of cement paste with ground granulated blast furnace slag (GGBFS) alone or with a combined admixture of GGBFS-steel slag powder were investigated by X-ray diffraction (XRD). Furthermore, the …
Fluidity Retention Effect of Slowly Cooled Blast Furnace Slag Powder
The flow of mortar with granulated slowly-cooled blast furnace slag and limestone powder is shown (Fig. 9) [15]. The flow loss of mortar with granulated slowly cooled blast furnace slag is smaller ...
Removal of Hexavalent Chromium in Portland Cement …
Using ground granulated blast-furnace slag (GGBS) under different alkaline conditions, we studied the mechanisms and extents of Cr(VI) reduction and sorption and compared them to reactions with ...
Hydration superposition effect and mechanism of steel slag powder …
Hydration superposition effect and mechanism of steel slag powder and granulated blast furnace slag powder. https://doi/10.1016/j.conbuildmat.2022.130101 ·
Study on the particle morphology, powder
The granulated blast furnace slag was provided by China Baowu Steel Group Guangdong Shaoguan Iron and Steel Co., Ltd. The slag was ground separately …
Ground Granulated Blast Furnace Slag
11.2.2 Ground-granulated furnace slag. Ground granulated blast-furnace slag, GGBFS, is a by-product of iron in blast-furnace. It mainly consists of silicate and aluminosilicate of melted calcium that periodically needed to be removed from the blast furnace. Similar to fly ash, the chemical compositions of GGBFS depend on the row materials used ...
Composite Cements Using Ground Granulated Blast Furnace Slag…
In recent decades, alkali activated and blended cements have attracted great interest worldwide due to their advantages of low energy cost, high strength, and good durability. This study evaluated the effects of replacing 50% of Portland cement with a mixture of three waste materials: ground granulated blast furnace slag (GGBFS), fly …
A Comprehensive Review on the Ground Granulated Blast Furnace Slag
With respect to the mechanical properties, durability and thermal behavior, ground-granulated blast-furnace slag (GGBS) delineates a rational way to develop sustainable cement and concrete. Apart from environmental benefits, the replacement of cement by GGBS illustrates an adequate way to mitigate the economic impact.
Identification of the Elemental Composition of Granulated Blast Furnace
Blast furnace slag is a key large-tonnage waste product of metallurgical production, which is considered to be a promising alternative material in construction. In order to determine the scope of potential use of slag as a marketable product, it is necessary to study its structure and composition, which is determined by means of …
A Comprehensive Review on the Ground Granulated …
With respect to the mechanical properties, durability and thermal behavior, ground-granulated blast-furnace slag (GGBS) delineates a rational way to develop …
Zhang BAIFA | Lecturer | Ph D | School of Environmental …
In this study, recycled powder (RP) was used to replace alkali-activated cement (AAC)'s precursors [i.e., fly ash (FA) and ground granulated blast furnace slag (GGBFS)] to produce recycled AAC (RAAC).