Effect of heat curing treatment on the drying shrinkage …
The effect of heat curing treatment that samples cured from room temperature to an elevated temperature of 60 °C for 24 h on the mass loss, drying shrinkage and microstructure of mortar incorporating ground granulated blast-furnace slag (GGBS) as cement replacement at 0%, 20%, 40% and 60% by weight was …
An Experimental Study on the Carbonation and Drying …
The effect of ground granulated blast-furnace slag (GGBS) and alkaline activator on the properties of setting, compressive strength, drying shrinkage and resistance of carbonation was assessed to ...
Electrical resistivity and piezoresistivity of cement mortar …
Ground granulated blast furnace slag (GGBFS) is a popular used supplementary cementitious material which can increase the resistivity of cement-based composites, contribute to the cement hydration, and dense the composite structure. ... After drying treatment, free water vaporised left only a layer of moisture that absorbed by the …
Dry Granulation of Blast Furnace Slag for Energy Recovery
Also there is the need of a proper water management on one hand and the necessity of the drying of the granulated BF slag on the other hand. So, not only the sensible heat of the liquid BF slag is lost, but it is also necessary to have an upstream slag drying unit for using the granulated BF slag in the cement industry. The drying …
Ground Granulated Blast Furnace Slag (GGBS) | Chemical …
Ground Granulated Blast Furnace Slag (GGBS) The importance of Ground Granulated Blast Furnace Slag (GGBS) lies in its greener way to become a substitute in concrete material. GGBS being a waste material, it needs proper method for disposal. So incorporating this waste material in concrete can reduce the depletion of …
A Comprehensive Review on the Ground …
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.
(PDF) Granulated Blast-Furnace Slag (GGBS) based
PDF | On Aug 24, 2018, Shabarish V. Patil and others published Granulated Blast-Furnace Slag (GGBS) based Geopolymer concrete - Review Concrete - Review | Find, read and cite all the research you ...
Comprehensive utilisation of blast furnace slag
1.1.2 The Lhasa method (RASA) The Lhasa method (RASA) water granulated slag treatment system was developed by Nippon Steel Pipe and the British trading company RASA and was first applied on blast furnace No. 1 at Fukuyama Steel Works in Japan [Citation 4].The principle of the RASA method is that after the blast …
Granulating Dryer|Steel Slag Dryer-Fote Machinery
Granulating Dryer Introduction Granulating dryer is a steel slag dryer for drying large scale of materials, and it has large production capability, large application scope, small flow resistance and convenient operation. Steel …
Granulated Blast Furnace Slag | SpringerLink
Water granulated slag seems to be less easily ground than Portland cement. The pelletized slag, because of its porous structure requires less energy to grind than granulated slag. ... Results on the drying shrinkage of slag cement concretes are conflicting. This is due to the variations in the slag properties, cement properties, curing ...
(PDF) RECENT DEVELOPMENTS IN DRY SLAG …
and energy consumption (due to need for slag drying). As such, wet granulation is a . ... water granulated slag, and (3) 20% replacement of OPC with ground atomized slag. 210.
Strength properties of dredged soil at high water content …
Ground granulated blast furnace slag (GGBS) is a by-product of the manufacture of iron, and is produced in large amounts globally. As a latent hydraulic material, the effect of lime slag- and magnesia-activated GGBS on soil stabilization has been investigated, and the results show that the activated GGBS works better to …
Dry Slag Granulation – The Future Way to Granulate …
The technological factors required to improve the operational properties of granulated metallurgical slags demanded in the building industry have been analyzed. …
Drying Technologies for Mineral Raw Materials
The drum dryers are available in single-shell, double-shell and triple-shell versions and the design ensures high performance in a small space. Special versions also allow for the …
The Effect of Ground, Granulated Blast Furnace Slag …
w/cm, % slag, % Al2O3 in the slag, and slag Blaine. Drying shrinkage values after 28, 56, 114, and 365 (or 448 days, 64 weeks) days were tabulated where available.
Drying shrinkage and microstructure characteristics of …
Section snippets Materials. In the present study, ground granulated blast furnace slag (GGBFS) samples with fineness values of 3000, 4000 and 8000 cm 2 /g were used as the replacement of cement, with up to 45% by weight of cement replaced. Three types of cement, i.e., ordinary Portland cement (N), moderate heat Portland cement (M), …
Treatment of waste marine clay by alkaline-activated ground granulated …
Treatment of waste marine clay by alkaline-activated ground granulated blast-furnace slag and municipal solid waste incineration bottom ash. Author links open overlay panel Saiou Fu a b, Ping Wang b ... Hubei Province, China. The WMC and MSWIBA underwent drying to a constant weight at 105 °C, followed by crushing and …
GROUND GRANULATED BLAST FURNACE SLAG
Since the granulated blast furnace slag is ground, it is not round. An admixture is needed to increase workability rather than increasing the water content. ... GGBFS also causes increased drying shrinkage. When …
Blast Furnace Slag
Utilization and efficiency of ground granulated blast furnace slag on concrete properties – A review. Erdoğan Özbay, ... Halil İbrahim Durmuş, in Construction and Building Materials, 2016. 1 Introduction. Blast furnace slag is a byproduct acquired in the production of pig iron in the blast furnace and is involving essentially of silicates and alumino-silicates of …
Blast Furnace Ironmaking
Today, blast furnace slag is a value added product for the cement industry, using granulated slag sand as CO2-friendly substitute of clinker in cement production. Paul Wurth has developed the INBA® slag granulation process, incorporating our proprietary dynamic INBA dewatering drum. With about 300 references, it is the most popular and ...
Pavement Performance of Fine-Grained Soil Stabilized by Fly …
Fly ash (FA) and granulated blast furnace slag (GBFS) were used as a precursor for geopolymerization to develop a low-carbon pavement base construction material. ... (UCS, splitting tensile strength, and flexural tensile strength) and durability (drying shrinkage, water stability, freezing and thawing resistance, and wet–dry cycle) …
Blast-furnace slag
12.1. Introduction. Blast furnace slag (BFS) which is defined "as the non-metallic product consisting essentially of silicates and alumina silicates of calcium and other bases, that is developed in a molten condition simultaneously with iron in a blast furnace" by ASTM C 125-16 (2016) has been widely used in construction industry for more than 80 …
Dry slag granulation: producing valuable by-products …
This method produces glassy slag for cement production and simultaneously recovers waste heat as hot air, which can be used onsite for drying, preheating or steam generation. Compared with water granulation, dry granulation provides a much more sustainable approach, overcoming major shortcomings of the existing method through saving water ...
New Slag for Nickel Matte Smelting Process and …
Then, the phase analysis of the water-granulated slag was made. XRD patterns were recorded with an X-ray diffractometer (Rigaku D/max2400, Japan) using Cu Ka radiation (k = 1.5444 A) operating at 42 kV and 100 mA. The scan rate of 4 deg s 1 was applied to record the patterns in the 2h range from 10 to 90 deg.
Drying shrinkage and microstructure characteristics of …
In the present study, ground granulated blast furnace slag (GGBFS) samples with fineness values of 3000, 4000 and 8000 cm 2 /g were used as the replacement of cement, with up to 45% by weight of cement replaced. Three types of cement, i.e., ordinary Portland cement (N), moderate heat Portland cement (M), and low …
Ground Granulated Blast-Furnace Slag | SpringerLink
Since the discovery of the latent hydraulic reactivity of ground granulated blast-furnace slag (ggbfs) by Emil Langen at the end of the 19th century, this material has been used successfully as cement and concrete addition. ... (2009) The effect of ground granulated blast furnace slag (slag cement) on the drying shrinkage of concrete—a ...
Slag Dry Granulation
Overview. Our dry slag granulation technology transforms molten slag from steel furnaces into granules using air stream, eliminating the need for water. The flexibility of the process allows obtaining granules of different sizes …
Dry slag granulation: producing valuable by …
Slag is a high volume by-product from the metal smelting process. Globally, hundreds of millions of tonnes of molten slags are produced each year. Slag is commonly air-cooled in large pits and landfilled or used for road …
Use of Fly-Ash Geopolymer Incorporating Ground Granulated Slag …
This paper focuses on stabilisation of kaolin clay at ambient temperature using fly-ash based geopolymer incorporating ground granulated blast-furnace slag (GGBFS). Comprehensive experimental programme was conducted including soil plasticity, compaction, unconfined compressive strength, durability and leaching. These tests were …
Unified Shrinkage Model for Concrete from Autogenous …
Pickett model developed for drying shrinkage. These results suggest that a unified shrinkage model, which combines autogenous and drying shrinkage, exists. The framework for such a model is presented, which incorporates relative humidity (RH), aggregate content, and restraint factor as major variables. GGBFS